* Re: [PATCH v8 2/4] sched: Rewrite runnable load and utilization average tracking
[not found] ` <1432518587-114210-3-git-send-email-yuyang.du@intel.com>
@ 2015-05-26 16:06 ` Vincent Guittot
2015-05-27 22:36 ` Yuyang Du
0 siblings, 1 reply; 13+ messages in thread
From: Vincent Guittot @ 2015-05-26 16:06 UTC (permalink / raw)
To: Yuyang Du
Cc: Ingo Molnar, Peter Zijlstra, linux-kernel, Paul Turner,
Benjamin Segall, Morten Rasmussen, Dietmar Eggemann,
arjan.van.de.ven, Len Brown, rafael.j.wysocki,
fengguang.wu@intel.com
On 25 May 2015 at 03:49, Yuyang Du <yuyang.du@intel.com> wrote:
[snip]
>
> @@ -2585,334 +2583,156 @@ static __always_inline int __update_entity_runnable_avg(u64 now, int cpu,
> periods = delta / 1024;
> delta %= 1024;
>
> - sa->runnable_avg_sum = decay_load(sa->runnable_avg_sum,
> - periods + 1);
> - sa->running_avg_sum = decay_load(sa->running_avg_sum,
> - periods + 1);
> - sa->avg_period = decay_load(sa->avg_period,
> - periods + 1);
> + sa->load_sum = decay_load(sa->load_sum, periods + 1);
> + sa->util_sum = decay_load(u64(sa->util_sum), periods + 1);
Hi Yuyang,
Brackets are missing around u64 to cast util_sum
>
> /* Efficiently calculate \sum (1..n_period) 1024*y^i */
> - runnable_contrib = __compute_runnable_contrib(periods);
> - if (runnable)
> - sa->runnable_avg_sum += runnable_contrib;
> + contrib = __compute_runnable_contrib(periods);
> + if (weight)
>
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v8 2/4] sched: Rewrite runnable load and utilization average tracking
2015-05-26 16:06 ` [PATCH v8 2/4] sched: Rewrite runnable load and utilization average tracking Vincent Guittot
@ 2015-05-27 22:36 ` Yuyang Du
0 siblings, 0 replies; 13+ messages in thread
From: Yuyang Du @ 2015-05-27 22:36 UTC (permalink / raw)
To: Vincent Guittot
Cc: Ingo Molnar, Peter Zijlstra, linux-kernel, Paul Turner,
Benjamin Segall, Morten Rasmussen, Dietmar Eggemann,
arjan.van.de.ven, Len Brown, rafael.j.wysocki,
fengguang.wu@intel.com
On Tue, May 26, 2015 at 06:06:23PM +0200, Vincent Guittot wrote:
> > + sa->util_sum = decay_load(u64(sa->util_sum), periods + 1);
>
> Brackets are missing around u64 to cast util_sum
>
My appology for this, and thank you, Vincent.
Sending the below patch here instead of sending the series.
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 2dd201e..a8fd7b9 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2584,7 +2584,7 @@ static __always_inline int __update_load_avg(u64 now, int cpu,
delta %= 1024;
sa->load_sum = decay_load(sa->load_sum, periods + 1);
- sa->util_sum = decay_load(u64(sa->util_sum), periods + 1);
+ sa->util_sum = decay_load((u64)(sa->util_sum), periods + 1);
/* Efficiently calculate \sum (1..n_period) 1024*y^i */
contrib = __compute_runnable_contrib(periods);
^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [PATCH v8 0/4] sched: Rewrite runnable load and utilization average tracking
[not found] <1432518587-114210-1-git-send-email-yuyang.du@intel.com>
[not found] ` <1432518587-114210-3-git-send-email-yuyang.du@intel.com>
@ 2015-06-02 0:25 ` Yuyang Du
2015-06-09 1:21 ` Yuyang Du
2 siblings, 0 replies; 13+ messages in thread
From: Yuyang Du @ 2015-06-02 0:25 UTC (permalink / raw)
To: mingo, peterz, linux-kernel
Cc: pjt, bsegall, morten.rasmussen, vincent.guittot, dietmar.eggemann,
arjan.van.de.ven, len.brown, rafael.j.wysocki, fengguang.wu
Ping once more...
On Mon, May 25, 2015 at 09:49:43AM +0800, Yuyang Du wrote:
> Hi Peter and Ingo,
>
> Changes are made for the 8th version:
>
> 1) Rebase to the latest tip tree
> 2) scale_load_down the weight when doing the averages
> 3) change util_sum to u32
>
> Thanks a lot for Ben's comments, which lead to this version.
>
> Regards,
> Yuyang
>
> v7 changes:
>
> The 7th version mostly is to accommodate the utilization load average recently
> merged into kernel. The general idea is as well to update the cfs_rq as a whole
> as opposed to only updating an entity at a time and update the cfs_rq with the
> only updated entity.
>
> 1) Rename utilization_load_avg to util_avg to be concise and meaningful
>
> 2) To track the cfs_rq util_avg, simply use "cfs_rq->curr != NULL" as the
> predicate. This should be equivalent to but simpler than aggregating each
> individual child sched_entity's util_avg when "cfs_rq->curr == se". Because
> if cfs_rq->curr != NULL, the cfs_rq->curr has to be some se.
>
> 3) Remove se's util_avg from its cfs_rq's when migrating it, this was already
> proposed by Morten and patches sent
>
> 3) The group entity's load average is initiated when the entity is created
>
> 4) Small nits: the entity's util_avg is removed from switched_from_fair()
> and task_move_group_fair().
>
> Thanks a lot for Vincent and Morten's help for the 7th version.
>
> Thanks,
> Yuyang
>
> v6 changes:
>
> Many thanks to PeterZ for his review, to Dietmar, and to Fengguang for 0Day and LKP.
>
> Rebased on v3.18-rc2.
>
> - Unify decay_load 32 and 64 bits by mul_u64_u32_shr
> - Add force option in update_tg_load_avg
> - Read real-time cfs's load_avg for calc_tg_weight
> - Have tg_load_avg_contrib ifdef CONFIG_FAIR_GROUP_SCHED
> - Bug fix
>
> v5 changes:
>
> Thank Peter intensively for reviewing this patchset in detail and all his comments.
> And Mike for general and cgroup pipe-test. Morten, Ben, and Vincent in the discussion.
>
> - Remove dead task and task group load_avg
> - Do not update trivial delta to task_group load_avg (threshold 1/64 old_contrib)
> - mul_u64_u32_shr() is used in decay_load, so on 64bit, load_sum can afford
> about 4353082796 (=2^64/47742/88761) entities with the highest weight (=88761)
> always runnable, greater than previous theoretical maximum 132845
> - Various code efficiency and style changes
>
> We carried out some performance tests (thanks to Fengguang and his LKP). The results
> are shown as follows. The patchset (including threepatches) is on top of mainline
> v3.16-rc5. We may report more perf numbers later.
>
> Overall, this rewrite has better performance, and reduced net overhead in load
> average tracking, flat efficiency in multi-layer cgroup pipe-test.
>
> v4 changes:
>
> Thanks to Morten, Ben, and Fengguang for v4 revision.
>
> - Insert memory barrier before writing cfs_rq->load_last_update_copy.
> - Fix typos.
>
> v3 changes:
>
> Many thanks to Ben for v3 revision.
>
> Regarding the overflow issue, we now have for both entity and cfs_rq:
>
> struct sched_avg {
> .....
> u64 load_sum;
> unsigned long load_avg;
> .....
> };
>
> Given the weight for both entity and cfs_rq is:
>
> struct load_weight {
> unsigned long weight;
> .....
> };
>
> So, load_sum's max is 47742 * load.weight (which is unsigned long), then on 32bit,
> it is absolutly safe. On 64bit, with unsigned long being 64bit, but we can afford
> about 4353082796 (=2^64/47742/88761) entities with the highest weight (=88761)
> always runnable, even considering we may multiply 1<<15 in decay_load64, we can
> still support 132845 (=4353082796/2^15) always runnable, which should be acceptible.
>
> load_avg = load_sum / 47742 = load.weight (which is unsigned long), so it should be
> perfectly safe for both entity (even with arbitrary user group share) and cfs_rq on
> both 32bit and 64bit. Originally, we saved this division, but have to get it back
> because of the overflow issue on 32bit (actually load average itself is safe from
> overflow, but the rest of the code referencing it always uses long, such as cpu_load,
> etc., which prevents it from saving).
>
> - Fix overflow issue both for entity and cfs_rq on both 32bit and 64bit.
> - Track all entities (both task and group entity) due to group entity's clock issue.
> This actually improves code simplicity.
> - Make a copy of cfs_rq sched_avg's last_update_time, to read an intact 64bit
> variable on 32bit machine when in data race (hope I did it right).
> - Minor fixes and code improvement.
>
> v2 changes:
>
> Thanks to PeterZ and Ben for their help in fixing the issues and improving
> the quality, and Fengguang and his 0Day in finding compile errors in different
> configurations for version 2.
>
> - Batch update the tg->load_avg, making sure it is up-to-date before update_cfs_shares
> - Remove migrating task from the old CPU/cfs_rq, and do so with atomic operations
>
> Yuyang Du (4):
> sched: Remove rq's runnable avg
> sched: Rewrite runnable load and utilization average tracking
> sched: Init cfs_rq's sched_entity load average
> sched: Remove task and group entity load when they are dead
>
> include/linux/sched.h | 40 ++-
> kernel/sched/core.c | 5 +-
> kernel/sched/debug.c | 42 +---
> kernel/sched/fair.c | 668 +++++++++++++++++---------------------------------
> kernel/sched/sched.h | 32 +--
> 5 files changed, 261 insertions(+), 526 deletions(-)
>
> --
> 2.1.3
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v8 0/4] sched: Rewrite runnable load and utilization average tracking
[not found] <1432518587-114210-1-git-send-email-yuyang.du@intel.com>
[not found] ` <1432518587-114210-3-git-send-email-yuyang.du@intel.com>
2015-06-02 0:25 ` [PATCH v8 0/4] " Yuyang Du
@ 2015-06-09 1:21 ` Yuyang Du
2015-06-15 10:38 ` Boqun Feng
2 siblings, 1 reply; 13+ messages in thread
From: Yuyang Du @ 2015-06-09 1:21 UTC (permalink / raw)
To: mingo, peterz, linux-kernel
Cc: pjt, bsegall, morten.rasmussen, vincent.guittot, dietmar.eggemann,
arjan.van.de.ven, len.brown, rafael.j.wysocki, fengguang.wu
Ping ...
Plus some data tested by LKP:
To name a few host configurations:
host: brickland3
model: Brickland Ivy Bridge-EX
nr_cpu: 120
memory: 512G
host: lkp-a03
model: Atom
memory: 8G
host: grantley
model: Grantley Haswell-EP
memory: 32G
host: ivb43
model: Ivytown Ivy Bridge-EP
nr_cpu: 48
memory: 64G
base 4c59e142fee20a57617cff2250 testbox/testcase/testparams
---------------- -------------------------- ---------------------------
%stddev %change %stddev
\ | \
1620 ± 0% -12.3% 1421 ± 0% aim7/performance-100-fork_test/lkp-a03
232 ± 0% +0.2% 233 ± 0% aim7/performance-20-sieve/lkp-a03
3409 ± 0% +0.0% 3410 ± 0% aim7/performance-200-array_rtns/lkp-a03
6784 ± 0% +1.1% 6860 ± 1% aim7/performance-200-dir_rtns_1/lkp-a03
26745 ± 2% +33.6% 35721 ± 0% aim7/performance-2000-fork_test/brickland3
41873 ± 0% +0.4% 42027 ± 0% aim7/performance-3000-brk_test/brickland3
44047 ± 30% -45.2% 24135 ± 18% aim7/performance-3000-disk_cp/brickland3
18414 ± 16% +90.5% 35078 ± 0% aim7/performance-3000-disk_rd/brickland3
71783 ± 2% +11.7% 80188 ± 0% aim7/performance-3000-sieve/brickland3
10132 ± 0% +0.0% 10136 ± 0% aim7/performance-600-add_float/lkp-a03
13005 ± 0% -1.3% 12842 ± 0% aim7/performance-600-creat-clo/lkp-a03
18956 ± 0% -0.2% 18924 ± 0% aim7/performance-600-disk_cp/lkp-a03
12324 ± 0% +0.4% 12375 ± 0% aim7/performance-600-mem_rtns_1/lkp-a03
661018 ± 3% +9.6% 724296 ± 2% aim7/performance-8000-disk_src/brickland3
1165368 ± 16% +19.0% 1386957 ± 40% aim7/performance-8000-disk_wrt/brickland3
1178357 ± 0% -1.7% 1157892 ± 0% aim7/performance-8000-mem_rtns_1/brickland3
882191 ± 0% +27.2% 1122167 ± 0% aim7/performance-8000-misc_rtns_1/brickland3
1220753 ± 1% -1.0% 1208609 ± 1% aim7/performance-8000-sort_rtns_1/brickland3
792481 ± 0% -0.1% 791469 ± 0% aim7/performance-8000-string_rtns/brickland3
43506 +4.3% 45368 GEO-MEAN aim7.jobs-per-min
base 4c59e142fee20a57617cff2250
---------------- --------------------------
79.57 ± 1% -2.1% 77.94 ± 1% kbuild/performance-200%/grantley
87.34 ± 0% +5.3% 91.94 ± 0% kbuild/performance-50%/grantley
89.57 ± 0% +1.6% 90.97 ± 0% kbuild/powersave-200%/grantley
98.61 ± 0% +6.9% 105.42 ± 0% kbuild/powersave-50%/grantley
88.51 +2.9% 91.04 GEO-MEAN kbuild.time.elapsed_time
base 4c59e142fee20a57617cff2250
---------------- --------------------------
12266 ± 0% +0.3% 12305 ± 0% ebizzy/performance-200%-100x-10s/lkp-nex04
12265 +0.3% 12304 GEO-MEAN ebizzy.throughput
base 4c59e142fee20a57617cff2250
---------------- --------------------------
10414 ± 3% +0.7% 10484 ± 2% fsmark/performance-1x-1t-1BRD_32G-ext4-4K-4G-fsyncBeforeClose-1fpd/ivb43
1571 ± 0% +1.7% 1599 ± 1% fsmark/performance-1x-1t-1BRD_32G-ext4-nfsv4-4K-4G-fsyncBeforeClose-1fpd/ivb43
5294 ± 0% -0.1% 5289 ± 0% fsmark/performance-1x-1t-1BRD_32G-xfs-4K-4G-fsyncBeforeClose-1fpd/ivb43
1401 ± 0% +2.6% 1439 ± 0% fsmark/performance-1x-1t-1BRD_32G-xfs-nfsv4-4K-4G-fsyncBeforeClose-1fpd/ivb43
3320 +1.2% 3361 GEO-MEAN fsmark.files_per_sec
base 4c59e142fee20a57617cff2250
---------------- --------------------------
4550 ± 0% +0.5% 4570 ± 0% ftq/performance-100%-20x-100000ss/lkp-nex06
4550 +0.5% 4570 GEO-MEAN ftq.counts
base 4c59e142fee20a57617cff2250
---------------- --------------------------
0.61 ± 0% +0.1% 0.61 ± 0% ftq/performance-100%-20x-100000ss/lkp-nex06
0.61 +0.1% 0.61 GEO-MEAN ftq.stddev
base 4c59e142fee20a57617cff2250
---------------- --------------------------
13062333 ± 0% +0.4% 13110392 ± 0% fwq/performance-disable_mtrr_trim-100%-20x-100000ss/loslunas
13062333 +0.4% 13110391 GEO-MEAN fwq.counts
base 4c59e142fee20a57617cff2250
---------------- --------------------------
0.08 ± 13% -22.9% 0.06 ± 1% fwq/performance-disable_mtrr_trim-100%-20x-100000ss/loslunas
0.08 -22.9% 0.06 GEO-MEAN fwq.stddev
base 4c59e142fee20a57617cff2250
---------------- --------------------------
151157 ± 7% +47.3% 222713 ± 1% hackbench/1600%-process-pipe/lkp-sb03
60491 ± 5% +11.8% 67652 ± 3% hackbench/1600%-process-pipe/lkp-st02
149667 ± 3% +10.8% 165778 ± 1% hackbench/1600%-process-pipe/lkp-ws02
53252 ± 2% +12.2% 59761 ± 0% hackbench/1600%-process-pipe/nhm-white
131798 ± 0% +1.5% 133733 ± 0% hackbench/1600%-process-socket/lkp-sb03
26157 ± 0% -3.1% 25359 ± 0% hackbench/1600%-process-socket/lkp-st02
33566 ± 0% -0.8% 33285 ± 0% hackbench/1600%-process-socket/nhm-white
13211 ± 14% +17.9% 15582 ± 22% hackbench/1600%-process-socket/vm-vp-2G
156136 ± 3% +15.5% 180382 ± 4% hackbench/1600%-threads-pipe/lkp-sb03
50713 ± 3% +16.2% 58907 ± 3% hackbench/1600%-threads-pipe/lkp-st02
141579 ± 3% -11.1% 125831 ± 3% hackbench/1600%-threads-pipe/lkp-ws02
50283 ± 0% -0.1% 50218 ± 4% hackbench/1600%-threads-pipe/nhm-white
16756 ± 35% +82.8% 30626 ± 23% hackbench/1600%-threads-pipe/vm-vp-2G
141127 ± 0% -0.7% 140128 ± 0% hackbench/1600%-threads-socket/lkp-sb03
25519 ± 0% -1.7% 25091 ± 0% hackbench/1600%-threads-socket/lkp-st02
95356 ± 1% +2.7% 97902 ± 0% hackbench/1600%-threads-socket/lkp-ws02
45342 ± 1% +22.9% 55728 ± 2% hackbench/50%-process-pipe/lkp-sb03
37594 ± 2% +20.3% 45227 ± 1% hackbench/50%-process-socket/lkp-sb03
41087 ± 2% +28.3% 52698 ± 3% hackbench/50%-threads-pipe/lkp-sb03
32685 ± 2% +29.3% 42266 ± 0% hackbench/50%-threads-socket/lkp-sb03
16722 ± 5% +6.5% 17809 ± 3% hackbench/performance-1600%-process-pipe/avoton3
36409 ± 2% +6.1% 38631 ± 1% hackbench/performance-1600%-process-pipe/bay
210022 ± 21% +8.5% 227837 ± 9% hackbench/performance-1600%-process-pipe/brickland3
179759 ± 1% +20.9% 217284 ± 3% hackbench/performance-1600%-process-pipe/grantley
200679 ± 6% +9.1% 218923 ± 4% hackbench/performance-1600%-process-pipe/ivb41
198924 ± 2% +11.4% 221634 ± 5% hackbench/performance-1600%-process-pipe/ivb42
90326 ± 4% +81.4% 163853 ± 0% hackbench/performance-1600%-process-pipe/lituya
3841 ± 2% +0.3% 3853 ± 1% hackbench/performance-1600%-process-pipe/lkp-a03
3878 ± 1% -1.7% 3814 ± 2% hackbench/performance-1600%-process-pipe/lkp-a04
3756 ± 2% +2.0% 3831 ± 2% hackbench/performance-1600%-process-pipe/lkp-a06
17302 ± 11% +33.1% 23026 ± 4% hackbench/performance-1600%-process-pipe/lkp-bdw02
11552 ± 4% -3.9% 11099 ± 5% hackbench/performance-1600%-process-pipe/lkp-bdw03
15863 +3.2% 16373 ± 3% hackbench/performance-1600%-process-pipe/lkp-bsw01
238403 ± 2% +6.5% 254009 ± 1% hackbench/performance-1600%-process-pipe/lkp-hsw01
290714 ± 23% -16.3% 243224 ± 22% hackbench/performance-1600%-process-pipe/lkp-hsx02
95403 ± 1% +33.7% 127540 ± 3% hackbench/performance-1600%-process-pipe/lkp-ne04
217280 ± 1% +5.2% 228664 ± 3% hackbench/performance-1600%-process-pipe/lkp-nex04
161857 ± 9% +65.7% 268277 ± 4% hackbench/performance-1600%-process-pipe/lkp-sbx04
8584 ± 6% -14.8% 7316 ± 4% hackbench/performance-1600%-process-pipe/lkp-t410
61053 ± 2% +13.2% 69135 ± 2% hackbench/performance-1600%-process-pipe/nhm4
94209 ± 0% +18.3% 111445 ± 1% hackbench/performance-1600%-process-pipe/wsm
9275 ± 2% -2.7% 9025 ± 1% hackbench/performance-1600%-process-socket/avoton3
17454 ± 0% -3.6% 16829 ± 0% hackbench/performance-1600%-process-socket/bay
186603 ± 0% +0.1% 186712 ± 0% hackbench/performance-1600%-process-socket/grantley
141698 ± 0% -0.0% 141685 hackbench/performance-1600%-process-socket/ivb41
141796 ± 0% -1.0% 140383 ± 0% hackbench/performance-1600%-process-socket/ivb42
91118 ± 0% -0.0% 91080 ± 0% hackbench/performance-1600%-process-socket/lituya
2682 ± 0% -3.5% 2589 ± 1% hackbench/performance-1600%-process-socket/lkp-a03
2689 ± 1% -3.2% 2603 ± 1% hackbench/performance-1600%-process-socket/lkp-a04
2677 ± 2% -3.4% 2585 ± 1% hackbench/performance-1600%-process-socket/lkp-a06
17793 ± 0% -1.9% 17454 ± 0% hackbench/performance-1600%-process-socket/lkp-bdw01
17810 ± 0% -2.3% 17392 ± 0% hackbench/performance-1600%-process-socket/lkp-bdw02
10438 ± 2% -6.6% 9753 ± 3% hackbench/performance-1600%-process-socket/lkp-bdw03
71835 ± 0% -1.4% 70825 ± 0% hackbench/performance-1600%-process-socket/lkp-ne04
126804 ± 0% +2.3% 129735 ± 0% hackbench/performance-1600%-process-socket/lkp-nex04
6038 ± 1% -7.6% 5579 ± 1% hackbench/performance-1600%-process-socket/lkp-t410
193514 ± 1% -0.4% 192644 ± 1% hackbench/performance-1600%-process-socket/lkp-wsx02
38781 ± 0% -2.7% 37729 ± 0% hackbench/performance-1600%-process-socket/nhm4
61930 ± 0% -2.8% 60175 ± 0% hackbench/performance-1600%-process-socket/wsm
16234 ± 4% +1.3% 16451 ± 3% hackbench/performance-1600%-threads-pipe/avoton3
33783 ± 1% +4.3% 35236 ± 0% hackbench/performance-1600%-threads-pipe/bay
87784 ± 4% +19.4% 104776 ± 5% hackbench/performance-1600%-threads-pipe/lituya
3984 ± 3% +0.3% 3997 ± 1% hackbench/performance-1600%-threads-pipe/lkp-a03
3971 ± 2% -2.2% 3882 ± 1% hackbench/performance-1600%-threads-pipe/lkp-a04
3965 ± 2% -2.0% 3885 ± 1% hackbench/performance-1600%-threads-pipe/lkp-a06
16813 ± 4% +10.0% 18489 ± 5% hackbench/performance-1600%-threads-pipe/lkp-bdw01
14705 ± 7% +23.1% 18108 ± 4% hackbench/performance-1600%-threads-pipe/lkp-bdw02
10138 ± 6% +4.4% 10584 ± 5% hackbench/performance-1600%-threads-pipe/lkp-bdw03
296586 ± 4% +44.8% 429530 ± 2% hackbench/performance-1600%-threads-pipe/lkp-hsx03
89740 ± 4% -3.0% 87023 ± 1% hackbench/performance-1600%-threads-pipe/lkp-ne04
7199 ± 2% -2.3% 7034 ± 5% hackbench/performance-1600%-threads-pipe/lkp-t410
160871 ± 3% +40.7% 226283 ± 3% hackbench/performance-1600%-threads-pipe/lkp-wsx02
59435 ± 2% +1.4% 60289 ± 2% hackbench/performance-1600%-threads-pipe/nhm4
88130 ± 1% +2.6% 90453 ± 2% hackbench/performance-1600%-threads-pipe/wsm
8511 ± 3% -3.7% 8198 ± 1% hackbench/performance-1600%-threads-socket/avoton3
150335 ± 0% -2.0% 147334 ± 0% hackbench/performance-1600%-threads-socket/ivb42
88587 ± 0% -0.0% 88581 ± 0% hackbench/performance-1600%-threads-socket/lituya
2545 ± 0% -9.0% 2316 ± 1% hackbench/performance-1600%-threads-socket/lkp-a03
2576 ± 2% -8.1% 2367 ± 1% hackbench/performance-1600%-threads-socket/lkp-a04
2561 ± 2% -8.9% 2333 ± 0% hackbench/performance-1600%-threads-socket/lkp-a06
16940 ± 0% -2.0% 16594 ± 0% hackbench/performance-1600%-threads-socket/lkp-bdw01
16909 ± 0% -2.3% 16523 ± 0% hackbench/performance-1600%-threads-socket/lkp-bdw02
6036 ± 41% +10.9% 6693 ± 36% hackbench/performance-1600%-threads-socket/lkp-bdw03
72247 ± 1% -1.9% 70848 ± 0% hackbench/performance-1600%-threads-socket/lkp-ne04
130287 ± 2% +1.3% 131979 ± 0% hackbench/performance-1600%-threads-socket/lkp-nex04
5284 ± 2% -11.4% 4684 ± 1% hackbench/performance-1600%-threads-socket/lkp-t410
182493 ± 2% +4.4% 190486 ± 1% hackbench/performance-1600%-threads-socket/lkp-wsx02
34589 ± 0% -2.7% 33639 ± 0% hackbench/performance-1600%-threads-socket/nhm4
62138 ± 0% -2.5% 60563 ± 0% hackbench/performance-1600%-threads-socket/wsm
25854 ± 2% +11.2% 28760 ± 2% hackbench/performance-50%-process-pipe/brickland3
48893 ± 2% +17.2% 57280 ± 3% hackbench/performance-50%-process-pipe/grantley
52874 ± 3% +30.2% 68845 ± 3% hackbench/performance-50%-process-pipe/ivb42
32505 ± 1% +14.1% 37079 ± 1% hackbench/performance-50%-process-pipe/lituya
8579 ± 2% -1.8% 8428 ± 0% hackbench/performance-50%-process-pipe/lkp-bdw01
8635 ± 1% -2.0% 8465 ± 0% hackbench/performance-50%-process-pipe/lkp-bdw02
6520 ± 1% -15.3% 5523 ± 17% hackbench/performance-50%-process-pipe/lkp-bdw03
54195 ± 1% +30.8% 70864 ± 0% hackbench/performance-50%-process-pipe/lkp-hsw01
31152 ± 1% +10.7% 34482 ± 2% hackbench/performance-50%-process-pipe/lkp-hsx03
24170 ± 4% +14.4% 27645 ± 4% hackbench/performance-50%-process-socket/brickland3
37786 ± 1% +31.0% 49489 ± 0% hackbench/performance-50%-process-socket/grantley
43874 ± 1% +33.5% 58567 ± 2% hackbench/performance-50%-process-socket/ivb42
23387 ± 0% +16.3% 27202 ± 0% hackbench/performance-50%-process-socket/lituya
5657 ± 0% +1.6% 5747 ± 0% hackbench/performance-50%-process-socket/lkp-bdw01
5650 ± 0% +2.0% 5762 ± 0% hackbench/performance-50%-process-socket/lkp-bdw02
4379 ± 1% +3.0% 4511 ± 1% hackbench/performance-50%-process-socket/lkp-bdw03
41463 ± 4% +37.7% 57110 ± 1% hackbench/performance-50%-process-socket/lkp-hsw01
29333 ± 3% +17.6% 34494 ± 1% hackbench/performance-50%-process-socket/lkp-hsx02
27757 ± 0% +28.4% 35635 ± 1% hackbench/performance-50%-process-socket/lkp-hsx03
25439 ± 4% +26.9% 32274 ± 7% hackbench/performance-50%-process-socket/lkp-sbx04
25117 ± 3% +16.9% 29363 ± 3% hackbench/performance-50%-threads-pipe/brickland3
48543 ± 1% +8.2% 52520 ± 3% hackbench/performance-50%-threads-pipe/grantley
48614 ± 4% +32.1% 64240 ± 4% hackbench/performance-50%-threads-pipe/ivb42
29186 ± 1% +22.8% 35840 ± 1% hackbench/performance-50%-threads-pipe/lituya
8037 ± 2% +0.5% 8074 ± 0% hackbench/performance-50%-threads-pipe/lkp-bdw02
6233 ± 1% -7.3% 5776 ± 1% hackbench/performance-50%-threads-pipe/lkp-bdw03
51951 ± 2% +25.3% 65118 ± 3% hackbench/performance-50%-threads-pipe/lkp-hsw01
32037 ± 1% +22.3% 39191 ± 4% hackbench/performance-50%-threads-pipe/lkp-hsx02
34492 ± 4% +6.2% 36618 ± 3% hackbench/performance-50%-threads-pipe/lkp-sbx04
23770 ± 2% +22.3% 29071 ± 5% hackbench/performance-50%-threads-socket/brickland3
35592 ± 1% +24.5% 44321 ± 4% hackbench/performance-50%-threads-socket/grantley
38872 ± 2% +36.3% 52965 ± 3% hackbench/performance-50%-threads-socket/ivb42
21302 ± 1% +25.5% 26743 ± 2% hackbench/performance-50%-threads-socket/lituya
5380 ± 0% +4.0% 5595 ± 0% hackbench/performance-50%-threads-socket/lkp-bdw01
5348 ± 0% +4.5% 5586 ± 0% hackbench/performance-50%-threads-socket/lkp-bdw02
4198 ± 0% +5.1% 4413 ± 1% hackbench/performance-50%-threads-socket/lkp-bdw03
25763 ± 4% +14.3% 29437 ± 2% hackbench/performance-50%-threads-socket/lkp-sbx04
7897 ± 5% -3.6% 7614 ± 1% hackbench/performance-disable_mtrr_trim-1600%-process-pipe/loslunas
231162 ± 3% -5.6% 218130 ± 1% hackbench/powersave-1600%-process-pipe/grantley
90577 ± 3% +78.7% 161906 ± 0% hackbench/powersave-1600%-process-pipe/lituya
188325 ± 0% -2.4% 183750 ± 4% hackbench/powersave-1600%-process-socket/grantley
90775 ± 0% +0.2% 90927 ± 0% hackbench/powersave-1600%-process-socket/lituya
226036 ± 3% +5.9% 239462 ± 0% hackbench/powersave-1600%-threads-pipe/grantley
86586 ± 3% +23.6% 107013 ± 4% hackbench/powersave-1600%-threads-pipe/lituya
88852 ± 0% -0.6% 88356 ± 0% hackbench/powersave-1600%-threads-socket/lituya
50247 ± 3% +16.4% 58483 ± 3% hackbench/powersave-50%-process-pipe/grantley
32052 ± 2% +16.7% 37400 ± 2% hackbench/powersave-50%-process-pipe/lituya
38122 ± 3% +32.0% 50304 ± 1% hackbench/powersave-50%-process-socket/grantley
23135 ± 0% +17.1% 27099 ± 1% hackbench/powersave-50%-process-socket/lituya
48163 ± 6% +13.0% 54417 ± 2% hackbench/powersave-50%-threads-pipe/grantley
29762 ± 2% +19.4% 35533 ± 2% hackbench/powersave-50%-threads-pipe/lituya
36361 ± 2% +27.9% 46518 ± 1% hackbench/powersave-50%-threads-socket/grantley
21857 ± 2% +21.5% 26554 ± 0% hackbench/powersave-50%-threads-socket/lituya
31742 +9.2% 34675 GEO-MEAN hackbench.throughput
base 4c59e142fee20a57617cff2250
---------------- --------------------------
437 ± 0% +0.0% 437 ± 0% linpack/performance/ivb42
437 +0.0% 437 GEO-MEAN linpack.GFlops
base 4c59e142fee20a57617cff2250
---------------- --------------------------
14004 ± 35% +190.7% 40718 ± 44% nepim/300s-100%-tcp/lkp-hsw01
64809 ± 7% -20.0% 51830 ± 30% nepim/300s-25%-tcp/lkp-hsw01
30127 +52.5% 45939 GEO-MEAN nepim.tcp.avg.kbps_out
base 4c59e142fee20a57617cff2250
---------------- --------------------------
8418 ± 26% +77.0% 14902 ± 14% nepim/300s-100%-tcp/lkp-hsw01
62956 ± 0% +0.2% 63079 ± 6% nepim/300s-25%-tcp/lkp-hsw01
23021 +33.2% 30659 GEO-MEAN nepim.tcp.avg.kbps_in
base 4c59e142fee20a57617cff2250
---------------- --------------------------
437326 ± 0% +0.3% 438441 ± 2% pft/performance-20x/t100
1250886 ± 1% +4.1% 1302202 ± 0% pft/performance-disable_mtrr_trim-20x/loslunas
739625 +2.2% 755605 GEO-MEAN pft.faults_per_sec_per_cpu
base 4c59e142fee20a57617cff2250
---------------- --------------------------
76748840 ± 0% -0.4% 76421835 ± 0% pigz/performance-100%-128K/xps2
78299150 ± 0% -0.1% 78239175 ± 0% pigz/performance-100%-512K/xps2
77520119 -0.3% 77325166 GEO-MEAN pigz.throughput
base 4c59e142fee20a57617cff2250
---------------- --------------------------
59 ± 0% -0.8% 59 ± 1% tlbflush/performance-disable_mtrr_trim-200%-32x-512/loslunas
59 -0.8% 59 GEO-MEAN tlbflush.mem_acc_cost_ns_time
base 4c59e142fee20a57617cff2250
---------------- --------------------------
1.069e+08 ± 0% +1.2% 1.082e+08 ± 0% vm-scalability/performance-300s-128G-truncate/lkp-hsx03
3998112 ± 0% +1.9% 4073056 ± 0% vm-scalability/performance-300s-16G-shm-pread-rand-mt/lkp-hsx03
7402406 ± 0% -2.8% 7192847 ± 0% vm-scalability/performance-300s-16G-shm-pread-rand/lkp-hsx03
4034232 ± 0% +0.7% 4060991 ± 0% vm-scalability/performance-300s-16G-shm-xread-rand-mt/lkp-hsx03
7386450 ± 0% -2.0% 7239101 ± 0% vm-scalability/performance-300s-16G-shm-xread-rand/lkp-hsx03
7353904 ± 0% -22.7% 5686546 ± 2% vm-scalability/performance-300s-1T-msync-mt/lkp-hsx03
3548358 ± 6% +17.2% 4158294 ± 1% vm-scalability/performance-300s-1T-msync/lkp-hsx03
63746553 ± 1% -30.6% 44236790 ± 1% vm-scalability/performance-300s-1T-remap/lkp-hsx03
8871391 ± 8% -3.2% 8586294 ± 1% vm-scalability/performance-300s-256G-lru-shm-rand/lkp-hsx03
66418665 ± 1% +0.6% 66786118 ± 0% vm-scalability/performance-300s-2T-shm-pread-seq/lkp-hsx03
22800096 ± 0% +4.7% 23874726 ± 0% vm-scalability/performance-300s-2T-shm-xread-seq-mt/lkp-hsx03
65736378 ± 0% +1.5% 66738487 ± 0% vm-scalability/performance-300s-2T-shm-xread-seq/lkp-hsx03
7284668 ± 0% -3.3% 7047820 ± 0% vm-scalability/performance-300s-512G-anon-cow-rand-mt/lkp-hsx03
7031802 ± 0% -1.1% 6957068 ± 0% vm-scalability/performance-300s-512G-anon-cow-rand/lkp-hsx03
7753328 ± 0% -36.7% 4911510 ± 0% vm-scalability/performance-300s-512G-anon-w-rand-mt/lkp-hsx03
8087283 ± 0% -7.7% 7462337 ± 0% vm-scalability/performance-300s-512G-anon-w-rand/lkp-hsx03
7421372 ± 0% -3.9% 7133772 ± 0% vm-scalability/performance-300s-512G-anon-wx-rand-mt/lkp-hsx03
1.43e+08 ± 1% -37.7% 89152611 ± 0% vm-scalability/performance-300s-8T-anon-cow-seq-mt/lkp-hsx03
56124630 ± 0% +0.5% 56400980 ± 0% vm-scalability/performance-300s-8T-anon-cow-seq/lkp-hsx03
77349891 ± 0% -83.0% 13113183 ± 0% vm-scalability/performance-300s-8T-anon-w-seq-mt/lkp-hsx03
79457514 ± 0% +15.0% 91359278 ± 0% vm-scalability/performance-300s-8T-anon-w-seq/lkp-hsx03
2.082e+08 ± 0% -42.4% 1.199e+08 ± 0% vm-scalability/performance-300s-8T-anon-wx-seq-mt/lkp-hsx03
28935505 ± 0% -0.5% 28795862 ± 0% vm-scalability/performance-300s-anon-r-rand-mt/lkp-hsx03
29152977 ± 0% -0.4% 29029194 ± 0% vm-scalability/performance-300s-anon-r-rand/lkp-hsx03
3.38e+08 ± 0% +0.0% 3.381e+08 ± 0% vm-scalability/performance-300s-anon-r-seq/lkp-hsx03
1307431 ± 8% -6.2% 1226648 ± 3% vm-scalability/performance-300s-migrate/lkp-hsx03
5576014 ± 0% -2.4% 5440090 ± 0% vm-scalability/performance-300s-mmap-pread-rand/lkp-hsx03
66497365 ± 7% -18.7% 54048662 ± 3% vm-scalability/performance-300s-mmap-pread-seq-mt/lkp-hsx03
5670638 ± 0% -5.9% 5336539 ± 1% vm-scalability/performance-300s-mmap-xread-rand-mt/lkp-hsx03
579579 ± 0% +58.0% 915838 ± 0% vm-scalability/performance-300s-small-allocs-mt/lkp-hsx03
13499657 ± 0% +62.0% 21873828 ± 0% vm-scalability/performance-300s-small-allocs/lkp-hsx03
17221455 -9.6% 15561536 GEO-MEAN vm-scalability.throughput
base 4c59e142fee20a57617cff2250
---------------- --------------------------
349065 ± 0% +0.1% 349410 ± 0% will-it-scale/performance-page_fault1/brickland1
1160020 ± 0% +1.1% 1172370 ± 0% will-it-scale/performance-pread1/brickland1
192136 ± 0% -0.2% 191687 ± 1% will-it-scale/performance-pwrite3/brickland1
2285829 ± 0% +0.8% 2303678 ± 0% will-it-scale/performance-sched_yield/brickland1
614072 ± 0% +0.3% 616197 ± 0% will-it-scale/performance-write1/brickland1
681030 ± 0% +0.8% 686390 ± 0% will-it-scale/performance-writeseek1/brickland1
9979 ± 0% +1.0% 10076 ± 0% will-it-scale/powersave-context_switch1/brickland1
507123 ± 0% +1.7% 515533 ± 0% will-it-scale/powersave-eventfd1/brickland1
423596 ± 0% +0.8% 427012 ± 0% will-it-scale/powersave-lock1/brickland1
150695 ± 0% -0.6% 149846 ± 0% will-it-scale/powersave-open1/brickland1
246364 ± 0% +0.2% 246894 ± 0% will-it-scale/powersave-page_fault3/brickland1
486939 ± 0% +0.6% 489748 ± 0% will-it-scale/powersave-pread1/brickland1
341946 ± 0% +0.5% 343542 ± 0% will-it-scale/powersave-read1/brickland1
345125 +0.5% 346970 GEO-MEAN will-it-scale.per_process_ops
base 4c59e142fee20a57617cff2250
---------------- --------------------------
252648 ± 0% -0.5% 251385 ± 0% will-it-scale/performance-page_fault1/brickland1
992444 ± 0% -1.0% 982934 ± 0% will-it-scale/performance-pread1/brickland1
179275 ± 0% -1.3% 176938 ± 0% will-it-scale/performance-pwrite3/brickland1
2292824 ± 0% +1.2% 2319663 ± 0% will-it-scale/performance-sched_yield/brickland1
528243 ± 0% -2.2% 516867 ± 0% will-it-scale/performance-write1/brickland1
520857 ± 0% -0.1% 520493 ± 0% will-it-scale/performance-writeseek1/brickland1
9838 ± 0% +0.7% 9908 ± 0% will-it-scale/powersave-context_switch1/brickland1
416649 ± 0% +0.6% 419258 ± 0% will-it-scale/powersave-eventfd1/brickland1
71754 ± 0% +0.3% 71959 ± 0% will-it-scale/powersave-lock1/brickland1
27910 ± 0% -3.1% 27047 ± 1% will-it-scale/powersave-open1/brickland1
63691 ± 0% +0.1% 63781 ± 0% will-it-scale/powersave-page_fault3/brickland1
432771 ± 0% -1.5% 426193 ± 0% will-it-scale/powersave-pread1/brickland1
294415 ± 0% +0.5% 295995 ± 0% will-it-scale/powersave-read1/brickland1
213277 -0.5% 212255 GEO-MEAN will-it-scale.per_thread_ops
base 4c59e142fee20a57617cff2250
---------------- --------------------------
0.15 ± 1% +0.7% 0.15 ± 0% will-it-scale/performance-page_fault1/brickland1
0.28 ± 0% -0.0% 0.28 ± 0% will-it-scale/performance-pread1/brickland1
0.00 ± 0% +2.5% 0.00 ± 3% will-it-scale/performance-pwrite3/brickland1
0.29 ± 0% +2.4% 0.29 ± 0% will-it-scale/performance-sched_yield/brickland1
0.29 ± 0% -1.0% 0.29 ± 0% will-it-scale/performance-write1/brickland1
0.30 ± 1% +1.5% 0.30 ± 0% will-it-scale/performance-writeseek1/brickland1
0.10 ± 0% +4.0% 0.11 ± 1% will-it-scale/powersave-context_switch1/brickland1
0.45 ± 1% +2.9% 0.46 ± 0% will-it-scale/powersave-eventfd1/brickland1
0.43 ± 0% +2.0% 0.43 ± 0% will-it-scale/powersave-lock1/brickland1
0.39 ± 0% +6.5% 0.42 ± 0% will-it-scale/powersave-open1/brickland1
0.54 ± 0% +0.1% 0.54 ± 0% will-it-scale/powersave-page_fault3/brickland1
0.43 ± 0% -1.3% 0.42 ± 0% will-it-scale/powersave-pread1/brickland1
0.42 ± 1% +0.7% 0.42 ± 1% will-it-scale/powersave-read1/brickland1
0.21 +1.6% 0.21 GEO-MEAN will-it-scale.scalability
base 4c59e142fee20a57617cff2250
---------------- --------------------------
740.44 ± 0% -23.6% 565.47 ± 0% aim7/performance-2000-fork_test/brickland3
911.93 ± 0% +0.1% 913.15 ± 0% aim7/performance-3000-brk_test/brickland3
665.34 ± 3% -0.3% 663.11 ± 1% aim7/performance-3000-disk_cp/brickland3
650.55 ± 2% -4.9% 618.41 ± 0% aim7/performance-3000-disk_rd/brickland3
1073.75 ± 0% +1.7% 1092.35 ± 0% aim7/performance-3000-sieve/brickland3
864.93 ± 0% -12.9% 753.22 ± 0% aim7/performance-8000-disk_src/brickland3
699.12 ± 9% +2.7% 718.34 ± 9% aim7/performance-8000-disk_wrt/brickland3
989.51 ± 1% -2.9% 960.95 ± 0% aim7/performance-8000-mem_rtns_1/brickland3
519.12 ± 0% +7.9% 559.94 ± 0% aim7/performance-8000-misc_rtns_1/brickland3
963.28 ± 0% -1.1% 952.83 ± 1% aim7/performance-8000-sort_rtns_1/brickland3
945.29 ± 0% -1.3% 932.87 ± 0% aim7/performance-8000-string_rtns/brickland3
59.34 ± 0% -0.1% 59.28 ± 0% hackbench/performance-1600%-process-pipe/avoton3
912.63 ± 2% -1.9% 895.12 ± 2% hackbench/performance-1600%-process-pipe/brickland3
364.93 ± 0% +0.3% 365.93 ± 0% hackbench/performance-1600%-process-pipe/grantley
59.77 ± 0% +0.5% 60.08 ± 0% hackbench/performance-1600%-process-socket/avoton3
375.80 ± 0% -0.9% 372.35 ± 0% hackbench/performance-1600%-process-socket/grantley
59.01 ± 0% +1.3% 59.77 ± 2% hackbench/performance-1600%-threads-pipe/avoton3
59.73 ± 0% -0.1% 59.69 ± 0% hackbench/performance-1600%-threads-socket/avoton3
358.04 ± 0% -0.1% 357.80 ± 0% hackbench/performance-50%-process-pipe/grantley
364.00 ± 0% +0.6% 366.35 ± 0% hackbench/performance-50%-process-socket/grantley
358.24 ± 0% +0.1% 358.50 ± 0% hackbench/performance-50%-threads-pipe/grantley
364.29 ± 0% +0.5% 366.25 ± 0% hackbench/performance-50%-threads-socket/grantley
363.82 ± 0% -0.8% 360.83 ± 1% hackbench/powersave-1600%-process-pipe/grantley
367.31 ± 1% -1.3% 362.50 ± 1% hackbench/powersave-1600%-process-socket/grantley
380.71 ± 0% -0.6% 378.42 ± 0% hackbench/powersave-1600%-threads-pipe/grantley
357.92 ± 0% +0.1% 358.33 ± 0% hackbench/powersave-50%-process-pipe/grantley
363.58 ± 0% +0.7% 366.27 ± 0% hackbench/powersave-50%-process-socket/grantley
358.19 ± 0% -0.1% 358.00 ± 0% hackbench/powersave-50%-threads-pipe/grantley
364.18 ± 0% +0.5% 365.88 ± 0% hackbench/powersave-50%-threads-socket/grantley
328.19 ± 0% +0.7% 330.62 ± 0% kbuild/performance-200%/grantley
321.69 ± 0% -2.1% 314.78 ± 0% kbuild/performance-50%/grantley
314.89 ± 0% -0.4% 313.63 ± 0% kbuild/powersave-200%/grantley
306.44 ± 0% -2.6% 298.62 ± 0% kbuild/powersave-50%/grantley
384.93 -1.4% 379.71 GEO-MEAN pmeter.Average_Active_Power
base 4c59e142fee20a57617cff2250
---------------- --------------------------
8355840 ± 0% +0.0% 8355840 ± 0% boot/1/vm-kbuild-yocto-i386
13492224 ± 0% +0.0% 13492224 ± 0% boot/1/vm-kbuild-yocto-ia32
17936384 ± 0% +0.0% 17936384 ± 0% boot/1/vm-kbuild-yocto-ia32
16461824 ± 0% +0.0% 16461824 ± 0% boot/1/vm-kbuild-yocto-ia32
2068480 ± 0% +0.0% 2068480 ± 0% boot/1/vm-kbuild-yocto-ia32
13492224 ± 0% +0.0% 13492224 ± 0% boot/1/vm-kbuild-yocto-x86_64
17936384 ± 0% +0.0% 17936384 ± 0% boot/1/vm-kbuild-yocto-x86_64
1802240 ± 0% +0.0% 1802240 ± 0% boot/1/vm-kbuild-yocto-x86_64
8355840 ± 0% +0.0% 8355840 ± 0% boot/1/vm-vp-quantal-i386
8575991 +0.0% 8575991 GEO-MEAN kernel-size.bss
base 4c59e142fee20a57617cff2250
---------------- --------------------------
3645184 ± 0% -0.0% 3645120 ± 0% boot/1/vm-kbuild-yocto-i386
4087080 ± 0% -0.0% 4087016 ± 0% boot/1/vm-kbuild-yocto-ia32
8292384 ± 0% +0.0% 8292384 ± 0% boot/1/vm-kbuild-yocto-ia32
4809696 ± 0% +0.0% 4809696 ± 0% boot/1/vm-kbuild-yocto-ia32
3183080 ± 0% -0.0% 3183016 ± 0% boot/1/vm-kbuild-yocto-ia32
4087080 ± 0% -0.0% 4087016 ± 0% boot/1/vm-kbuild-yocto-x86_64
8292384 ± 0% +0.0% 8292384 ± 0% boot/1/vm-kbuild-yocto-x86_64
2718584 ± 0% -0.0% 2718520 ± 0% boot/1/vm-kbuild-yocto-x86_64
3645184 ± 0% -0.0% 3645120 ± 0% boot/1/vm-vp-quantal-i386
4413368 -0.0% 4413314 GEO-MEAN kernel-size.data
base 4c59e142fee20a57617cff2250
---------------- --------------------------
9076279 ± 0% -0.0% 9076215 ± 0% boot/1/vm-kbuild-yocto-i386
19555593 ± 0% -0.0% 19555201 ± 0% boot/1/vm-kbuild-yocto-ia32
48493597 ± 0% +0.0% 48493597 ± 0% boot/1/vm-kbuild-yocto-ia32
19839225 ± 0% -0.0% 19838841 ± 0% boot/1/vm-kbuild-yocto-ia32
13488401 ± 0% +0.0% 13488785 ± 0% boot/1/vm-kbuild-yocto-ia32
19555593 ± 0% -0.0% 19555201 ± 0% boot/1/vm-kbuild-yocto-x86_64
48493597 ± 0% +0.0% 48493597 ± 0% boot/1/vm-kbuild-yocto-x86_64
15644016 ± 0% +0.0% 15644208 ± 0% boot/1/vm-kbuild-yocto-x86_64
9076279 ± 0% -0.0% 9076215 ± 0% boot/1/vm-vp-quantal-i386
18916465 -0.0% 18916396 GEO-MEAN kernel-size.text
base 4c59e142fee20a57617cff2250
---------------- --------------------------
23.69 ± 1% -18.2% 19.37 ± 0% aim7/performance-2000-fork_test/brickland3
97.34 ± 0% -0.1% 97.24 ± 0% aim7/performance-3000-brk_test/brickland3
31.50 ± 19% +4.3% 32.87 ± 6% aim7/performance-3000-disk_cp/brickland3
31.31 ± 9% -18.2% 25.61 ± 1% aim7/performance-3000-disk_rd/brickland3
95.45 ± 0% -0.7% 94.81 ± 0% aim7/performance-3000-sieve/brickland3
53.69 ± 1% -32.4% 36.27 ± 0% aim7/performance-8000-disk_src/brickland3
28.60 ± 24% -6.4% 26.76 ± 4% aim7/performance-8000-disk_wrt/brickland3
62.51 ± 3% -7.2% 58.02 ± 1% aim7/performance-8000-mem_rtns_1/brickland3
5.88 ± 1% +6.6% 6.27 ± 0% aim7/performance-8000-misc_rtns_1/brickland3
62.94 ± 2% -6.1% 59.09 ± 6% aim7/performance-8000-sort_rtns_1/brickland3
80.47 ± 0% -7.2% 74.66 ± 1% aim7/performance-8000-string_rtns/brickland3
99.13 ± 0% -1.0% 98.11 ± 0% ebizzy/performance-200%-100x-10s/lkp-nex04
2.31 ± 1% -0.2% 2.31 ± 1% fsmark/performance-1x-1t-1BRD_32G-ext4-4K-4G-fsyncBeforeClose-1fpd/ivb43
2.26 ± 0% +0.9% 2.29 ± 0% fsmark/performance-1x-1t-1BRD_32G-ext4-nfsv4-4K-4G-fsyncBeforeClose-1fpd/ivb43
1.96 ± 0% -1.3% 1.94 ± 1% fsmark/performance-1x-1t-1BRD_32G-xfs-4K-4G-fsyncBeforeClose-1fpd/ivb43
2.45 ± 1% -3.3% 2.37 ± 0% fsmark/performance-1x-1t-1BRD_32G-xfs-nfsv4-4K-4G-fsyncBeforeClose-1fpd/ivb43
56.88 ± 0% +1.2% 57.58 ± 0% ftq/performance-100%-20x-100000ss/lkp-nex06
98.00 ± 0% +1.3% 99.26 ± 0% fwq/performance-disable_mtrr_trim-100%-20x-100000ss/loslunas
94.66 ± 0% -4.6% 90.32 ± 4% hackbench/1600%-process-pipe/lkp-sb03
94.27 ± 0% -1.1% 93.27 ± 0% hackbench/1600%-process-pipe/lkp-ws02
98.34 ± 0% -0.5% 97.83 ± 0% hackbench/1600%-process-pipe/nhm-white
95.18 ± 0% -0.2% 95.02 ± 0% hackbench/1600%-process-socket/lkp-sb03
98.86 ± 0% -0.2% 98.69 ± 0% hackbench/1600%-process-socket/nhm-white
98.20 ± 0% -0.4% 97.76 ± 0% hackbench/1600%-threads-pipe/lkp-sb03
98.10 ± 0% +0.1% 98.17 ± 0% hackbench/1600%-threads-pipe/lkp-ws02
99.26 ± 0% -0.1% 99.21 ± 0% hackbench/1600%-threads-pipe/nhm-white
98.18 ± 0% -0.2% 98.03 ± 0% hackbench/1600%-threads-socket/lkp-sb03
98.45 ± 0% -0.1% 98.33 ± 0% hackbench/1600%-threads-socket/lkp-ws02
99.52 ± 0% -0.3% 99.20 ± 0% hackbench/50%-process-pipe/lkp-sb03
99.06 ± 0% +0.2% 99.22 ± 0% hackbench/50%-process-socket/lkp-sb03
99.52 ± 0% -0.3% 99.27 ± 0% hackbench/50%-threads-pipe/lkp-sb03
99.35 ± 0% -0.1% 99.23 ± 0% hackbench/50%-threads-socket/lkp-sb03
99.07 ± 0% -0.3% 98.76 ± 0% hackbench/performance-1600%-process-pipe/avoton3
84.16 ± 5% -4.9% 80.02 ± 4% hackbench/performance-1600%-process-pipe/brickland3
91.06 ± 0% -2.1% 89.14 ± 0% hackbench/performance-1600%-process-pipe/grantley
91.67 ± 0% -1.1% 90.70 ± 0% hackbench/performance-1600%-process-pipe/ivb41
91.66 ± 0% -1.3% 90.49 ± 0% hackbench/performance-1600%-process-pipe/ivb42
97.84 ± 0% -2.4% 95.46 ± 0% hackbench/performance-1600%-process-pipe/lituya
99.51 ± 0% -0.5% 99.02 ± 0% hackbench/performance-1600%-process-pipe/lkp-bdw02
99.51 ± 0% -0.1% 99.46 ± 0% hackbench/performance-1600%-process-pipe/lkp-bdw03
99.12 -0.3% 98.78 ± 0% hackbench/performance-1600%-process-pipe/lkp-bsw01
91.05 ± 0% -1.0% 90.18 ± 0% hackbench/performance-1600%-process-pipe/lkp-hsw01
70.97 ± 12% -21.6% 55.60 ± 13% hackbench/performance-1600%-process-pipe/lkp-hsx02
96.81 ± 0% -1.5% 95.38 ± 0% hackbench/performance-1600%-process-pipe/lkp-ne04
86.74 ± 0% -1.6% 85.38 ± 1% hackbench/performance-1600%-process-pipe/lkp-nex04
91.91 ± 0% -5.3% 87.08 ± 0% hackbench/performance-1600%-process-pipe/lkp-sbx04
99.50 ± 0% -0.0% 99.47 ± 0% hackbench/performance-1600%-process-pipe/lkp-t410
98.27 ± 0% -0.6% 97.66 ± 0% hackbench/performance-1600%-process-pipe/nhm4
97.29 ± 0% -0.9% 96.42 ± 0% hackbench/performance-1600%-process-pipe/wsm
99.39 ± 0% -0.1% 99.28 ± 0% hackbench/performance-1600%-process-socket/avoton3
90.83 ± 0% -0.5% 90.35 ± 1% hackbench/performance-1600%-process-socket/grantley
94.02 ± 0% -0.4% 93.69 hackbench/performance-1600%-process-socket/ivb41
94.01 ± 0% -0.6% 93.41 ± 0% hackbench/performance-1600%-process-socket/ivb42
97.69 ± 0% -0.2% 97.49 ± 0% hackbench/performance-1600%-process-socket/lituya
99.14 ± 0% +0.1% 99.28 ± 0% hackbench/performance-1600%-process-socket/lkp-bdw01
99.46 ± 0% -0.2% 99.28 ± 0% hackbench/performance-1600%-process-socket/lkp-bdw02
99.56 ± 0% -0.1% 99.42 ± 0% hackbench/performance-1600%-process-socket/lkp-bdw03
97.52 ± 0% -0.1% 97.37 ± 0% hackbench/performance-1600%-process-socket/lkp-ne04
91.52 ± 0% -3.9% 87.91 ± 7% hackbench/performance-1600%-process-socket/lkp-nex04
99.60 ± 0% -0.0% 99.58 ± 0% hackbench/performance-1600%-process-socket/lkp-t410
88.50 ± 0% -0.5% 88.09 ± 0% hackbench/performance-1600%-process-socket/lkp-wsx02
98.81 ± 0% -0.3% 98.52 ± 0% hackbench/performance-1600%-process-socket/nhm4
98.09 ± 0% -0.2% 97.88 ± 0% hackbench/performance-1600%-process-socket/wsm
99.50 ± 0% -0.0% 99.45 ± 0% hackbench/performance-1600%-threads-pipe/avoton3
99.20 ± 0% -0.2% 99.05 ± 0% hackbench/performance-1600%-threads-pipe/lituya
99.73 ± 0% -0.0% 99.68 ± 0% hackbench/performance-1600%-threads-pipe/lkp-bdw01
99.73 ± 0% -0.1% 99.65 ± 0% hackbench/performance-1600%-threads-pipe/lkp-bdw02
99.68 ± 0% +0.1% 99.73 ± 0% hackbench/performance-1600%-threads-pipe/lkp-bdw03
90.02 ± 3% -0.3% 89.78 ± 0% hackbench/performance-1600%-threads-pipe/lkp-hsx03
98.90 ± 0% -0.1% 98.80 ± 0% hackbench/performance-1600%-threads-pipe/lkp-ne04
99.77 ± 0% -0.0% 99.76 ± 0% hackbench/performance-1600%-threads-pipe/lkp-t410
96.70 ± 0% -1.8% 95.00 ± 0% hackbench/performance-1600%-threads-pipe/lkp-wsx02
99.30 ± 0% -0.1% 99.17 ± 0% hackbench/performance-1600%-threads-pipe/nhm4
99.07 ± 0% -0.1% 98.97 ± 0% hackbench/performance-1600%-threads-pipe/wsm
99.69 ± 0% -0.0% 99.65 ± 0% hackbench/performance-1600%-threads-socket/avoton3
97.05 ± 1% -0.1% 96.97 ± 0% hackbench/performance-1600%-threads-socket/ivb42
99.08 ± 0% -1.6% 97.47 ± 1% hackbench/performance-1600%-threads-socket/lituya
99.69 ± 0% -0.1% 99.58 ± 0% hackbench/performance-1600%-threads-socket/lkp-bdw01
99.69 ± 0% -0.1% 99.62 ± 0% hackbench/performance-1600%-threads-socket/lkp-bdw02
99.63 ± 0% +0.1% 99.71 ± 0% hackbench/performance-1600%-threads-socket/lkp-bdw03
98.98 ± 0% -0.1% 98.90 ± 0% hackbench/performance-1600%-threads-socket/lkp-ne04
97.01 ± 0% -0.3% 96.69 ± 0% hackbench/performance-1600%-threads-socket/lkp-nex04
99.78 ± 0% +0.0% 99.80 ± 0% hackbench/performance-1600%-threads-socket/lkp-t410
96.31 ± 0% -0.6% 95.69 ± 0% hackbench/performance-1600%-threads-socket/lkp-wsx02
99.19 ± 0% -9.0% 90.26 ± 19% hackbench/performance-1600%-threads-socket/nhm4
99.22 ± 0% -0.1% 99.08 ± 0% hackbench/performance-1600%-threads-socket/wsm
99.77 ± 0% -0.1% 99.62 ± 0% hackbench/performance-50%-process-pipe/brickland3
99.46 ± 0% -0.2% 99.30 ± 0% hackbench/performance-50%-process-pipe/grantley
99.45 ± 0% -0.3% 99.11 ± 0% hackbench/performance-50%-process-pipe/ivb42
99.55 ± 0% -0.2% 99.40 ± 0% hackbench/performance-50%-process-pipe/lituya
99.61 ± 0% +0.1% 99.72 ± 0% hackbench/performance-50%-process-pipe/lkp-bdw01
99.74 ± 0% -0.0% 99.74 ± 0% hackbench/performance-50%-process-pipe/lkp-bdw02
99.75 ± 0% -0.1% 99.65 ± 0% hackbench/performance-50%-process-pipe/lkp-bdw03
99.47 ± 0% -0.3% 99.21 ± 0% hackbench/performance-50%-process-pipe/lkp-hsw01
99.82 ± 0% -0.1% 99.71 ± 0% hackbench/performance-50%-process-pipe/lkp-hsx03
99.76 ± 0% -0.1% 99.62 ± 0% hackbench/performance-50%-process-socket/brickland3
99.50 ± 0% -0.3% 99.20 ± 0% hackbench/performance-50%-process-socket/grantley
99.45 ± 0% -0.3% 99.18 ± 0% hackbench/performance-50%-process-socket/ivb42
99.58 ± 0% -1.1% 98.45 ± 2% hackbench/performance-50%-process-socket/lituya
99.75 ± 0% -0.0% 99.72 ± 0% hackbench/performance-50%-process-socket/lkp-bdw01
99.76 ± 0% -0.1% 99.70 ± 0% hackbench/performance-50%-process-socket/lkp-bdw02
99.77 ± 0% -0.0% 99.76 ± 0% hackbench/performance-50%-process-socket/lkp-bdw03
99.40 ± 0% -0.2% 99.17 ± 0% hackbench/performance-50%-process-socket/lkp-hsw01
99.81 ± 0% -0.1% 99.71 ± 0% hackbench/performance-50%-process-socket/lkp-hsx02
99.80 ± 0% -0.1% 99.69 ± 0% hackbench/performance-50%-process-socket/lkp-hsx03
99.61 ± 0% -0.3% 99.30 ± 0% hackbench/performance-50%-process-socket/lkp-sbx04
99.76 ± 0% -0.1% 99.63 ± 0% hackbench/performance-50%-threads-pipe/brickland3
99.52 ± 0% -0.2% 99.36 ± 0% hackbench/performance-50%-threads-pipe/grantley
99.47 ± 0% -0.3% 99.19 ± 0% hackbench/performance-50%-threads-pipe/ivb42
99.55 ± 0% -6.7% 92.84 ± 8% hackbench/performance-50%-threads-pipe/lituya
99.74 ± 0% +0.0% 99.74 ± 0% hackbench/performance-50%-threads-pipe/lkp-bdw02
99.76 ± 0% -1.8% 97.99 ± 3% hackbench/performance-50%-threads-pipe/lkp-bdw03
99.52 ± 0% -0.6% 98.92 ± 0% hackbench/performance-50%-threads-pipe/lkp-hsw01
99.84 ± 0% -0.1% 99.72 ± 0% hackbench/performance-50%-threads-pipe/lkp-hsx02
99.52 ± 0% -0.0% 99.49 ± 0% hackbench/performance-50%-threads-pipe/lkp-sbx04
99.78 ± 0% -0.2% 99.61 ± 0% hackbench/performance-50%-threads-socket/brickland3
99.53 ± 0% -0.2% 99.33 ± 0% hackbench/performance-50%-threads-socket/grantley
99.45 ± 0% -0.3% 99.16 ± 0% hackbench/performance-50%-threads-socket/ivb42
99.57 ± 0% -0.1% 99.46 ± 0% hackbench/performance-50%-threads-socket/lituya
99.75 ± 0% +0.0% 99.77 ± 0% hackbench/performance-50%-threads-socket/lkp-bdw01
99.75 ± 0% +0.0% 99.75 ± 0% hackbench/performance-50%-threads-socket/lkp-bdw02
99.78 ± 0% +0.0% 99.79 ± 0% hackbench/performance-50%-threads-socket/lkp-bdw03
99.59 ± 0% -0.2% 99.37 ± 0% hackbench/performance-50%-threads-socket/lkp-sbx04
98.98 ± 0% -0.1% 98.91 ± 0% hackbench/performance-disable_mtrr_trim-1600%-process-pipe/loslunas
89.35 ± 0% -1.4% 88.13 ± 3% hackbench/powersave-1600%-process-pipe/grantley
97.79 ± 0% -2.1% 95.71 ± 0% hackbench/powersave-1600%-process-pipe/lituya
91.14 ± 0% -0.4% 90.80 ± 0% hackbench/powersave-1600%-process-socket/grantley
97.64 ± 0% -0.2% 97.48 ± 0% hackbench/powersave-1600%-process-socket/lituya
96.91 ± 0% -0.4% 96.53 ± 0% hackbench/powersave-1600%-threads-pipe/grantley
99.23 ± 0% -0.2% 99.02 ± 0% hackbench/powersave-1600%-threads-pipe/lituya
99.08 ± 0% -0.1% 98.94 ± 0% hackbench/powersave-1600%-threads-socket/lituya
99.48 ± 0% -0.2% 99.29 ± 0% hackbench/powersave-50%-process-pipe/grantley
99.42 ± 0% -0.1% 99.36 ± 0% hackbench/powersave-50%-process-pipe/lituya
99.24 ± 0% +0.0% 99.28 ± 0% hackbench/powersave-50%-process-socket/grantley
99.59 ± 0% -0.1% 99.54 ± 0% hackbench/powersave-50%-process-socket/lituya
99.52 ± 0% -0.2% 99.35 ± 0% hackbench/powersave-50%-threads-pipe/grantley
99.56 ± 0% -0.4% 99.17 ± 0% hackbench/powersave-50%-threads-pipe/lituya
99.53 ± 0% -0.2% 99.29 ± 0% hackbench/powersave-50%-threads-socket/grantley
99.59 ± 0% -0.0% 99.55 ± 0% hackbench/powersave-50%-threads-socket/lituya
86.22 ± 0% -1.4% 84.98 ± 0% hpcc/performance/lkp-hsx03
94.12 ± 0% -1.3% 92.86 ± 0% hpcc/performance/lkp-sbx04
62.84 ± 0% +0.1% 62.89 ± 0% kbuild/performance-200%/grantley
36.73 ± 0% -2.8% 35.72 ± 0% kbuild/performance-50%/grantley
56.52 ± 1% -2.5% 55.13 ± 1% kbuild/powersave-200%/grantley
33.23 ± 0% -2.2% 32.52 ± 0% kbuild/powersave-50%/grantley
69.91 ± 0% -0.0% 69.90 ± 0% linpack/performance/ivb42
1.47 ± 0% +38.0% 2.02 ± 2% nepim/300s-100%-tcp/lkp-hsw01
0.68 -6.6% 0.64 ± 2% nepim/300s-100%-tcp6/lkp-hsw01
0.57 ± 5% -0.0% 0.57 ± 0% nepim/300s-100%-udp/lkp-hsw01
1.74 ± 1% +1.7% 1.77 ± 1% nepim/300s-100%-udp6/lkp-hsw01
0.98 ± 0% +14.3% 1.12 ± 13% nepim/300s-25%-tcp/lkp-hsw01
0.60 ± 1% +5.8% 0.64 ± 5% nepim/300s-25%-tcp6/lkp-hsw01
0.45 ± 5% -1.1% 0.45 ± 0% nepim/300s-25%-udp/lkp-hsw01
1.14 ± 1% -2.2% 1.12 ± 0% nepim/300s-25%-udp6/lkp-hsw01
3.62 ± 3% -3.0% 3.51 ± 2% netpipe/performance-tcp/ivb42
0.18 ± 2% -5.4% 0.17 ± 2% nuttcp/300s/lkp-hsw01
99.34 ± 0% -0.6% 98.75 ± 0% pbzip2/performance-100%-500K/ivb42
99.25 ± 0% -1.2% 98.02 ± 0% pbzip2/performance-100%-900K/ivb42
25.21 ± 0% +0.0% 25.21 ± 0% pbzip2/performance-25%-500K/ivb42
25.19 ± 0% +0.0% 25.19 ± 0% pbzip2/performance-25%-900K/ivb42
34.45 ± 3% +26.8% 43.70 ± 23% pft/performance-20x/t100
53.06 ± 0% -2.7% 51.64 ± 0% pft/performance-disable_mtrr_trim-20x/loslunas
99.47 ± 0% -0.4% 99.03 ± 0% pigz/performance-100%-128K/xps2
99.47 ± 0% -0.6% 98.86 ± 0% pigz/performance-100%-512K/xps2
93.03 ± 0% -1.2% 91.88 ± 0% pixz/performance-100%/lkp-wsx02
93.64 ± 0% -1.0% 92.75 ± 0% plzip/performance-100%/lkp-sbx04
24.73 ± 0% -0.5% 24.61 ± 0% plzip/performance-25%/lkp-sbx04
26.02 ± 0% +0.0% 26.03 ± 0% tcrypt/performance-2s-200-204/avoton1
25.99 ± 0% +0.0% 26.01 ± 0% tcrypt/performance-2s-205-210/avoton1
25.98 ± 0% +0.3% 26.05 ± 0% tcrypt/performance-2s-301-319/avoton1
25.99 ± 0% +0.1% 26.02 ± 0% tcrypt/performance-2s-401-417/avoton1
26.00 ± 0% +0.1% 26.02 ± 0% tcrypt/performance-2s-500-504/avoton1
15.13 ± 0% +13.5% 17.17 ± 6% tlbflush/performance-disable_mtrr_trim-200%-32x-512/loslunas
38.62 ± 22% +22.1% 47.15 ± 0% unixbench/performance-disable_mtrr_trim-context1/loslunas
44.00 ± 0% -0.4% 43.84 ± 0% unixbench/performance-disable_mtrr_trim-dhry2reg/loslunas
46.31 ± 0% -51.0% 22.70 ± 1% unixbench/performance-disable_mtrr_trim-execl/loslunas
44.13 ± 0% -0.7% 43.81 ± 0% unixbench/performance-disable_mtrr_trim-pipe/loslunas
52.62 ± 0% -39.8% 31.69 ± 1% unixbench/performance-disable_mtrr_trim-shell1/loslunas
66.97 ± 0% -13.4% 58.03 ± 1% unixbench/performance-disable_mtrr_trim-shell8/loslunas
45.66 ± 0% -57.1% 19.59 ± 0% unixbench/performance-disable_mtrr_trim-spawn/loslunas
44.04 ± 0% -0.5% 43.82 ± 0% unixbench/performance-disable_mtrr_trim-syscall/loslunas
46.36 ± 0% -0.9% 45.92 ± 0% unixbench/performance-disable_mtrr_trim-whetstone-double/loslunas
1.90 ± 6% -3.7% 1.82 ± 4% vm-scalability/performance-300s-128G-truncate/lkp-hsx03
50.87 ± 0% -17.0% 42.20 ± 0% vm-scalability/performance-300s-16G-shm-pread-rand-mt/lkp-hsx03
95.88 ± 0% -0.7% 95.22 ± 0% vm-scalability/performance-300s-16G-shm-pread-rand/lkp-hsx03
62.81 ± 1% -17.5% 51.80 ± 0% vm-scalability/performance-300s-16G-shm-xread-rand-mt/lkp-hsx03
95.86 ± 0% -0.9% 95.03 ± 0% vm-scalability/performance-300s-16G-shm-xread-rand/lkp-hsx03
27.98 ± 0% -8.2% 25.68 ± 0% vm-scalability/performance-300s-1T-msync-mt/lkp-hsx03
2.77 ± 0% +2.9% 2.85 ± 6% vm-scalability/performance-300s-1T-msync/lkp-hsx03
11.18 ± 1% -25.6% 8.32 ± 1% vm-scalability/performance-300s-1T-remap/lkp-hsx03
45.14 ± 8% -6.5% 42.20 ± 1% vm-scalability/performance-300s-256G-lru-shm-rand/lkp-hsx03
70.17 ± 0% -1.2% 69.34 ± 0% vm-scalability/performance-300s-2T-shm-pread-seq/lkp-hsx03
22.26 ± 0% -3.9% 21.39 ± 0% vm-scalability/performance-300s-2T-shm-xread-seq-mt/lkp-hsx03
69.82 ± 0% +0.3% 70.00 ± 0% vm-scalability/performance-300s-2T-shm-xread-seq/lkp-hsx03
92.93 ± 0% -1.9% 91.17 ± 0% vm-scalability/performance-300s-512G-anon-cow-rand-mt/lkp-hsx03
88.34 ± 0% -3.4% 85.34 ± 0% vm-scalability/performance-300s-512G-anon-cow-rand/lkp-hsx03
72.98 ± 3% -11.9% 64.27 ± 0% vm-scalability/performance-300s-512G-anon-w-rand-mt/lkp-hsx03
85.16 ± 0% -8.8% 77.66 ± 0% vm-scalability/performance-300s-512G-anon-w-rand/lkp-hsx03
91.75 ± 0% -5.0% 87.14 ± 3% vm-scalability/performance-300s-512G-anon-wx-rand-mt/lkp-hsx03
65.04 ± 0% -11.6% 57.47 ± 4% vm-scalability/performance-300s-8T-anon-cow-seq-mt/lkp-hsx03
59.20 ± 0% +5.3% 62.36 ± 0% vm-scalability/performance-300s-8T-anon-cow-seq/lkp-hsx03
45.38 ± 0% -85.1% 6.77 ± 3% vm-scalability/performance-300s-8T-anon-w-seq-mt/lkp-hsx03
87.53 ± 0% -23.9% 66.64 ± 0% vm-scalability/performance-300s-8T-anon-w-seq/lkp-hsx03
76.49 ± 2% -14.9% 65.08 ± 1% vm-scalability/performance-300s-8T-anon-wx-seq-mt/lkp-hsx03
95.39 ± 0% -0.4% 94.97 ± 0% vm-scalability/performance-300s-anon-r-rand-mt/lkp-hsx03
93.36 ± 1% +3.3% 96.45 ± 0% vm-scalability/performance-300s-anon-r-rand/lkp-hsx03
98.25 ± 0% -1.5% 96.80 ± 0% vm-scalability/performance-300s-anon-r-seq/lkp-hsx03
0.75 ± 1% +0.0% 0.75 ± 0% vm-scalability/performance-300s-migrate/lkp-hsx03
98.38 ± 0% -0.3% 98.10 ± 0% vm-scalability/performance-300s-mmap-pread-rand/lkp-hsx03
64.52 ± 3% +11.4% 71.88 ± 0% vm-scalability/performance-300s-mmap-pread-seq-mt/lkp-hsx03
91.45 ± 0% -0.0% 91.43 ± 0% vm-scalability/performance-300s-mmap-xread-rand-mt/lkp-hsx03
5.96 ± 0% +21.6% 7.25 ± 0% vm-scalability/performance-300s-small-allocs-mt/lkp-hsx03
5.89 ± 0% +16.4% 6.86 ± 0% vm-scalability/performance-300s-small-allocs/lkp-hsx03
33.42 ± 0% -0.4% 33.28 ± 0% will-it-scale/performance-page_fault1/brickland1
42.73 ± 0% -0.2% 42.65 ± 0% will-it-scale/performance-pread1/brickland1
41.19 ± 0% -0.2% 41.09 ± 0% will-it-scale/performance-pwrite3/brickland1
42.70 ± 0% -0.1% 42.66 ± 0% will-it-scale/performance-sched_yield/brickland1
42.72 ± 0% -0.2% 42.61 ± 0% will-it-scale/performance-write1/brickland1
42.73 ± 0% -0.2% 42.65 ± 0% will-it-scale/performance-writeseek1/brickland1
52.42 ± 0% +1.6% 53.24 ± 0% will-it-scale/powersave-context_switch1/brickland1
42.34 ± 0% -0.2% 42.24 ± 0% will-it-scale/powersave-eventfd1/brickland1
42.34 ± 0% -0.3% 42.20 ± 0% will-it-scale/powersave-lock1/brickland1
44.15 ± 0% -8.3% 40.47 ± 0% will-it-scale/powersave-open1/brickland1
33.66 ± 0% +0.3% 33.74 ± 0% will-it-scale/powersave-page_fault3/brickland1
42.34 ± 0% -0.3% 42.23 ± 0% will-it-scale/powersave-pread1/brickland1
42.27 ± 0% -0.2% 42.19 ± 0% will-it-scale/powersave-read1/brickland1
53.37 -3.0% 51.80 GEO-MEAN turbostat.%Busy
base 4c59e142fee20a57617cff2250
---------------- --------------------------
756 ± 1% -18.3% 617 ± 0% aim7/performance-2000-fork_test/brickland3
3107 ± 0% -0.1% 3104 ± 0% aim7/performance-3000-brk_test/brickland3
1006 ± 19% +4.3% 1049 ± 6% aim7/performance-3000-disk_cp/brickland3
1000 ± 9% -18.2% 818 ± 1% aim7/performance-3000-disk_rd/brickland3
3047 ± 0% -0.7% 3027 ± 0% aim7/performance-3000-sieve/brickland3
1714 ± 1% -32.5% 1157 ± 0% aim7/performance-8000-disk_src/brickland3
913 ± 24% -6.5% 854 ± 4% aim7/performance-8000-disk_wrt/brickland3
1995 ± 3% -7.2% 1852 ± 1% aim7/performance-8000-mem_rtns_1/brickland3
187 ± 1% +6.4% 199 ± 0% aim7/performance-8000-misc_rtns_1/brickland3
2009 ± 2% -6.1% 1886 ± 6% aim7/performance-8000-sort_rtns_1/brickland3
2568 ± 0% -7.2% 2382 ± 1% aim7/performance-8000-string_rtns/brickland3
2246 ± 0% -0.8% 2229 ± 0% ebizzy/performance-200%-100x-10s/lkp-nex04
76 ± 1% -0.7% 76 ± 1% fsmark/performance-1x-1t-1BRD_32G-ext4-4K-4G-fsyncBeforeClose-1fpd/ivb43
68 ± 0% -0.7% 68 ± 1% fsmark/performance-1x-1t-1BRD_32G-ext4-nfsv4-4K-4G-fsyncBeforeClose-1fpd/ivb43
64 ± 0% -0.8% 63 ± 2% fsmark/performance-1x-1t-1BRD_32G-xfs-4K-4G-fsyncBeforeClose-1fpd/ivb43
73 ± 2% -4.1% 70 ± 0% fsmark/performance-1x-1t-1BRD_32G-xfs-nfsv4-4K-4G-fsyncBeforeClose-1fpd/ivb43
1176 ± 0% +1.2% 1190 ± 0% ftq/performance-100%-20x-100000ss/lkp-nex06
2347 ± 0% +1.3% 2377 ± 0% fwq/performance-disable_mtrr_trim-100%-20x-100000ss/loslunas
2926 ± 0% -4.6% 2791 ± 4% hackbench/1600%-process-pipe/lkp-sb03
2767 ± 0% -1.3% 2732 ± 0% hackbench/1600%-process-pipe/lkp-ws02
2877 ± 0% -0.5% 2862 ± 0% hackbench/1600%-process-pipe/nhm-white
2941 ± 0% -0.9% 2914 ± 0% hackbench/1600%-process-socket/lkp-sb03
2892 ± 0% -0.2% 2887 ± 0% hackbench/1600%-process-socket/nhm-white
3036 ± 0% -0.5% 3022 ± 0% hackbench/1600%-threads-pipe/lkp-sb03
2867 ± 0% -0.5% 2853 ± 0% hackbench/1600%-threads-pipe/lkp-ws02
2904 ± 0% -0.1% 2902 ± 0% hackbench/1600%-threads-pipe/nhm-white
3034 ± 0% -0.5% 3018 ± 0% hackbench/1600%-threads-socket/lkp-sb03
2941 ± 0% -0.9% 2915 ± 0% hackbench/1600%-threads-socket/lkp-ws02
3077 ± 0% -0.3% 3067 ± 0% hackbench/50%-process-pipe/lkp-sb03
3063 ± 0% +0.2% 3068 ± 0% hackbench/50%-process-socket/lkp-sb03
3077 ± 0% -0.3% 3069 ± 0% hackbench/50%-threads-pipe/lkp-sb03
3072 ± 0% -0.1% 3068 ± 0% hackbench/50%-threads-socket/lkp-sb03
2279 ± 0% -0.3% 2271 ± 0% hackbench/performance-1600%-process-pipe/avoton3
2686 ± 5% -4.9% 2554 ± 4% hackbench/performance-1600%-process-pipe/brickland3
2362 ± 0% -2.1% 2312 ± 0% hackbench/performance-1600%-process-pipe/grantley
2744 ± 0% -1.1% 2714 ± 0% hackbench/performance-1600%-process-pipe/ivb41
2743 ± 0% -1.3% 2708 ± 0% hackbench/performance-1600%-process-pipe/ivb42
3221 ± 0% -2.4% 3143 ± 0% hackbench/performance-1600%-process-pipe/lituya
2283 ± 0% -0.5% 2272 ± 0% hackbench/performance-1600%-process-pipe/lkp-bdw02
1489 ± 0% -0.1% 1488 ± 0% hackbench/performance-1600%-process-pipe/lkp-bdw03
2220 -0.3% 2212 ± 0% hackbench/performance-1600%-process-pipe/lkp-bsw01
2784 ± 0% -1.0% 2757 ± 0% hackbench/performance-1600%-process-pipe/lkp-hsw01
2052 ± 12% -21.6% 1608 ± 13% hackbench/performance-1600%-process-pipe/lkp-hsx02
3081 ± 0% -1.6% 3030 ± 0% hackbench/performance-1600%-process-pipe/lkp-ne04
2047 ± 0% -1.8% 2010 ± 1% hackbench/performance-1600%-process-pipe/lkp-nex04
2659 ± 0% -5.3% 2519 ± 0% hackbench/performance-1600%-process-pipe/lkp-sbx04
1190 ± 0% -0.0% 1190 ± 0% hackbench/performance-1600%-process-pipe/lkp-t410
3275 ± 0% -0.6% 3255 ± 0% hackbench/performance-1600%-process-pipe/nhm4
3418 ± 0% -0.9% 3387 ± 0% hackbench/performance-1600%-process-pipe/wsm
2286 ± 0% -0.1% 2283 ± 0% hackbench/performance-1600%-process-socket/avoton3
2356 ± 0% -0.5% 2343 ± 1% hackbench/performance-1600%-process-socket/grantley
2814 ± 0% -0.4% 2804 hackbench/performance-1600%-process-socket/ivb41
2814 ± 0% -0.6% 2795 ± 0% hackbench/performance-1600%-process-socket/ivb42
3216 ± 0% -0.2% 3209 ± 0% hackbench/performance-1600%-process-socket/lituya
2274 ± 0% +0.1% 2278 ± 0% hackbench/performance-1600%-process-socket/lkp-bdw01
2282 ± 0% -0.2% 2278 ± 0% hackbench/performance-1600%-process-socket/lkp-bdw02
1489 ± 0% -0.1% 1487 ± 0% hackbench/performance-1600%-process-socket/lkp-bdw03
3113 ± 0% -0.2% 3108 ± 0% hackbench/performance-1600%-process-socket/lkp-ne04
2169 ± 0% -4.1% 2080 ± 7% hackbench/performance-1600%-process-socket/lkp-nex04
1192 ± 0% -0.0% 1192 ± 0% hackbench/performance-1600%-process-socket/lkp-t410
2233 ± 0% -0.6% 2220 ± 0% hackbench/performance-1600%-process-socket/lkp-wsx02
3293 ± 0% -0.3% 3283 ± 0% hackbench/performance-1600%-process-socket/nhm4
3446 ± 0% -0.2% 3439 ± 0% hackbench/performance-1600%-process-socket/wsm
2288 ± 0% -0.1% 2287 ± 0% hackbench/performance-1600%-threads-pipe/avoton3
3266 ± 0% -0.1% 3261 ± 0% hackbench/performance-1600%-threads-pipe/lituya
2288 ± 0% -0.0% 2287 ± 0% hackbench/performance-1600%-threads-pipe/lkp-bdw01
2288 ± 0% -0.1% 2286 ± 0% hackbench/performance-1600%-threads-pipe/lkp-bdw02
1491 ± 0% +0.1% 1492 ± 0% hackbench/performance-1600%-threads-pipe/lkp-bdw03
2424 ± 3% -0.3% 2418 ± 0% hackbench/performance-1600%-threads-pipe/lkp-hsx03
3138 ± 0% -0.1% 3135 ± 0% hackbench/performance-1600%-threads-pipe/lkp-ne04
1194 ± 0% +0.0% 1194 ± 0% hackbench/performance-1600%-threads-pipe/lkp-t410
2442 ± 0% -1.8% 2399 ± 0% hackbench/performance-1600%-threads-pipe/lkp-wsx02
3310 ± 0% -0.1% 3305 ± 0% hackbench/performance-1600%-threads-pipe/nhm4
3480 ± 0% -0.1% 3477 ± 0% hackbench/performance-1600%-threads-pipe/wsm
2293 ± 0% -0.0% 2292 ± 0% hackbench/performance-1600%-threads-socket/avoton3
2904 ± 1% -0.1% 2901 ± 0% hackbench/performance-1600%-threads-socket/ivb42
3262 ± 0% -1.6% 3209 ± 1% hackbench/performance-1600%-threads-socket/lituya
2287 ± 0% -0.1% 2284 ± 0% hackbench/performance-1600%-threads-socket/lkp-bdw01
2287 ± 0% -0.1% 2286 ± 0% hackbench/performance-1600%-threads-socket/lkp-bdw02
1080 ± 31% +13.0% 1221 ± 27% hackbench/performance-1600%-threads-socket/lkp-bdw03
3159 ± 0% -0.1% 3156 ± 0% hackbench/performance-1600%-threads-socket/lkp-ne04
2303 ± 0% -0.4% 2293 ± 0% hackbench/performance-1600%-threads-socket/lkp-nex04
1194 ± 0% +0.1% 1195 ± 0% hackbench/performance-1600%-threads-socket/lkp-t410
2431 ± 0% -0.7% 2414 ± 0% hackbench/performance-1600%-threads-socket/lkp-wsx02
3306 ± 0% -9.0% 3008 ± 19% hackbench/performance-1600%-threads-socket/nhm4
3485 ± 0% -0.1% 3480 ± 0% hackbench/performance-1600%-threads-socket/wsm
3185 ± 0% -0.2% 3180 ± 0% hackbench/performance-50%-process-pipe/brickland3
2579 ± 0% -0.1% 2576 ± 0% hackbench/performance-50%-process-pipe/grantley
2976 ± 0% -0.3% 2966 ± 0% hackbench/performance-50%-process-pipe/ivb42
3277 ± 0% -0.2% 3272 ± 0% hackbench/performance-50%-process-pipe/lituya
2285 ± 0% +0.1% 2288 ± 0% hackbench/performance-50%-process-pipe/lkp-bdw01
2288 ± 0% +0.0% 2288 ± 0% hackbench/performance-50%-process-pipe/lkp-bdw02
1492 ± 0% -9.4% 1353 ± 20% hackbench/performance-50%-process-pipe/lkp-bdw03
3076 ± 0% -0.3% 3068 ± 0% hackbench/performance-50%-process-pipe/lkp-hsw01
2688 ± 0% -0.1% 2685 ± 0% hackbench/performance-50%-process-pipe/lkp-hsx03
3184 ± 0% -0.1% 3180 ± 0% hackbench/performance-50%-process-socket/brickland3
2581 ± 0% -0.3% 2573 ± 0% hackbench/performance-50%-process-socket/grantley
2976 ± 0% -0.3% 2968 ± 0% hackbench/performance-50%-process-socket/ivb42
3278 ± 0% -1.1% 3241 ± 2% hackbench/performance-50%-process-socket/lituya
2289 ± 0% -0.0% 2288 ± 0% hackbench/performance-50%-process-socket/lkp-bdw01
2289 ± 0% -0.1% 2287 ± 0% hackbench/performance-50%-process-socket/lkp-bdw02
1493 ± 0% -0.0% 1493 ± 0% hackbench/performance-50%-process-socket/lkp-bdw03
3071 ± 0% -0.5% 3055 ± 0% hackbench/performance-50%-process-socket/lkp-hsw01
2887 ± 0% -0.1% 2884 ± 0% hackbench/performance-50%-process-socket/lkp-hsx02
2688 ± 0% -0.1% 2685 ± 0% hackbench/performance-50%-process-socket/lkp-hsx03
2882 ± 0% -0.3% 2873 ± 0% hackbench/performance-50%-process-socket/lkp-sbx04
3184 ± 0% -0.1% 3180 ± 0% hackbench/performance-50%-threads-pipe/brickland3
2581 ± 0% -0.2% 2577 ± 0% hackbench/performance-50%-threads-pipe/grantley
2977 ± 0% -0.3% 2968 ± 0% hackbench/performance-50%-threads-pipe/ivb42
3277 ± 0% -6.7% 3056 ± 8% hackbench/performance-50%-threads-pipe/lituya
2288 ± 0% +0.0% 2289 ± 0% hackbench/performance-50%-threads-pipe/lkp-bdw02
1493 ± 0% -1.8% 1466 ± 3% hackbench/performance-50%-threads-pipe/lkp-bdw03
3077 ± 0% -0.6% 3059 ± 0% hackbench/performance-50%-threads-pipe/lkp-hsw01
2888 ± 0% -0.1% 2885 ± 0% hackbench/performance-50%-threads-pipe/lkp-hsx02
2879 ± 0% -0.0% 2878 ± 0% hackbench/performance-50%-threads-pipe/lkp-sbx04
3185 ± 0% -0.2% 3179 ± 0% hackbench/performance-50%-threads-socket/brickland3
2581 ± 0% -0.2% 2576 ± 0% hackbench/performance-50%-threads-socket/grantley
2976 ± 0% -0.3% 2967 ± 0% hackbench/performance-50%-threads-socket/ivb42
3278 ± 0% -0.1% 3274 ± 0% hackbench/performance-50%-threads-socket/lituya
2288 ± 0% +0.0% 2289 ± 0% hackbench/performance-50%-threads-socket/lkp-bdw01
2289 ± 0% +0.0% 2289 ± 0% hackbench/performance-50%-threads-socket/lkp-bdw02
1493 ± 0% +0.0% 1493 ± 0% hackbench/performance-50%-threads-socket/lkp-bdw03
2881 ± 0% -0.2% 2874 ± 0% hackbench/performance-50%-threads-socket/lkp-sbx04
2370 ± 0% -0.1% 2368 ± 0% hackbench/performance-disable_mtrr_trim-1600%-process-pipe/loslunas
2311 ± 0% -1.4% 2279 ± 3% hackbench/powersave-1600%-process-pipe/grantley
3208 ± 0% -2.1% 3140 ± 0% hackbench/powersave-1600%-process-pipe/lituya
2287 ± 1% -1.6% 2251 ± 1% hackbench/powersave-1600%-process-socket/grantley
3201 ± 0% -0.1% 3199 ± 0% hackbench/powersave-1600%-process-socket/lituya
2508 ± 0% -0.4% 2497 ± 0% hackbench/powersave-1600%-threads-pipe/grantley
3262 ± 0% -0.2% 3255 ± 0% hackbench/powersave-1600%-threads-pipe/lituya
3253 ± 0% -0.1% 3250 ± 0% hackbench/powersave-1600%-threads-socket/lituya
2579 ± 0% -0.2% 2575 ± 0% hackbench/powersave-50%-process-pipe/grantley
3272 ± 0% -0.0% 3270 ± 0% hackbench/powersave-50%-process-pipe/lituya
2573 ± 0% +0.0% 2575 ± 0% hackbench/powersave-50%-process-socket/grantley
3278 ± 0% -0.1% 3276 ± 0% hackbench/powersave-50%-process-socket/lituya
2581 ± 0% -0.2% 2576 ± 0% hackbench/powersave-50%-threads-pipe/grantley
3277 ± 0% -0.4% 3263 ± 0% hackbench/powersave-50%-threads-pipe/lituya
2581 ± 0% -0.3% 2574 ± 0% hackbench/powersave-50%-threads-socket/grantley
3278 ± 0% -0.1% 3276 ± 0% hackbench/powersave-50%-threads-socket/lituya
2322 ± 0% -1.4% 2289 ± 0% hpcc/performance/lkp-hsx03
2723 ± 0% -1.3% 2686 ± 0% hpcc/performance/lkp-sbx04
1629 ± 0% +0.1% 1631 ± 0% kbuild/performance-200%/grantley
952 ± 0% -2.7% 926 ± 0% kbuild/performance-50%/grantley
1453 ± 0% -2.4% 1418 ± 1% kbuild/powersave-200%/grantley
845 ± 0% -3.4% 816 ± 0% kbuild/powersave-50%/grantley
2065 ± 0% -0.0% 2065 ± 0% linpack/performance/ivb42
24 ± 1% +34.5% 33 ± 7% nepim/300s-100%-tcp/lkp-hsw01
9 +0.0% 9 ± 0% nepim/300s-100%-tcp6/lkp-hsw01
8 ± 5% +0.0% 8 ± 5% nepim/300s-100%-udp/lkp-hsw01
49 ± 0% +0.0% 49 ± 2% nepim/300s-100%-udp6/lkp-hsw01
13 ± 0% +19.2% 15 ± 16% nepim/300s-25%-tcp/lkp-hsw01
8 ± 5% +11.8% 9 ± 5% nepim/300s-25%-tcp6/lkp-hsw01
6 ± 7% -7.7% 6 ± 0% nepim/300s-25%-udp/lkp-hsw01
22 ± 0% +0.0% 22 ± 0% nepim/300s-25%-udp6/lkp-hsw01
121 ± 3% -3.7% 117 ± 1% netpipe/performance-tcp/ivb42
2 ± 0% +0.0% 2 ± 0% nuttcp/300s/lkp-hsw01
2973 ± 0% -0.6% 2956 ± 0% pbzip2/performance-100%-500K/ivb42
2970 ± 0% -1.2% 2933 ± 0% pbzip2/performance-100%-900K/ivb42
755 ± 0% +0.3% 757 ± 0% pbzip2/performance-25%-500K/ivb42
754 ± 0% +0.1% 755 ± 0% pbzip2/performance-25%-900K/ivb42
1280 ± 0% -2.3% 1250 ± 0% pft/performance-disable_mtrr_trim-20x/loslunas
3105 ± 0% -0.4% 3093 ± 0% pigz/performance-100%-128K/xps2
3105 ± 0% -0.6% 3087 ± 0% pigz/performance-100%-512K/xps2
2349 ± 0% -1.2% 2320 ± 0% pixz/performance-100%/lkp-wsx02
2710 ± 0% -1.0% 2684 ± 0% plzip/performance-100%/lkp-sbx04
742 ± 0% -0.4% 739 ± 0% plzip/performance-25%/lkp-sbx04
624 ± 0% +0.0% 624 ± 0% tcrypt/performance-2s-200-204/avoton1
624 ± 0% +0.0% 624 ± 0% tcrypt/performance-2s-205-210/avoton1
623 ± 0% +0.3% 625 ± 0% tcrypt/performance-2s-301-319/avoton1
623 ± 0% +0.2% 624 ± 0% tcrypt/performance-2s-401-417/avoton1
623 ± 0% +0.2% 624 ± 0% tcrypt/performance-2s-500-504/avoton1
302 ± 0% +19.3% 361 ± 8% tlbflush/performance-disable_mtrr_trim-200%-32x-512/loslunas
934 ± 22% +22.0% 1140 ± 0% unixbench/performance-disable_mtrr_trim-context1/loslunas
1061 ± 0% -0.4% 1057 ± 0% unixbench/performance-disable_mtrr_trim-dhry2reg/loslunas
1121 ± 0% -48.9% 573 ± 1% unixbench/performance-disable_mtrr_trim-execl/loslunas
1065 ± 0% -0.8% 1057 ± 0% unixbench/performance-disable_mtrr_trim-pipe/loslunas
1272 ± 0% -38.4% 783 ± 1% unixbench/performance-disable_mtrr_trim-shell1/loslunas
1613 ± 0% -13.0% 1403 ± 1% unixbench/performance-disable_mtrr_trim-shell8/loslunas
1101 ± 0% -55.7% 487 ± 0% unixbench/performance-disable_mtrr_trim-spawn/loslunas
1062 ± 0% -0.5% 1057 ± 0% unixbench/performance-disable_mtrr_trim-syscall/loslunas
1119 ± 0% -1.0% 1108 ± 0% unixbench/performance-disable_mtrr_trim-whetstone-double/loslunas
52 ± 6% -2.9% 51 ± 3% vm-scalability/performance-300s-128G-truncate/lkp-hsx03
1371 ± 0% -17.0% 1137 ± 0% vm-scalability/performance-300s-16G-shm-pread-rand-mt/lkp-hsx03
2582 ± 0% -0.7% 2565 ± 0% vm-scalability/performance-300s-16G-shm-pread-rand/lkp-hsx03
1692 ± 1% -17.6% 1395 ± 0% vm-scalability/performance-300s-16G-shm-xread-rand-mt/lkp-hsx03
2582 ± 0% -0.9% 2559 ± 0% vm-scalability/performance-300s-16G-shm-xread-rand/lkp-hsx03
754 ± 0% -8.3% 691 ± 0% vm-scalability/performance-300s-1T-msync-mt/lkp-hsx03
75 ± 0% +3.3% 78 ± 6% vm-scalability/performance-300s-1T-msync/lkp-hsx03
303 ± 1% -25.7% 225 ± 1% vm-scalability/performance-300s-1T-remap/lkp-hsx03
1216 ± 8% -6.5% 1137 ± 1% vm-scalability/performance-300s-256G-lru-shm-rand/lkp-hsx03
1890 ± 0% -1.2% 1867 ± 0% vm-scalability/performance-300s-2T-shm-pread-seq/lkp-hsx03
599 ± 0% -3.9% 576 ± 0% vm-scalability/performance-300s-2T-shm-xread-seq-mt/lkp-hsx03
1880 ± 0% +0.3% 1885 ± 0% vm-scalability/performance-300s-2T-shm-xread-seq/lkp-hsx03
2503 ± 0% -1.9% 2456 ± 0% vm-scalability/performance-300s-512G-anon-cow-rand-mt/lkp-hsx03
2379 ± 0% -3.4% 2299 ± 0% vm-scalability/performance-300s-512G-anon-cow-rand/lkp-hsx03
1965 ± 3% -11.9% 1731 ± 0% vm-scalability/performance-300s-512G-anon-w-rand-mt/lkp-hsx03
2294 ± 0% -8.8% 2092 ± 0% vm-scalability/performance-300s-512G-anon-w-rand/lkp-hsx03
2471 ± 0% -5.0% 2347 ± 3% vm-scalability/performance-300s-512G-anon-wx-rand-mt/lkp-hsx03
1752 ± 0% -11.6% 1549 ± 4% vm-scalability/performance-300s-8T-anon-cow-seq-mt/lkp-hsx03
1595 ± 0% +5.3% 1680 ± 0% vm-scalability/performance-300s-8T-anon-cow-seq/lkp-hsx03
1219 ± 0% -85.0% 182 ± 3% vm-scalability/performance-300s-8T-anon-w-seq-mt/lkp-hsx03
2358 ± 0% -23.9% 1795 ± 0% vm-scalability/performance-300s-8T-anon-w-seq/lkp-hsx03
2060 ± 2% -14.9% 1753 ± 1% vm-scalability/performance-300s-8T-anon-wx-seq-mt/lkp-hsx03
2569 ± 0% -0.4% 2558 ± 0% vm-scalability/performance-300s-anon-r-rand-mt/lkp-hsx03
2515 ± 1% +3.3% 2598 ± 0% vm-scalability/performance-300s-anon-r-rand/lkp-hsx03
2646 ± 0% -1.5% 2607 ± 0% vm-scalability/performance-300s-anon-r-seq/lkp-hsx03
22 ± 0% +0.0% 22 ± 0% vm-scalability/performance-300s-migrate/lkp-hsx03
2650 ± 0% -0.3% 2642 ± 0% vm-scalability/performance-300s-mmap-pread-rand/lkp-hsx03
1738 ± 3% +11.4% 1936 ± 0% vm-scalability/performance-300s-mmap-pread-seq-mt/lkp-hsx03
2463 ± 0% -0.0% 2462 ± 0% vm-scalability/performance-300s-mmap-xread-rand-mt/lkp-hsx03
143 ± 0% +35.9% 195 ± 0% vm-scalability/performance-300s-small-allocs-mt/lkp-hsx03
158 ± 0% +16.4% 184 ± 0% vm-scalability/performance-300s-small-allocs/lkp-hsx03
620 ± 0% -0.4% 618 ± 0% will-it-scale/performance-page_fault1/brickland1
513 ± 0% -0.1% 513 ± 0% will-it-scale/performance-pread1/brickland1
495 ± 0% -0.2% 494 ± 0% will-it-scale/performance-pwrite3/brickland1
513 ± 0% +0.0% 513 ± 0% will-it-scale/performance-sched_yield/brickland1
513 ± 0% -0.3% 512 ± 0% will-it-scale/performance-write1/brickland1
513 ± 0% -0.1% 513 ± 0% will-it-scale/performance-writeseek1/brickland1
346 ± 0% +2.5% 355 ± 0% will-it-scale/powersave-context_switch1/brickland1
268 ± 0% -0.2% 267 ± 0% will-it-scale/powersave-eventfd1/brickland1
268 ± 0% -0.2% 267 ± 0% will-it-scale/powersave-lock1/brickland1
279 ± 0% -8.9% 254 ± 0% will-it-scale/powersave-open1/brickland1
218 ± 0% +0.0% 218 ± 0% will-it-scale/powersave-page_fault3/brickland1
268 ± 0% -0.2% 267 ± 0% will-it-scale/powersave-pread1/brickland1
267 ± 0% -0.2% 267 ± 0% will-it-scale/powersave-read1/brickland1
1313 -2.9% 1275 GEO-MEAN turbostat.Avg_MHz
base 4c59e142fee20a57617cff2250
---------------- --------------------------
348.37 ± 0% -34.9% 226.88 ± 0% aim7/performance-2000-fork_test/brickland3
490.61 ± 0% +0.1% 490.94 ± 0% aim7/performance-3000-brk_test/brickland3
328.73 ± 5% +0.8% 331.28 ± 2% aim7/performance-3000-disk_cp/brickland3
324.27 ± 4% -8.4% 297.09 ± 0% aim7/performance-3000-disk_rd/brickland3
524.53 ± 0% +1.3% 531.41 ± 0% aim7/performance-3000-sieve/brickland3
402.66 ± 1% -17.6% 331.60 ± 0% aim7/performance-8000-disk_src/brickland3
279.63 ± 7% -4.4% 267.26 ± 2% aim7/performance-8000-disk_wrt/brickland3
401.08 ± 0% -0.9% 397.33 ± 0% aim7/performance-8000-mem_rtns_1/brickland3
187.70 ± 0% +8.4% 203.38 ± 1% aim7/performance-8000-misc_rtns_1/brickland3
383.44 ± 0% -0.3% 382.28 ± 0% aim7/performance-8000-sort_rtns_1/brickland3
418.93 ± 0% -1.3% 413.51 ± 0% aim7/performance-8000-string_rtns/brickland3
82.38 ± 2% +0.4% 82.74 ± 2% fsmark/performance-1x-1t-1BRD_32G-ext4-4K-4G-fsyncBeforeClose-1fpd/ivb43
84.75 ± 2% -2.6% 82.55 ± 0% fsmark/performance-1x-1t-1BRD_32G-ext4-nfsv4-4K-4G-fsyncBeforeClose-1fpd/ivb43
82.63 ± 0% -1.1% 81.77 ± 1% fsmark/performance-1x-1t-1BRD_32G-xfs-4K-4G-fsyncBeforeClose-1fpd/ivb43
83.98 ± 2% -2.0% 82.27 ± 2% fsmark/performance-1x-1t-1BRD_32G-xfs-nfsv4-4K-4G-fsyncBeforeClose-1fpd/ivb43
27.46 ± 0% +0.9% 27.71 ± 0% fwq/performance-disable_mtrr_trim-100%-20x-100000ss/loslunas
195.25 ± 0% -1.1% 193.04 ± 3% hackbench/1600%-process-pipe/lkp-sb03
197.75 ± 0% -0.6% 196.60 ± 0% hackbench/1600%-process-socket/lkp-sb03
202.54 ± 0% +0.8% 204.17 ± 0% hackbench/1600%-threads-pipe/lkp-sb03
205.00 ± 0% -0.2% 204.51 ± 0% hackbench/1600%-threads-socket/lkp-sb03
194.08 ± 0% +1.0% 195.95 ± 0% hackbench/50%-process-pipe/lkp-sb03
194.97 ± 0% +1.5% 197.95 ± 0% hackbench/50%-process-socket/lkp-sb03
194.39 ± 0% +1.1% 196.51 ± 0% hackbench/50%-threads-pipe/lkp-sb03
196.58 ± 0% +1.4% 199.27 ± 0% hackbench/50%-threads-socket/lkp-sb03
8.78 ± 0% +0.4% 8.82 ± 0% hackbench/performance-1600%-process-pipe/avoton3
468.92 ± 2% -2.0% 459.50 ± 2% hackbench/performance-1600%-process-pipe/brickland3
184.17 ± 0% +0.5% 185.03 ± 0% hackbench/performance-1600%-process-pipe/grantley
194.08 ± 0% -0.3% 193.58 ± 0% hackbench/performance-1600%-process-pipe/ivb41
197.10 ± 0% -0.3% 196.56 ± 0% hackbench/performance-1600%-process-pipe/ivb42
91.52 ± 0% -0.2% 91.36 ± 0% hackbench/performance-1600%-process-pipe/lituya
9.21 ± 0% +0.9% 9.30 ± 0% hackbench/performance-1600%-process-pipe/lkp-bdw02
6.92 ± 0% +0.2% 6.93 ± 0% hackbench/performance-1600%-process-pipe/lkp-bdw03
273.27 ± 0% -0.4% 272.06 ± 0% hackbench/performance-1600%-process-pipe/lkp-hsw01
533.55 ± 4% -6.9% 496.78 ± 3% hackbench/performance-1600%-process-pipe/lkp-hsx02
335.59 ± 0% +0.8% 338.37 ± 0% hackbench/performance-1600%-process-pipe/lkp-sbx04
8.78 ± 0% +0.0% 8.78 ± 0% hackbench/performance-1600%-process-socket/avoton3
188.46 ± 0% -1.3% 185.92 ± 1% hackbench/performance-1600%-process-socket/grantley
190.81 ± 0% -0.2% 190.51 hackbench/performance-1600%-process-socket/ivb41
193.78 ± 0% -0.5% 192.84 ± 0% hackbench/performance-1600%-process-socket/ivb42
90.81 ± 0% -0.4% 90.41 ± 0% hackbench/performance-1600%-process-socket/lituya
10.07 ± 0% +0.2% 10.09 ± 0% hackbench/performance-1600%-process-socket/lkp-bdw01
9.81 ± 0% -0.2% 9.78 ± 0% hackbench/performance-1600%-process-socket/lkp-bdw02
7.14 ± 0% -0.3% 7.12 ± 0% hackbench/performance-1600%-process-socket/lkp-bdw03
8.83 ± 0% +0.1% 8.84 ± 0% hackbench/performance-1600%-threads-pipe/avoton3
92.91 ± 0% -0.1% 92.84 ± 0% hackbench/performance-1600%-threads-pipe/lituya
9.57 ± 0% +1.0% 9.67 ± 0% hackbench/performance-1600%-threads-pipe/lkp-bdw01
9.28 ± 0% +0.9% 9.36 ± 0% hackbench/performance-1600%-threads-pipe/lkp-bdw02
6.95 ± 0% +0.6% 6.99 ± 0% hackbench/performance-1600%-threads-pipe/lkp-bdw03
547.48 ± 2% +3.3% 565.41 ± 0% hackbench/performance-1600%-threads-pipe/lkp-hsx03
8.78 ± 0% +0.1% 8.79 ± 0% hackbench/performance-1600%-threads-socket/avoton3
198.22 ± 1% +0.1% 198.36 ± 0% hackbench/performance-1600%-threads-socket/ivb42
92.32 ± 0% -2.0% 90.45 ± 1% hackbench/performance-1600%-threads-socket/lituya
10.15 ± 0% -0.4% 10.11 ± 0% hackbench/performance-1600%-threads-socket/lkp-bdw01
9.84 ± 0% -0.3% 9.81 ± 0% hackbench/performance-1600%-threads-socket/lkp-bdw02
11.85 ± 32% -13.1% 10.30 ± 37% hackbench/performance-1600%-threads-socket/lkp-bdw03
509.45 ± 0% +0.3% 510.89 ± 0% hackbench/performance-50%-process-pipe/brickland3
180.62 ± 0% -0.1% 180.51 ± 0% hackbench/performance-50%-process-pipe/grantley
198.47 ± 0% +0.6% 199.66 ± 0% hackbench/performance-50%-process-pipe/ivb42
87.70 ± 0% +1.2% 88.76 ± 0% hackbench/performance-50%-process-pipe/lituya
9.16 ± 0% +1.4% 9.29 ± 0% hackbench/performance-50%-process-pipe/lkp-bdw01
8.87 ± 0% +1.4% 8.99 ± 0% hackbench/performance-50%-process-pipe/lkp-bdw02
6.76 ± 0% +24.6% 8.43 ± 38% hackbench/performance-50%-process-pipe/lkp-bdw03
271.56 ± 0% +0.9% 274.00 ± 0% hackbench/performance-50%-process-pipe/lkp-hsw01
551.67 ± 0% +0.1% 552.06 ± 0% hackbench/performance-50%-process-pipe/lkp-hsx03
512.93 ± 0% +0.3% 514.24 ± 0% hackbench/performance-50%-process-socket/brickland3
185.50 ± 0% +0.4% 186.32 ± 0% hackbench/performance-50%-process-socket/grantley
201.22 ± 0% +1.1% 203.36 ± 0% hackbench/performance-50%-process-socket/ivb42
88.55 ± 0% -0.2% 88.41 ± 1% hackbench/performance-50%-process-socket/lituya
9.37 ± 0% +1.0% 9.46 ± 0% hackbench/performance-50%-process-socket/lkp-bdw01
9.08 ± 0% +0.8% 9.15 ± 0% hackbench/performance-50%-process-socket/lkp-bdw02
6.83 ± 0% +0.8% 6.89 ± 0% hackbench/performance-50%-process-socket/lkp-bdw03
279.26 ± 0% +0.8% 281.62 ± 0% hackbench/performance-50%-process-socket/lkp-hsw01
574.24 ± 0% +0.1% 574.58 ± 0% hackbench/performance-50%-process-socket/lkp-hsx02
555.31 ± 0% +0.8% 559.61 ± 0% hackbench/performance-50%-process-socket/lkp-hsx03
341.21 ± 0% +0.7% 343.55 ± 0% hackbench/performance-50%-process-socket/lkp-sbx04
511.01 ± 0% +0.0% 511.16 ± 0% hackbench/performance-50%-threads-pipe/brickland3
181.11 ± 0% -0.3% 180.52 ± 0% hackbench/performance-50%-threads-pipe/grantley
198.68 ± 0% +0.6% 199.96 ± 0% hackbench/performance-50%-threads-pipe/ivb42
88.72 ± 0% -4.7% 84.57 ± 7% hackbench/performance-50%-threads-pipe/lituya
8.94 ± 0% +1.4% 9.06 ± 0% hackbench/performance-50%-threads-pipe/lkp-bdw02
6.80 ± 0% -0.5% 6.77 ± 2% hackbench/performance-50%-threads-pipe/lkp-bdw03
272.40 ± 0% +0.3% 273.15 ± 0% hackbench/performance-50%-threads-pipe/lkp-hsw01
567.55 ± 0% +0.1% 568.07 ± 0% hackbench/performance-50%-threads-pipe/lkp-hsx02
340.08 ± 0% +0.5% 341.73 ± 0% hackbench/performance-50%-threads-pipe/lkp-sbx04
513.56 ± 0% +0.2% 514.69 ± 0% hackbench/performance-50%-threads-socket/brickland3
185.94 ± 0% -0.0% 185.93 ± 0% hackbench/performance-50%-threads-socket/grantley
201.50 ± 0% +1.0% 203.49 ± 0% hackbench/performance-50%-threads-socket/ivb42
89.23 ± 0% +1.1% 90.20 ± 0% hackbench/performance-50%-threads-socket/lituya
9.39 ± 0% +1.3% 9.52 ± 0% hackbench/performance-50%-threads-socket/lkp-bdw01
9.11 ± 0% +1.0% 9.21 ± 0% hackbench/performance-50%-threads-socket/lkp-bdw02
6.85 ± 0% +1.0% 6.92 ± 0% hackbench/performance-50%-threads-socket/lkp-bdw03
342.90 ± 0% +0.3% 343.83 ± 0% hackbench/performance-50%-threads-socket/lkp-sbx04
20.05 ± 0% +0.9% 20.23 ± 0% hackbench/performance-disable_mtrr_trim-1600%-process-pipe/loslunas
183.31 ± 0% -1.8% 180.03 ± 2% hackbench/powersave-1600%-process-pipe/grantley
90.24 ± 0% +0.9% 91.05 ± 0% hackbench/powersave-1600%-process-pipe/lituya
181.51 ± 1% -2.5% 176.95 ± 1% hackbench/powersave-1600%-process-socket/grantley
89.72 ± 0% +0.3% 89.97 ± 0% hackbench/powersave-1600%-process-socket/lituya
197.02 ± 0% -1.0% 195.05 ± 0% hackbench/powersave-1600%-threads-pipe/grantley
92.52 ± 0% +0.1% 92.65 ± 0% hackbench/powersave-1600%-threads-pipe/lituya
91.48 ± 0% +0.0% 91.50 ± 0% hackbench/powersave-1600%-threads-socket/lituya
180.65 ± 0% -0.1% 180.50 ± 0% hackbench/powersave-50%-process-pipe/grantley
86.96 ± 0% +2.1% 88.79 ± 0% hackbench/powersave-50%-process-pipe/lituya
185.08 ± 0% +0.8% 186.63 ± 0% hackbench/powersave-50%-process-socket/grantley
87.80 ± 0% +1.7% 89.26 ± 0% hackbench/powersave-50%-process-socket/lituya
180.93 ± 0% -0.1% 180.76 ± 0% hackbench/powersave-50%-threads-pipe/grantley
88.23 ± 0% +1.4% 89.49 ± 0% hackbench/powersave-50%-threads-pipe/lituya
185.72 ± 0% +0.4% 186.44 ± 0% hackbench/powersave-50%-threads-socket/grantley
88.51 ± 0% +1.9% 90.19 ± 0% hackbench/powersave-50%-threads-socket/lituya
599.02 ± 0% -0.9% 593.70 ± 0% hpcc/performance/lkp-hsx03
353.53 ± 0% -0.3% 352.54 ± 0% hpcc/performance/lkp-sbx04
150.32 ± 0% +1.2% 152.13 ± 0% kbuild/performance-200%/grantley
144.44 ± 0% -3.0% 140.10 ± 0% kbuild/performance-50%/grantley
136.95 ± 0% -1.1% 135.49 ± 0% kbuild/powersave-200%/grantley
131.02 ± 0% -4.3% 125.34 ± 0% kbuild/powersave-50%/grantley
229.66 ± 0% -0.1% 229.52 ± 0% linpack/performance/ivb42
50.85 ± 0% +4.0% 52.88 ± 2% nepim/300s-100%-tcp/lkp-hsw01
28.77 +13.3% 32.59 ± 10% nepim/300s-100%-tcp6/lkp-hsw01
33.44 ± 1% -3.3% 32.33 ± 2% nepim/300s-100%-udp/lkp-hsw01
64.34 ± 0% -0.3% 64.12 ± 0% nepim/300s-100%-udp6/lkp-hsw01
47.48 ± 0% +1.1% 48.03 ± 1% nepim/300s-25%-tcp/lkp-hsw01
27.41 ± 0% +1.6% 27.86 ± 1% nepim/300s-25%-tcp6/lkp-hsw01
29.88 ± 5% -8.3% 27.41 ± 0% nepim/300s-25%-udp/lkp-hsw01
39.45 ± 0% +1.5% 40.05 ± 0% nepim/300s-25%-udp6/lkp-hsw01
91.54 ± 0% -9.6% 82.80 ± 1% netpipe/performance-tcp/ivb42
25.90 ± 2% -3.4% 25.02 ± 1% nuttcp/300s/lkp-hsw01
204.05 ± 0% -0.5% 203.13 ± 0% pbzip2/performance-100%-500K/ivb42
192.82 ± 0% -0.0% 192.76 ± 0% pbzip2/performance-100%-900K/ivb42
130.53 ± 0% +0.6% 131.36 ± 0% pbzip2/performance-25%-500K/ivb42
129.71 ± 0% +0.3% 130.10 ± 0% pbzip2/performance-25%-900K/ivb42
17.83 ± 0% -1.4% 17.57 ± 0% pft/performance-disable_mtrr_trim-20x/loslunas
304.06 ± 0% -0.3% 303.10 ± 0% plzip/performance-100%/lkp-sbx04
221.00 ± 0% +0.0% 221.01 ± 0% plzip/performance-25%/lkp-sbx04
7.51 ± 3% +4.0% 7.81 ± 0% tcrypt/performance-2s-200-204/avoton1
7.81 ± 0% -2.5% 7.62 ± 2% tcrypt/performance-2s-205-210/avoton1
7.42 ± 0% +5.3% 7.81 ± 0% tcrypt/performance-2s-301-319/avoton1
7.81 ± 0% +0.0% 7.81 ± 0% tcrypt/performance-2s-401-417/avoton1
7.43 ± 1% +3.8% 7.71 ± 1% tcrypt/performance-2s-500-504/avoton1
10.28 ± 0% +5.5% 10.85 ± 4% tlbflush/performance-disable_mtrr_trim-200%-32x-512/loslunas
11.78 ± 16% +15.7% 13.62 ± 0% unixbench/performance-disable_mtrr_trim-context1/loslunas
14.89 ± 4% -0.7% 14.79 ± 5% unixbench/performance-disable_mtrr_trim-dhry2reg/loslunas
14.68 ± 0% -17.7% 12.09 ± 0% unixbench/performance-disable_mtrr_trim-execl/loslunas
12.91 ± 0% -0.1% 12.89 ± 0% unixbench/performance-disable_mtrr_trim-pipe/loslunas
15.38 ± 1% -10.7% 13.74 ± 0% unixbench/performance-disable_mtrr_trim-shell1/loslunas
17.61 ± 1% -5.1% 16.71 ± 0% unixbench/performance-disable_mtrr_trim-shell8/loslunas
15.03 ± 0% -20.5% 11.96 ± 1% unixbench/performance-disable_mtrr_trim-spawn/loslunas
13.70 ± 0% +0.3% 13.75 ± 0% unixbench/performance-disable_mtrr_trim-syscall/loslunas
14.25 ± 0% -0.6% 14.17 ± 0% unixbench/performance-disable_mtrr_trim-whetstone-double/loslunas
134.21 ± 3% +0.7% 135.10 ± 2% vm-scalability/performance-300s-128G-truncate/lkp-hsx03
309.16 ± 0% -9.2% 280.68 ± 0% vm-scalability/performance-300s-16G-shm-pread-rand-mt/lkp-hsx03
494.31 ± 0% -0.4% 492.40 ± 0% vm-scalability/performance-300s-16G-shm-pread-rand/lkp-hsx03
479.29 ± 0% -3.5% 462.40 ± 0% vm-scalability/performance-300s-16G-shm-xread-rand-mt/lkp-hsx03
493.82 ± 0% -0.3% 492.12 ± 0% vm-scalability/performance-300s-16G-shm-xread-rand/lkp-hsx03
416.69 ± 0% -2.9% 404.75 ± 0% vm-scalability/performance-300s-1T-msync-mt/lkp-hsx03
180.83 ± 0% -2.4% 176.58 ± 0% vm-scalability/performance-300s-1T-msync/lkp-hsx03
231.39 ± 0% -9.7% 208.97 ± 0% vm-scalability/performance-300s-1T-remap/lkp-hsx03
328.54 ± 0% +0.8% 331.06 ± 0% vm-scalability/performance-300s-256G-lru-shm-rand/lkp-hsx03
522.23 ± 0% +0.1% 522.75 ± 0% vm-scalability/performance-300s-2T-shm-pread-seq/lkp-hsx03
426.27 ± 0% +0.3% 427.45 ± 0% vm-scalability/performance-300s-2T-shm-xread-seq-mt/lkp-hsx03
522.12 ± 0% +0.3% 523.54 ± 0% vm-scalability/performance-300s-2T-shm-xread-seq/lkp-hsx03
486.91 ± 0% +0.5% 489.11 ± 0% vm-scalability/performance-300s-512G-anon-cow-rand-mt/lkp-hsx03
491.40 ± 0% -2.6% 478.45 ± 0% vm-scalability/performance-300s-512G-anon-cow-rand/lkp-hsx03
434.11 ± 2% -7.9% 399.68 ± 0% vm-scalability/performance-300s-512G-anon-w-rand-mt/lkp-hsx03
469.13 ± 0% -2.4% 457.64 ± 0% vm-scalability/performance-300s-512G-anon-w-rand/lkp-hsx03
487.12 ± 0% -2.7% 474.11 ± 3% vm-scalability/performance-300s-512G-anon-wx-rand-mt/lkp-hsx03
483.83 ± 0% -9.0% 440.18 ± 4% vm-scalability/performance-300s-8T-anon-cow-seq-mt/lkp-hsx03
482.56 ± 0% -0.4% 480.49 ± 0% vm-scalability/performance-300s-8T-anon-cow-seq/lkp-hsx03
394.29 ± 0% -57.0% 169.62 ± 1% vm-scalability/performance-300s-8T-anon-w-seq-mt/lkp-hsx03
562.12 ± 0% -11.9% 495.23 ± 0% vm-scalability/performance-300s-8T-anon-w-seq/lkp-hsx03
558.20 ± 2% -9.5% 505.15 ± 0% vm-scalability/performance-300s-8T-anon-wx-seq-mt/lkp-hsx03
576.78 ± 0% -0.2% 575.63 ± 0% vm-scalability/performance-300s-anon-r-rand-mt/lkp-hsx03
569.27 ± 1% +2.4% 582.94 ± 0% vm-scalability/performance-300s-anon-r-rand/lkp-hsx03
624.65 ± 0% -0.4% 622.18 ± 0% vm-scalability/performance-300s-anon-r-seq/lkp-hsx03
133.98 ± 0% -1.7% 131.69 ± 0% vm-scalability/performance-300s-migrate/lkp-hsx03
500.56 ± 0% -0.2% 499.59 ± 0% vm-scalability/performance-300s-mmap-pread-rand/lkp-hsx03
412.58 ± 0% +6.3% 438.69 ± 0% vm-scalability/performance-300s-mmap-pread-seq-mt/lkp-hsx03
496.84 ± 0% -0.1% 496.38 ± 0% vm-scalability/performance-300s-mmap-xread-rand-mt/lkp-hsx03
231.30 ± 0% -12.5% 202.44 ± 0% vm-scalability/performance-300s-small-allocs-mt/lkp-hsx03
351.32 ± 0% -31.1% 242.24 ± 1% vm-scalability/performance-300s-small-allocs/lkp-hsx03
376.15 ± 0% -0.0% 376.14 ± 0% will-it-scale/performance-page_fault1/brickland1
895.47 ± 1% -0.8% 888.66 ± 3% will-it-scale/performance-pread1/brickland1
700.12 ± 0% -1.4% 690.16 ± 0% will-it-scale/performance-pwrite3/brickland1
837.10 ± 0% +3.2% 864.23 ± 0% will-it-scale/performance-sched_yield/brickland1
814.01 ± 0% +0.3% 816.47 ± 0% will-it-scale/performance-write1/brickland1
785.55 ± 0% -0.2% 784.11 ± 0% will-it-scale/performance-writeseek1/brickland1
353.64 ± 0% -2.1% 346.19 ± 0% will-it-scale/powersave-context_switch1/brickland1
529.44 ± 0% +0.7% 533.01 ± 0% will-it-scale/powersave-eventfd1/brickland1
622.96 ± 0% -29.3% 440.47 ± 0% will-it-scale/powersave-lock1/brickland1
466.97 ± 0% -0.6% 464.17 ± 0% will-it-scale/powersave-open1/brickland1
281.06 ± 0% +0.0% 281.06 ± 0% will-it-scale/powersave-page_fault3/brickland1
507.15 ± 3% -0.6% 504.26 ± 0% will-it-scale/powersave-pread1/brickland1
526.77 ± 0% +0.2% 527.88 ± 0% will-it-scale/powersave-read1/brickland1
112.76 -1.7% 110.81 GEO-MEAN turbostat.PkgWatt
base 4c59e142fee20a57617cff2250
---------------- --------------------------
96.17 ± 0% -24.5% 72.62 ± 0% aim7/performance-2000-fork_test/brickland3
62.39 ± 0% +0.4% 62.67 ± 0% aim7/performance-3000-brk_test/brickland3
62.52 ± 1% +2.1% 63.80 ± 0% aim7/performance-3000-disk_cp/brickland3
63.06 ± 0% -0.8% 62.58 ± 0% aim7/performance-3000-disk_rd/brickland3
140.71 ± 0% +0.1% 140.85 ± 0% aim7/performance-3000-sieve/brickland3
66.52 ± 0% -0.6% 66.13 ± 1% aim7/performance-8000-disk_src/brickland3
56.52 ± 2% -3.8% 54.35 ± 3% aim7/performance-8000-disk_wrt/brickland3
53.45 ± 0% +1.9% 54.48 ± 0% aim7/performance-8000-mem_rtns_1/brickland3
57.40 ± 1% -2.6% 55.89 ± 0% aim7/performance-8000-misc_rtns_1/brickland3
52.95 ± 0% +1.8% 53.88 ± 0% aim7/performance-8000-sort_rtns_1/brickland3
56.38 ± 0% -0.3% 56.21 ± 0% aim7/performance-8000-string_rtns/brickland3
5.21 ± 4% -5.6% 4.92 ± 6% fsmark/performance-1x-1t-1BRD_32G-ext4-4K-4G-fsyncBeforeClose-1fpd/ivb43
5.28 ± 0% -6.8% 4.92 ± 8% fsmark/performance-1x-1t-1BRD_32G-ext4-nfsv4-4K-4G-fsyncBeforeClose-1fpd/ivb43
4.29 ± 0% -2.6% 4.18 ± 1% fsmark/performance-1x-1t-1BRD_32G-xfs-4K-4G-fsyncBeforeClose-1fpd/ivb43
4.44 ± 1% -4.8% 4.22 ± 2% fsmark/performance-1x-1t-1BRD_32G-xfs-nfsv4-4K-4G-fsyncBeforeClose-1fpd/ivb43
71.08 ± 2% -1.0% 70.38 ± 1% hackbench/performance-1600%-process-pipe/brickland3
17.81 ± 2% -6.8% 16.60 ± 1% hackbench/performance-1600%-process-pipe/grantley
10.59 ± 0% -9.1% 9.62 ± 0% hackbench/performance-1600%-process-pipe/ivb41
9.69 ± 0% -8.5% 8.86 ± 2% hackbench/performance-1600%-process-pipe/ivb42
0.65 ± 10% +110.4% 1.38 ± 9% hackbench/performance-1600%-process-pipe/lituya
36.82 ± 0% -3.9% 35.40 ± 1% hackbench/performance-1600%-process-pipe/lkp-hsw01
47.41 ± 0% +0.0% 47.43 ± 0% hackbench/performance-1600%-process-pipe/lkp-hsx02
33.69 ± 0% -1.9% 33.05 ± 3% hackbench/performance-1600%-process-socket/grantley
18.05 ± 0% +0.2% 18.09 hackbench/performance-1600%-process-socket/ivb41
17.52 ± 0% -1.7% 17.23 ± 0% hackbench/performance-1600%-process-socket/ivb42
8.72 ± 1% -2.6% 8.49 ± 2% hackbench/performance-1600%-process-socket/lituya
0.49 ± 19% +103.7% 0.99 ± 10% hackbench/performance-1600%-threads-pipe/lituya
54.43 ± 0% +0.2% 54.54 ± 0% hackbench/performance-1600%-threads-pipe/lkp-hsx03
18.24 ± 1% -1.0% 18.06 ± 1% hackbench/performance-1600%-threads-socket/ivb42
8.14 ± 1% +2.4% 8.34 ± 1% hackbench/performance-1600%-threads-socket/lituya
59.67 ± 1% +4.8% 62.52 ± 1% hackbench/performance-50%-process-pipe/brickland3
12.55 ± 2% -0.0% 12.55 ± 2% hackbench/performance-50%-process-pipe/grantley
5.90 ± 1% +10.2% 6.51 ± 4% hackbench/performance-50%-process-pipe/ivb42
30.44 ± 0% -2.2% 29.76 ± 1% hackbench/performance-50%-process-pipe/lkp-hsw01
54.35 ± 0% +0.0% 54.35 ± 0% hackbench/performance-50%-process-pipe/lkp-hsx03
62.44 ± 2% +7.5% 67.15 ± 1% hackbench/performance-50%-process-socket/brickland3
12.42 ± 3% +10.9% 13.77 ± 2% hackbench/performance-50%-process-socket/grantley
6.49 ± 4% +14.9% 7.45 ± 1% hackbench/performance-50%-process-socket/ivb42
30.52 ± 0% +2.4% 31.24 ± 1% hackbench/performance-50%-process-socket/lkp-hsw01
47.25 ± 0% -0.1% 47.20 ± 0% hackbench/performance-50%-process-socket/lkp-hsx02
54.36 ± 0% -0.0% 54.33 ± 0% hackbench/performance-50%-process-socket/lkp-hsx03
59.82 ± 3% +6.3% 63.60 ± 1% hackbench/performance-50%-threads-pipe/brickland3
12.25 ± 2% -0.9% 12.14 ± 3% hackbench/performance-50%-threads-pipe/grantley
5.74 ± 2% +9.6% 6.29 ± 1% hackbench/performance-50%-threads-pipe/ivb42
30.06 ± 1% -0.8% 29.80 ± 1% hackbench/performance-50%-threads-pipe/lkp-hsw01
47.21 ± 0% +0.1% 47.24 ± 0% hackbench/performance-50%-threads-pipe/lkp-hsx02
62.52 ± 0% +12.1% 70.09 ± 2% hackbench/performance-50%-threads-socket/brickland3
11.96 ± 2% +11.4% 13.32 ± 1% hackbench/performance-50%-threads-socket/grantley
6.05 ± 6% +23.4% 7.47 ± 5% hackbench/performance-50%-threads-socket/ivb42
17.82 ± 3% -4.7% 16.99 ± 2% hackbench/powersave-1600%-process-pipe/grantley
0.62 ± 5% +95.8% 1.22 ± 1% hackbench/powersave-1600%-process-pipe/lituya
32.71 ± 2% +0.3% 32.80 ± 3% hackbench/powersave-1600%-process-socket/grantley
8.72 ± 0% -3.0% 8.46 ± 2% hackbench/powersave-1600%-process-socket/lituya
18.52 ± 2% -7.6% 17.11 ± 1% hackbench/powersave-1600%-threads-pipe/grantley
0.69 ± 11% +29.7% 0.89 ± 7% hackbench/powersave-1600%-threads-pipe/lituya
8.28 ± 1% +1.1% 8.37 ± 2% hackbench/powersave-1600%-threads-socket/lituya
12.22 ± 4% -0.7% 12.14 ± 1% hackbench/powersave-50%-process-pipe/grantley
12.03 ± 3% +14.1% 13.72 ± 2% hackbench/powersave-50%-process-socket/grantley
11.48 ± 1% +3.0% 11.83 ± 3% hackbench/powersave-50%-threads-pipe/grantley
0.44 ± 41% -30.9% 0.30 ± 41% hackbench/powersave-50%-threads-pipe/lituya
11.87 ± 1% +11.2% 13.20 ± 2% hackbench/powersave-50%-threads-socket/grantley
76.17 ± 0% -1.3% 75.21 ± 0% hpcc/performance/lkp-hsx03
18.60 ± 0% -1.0% 18.42 ± 0% kbuild/performance-200%/grantley
15.75 ± 1% -1.8% 15.46 ± 0% kbuild/performance-50%/grantley
17.42 ± 0% +0.9% 17.57 ± 1% kbuild/powersave-200%/grantley
15.68 ± 0% -4.8% 14.92 ± 0% kbuild/powersave-50%/grantley
13.50 ± 0% +0.1% 13.52 ± 0% linpack/performance/ivb42
16.07 ± 2% +20.0% 19.28 ± 1% nepim/300s-100%-tcp/lkp-hsw01
5.89 +40.0% 8.24 ± 23% nepim/300s-100%-tcp6/lkp-hsw01
8.68 ± 0% -9.0% 7.89 ± 6% nepim/300s-100%-udp/lkp-hsw01
15.23 ± 0% +5.8% 16.12 ± 4% nepim/300s-100%-udp6/lkp-hsw01
16.20 ± 0% +0.2% 16.24 ± 1% nepim/300s-25%-tcp/lkp-hsw01
5.63 ± 0% +6.1% 5.98 ± 3% nepim/300s-25%-tcp6/lkp-hsw01
7.09 ± 13% -20.2% 5.67 ± 1% nepim/300s-25%-udp/lkp-hsw01
9.59 ± 1% +2.3% 9.81 ± 0% nepim/300s-25%-udp6/lkp-hsw01
3.75 ± 3% +2.9% 3.86 ± 4% netpipe/performance-tcp/ivb42
4.86 ± 9% -7.6% 4.49 ± 0% nuttcp/300s/lkp-hsw01
16.20 ± 0% +0.4% 16.27 ± 0% pbzip2/performance-100%-500K/ivb42
19.20 ± 0% -1.3% 18.95 ± 0% pbzip2/performance-100%-900K/ivb42
5.29 ± 0% +0.6% 5.32 ± 0% pbzip2/performance-25%-500K/ivb42
6.22 ± 0% -1.1% 6.15 ± 0% pbzip2/performance-25%-900K/ivb42
54.62 ± 0% -0.1% 54.58 ± 0% vm-scalability/performance-300s-128G-truncate/lkp-hsx03
54.41 ± 0% +0.0% 54.42 ± 0% vm-scalability/performance-300s-16G-shm-pread-rand-mt/lkp-hsx03
59.48 ± 0% -3.4% 57.47 ± 3% vm-scalability/performance-300s-16G-shm-pread-rand/lkp-hsx03
54.20 ± 0% +0.1% 54.23 ± 0% vm-scalability/performance-300s-16G-shm-xread-rand-mt/lkp-hsx03
59.63 ± 0% -0.6% 59.27 ± 0% vm-scalability/performance-300s-16G-shm-xread-rand/lkp-hsx03
54.75 ± 0% +0.7% 55.15 ± 0% vm-scalability/performance-300s-1T-msync-mt/lkp-hsx03
55.94 ± 0% -0.1% 55.89 ± 0% vm-scalability/performance-300s-1T-msync/lkp-hsx03
58.91 ± 0% -6.8% 54.92 ± 0% vm-scalability/performance-300s-1T-remap/lkp-hsx03
60.36 ± 0% +6.0% 63.98 ± 0% vm-scalability/performance-300s-256G-lru-shm-rand/lkp-hsx03
54.59 ± 0% +0.0% 54.59 ± 0% vm-scalability/performance-300s-2T-shm-pread-seq/lkp-hsx03
54.15 ± 0% +0.1% 54.19 ± 0% vm-scalability/performance-300s-2T-shm-xread-seq-mt/lkp-hsx03
54.70 ± 0% -0.2% 54.61 ± 0% vm-scalability/performance-300s-2T-shm-xread-seq/lkp-hsx03
54.89 ± 0% +0.4% 55.08 ± 0% vm-scalability/performance-300s-512G-anon-cow-rand-mt/lkp-hsx03
118.84 ± 0% -1.9% 116.62 ± 0% vm-scalability/performance-300s-512G-anon-cow-rand/lkp-hsx03
112.24 ± 1% -8.1% 103.16 ± 0% vm-scalability/performance-300s-512G-anon-w-rand-mt/lkp-hsx03
123.90 ± 0% -13.6% 107.01 ± 0% vm-scalability/performance-300s-512G-anon-w-rand/lkp-hsx03
54.55 ± 0% +1.4% 55.33 ± 0% vm-scalability/performance-300s-512G-anon-wx-rand-mt/lkp-hsx03
81.62 ± 0% +2.6% 83.71 ± 1% vm-scalability/performance-300s-8T-anon-cow-seq-mt/lkp-hsx03
137.03 ± 0% +8.9% 149.25 ± 0% vm-scalability/performance-300s-8T-anon-cow-seq/lkp-hsx03
126.82 ± 0% -50.4% 62.97 ± 0% vm-scalability/performance-300s-8T-anon-w-seq-mt/lkp-hsx03
190.14 ± 0% -12.3% 166.68 ± 0% vm-scalability/performance-300s-8T-anon-w-seq/lkp-hsx03
91.51 ± 0% +3.6% 94.76 ± 0% vm-scalability/performance-300s-8T-anon-wx-seq-mt/lkp-hsx03
54.52 ± 0% +0.0% 54.52 ± 0% vm-scalability/performance-300s-anon-r-rand-mt/lkp-hsx03
54.51 ± 0% +0.0% 54.52 ± 0% vm-scalability/performance-300s-anon-r-rand/lkp-hsx03
54.51 ± 0% +0.0% 54.51 ± 0% vm-scalability/performance-300s-anon-r-seq/lkp-hsx03
54.50 ± 0% +0.0% 54.50 ± 0% vm-scalability/performance-300s-migrate/lkp-hsx03
59.49 ± 0% +7.5% 63.97 ± 0% vm-scalability/performance-300s-mmap-pread-rand/lkp-hsx03
59.04 ± 2% +9.9% 64.88 ± 0% vm-scalability/performance-300s-mmap-pread-seq-mt/lkp-hsx03
54.39 ± 0% +0.0% 54.41 ± 0% vm-scalability/performance-300s-mmap-xread-rand-mt/lkp-hsx03
54.33 ± 0% +0.3% 54.50 ± 0% vm-scalability/performance-300s-small-allocs-mt/lkp-hsx03
54.41 ± 0% +0.1% 54.47 ± 0% vm-scalability/performance-300s-small-allocs/lkp-hsx03
31.23 ± 0% +0.0% 31.24 ± 0% will-it-scale/performance-page_fault1/brickland1
14.91 ± 0% +0.0% 14.91 ± 0% will-it-scale/performance-pread1/brickland1
14.90 ± 0% +0.0% 14.90 ± 0% will-it-scale/performance-pwrite3/brickland1
14.90 ± 0% +0.0% 14.91 ± 0% will-it-scale/performance-sched_yield/brickland1
14.91 ± 0% +0.0% 14.91 ± 0% will-it-scale/performance-write1/brickland1
14.91 ± 0% +0.0% 14.91 ± 0% will-it-scale/performance-writeseek1/brickland1
14.89 ± 0% +0.0% 14.89 ± 0% will-it-scale/powersave-context_switch1/brickland1
14.89 ± 0% +0.0% 14.89 ± 0% will-it-scale/powersave-eventfd1/brickland1
14.89 ± 0% +0.0% 14.89 ± 0% will-it-scale/powersave-lock1/brickland1
14.89 ± 0% -0.0% 14.89 ± 0% will-it-scale/powersave-open1/brickland1
14.90 ± 0% +0.0% 14.90 ± 0% will-it-scale/powersave-page_fault3/brickland1
14.89 ± 0% +0.0% 14.89 ± 0% will-it-scale/powersave-pread1/brickland1
14.89 ± 0% +0.0% 14.89 ± 0% will-it-scale/powersave-read1/brickland1
22.21 +1.4% 22.51 GEO-MEAN turbostat.RAMWatt
On Mon, May 25, 2015 at 09:49:43AM +0800, Yuyang Du wrote:
> Hi Peter and Ingo,
>
> Changes are made for the 8th version:
>
> 1) Rebase to the latest tip tree
> 2) scale_load_down the weight when doing the averages
> 3) change util_sum to u32
>
> Thanks a lot for Ben's comments, which lead to this version.
>
> Regards,
> Yuyang
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v8 0/4] sched: Rewrite runnable load and utilization average tracking
2015-06-09 1:21 ` Yuyang Du
@ 2015-06-15 10:38 ` Boqun Feng
2015-06-15 18:46 ` Yuyang Du
0 siblings, 1 reply; 13+ messages in thread
From: Boqun Feng @ 2015-06-15 10:38 UTC (permalink / raw)
To: Yuyang Du
Cc: mingo, peterz, linux-kernel, pjt, bsegall, morten.rasmussen,
vincent.guittot, dietmar.eggemann, arjan.van.de.ven, len.brown,
rafael.j.wysocki, fengguang.wu, Srikar Dronamraju
[-- Attachment #1: Type: text/plain, Size: 878 bytes --]
Hi Yuyang,
We have tested your V7 patchset as follow:
On Intel(R) Xeon(R) CPU X5690 (12 cores), run 12 stress and 6 dbench.
Results show that usages of some CPUs are less than 50% sometimes.
We would like to test your V8 patchset, but I can neither find it in a
lkml archive, nor in my lkml subscription. Would you please send me your
V8 patchset, if convenient? Or a public git tree works too!
Regards,
Boqun
On Tue, Jun 09, 2015 at 09:21:43AM +0800, Yuyang Du wrote:
> Ping ...
>
> Plus some data tested by LKP:
>
> To name a few host configurations:
>
> host: brickland3
> model: Brickland Ivy Bridge-EX
> nr_cpu: 120
> memory: 512G
>
> host: lkp-a03
> model: Atom
> memory: 8G
>
> host: grantley
> model: Grantley Haswell-EP
> memory: 32G
>
> host: ivb43
> model: Ivytown Ivy Bridge-EP
> nr_cpu: 48
> memory: 64G
>
[snip]
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v8 0/4] sched: Rewrite runnable load and utilization average tracking
2015-06-15 10:38 ` Boqun Feng
@ 2015-06-15 18:46 ` Yuyang Du
0 siblings, 0 replies; 13+ messages in thread
From: Yuyang Du @ 2015-06-15 18:46 UTC (permalink / raw)
To: Boqun Feng
Cc: mingo, peterz, linux-kernel, pjt, bsegall, morten.rasmussen,
vincent.guittot, dietmar.eggemann, arjan.van.de.ven, len.brown,
rafael.j.wysocki, fengguang.wu, Srikar Dronamraju
Hi Boqun,
Thanks for the tests.
Indeed I can't find the 8th versio myself in the archive. That is weird.
Vincent sure received the patches, but maybe not the list, then that is
interesting...
Anyway, I will rebase the patches up-to-date, and resend it to the list
shortly.
Regarding test results, "less than 50% sometimes" meaning imbalanced?
What about versus the stock kernel?
Regards,
Yuyang
On Mon, Jun 15, 2015 at 06:38:56PM +0800, Boqun Feng wrote:
> Hi Yuyang,
>
> We have tested your V7 patchset as follow:
>
> On Intel(R) Xeon(R) CPU X5690 (12 cores), run 12 stress and 6 dbench.
> Results show that usages of some CPUs are less than 50% sometimes.
>
> We would like to test your V8 patchset, but I can neither find it in a
> lkml archive, nor in my lkml subscription. Would you please send me your
> V8 patchset, if convenient? Or a public git tree works too!
>
> Regards,
> Boqun
>
> On Tue, Jun 09, 2015 at 09:21:43AM +0800, Yuyang Du wrote:
> > Ping ...
> >
> > Plus some data tested by LKP:
> >
> > To name a few host configurations:
> >
> > host: brickland3
> > model: Brickland Ivy Bridge-EX
> > nr_cpu: 120
> > memory: 512G
> >
> > host: lkp-a03
> > model: Atom
> > memory: 8G
> >
> > host: grantley
> > model: Grantley Haswell-EP
> > memory: 32G
> >
> > host: ivb43
> > model: Ivytown Ivy Bridge-EP
> > nr_cpu: 48
> > memory: 64G
> >
> [snip]
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH v8 2/4] sched: Rewrite runnable load and utilization average tracking
2015-06-15 19:26 [Resend PATCH " Yuyang Du
@ 2015-06-15 19:26 ` Yuyang Du
2015-06-19 6:00 ` Boqun Feng
0 siblings, 1 reply; 13+ messages in thread
From: Yuyang Du @ 2015-06-15 19:26 UTC (permalink / raw)
To: mingo, peterz, linux-kernel
Cc: pjt, bsegall, morten.rasmussen, vincent.guittot, dietmar.eggemann,
arjan.van.de.ven, len.brown, rafael.j.wysocki, fengguang.wu,
boqun.feng, srikar, Yuyang Du
The idea of runnable load average (let runnable time contribute to weight)
was proposed by Paul Turner, and it is still followed by this rewrite. This
rewrite aims to solve the following issues:
1. cfs_rq's load average (namely runnable_load_avg and blocked_load_avg) is
updated at the granularity of an entity at a time, which results in the
cfs_rq's load average is stale or partially updated: at any time, only
one entity is up to date, all other entities are effectively lagging
behind. This is undesirable.
To illustrate, if we have n runnable entities in the cfs_rq, as time
elapses, they certainly become outdated:
t0: cfs_rq { e1_old, e2_old, ..., en_old }
and when we update:
t1: update e1, then we have cfs_rq { e1_new, e2_old, ..., en_old }
t2: update e2, then we have cfs_rq { e1_old, e2_new, ..., en_old }
...
We solve this by combining all runnable entities' load averages together
in cfs_rq's avg, and update the cfs_rq's avg as a whole. This is based
on the fact that if we regard the update as a function, then:
w * update(e) = update(w * e) and
update(e1) + update(e2) = update(e1 + e2), then
w1 * update(e1) + w2 * update(e2) = update(w1 * e1 + w2 * e2)
therefore, by this rewrite, we have an entirely updated cfs_rq at the
time we update it:
t1: update cfs_rq { e1_new, e2_new, ..., en_new }
t2: update cfs_rq { e1_new, e2_new, ..., en_new }
...
2. cfs_rq's load average is different between top rq->cfs_rq and other
task_group's per CPU cfs_rqs in whether or not blocked_load_average
contributes to the load.
The basic idea behind runnable load average (the same for utilization)
is that the blocked state is taken into account as opposed to only
accounting for the currently runnable state. Therefore, the average
should include both the runnable/running and blocked load averages.
This rewrite does that.
In addition, we also combine runnable/running and blocked averages
of all entities into the cfs_rq's average, and update it together at
once. This is based on the fact that:
update(runnable) + update(blocked) = update(runnable + blocked)
This significantly reduces the codes as we don't need to separately
maintain/update runnable/running load and blocked load.
3. How task_group entities' share is calculated is complex.
We reduce the complexity in this rewrite to allow a very simple rule:
the task_group's load_avg is aggregated from its per CPU cfs_rqs's
load_avgs. Then group entity's weight is simply proportional to its
own cfs_rq's load_avg / task_group's load_avg. To illustrate,
if a task_group has { cfs_rq1, cfs_rq2, ..., cfs_rqn }, then,
task_group_avg = cfs_rq1_avg + cfs_rq2_avg + ... + cfs_rqn_avg, then
cfs_rqx's entity's share = cfs_rqx_avg / task_group_avg * task_group's share
To sum up, this rewrite in principle is equivalent to the current one, but
fixes the issues described above. Turns out, it significantly reduces the
code complexity and hence increases clarity and efficiency. In addition,
the new averages are more smooth/continuous (no spurious spikes and valleys)
and updated more consistently and quickly to reflect the load dynamics. As
a result, we have less load tracking overhead, better performance, and
especially better power efficiency due to more balanced load.
Signed-off-by: Yuyang Du <yuyang.du@intel.com>
---
include/linux/sched.h | 40 ++--
kernel/sched/core.c | 3 -
kernel/sched/debug.c | 35 +--
kernel/sched/fair.c | 625 ++++++++++++++++---------------------------------
kernel/sched/sched.h | 28 +--
5 files changed, 240 insertions(+), 491 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index af0eeba..8b4bc4f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1183,29 +1183,23 @@ struct load_weight {
u32 inv_weight;
};
+/*
+ * The load_avg/util_avg represents an infinite geometric series:
+ * 1) load_avg describes the amount of time that a sched_entity
+ * is runnable on a rq. It is based on both load_sum and the
+ * weight of the task.
+ * 2) util_avg describes the amount of time that a sched_entity
+ * is running on a CPU. It is based on util_sum and is scaled
+ * in the range [0..SCHED_LOAD_SCALE].
+ * The 64 bit load_sum can:
+ * 1) for cfs_rq, afford 4353082796 (=2^64/47742/88761) entities with
+ * the highest weight (=88761) always runnable, we should not overflow
+ * 2) for entity, support any load.weight always runnable
+ */
struct sched_avg {
- u64 last_runnable_update;
- s64 decay_count;
- /*
- * utilization_avg_contrib describes the amount of time that a
- * sched_entity is running on a CPU. It is based on running_avg_sum
- * and is scaled in the range [0..SCHED_LOAD_SCALE].
- * load_avg_contrib described the amount of time that a sched_entity
- * is runnable on a rq. It is based on both runnable_avg_sum and the
- * weight of the task.
- */
- unsigned long load_avg_contrib, utilization_avg_contrib;
- /*
- * These sums represent an infinite geometric series and so are bound
- * above by 1024/(1-y). Thus we only need a u32 to store them for all
- * choices of y < 1-2^(-32)*1024.
- * running_avg_sum reflects the time that the sched_entity is
- * effectively running on the CPU.
- * runnable_avg_sum represents the amount of time a sched_entity is on
- * a runqueue which includes the running time that is monitored by
- * running_avg_sum.
- */
- u32 runnable_avg_sum, avg_period, running_avg_sum;
+ u64 last_update_time, load_sum;
+ u32 util_sum, period_contrib;
+ unsigned long load_avg, util_avg;
};
#ifdef CONFIG_SCHEDSTATS
@@ -1271,7 +1265,7 @@ struct sched_entity {
#endif
#ifdef CONFIG_SMP
- /* Per-entity load-tracking */
+ /* Per entity load average tracking */
struct sched_avg avg;
#endif
};
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 921a754..724de5b 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1828,9 +1828,6 @@ static void __sched_fork(unsigned long clone_flags, struct task_struct *p)
p->se.prev_sum_exec_runtime = 0;
p->se.nr_migrations = 0;
p->se.vruntime = 0;
-#ifdef CONFIG_SMP
- p->se.avg.decay_count = 0;
-#endif
INIT_LIST_HEAD(&p->se.group_node);
#ifdef CONFIG_SCHEDSTATS
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index ca39cb7..db3e875 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -88,12 +88,8 @@ static void print_cfs_group_stats(struct seq_file *m, int cpu, struct task_group
#endif
P(se->load.weight);
#ifdef CONFIG_SMP
- P(se->avg.runnable_avg_sum);
- P(se->avg.running_avg_sum);
- P(se->avg.avg_period);
- P(se->avg.load_avg_contrib);
- P(se->avg.utilization_avg_contrib);
- P(se->avg.decay_count);
+ P(se->avg.load_avg);
+ P(se->avg.util_avg);
#endif
#undef PN
#undef P
@@ -207,21 +203,13 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
SEQ_printf(m, " .%-30s: %d\n", "nr_running", cfs_rq->nr_running);
SEQ_printf(m, " .%-30s: %ld\n", "load", cfs_rq->load.weight);
#ifdef CONFIG_SMP
- SEQ_printf(m, " .%-30s: %ld\n", "runnable_load_avg",
- cfs_rq->runnable_load_avg);
- SEQ_printf(m, " .%-30s: %ld\n", "blocked_load_avg",
- cfs_rq->blocked_load_avg);
- SEQ_printf(m, " .%-30s: %ld\n", "utilization_load_avg",
- cfs_rq->utilization_load_avg);
+ SEQ_printf(m, " .%-30s: %lu\n", "load_avg",
+ cfs_rq->avg.load_avg);
+ SEQ_printf(m, " .%-30s: %lu\n", "util_avg",
+ cfs_rq->avg.util_avg);
#ifdef CONFIG_FAIR_GROUP_SCHED
- SEQ_printf(m, " .%-30s: %ld\n", "tg_load_contrib",
- cfs_rq->tg_load_contrib);
- SEQ_printf(m, " .%-30s: %d\n", "tg_runnable_contrib",
- cfs_rq->tg_runnable_contrib);
SEQ_printf(m, " .%-30s: %ld\n", "tg_load_avg",
atomic_long_read(&cfs_rq->tg->load_avg));
- SEQ_printf(m, " .%-30s: %d\n", "tg->runnable_avg",
- atomic_read(&cfs_rq->tg->runnable_avg));
#endif
#endif
#ifdef CONFIG_CFS_BANDWIDTH
@@ -632,12 +620,11 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
P(se.load.weight);
#ifdef CONFIG_SMP
- P(se.avg.runnable_avg_sum);
- P(se.avg.running_avg_sum);
- P(se.avg.avg_period);
- P(se.avg.load_avg_contrib);
- P(se.avg.utilization_avg_contrib);
- P(se.avg.decay_count);
+ P(se.avg.load_sum);
+ P(se.avg.util_sum);
+ P(se.avg.load_avg);
+ P(se.avg.util_avg);
+ P(se.avg.last_update_time);
#endif
P(policy);
P(prio);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 56c1b94..f336f6e 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -283,9 +283,6 @@ static inline struct cfs_rq *group_cfs_rq(struct sched_entity *grp)
return grp->my_q;
}
-static void update_cfs_rq_blocked_load(struct cfs_rq *cfs_rq,
- int force_update);
-
static inline void list_add_leaf_cfs_rq(struct cfs_rq *cfs_rq)
{
if (!cfs_rq->on_list) {
@@ -305,8 +302,6 @@ static inline void list_add_leaf_cfs_rq(struct cfs_rq *cfs_rq)
}
cfs_rq->on_list = 1;
- /* We should have no load, but we need to update last_decay. */
- update_cfs_rq_blocked_load(cfs_rq, 0);
}
}
@@ -669,19 +664,31 @@ static u64 sched_vslice(struct cfs_rq *cfs_rq, struct sched_entity *se)
static int select_idle_sibling(struct task_struct *p, int cpu);
static unsigned long task_h_load(struct task_struct *p);
-static inline void __update_task_entity_contrib(struct sched_entity *se);
-static inline void __update_task_entity_utilization(struct sched_entity *se);
+/*
+ * We choose a half-life close to 1 scheduling period.
+ * Note: The tables below are dependent on this value.
+ */
+#define LOAD_AVG_PERIOD 32
+#define LOAD_AVG_MAX 47742 /* maximum possible load avg */
+#define LOAD_AVG_MAX_N 345 /* number of full periods to produce LOAD_MAX_AVG */
/* Give new task start runnable values to heavy its load in infant time */
void init_task_runnable_average(struct task_struct *p)
{
- u32 slice;
+ struct sched_avg *sa = &p->se.avg;
- slice = sched_slice(task_cfs_rq(p), &p->se) >> 10;
- p->se.avg.runnable_avg_sum = p->se.avg.running_avg_sum = slice;
- p->se.avg.avg_period = slice;
- __update_task_entity_contrib(&p->se);
- __update_task_entity_utilization(&p->se);
+ sa->last_update_time = 0;
+ /*
+ * sched_avg's period_contrib should be strictly less then 1024, so
+ * we give it 1023 to make sure it is almost a period (1024us), and
+ * will definitely be update (after enqueue).
+ */
+ sa->period_contrib = 1023;
+ sa->load_avg = scale_load_down(p->se.load.weight);
+ sa->load_sum = sa->load_avg * LOAD_AVG_MAX;
+ sa->util_avg = scale_load_down(SCHED_LOAD_SCALE);
+ sa->util_sum = sa->util_avg * LOAD_AVG_MAX;
+ /* when this task enqueue'ed, it will contribute to its cfs_rq's load_avg */
}
#else
void init_task_runnable_average(struct task_struct *p)
@@ -1687,8 +1694,8 @@ static u64 numa_get_avg_runtime(struct task_struct *p, u64 *period)
delta = runtime - p->last_sum_exec_runtime;
*period = now - p->last_task_numa_placement;
} else {
- delta = p->se.avg.runnable_avg_sum;
- *period = p->se.avg.avg_period;
+ delta = p->se.avg.load_sum / p->se.load.weight;
+ *period = LOAD_AVG_MAX;
}
p->last_sum_exec_runtime = runtime;
@@ -2336,13 +2343,13 @@ static inline long calc_tg_weight(struct task_group *tg, struct cfs_rq *cfs_rq)
long tg_weight;
/*
- * Use this CPU's actual weight instead of the last load_contribution
- * to gain a more accurate current total weight. See
- * update_cfs_rq_load_contribution().
+ * Use this CPU's real-time load instead of the last load contribution
+ * as the updating of the contribution is delayed, and we will use the
+ * the real-time load to calc the share. See update_tg_load_avg().
*/
tg_weight = atomic_long_read(&tg->load_avg);
- tg_weight -= cfs_rq->tg_load_contrib;
- tg_weight += cfs_rq->load.weight;
+ tg_weight -= cfs_rq->tg_load_avg_contrib;
+ tg_weight += cfs_rq->avg.load_avg;
return tg_weight;
}
@@ -2352,7 +2359,7 @@ static long calc_cfs_shares(struct cfs_rq *cfs_rq, struct task_group *tg)
long tg_weight, load, shares;
tg_weight = calc_tg_weight(tg, cfs_rq);
- load = cfs_rq->load.weight;
+ load = cfs_rq->avg.load_avg;
shares = (tg->shares * load);
if (tg_weight)
@@ -2414,14 +2421,6 @@ static inline void update_cfs_shares(struct cfs_rq *cfs_rq)
#endif /* CONFIG_FAIR_GROUP_SCHED */
#ifdef CONFIG_SMP
-/*
- * We choose a half-life close to 1 scheduling period.
- * Note: The tables below are dependent on this value.
- */
-#define LOAD_AVG_PERIOD 32
-#define LOAD_AVG_MAX 47742 /* maximum possible load avg */
-#define LOAD_AVG_MAX_N 345 /* number of full periods to produce LOAD_MAX_AVG */
-
/* Precomputed fixed inverse multiplies for multiplication by y^n */
static const u32 runnable_avg_yN_inv[] = {
0xffffffff, 0xfa83b2da, 0xf5257d14, 0xefe4b99a, 0xeac0c6e6, 0xe5b906e6,
@@ -2470,9 +2469,8 @@ static __always_inline u64 decay_load(u64 val, u64 n)
local_n %= LOAD_AVG_PERIOD;
}
- val *= runnable_avg_yN_inv[local_n];
- /* We don't use SRR here since we always want to round down. */
- return val >> 32;
+ val = mul_u64_u32_shr(val, runnable_avg_yN_inv[local_n], 32);
+ return val;
}
/*
@@ -2531,23 +2529,23 @@ static u32 __compute_runnable_contrib(u64 n)
* load_avg = u_0` + y*(u_0 + u_1*y + u_2*y^2 + ... )
* = u_0 + u_1*y + u_2*y^2 + ... [re-labeling u_i --> u_{i+1}]
*/
-static __always_inline int __update_entity_runnable_avg(u64 now, int cpu,
+static __always_inline int __update_load_avg(u64 now, int cpu,
struct sched_avg *sa,
- int runnable,
+ unsigned long weight,
int running)
{
u64 delta, periods;
- u32 runnable_contrib;
+ u32 contrib;
int delta_w, decayed = 0;
unsigned long scale_freq = arch_scale_freq_capacity(NULL, cpu);
- delta = now - sa->last_runnable_update;
+ delta = now - sa->last_update_time;
/*
* This should only happen when time goes backwards, which it
* unfortunately does during sched clock init when we swap over to TSC.
*/
if ((s64)delta < 0) {
- sa->last_runnable_update = now;
+ sa->last_update_time = now;
return 0;
}
@@ -2558,26 +2556,26 @@ static __always_inline int __update_entity_runnable_avg(u64 now, int cpu,
delta >>= 10;
if (!delta)
return 0;
- sa->last_runnable_update = now;
+ sa->last_update_time = now;
/* delta_w is the amount already accumulated against our next period */
- delta_w = sa->avg_period % 1024;
+ delta_w = sa->period_contrib;
if (delta + delta_w >= 1024) {
- /* period roll-over */
decayed = 1;
+ /* how much left for next period will start over, we don't know yet */
+ sa->period_contrib = 0;
+
/*
* Now that we know we're crossing a period boundary, figure
* out how much from delta we need to complete the current
* period and accrue it.
*/
delta_w = 1024 - delta_w;
- if (runnable)
- sa->runnable_avg_sum += delta_w;
+ if (weight)
+ sa->load_sum += weight * delta_w;
if (running)
- sa->running_avg_sum += delta_w * scale_freq
- >> SCHED_CAPACITY_SHIFT;
- sa->avg_period += delta_w;
+ sa->util_sum += delta_w * scale_freq >> SCHED_CAPACITY_SHIFT;
delta -= delta_w;
@@ -2585,334 +2583,156 @@ static __always_inline int __update_entity_runnable_avg(u64 now, int cpu,
periods = delta / 1024;
delta %= 1024;
- sa->runnable_avg_sum = decay_load(sa->runnable_avg_sum,
- periods + 1);
- sa->running_avg_sum = decay_load(sa->running_avg_sum,
- periods + 1);
- sa->avg_period = decay_load(sa->avg_period,
- periods + 1);
+ sa->load_sum = decay_load(sa->load_sum, periods + 1);
+ sa->util_sum = decay_load((u64)(sa->util_sum), periods + 1);
/* Efficiently calculate \sum (1..n_period) 1024*y^i */
- runnable_contrib = __compute_runnable_contrib(periods);
- if (runnable)
- sa->runnable_avg_sum += runnable_contrib;
+ contrib = __compute_runnable_contrib(periods);
+ if (weight)
+ sa->load_sum += weight * contrib;
if (running)
- sa->running_avg_sum += runnable_contrib * scale_freq
- >> SCHED_CAPACITY_SHIFT;
- sa->avg_period += runnable_contrib;
+ sa->util_sum += contrib * scale_freq >> SCHED_CAPACITY_SHIFT;
}
/* Remainder of delta accrued against u_0` */
- if (runnable)
- sa->runnable_avg_sum += delta;
+ if (weight)
+ sa->load_sum += weight * delta;
if (running)
- sa->running_avg_sum += delta * scale_freq
- >> SCHED_CAPACITY_SHIFT;
- sa->avg_period += delta;
-
- return decayed;
-}
-
-/* Synchronize an entity's decay with its parenting cfs_rq.*/
-static inline u64 __synchronize_entity_decay(struct sched_entity *se)
-{
- struct cfs_rq *cfs_rq = cfs_rq_of(se);
- u64 decays = atomic64_read(&cfs_rq->decay_counter);
+ sa->util_sum += delta * scale_freq >> SCHED_CAPACITY_SHIFT;
- decays -= se->avg.decay_count;
- se->avg.decay_count = 0;
- if (!decays)
- return 0;
+ sa->period_contrib += delta;
- se->avg.load_avg_contrib = decay_load(se->avg.load_avg_contrib, decays);
- se->avg.utilization_avg_contrib =
- decay_load(se->avg.utilization_avg_contrib, decays);
+ if (decayed) {
+ sa->load_avg = div_u64(sa->load_sum, LOAD_AVG_MAX);
+ sa->util_avg = (sa->util_sum << SCHED_LOAD_SHIFT) / LOAD_AVG_MAX;
+ }
- return decays;
+ return decayed;
}
#ifdef CONFIG_FAIR_GROUP_SCHED
-static inline void __update_cfs_rq_tg_load_contrib(struct cfs_rq *cfs_rq,
- int force_update)
-{
- struct task_group *tg = cfs_rq->tg;
- long tg_contrib;
-
- tg_contrib = cfs_rq->runnable_load_avg + cfs_rq->blocked_load_avg;
- tg_contrib -= cfs_rq->tg_load_contrib;
-
- if (!tg_contrib)
- return;
-
- if (force_update || abs(tg_contrib) > cfs_rq->tg_load_contrib / 8) {
- atomic_long_add(tg_contrib, &tg->load_avg);
- cfs_rq->tg_load_contrib += tg_contrib;
- }
-}
-
/*
- * Aggregate cfs_rq runnable averages into an equivalent task_group
- * representation for computing load contributions.
+ * Updating tg's load_avg is necessary before update_cfs_share (which is done)
+ * and effective_load (which is not done because it is too costly).
*/
-static inline void __update_tg_runnable_avg(struct sched_avg *sa,
- struct cfs_rq *cfs_rq)
+static inline void update_tg_load_avg(struct cfs_rq *cfs_rq, int force)
{
- struct task_group *tg = cfs_rq->tg;
- long contrib;
-
- /* The fraction of a cpu used by this cfs_rq */
- contrib = div_u64((u64)sa->runnable_avg_sum << NICE_0_SHIFT,
- sa->avg_period + 1);
- contrib -= cfs_rq->tg_runnable_contrib;
+ long delta = cfs_rq->avg.load_avg - cfs_rq->tg_load_avg_contrib;
- if (abs(contrib) > cfs_rq->tg_runnable_contrib / 64) {
- atomic_add(contrib, &tg->runnable_avg);
- cfs_rq->tg_runnable_contrib += contrib;
- }
-}
-
-static inline void __update_group_entity_contrib(struct sched_entity *se)
-{
- struct cfs_rq *cfs_rq = group_cfs_rq(se);
- struct task_group *tg = cfs_rq->tg;
- int runnable_avg;
-
- u64 contrib;
-
- contrib = cfs_rq->tg_load_contrib * tg->shares;
- se->avg.load_avg_contrib = div_u64(contrib,
- atomic_long_read(&tg->load_avg) + 1);
-
- /*
- * For group entities we need to compute a correction term in the case
- * that they are consuming <1 cpu so that we would contribute the same
- * load as a task of equal weight.
- *
- * Explicitly co-ordinating this measurement would be expensive, but
- * fortunately the sum of each cpus contribution forms a usable
- * lower-bound on the true value.
- *
- * Consider the aggregate of 2 contributions. Either they are disjoint
- * (and the sum represents true value) or they are disjoint and we are
- * understating by the aggregate of their overlap.
- *
- * Extending this to N cpus, for a given overlap, the maximum amount we
- * understand is then n_i(n_i+1)/2 * w_i where n_i is the number of
- * cpus that overlap for this interval and w_i is the interval width.
- *
- * On a small machine; the first term is well-bounded which bounds the
- * total error since w_i is a subset of the period. Whereas on a
- * larger machine, while this first term can be larger, if w_i is the
- * of consequential size guaranteed to see n_i*w_i quickly converge to
- * our upper bound of 1-cpu.
- */
- runnable_avg = atomic_read(&tg->runnable_avg);
- if (runnable_avg < NICE_0_LOAD) {
- se->avg.load_avg_contrib *= runnable_avg;
- se->avg.load_avg_contrib >>= NICE_0_SHIFT;
+ if (force || abs(delta) > cfs_rq->tg_load_avg_contrib / 64) {
+ atomic_long_add(delta, &cfs_rq->tg->load_avg);
+ cfs_rq->tg_load_avg_contrib = cfs_rq->avg.load_avg;
}
}
#else /* CONFIG_FAIR_GROUP_SCHED */
-static inline void __update_cfs_rq_tg_load_contrib(struct cfs_rq *cfs_rq,
- int force_update) {}
-static inline void __update_tg_runnable_avg(struct sched_avg *sa,
- struct cfs_rq *cfs_rq) {}
-static inline void __update_group_entity_contrib(struct sched_entity *se) {}
+static inline void update_tg_load_avg(struct cfs_rq *cfs_rq, int force) {}
#endif /* CONFIG_FAIR_GROUP_SCHED */
-static inline void __update_task_entity_contrib(struct sched_entity *se)
-{
- u32 contrib;
-
- /* avoid overflowing a 32-bit type w/ SCHED_LOAD_SCALE */
- contrib = se->avg.runnable_avg_sum * scale_load_down(se->load.weight);
- contrib /= (se->avg.avg_period + 1);
- se->avg.load_avg_contrib = scale_load(contrib);
-}
+static inline u64 cfs_rq_clock_task(struct cfs_rq *cfs_rq);
-/* Compute the current contribution to load_avg by se, return any delta */
-static long __update_entity_load_avg_contrib(struct sched_entity *se)
+/* Group cfs_rq's load_avg is used for task_h_load and update_cfs_share */
+static inline int update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq)
{
- long old_contrib = se->avg.load_avg_contrib;
+ int decayed;
- if (entity_is_task(se)) {
- __update_task_entity_contrib(se);
- } else {
- __update_tg_runnable_avg(&se->avg, group_cfs_rq(se));
- __update_group_entity_contrib(se);
+ if (atomic_long_read(&cfs_rq->removed_load_avg)) {
+ long r = atomic_long_xchg(&cfs_rq->removed_load_avg, 0);
+ cfs_rq->avg.load_avg = max_t(long, cfs_rq->avg.load_avg - r, 0);
+ cfs_rq->avg.load_sum =
+ max_t(s64, cfs_rq->avg.load_sum - r * LOAD_AVG_MAX, 0);
}
- return se->avg.load_avg_contrib - old_contrib;
-}
-
-
-static inline void __update_task_entity_utilization(struct sched_entity *se)
-{
- u32 contrib;
-
- /* avoid overflowing a 32-bit type w/ SCHED_LOAD_SCALE */
- contrib = se->avg.running_avg_sum * scale_load_down(SCHED_LOAD_SCALE);
- contrib /= (se->avg.avg_period + 1);
- se->avg.utilization_avg_contrib = scale_load(contrib);
-}
+ if (atomic_long_read(&cfs_rq->removed_util_avg)) {
+ long r = atomic_long_xchg(&cfs_rq->removed_util_avg, 0);
+ cfs_rq->avg.util_avg = max_t(long, cfs_rq->avg.util_avg - r, 0);
+ cfs_rq->avg.util_sum =
+ max_t(s32, cfs_rq->avg.util_sum - r * LOAD_AVG_MAX, 0);
+ }
-static long __update_entity_utilization_avg_contrib(struct sched_entity *se)
-{
- long old_contrib = se->avg.utilization_avg_contrib;
+ decayed = __update_load_avg(now, cpu_of(rq_of(cfs_rq)), &cfs_rq->avg,
+ scale_load_down(cfs_rq->load.weight), cfs_rq->curr != NULL);
- if (entity_is_task(se))
- __update_task_entity_utilization(se);
- else
- se->avg.utilization_avg_contrib =
- group_cfs_rq(se)->utilization_load_avg;
-
- return se->avg.utilization_avg_contrib - old_contrib;
-}
+#ifndef CONFIG_64BIT
+ smp_wmb();
+ cfs_rq->load_last_update_time_copy = cfs_rq->avg.last_update_time;
+#endif
-static inline void subtract_blocked_load_contrib(struct cfs_rq *cfs_rq,
- long load_contrib)
-{
- if (likely(load_contrib < cfs_rq->blocked_load_avg))
- cfs_rq->blocked_load_avg -= load_contrib;
- else
- cfs_rq->blocked_load_avg = 0;
+ return decayed;
}
-static inline u64 cfs_rq_clock_task(struct cfs_rq *cfs_rq);
-
-/* Update a sched_entity's runnable average */
-static inline void update_entity_load_avg(struct sched_entity *se,
- int update_cfs_rq)
+/* Update task and its cfs_rq load average */
+static inline void update_load_avg(struct sched_entity *se, int update_tg)
{
struct cfs_rq *cfs_rq = cfs_rq_of(se);
- long contrib_delta, utilization_delta;
int cpu = cpu_of(rq_of(cfs_rq));
- u64 now;
+ u64 now = cfs_rq_clock_task(cfs_rq);
/*
- * For a group entity we need to use their owned cfs_rq_clock_task() in
- * case they are the parent of a throttled hierarchy.
+ * Track task load average for carrying it to new CPU after migrated, and
+ * track group sched_entity load average for task_h_load calc in migration
*/
- if (entity_is_task(se))
- now = cfs_rq_clock_task(cfs_rq);
- else
- now = cfs_rq_clock_task(group_cfs_rq(se));
+ __update_load_avg(now, cpu, &se->avg,
+ se->on_rq * scale_load_down(se->load.weight), cfs_rq->curr == se);
- if (!__update_entity_runnable_avg(now, cpu, &se->avg, se->on_rq,
- cfs_rq->curr == se))
- return;
-
- contrib_delta = __update_entity_load_avg_contrib(se);
- utilization_delta = __update_entity_utilization_avg_contrib(se);
-
- if (!update_cfs_rq)
- return;
-
- if (se->on_rq) {
- cfs_rq->runnable_load_avg += contrib_delta;
- cfs_rq->utilization_load_avg += utilization_delta;
- } else {
- subtract_blocked_load_contrib(cfs_rq, -contrib_delta);
- }
+ if (update_cfs_rq_load_avg(now, cfs_rq) && update_tg)
+ update_tg_load_avg(cfs_rq, 0);
}
-/*
- * Decay the load contributed by all blocked children and account this so that
- * their contribution may appropriately discounted when they wake up.
- */
-static void update_cfs_rq_blocked_load(struct cfs_rq *cfs_rq, int force_update)
+/* Add the load generated by se into cfs_rq's load average */
+static inline void
+enqueue_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
{
- u64 now = cfs_rq_clock_task(cfs_rq) >> 20;
- u64 decays;
-
- decays = now - cfs_rq->last_decay;
- if (!decays && !force_update)
- return;
+ struct sched_avg *sa = &se->avg;
+ u64 now = cfs_rq_clock_task(cfs_rq);
+ int migrated = 0, decayed;
- if (atomic_long_read(&cfs_rq->removed_load)) {
- unsigned long removed_load;
- removed_load = atomic_long_xchg(&cfs_rq->removed_load, 0);
- subtract_blocked_load_contrib(cfs_rq, removed_load);
+ if (sa->last_update_time == 0) {
+ sa->last_update_time = now;
+ migrated = 1;
}
-
- if (decays) {
- cfs_rq->blocked_load_avg = decay_load(cfs_rq->blocked_load_avg,
- decays);
- atomic64_add(decays, &cfs_rq->decay_counter);
- cfs_rq->last_decay = now;
+ else {
+ __update_load_avg(now, cpu_of(rq_of(cfs_rq)), sa,
+ se->on_rq * scale_load_down(se->load.weight), cfs_rq->curr == se);
}
- __update_cfs_rq_tg_load_contrib(cfs_rq, force_update);
-}
+ decayed = update_cfs_rq_load_avg(now, cfs_rq);
-/* Add the load generated by se into cfs_rq's child load-average */
-static inline void enqueue_entity_load_avg(struct cfs_rq *cfs_rq,
- struct sched_entity *se,
- int wakeup)
-{
- /*
- * We track migrations using entity decay_count <= 0, on a wake-up
- * migration we use a negative decay count to track the remote decays
- * accumulated while sleeping.
- *
- * Newly forked tasks are enqueued with se->avg.decay_count == 0, they
- * are seen by enqueue_entity_load_avg() as a migration with an already
- * constructed load_avg_contrib.
- */
- if (unlikely(se->avg.decay_count <= 0)) {
- se->avg.last_runnable_update = rq_clock_task(rq_of(cfs_rq));
- if (se->avg.decay_count) {
- /*
- * In a wake-up migration we have to approximate the
- * time sleeping. This is because we can't synchronize
- * clock_task between the two cpus, and it is not
- * guaranteed to be read-safe. Instead, we can
- * approximate this using our carried decays, which are
- * explicitly atomically readable.
- */
- se->avg.last_runnable_update -= (-se->avg.decay_count)
- << 20;
- update_entity_load_avg(se, 0);
- /* Indicate that we're now synchronized and on-rq */
- se->avg.decay_count = 0;
- }
- wakeup = 0;
- } else {
- __synchronize_entity_decay(se);
+ if (migrated) {
+ cfs_rq->avg.load_avg += sa->load_avg;
+ cfs_rq->avg.load_sum += sa->load_sum;
+ cfs_rq->avg.util_avg += sa->util_avg;
+ cfs_rq->avg.util_sum += sa->util_sum;
}
- /* migrated tasks did not contribute to our blocked load */
- if (wakeup) {
- subtract_blocked_load_contrib(cfs_rq, se->avg.load_avg_contrib);
- update_entity_load_avg(se, 0);
- }
-
- cfs_rq->runnable_load_avg += se->avg.load_avg_contrib;
- cfs_rq->utilization_load_avg += se->avg.utilization_avg_contrib;
- /* we force update consideration on load-balancer moves */
- update_cfs_rq_blocked_load(cfs_rq, !wakeup);
+ if (decayed || migrated)
+ update_tg_load_avg(cfs_rq, 0);
}
/*
- * Remove se's load from this cfs_rq child load-average, if the entity is
- * transitioning to a blocked state we track its projected decay using
- * blocked_load_avg.
+ * Task first catches up with cfs_rq, and then subtract
+ * itself from the cfs_rq (task must be off the queue now).
*/
-static inline void dequeue_entity_load_avg(struct cfs_rq *cfs_rq,
- struct sched_entity *se,
- int sleep)
+void remove_entity_load_avg(struct sched_entity *se)
{
- update_entity_load_avg(se, 1);
- /* we force update consideration on load-balancer moves */
- update_cfs_rq_blocked_load(cfs_rq, !sleep);
+ struct cfs_rq *cfs_rq = cfs_rq_of(se);
+ u64 last_update_time;
+
+#ifndef CONFIG_64BIT
+ u64 last_update_time_copy;
- cfs_rq->runnable_load_avg -= se->avg.load_avg_contrib;
- cfs_rq->utilization_load_avg -= se->avg.utilization_avg_contrib;
- if (sleep) {
- cfs_rq->blocked_load_avg += se->avg.load_avg_contrib;
- se->avg.decay_count = atomic64_read(&cfs_rq->decay_counter);
- } /* migrations, e.g. sleep=0 leave decay_count == 0 */
+ do {
+ last_update_time_copy = cfs_rq->load_last_update_time_copy;
+ smp_rmb();
+ last_update_time = cfs_rq->avg.last_update_time;
+ } while (last_update_time != last_update_time_copy);
+#else
+ last_update_time = cfs_rq->avg.last_update_time;
+#endif
+
+ __update_load_avg(last_update_time, cpu_of(rq_of(cfs_rq)), &se->avg, 0, 0);
+ atomic_long_add(se->avg.load_avg, &cfs_rq->removed_load_avg);
+ atomic_long_add(se->avg.util_avg, &cfs_rq->removed_util_avg);
}
/*
@@ -2937,16 +2757,10 @@ static int idle_balance(struct rq *this_rq);
#else /* CONFIG_SMP */
-static inline void update_entity_load_avg(struct sched_entity *se,
- int update_cfs_rq) {}
-static inline void enqueue_entity_load_avg(struct cfs_rq *cfs_rq,
- struct sched_entity *se,
- int wakeup) {}
-static inline void dequeue_entity_load_avg(struct cfs_rq *cfs_rq,
- struct sched_entity *se,
- int sleep) {}
-static inline void update_cfs_rq_blocked_load(struct cfs_rq *cfs_rq,
- int force_update) {}
+static inline void update_load_avg(struct sched_entity *se, int update_tg) {}
+static inline void
+enqueue_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se) {}
+static inline void remove_entity_load_avg(struct sched_entity *se) {}
static inline int idle_balance(struct rq *rq)
{
@@ -3078,7 +2892,7 @@ enqueue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
* Update run-time statistics of the 'current'.
*/
update_curr(cfs_rq);
- enqueue_entity_load_avg(cfs_rq, se, flags & ENQUEUE_WAKEUP);
+ enqueue_entity_load_avg(cfs_rq, se);
account_entity_enqueue(cfs_rq, se);
update_cfs_shares(cfs_rq);
@@ -3153,7 +2967,7 @@ dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
* Update run-time statistics of the 'current'.
*/
update_curr(cfs_rq);
- dequeue_entity_load_avg(cfs_rq, se, flags & DEQUEUE_SLEEP);
+ update_load_avg(se, 1);
update_stats_dequeue(cfs_rq, se);
if (flags & DEQUEUE_SLEEP) {
@@ -3243,7 +3057,7 @@ set_next_entity(struct cfs_rq *cfs_rq, struct sched_entity *se)
*/
update_stats_wait_end(cfs_rq, se);
__dequeue_entity(cfs_rq, se);
- update_entity_load_avg(se, 1);
+ update_load_avg(se, 1);
}
update_stats_curr_start(cfs_rq, se);
@@ -3343,7 +3157,7 @@ static void put_prev_entity(struct cfs_rq *cfs_rq, struct sched_entity *prev)
/* Put 'current' back into the tree. */
__enqueue_entity(cfs_rq, prev);
/* in !on_rq case, update occurred at dequeue */
- update_entity_load_avg(prev, 1);
+ update_load_avg(prev, 0);
}
cfs_rq->curr = NULL;
}
@@ -3359,8 +3173,7 @@ entity_tick(struct cfs_rq *cfs_rq, struct sched_entity *curr, int queued)
/*
* Ensure that runnable average is periodically updated.
*/
- update_entity_load_avg(curr, 1);
- update_cfs_rq_blocked_load(cfs_rq, 1);
+ update_load_avg(curr, 1);
update_cfs_shares(cfs_rq);
#ifdef CONFIG_SCHED_HRTICK
@@ -4233,8 +4046,8 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags)
if (cfs_rq_throttled(cfs_rq))
break;
+ update_load_avg(se, 1);
update_cfs_shares(cfs_rq);
- update_entity_load_avg(se, 1);
}
if (!se)
@@ -4293,8 +4106,8 @@ static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int flags)
if (cfs_rq_throttled(cfs_rq))
break;
+ update_load_avg(se, 1);
update_cfs_shares(cfs_rq);
- update_entity_load_avg(se, 1);
}
if (!se)
@@ -4433,7 +4246,7 @@ static void __update_cpu_load(struct rq *this_rq, unsigned long this_load,
static void update_idle_cpu_load(struct rq *this_rq)
{
unsigned long curr_jiffies = READ_ONCE(jiffies);
- unsigned long load = this_rq->cfs.runnable_load_avg;
+ unsigned long load = this_rq->cfs.avg.load_avg;
unsigned long pending_updates;
/*
@@ -4479,7 +4292,7 @@ void update_cpu_load_nohz(void)
*/
void update_cpu_load_active(struct rq *this_rq)
{
- unsigned long load = this_rq->cfs.runnable_load_avg;
+ unsigned long load = this_rq->cfs.avg.load_avg;
/*
* See the mess around update_idle_cpu_load() / update_cpu_load_nohz().
*/
@@ -4490,7 +4303,7 @@ void update_cpu_load_active(struct rq *this_rq)
/* Used instead of source_load when we know the type == 0 */
static unsigned long weighted_cpuload(const int cpu)
{
- return cpu_rq(cpu)->cfs.runnable_load_avg;
+ return cpu_rq(cpu)->cfs.avg.load_avg;
}
/*
@@ -4540,7 +4353,7 @@ static unsigned long cpu_avg_load_per_task(int cpu)
{
struct rq *rq = cpu_rq(cpu);
unsigned long nr_running = READ_ONCE(rq->cfs.h_nr_running);
- unsigned long load_avg = rq->cfs.runnable_load_avg;
+ unsigned long load_avg = rq->cfs.avg.load_avg;
if (nr_running)
return load_avg / nr_running;
@@ -4659,7 +4472,7 @@ static long effective_load(struct task_group *tg, int cpu, long wl, long wg)
/*
* w = rw_i + @wl
*/
- w = se->my_q->load.weight + wl;
+ w = se->my_q->avg.load_avg + wl;
/*
* wl = S * s'_i; see (2)
@@ -4680,7 +4493,7 @@ static long effective_load(struct task_group *tg, int cpu, long wl, long wg)
/*
* wl = dw_i = S * (s'_i - s_i); see (3)
*/
- wl -= se->load.weight;
+ wl -= se->avg.load_avg;
/*
* Recursively apply this logic to all parent groups to compute
@@ -4754,14 +4567,14 @@ static int wake_affine(struct sched_domain *sd, struct task_struct *p, int sync)
*/
if (sync) {
tg = task_group(current);
- weight = current->se.load.weight;
+ weight = current->se.avg.load_avg;
this_load += effective_load(tg, this_cpu, -weight, -weight);
load += effective_load(tg, prev_cpu, 0, -weight);
}
tg = task_group(p);
- weight = p->se.load.weight;
+ weight = p->se.avg.load_avg;
/*
* In low-load situations, where prev_cpu is idle and this_cpu is idle
@@ -4954,12 +4767,12 @@ done:
* tasks. The unit of the return value must be the one of capacity so we can
* compare the usage with the capacity of the CPU that is available for CFS
* task (ie cpu_capacity).
- * cfs.utilization_load_avg is the sum of running time of runnable tasks on a
+ * cfs.avg.util_avg is the sum of running time of runnable tasks on a
* CPU. It represents the amount of utilization of a CPU in the range
* [0..SCHED_LOAD_SCALE]. The usage of a CPU can't be higher than the full
* capacity of the CPU because it's about the running time on this CPU.
- * Nevertheless, cfs.utilization_load_avg can be higher than SCHED_LOAD_SCALE
- * because of unfortunate rounding in avg_period and running_load_avg or just
+ * Nevertheless, cfs.avg.util_avg can be higher than SCHED_LOAD_SCALE
+ * because of unfortunate rounding in util_avg or just
* after migrating tasks until the average stabilizes with the new running
* time. So we need to check that the usage stays into the range
* [0..cpu_capacity_orig] and cap if necessary.
@@ -4968,7 +4781,7 @@ done:
*/
static int get_cpu_usage(int cpu)
{
- unsigned long usage = cpu_rq(cpu)->cfs.utilization_load_avg;
+ unsigned long usage = cpu_rq(cpu)->cfs.avg.util_avg;
unsigned long capacity = capacity_orig_of(cpu);
if (usage >= SCHED_LOAD_SCALE)
@@ -5074,26 +4887,22 @@ unlock:
* previous cpu. However, the caller only guarantees p->pi_lock is held; no
* other assumptions, including the state of rq->lock, should be made.
*/
-static void
-migrate_task_rq_fair(struct task_struct *p, int next_cpu)
+static void migrate_task_rq_fair(struct task_struct *p, int next_cpu)
{
- struct sched_entity *se = &p->se;
- struct cfs_rq *cfs_rq = cfs_rq_of(se);
-
/*
- * Load tracking: accumulate removed load so that it can be processed
- * when we next update owning cfs_rq under rq->lock. Tasks contribute
- * to blocked load iff they have a positive decay-count. It can never
- * be negative here since on-rq tasks have decay-count == 0.
+ * We are supposed to update the task to "current" time, then its up to date
+ * and ready to go to new CPU/cfs_rq. But we have difficulty in getting
+ * what current time is, so simply throw away the out-of-date time. This
+ * will result in the wakee task is less decayed, but giving the wakee more
+ * load sounds not bad.
*/
- if (se->avg.decay_count) {
- se->avg.decay_count = -__synchronize_entity_decay(se);
- atomic_long_add(se->avg.load_avg_contrib,
- &cfs_rq->removed_load);
- }
+ remove_entity_load_avg(&p->se);
+
+ /* Tell new CPU we are migrated */
+ p->se.avg.last_update_time = 0;
/* We have migrated, no longer consider this task hot */
- se->exec_start = 0;
+ p->se.exec_start = 0;
}
#endif /* CONFIG_SMP */
@@ -5977,36 +5786,6 @@ static void attach_tasks(struct lb_env *env)
}
#ifdef CONFIG_FAIR_GROUP_SCHED
-/*
- * update tg->load_weight by folding this cpu's load_avg
- */
-static void __update_blocked_averages_cpu(struct task_group *tg, int cpu)
-{
- struct sched_entity *se = tg->se[cpu];
- struct cfs_rq *cfs_rq = tg->cfs_rq[cpu];
-
- /* throttled entities do not contribute to load */
- if (throttled_hierarchy(cfs_rq))
- return;
-
- update_cfs_rq_blocked_load(cfs_rq, 1);
-
- if (se) {
- update_entity_load_avg(se, 1);
- /*
- * We pivot on our runnable average having decayed to zero for
- * list removal. This generally implies that all our children
- * have also been removed (modulo rounding error or bandwidth
- * control); however, such cases are rare and we can fix these
- * at enqueue.
- *
- * TODO: fix up out-of-order children on enqueue.
- */
- if (!se->avg.runnable_avg_sum && !cfs_rq->nr_running)
- list_del_leaf_cfs_rq(cfs_rq);
- }
-}
-
static void update_blocked_averages(int cpu)
{
struct rq *rq = cpu_rq(cpu);
@@ -6015,17 +5794,17 @@ static void update_blocked_averages(int cpu)
raw_spin_lock_irqsave(&rq->lock, flags);
update_rq_clock(rq);
+
/*
* Iterates the task_group tree in a bottom up fashion, see
* list_add_leaf_cfs_rq() for details.
*/
for_each_leaf_cfs_rq(rq, cfs_rq) {
- /*
- * Note: We may want to consider periodically releasing
- * rq->lock about these updates so that creating many task
- * groups does not result in continually extending hold time.
- */
- __update_blocked_averages_cpu(cfs_rq->tg, rq->cpu);
+ /* throttled entities do not contribute to load */
+ if (throttled_hierarchy(cfs_rq))
+ continue;
+
+ update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq);
}
raw_spin_unlock_irqrestore(&rq->lock, flags);
@@ -6055,14 +5834,13 @@ static void update_cfs_rq_h_load(struct cfs_rq *cfs_rq)
}
if (!se) {
- cfs_rq->h_load = cfs_rq->runnable_load_avg;
+ cfs_rq->h_load = cfs_rq->avg.load_avg;
cfs_rq->last_h_load_update = now;
}
while ((se = cfs_rq->h_load_next) != NULL) {
load = cfs_rq->h_load;
- load = div64_ul(load * se->avg.load_avg_contrib,
- cfs_rq->runnable_load_avg + 1);
+ load = div64_ul(load * se->avg.load_avg, cfs_rq->avg.load_avg + 1);
cfs_rq = group_cfs_rq(se);
cfs_rq->h_load = load;
cfs_rq->last_h_load_update = now;
@@ -6074,8 +5852,8 @@ static unsigned long task_h_load(struct task_struct *p)
struct cfs_rq *cfs_rq = task_cfs_rq(p);
update_cfs_rq_h_load(cfs_rq);
- return div64_ul(p->se.avg.load_avg_contrib * cfs_rq->h_load,
- cfs_rq->runnable_load_avg + 1);
+ return div64_ul(p->se.avg.load_avg * cfs_rq->h_load,
+ cfs_rq->avg.load_avg + 1);
}
#else
static inline void update_blocked_averages(int cpu)
@@ -6084,7 +5862,7 @@ static inline void update_blocked_averages(int cpu)
static unsigned long task_h_load(struct task_struct *p)
{
- return p->se.avg.load_avg_contrib;
+ return p->se.avg.load_avg;
}
#endif
@@ -8085,15 +7863,18 @@ static void switched_from_fair(struct rq *rq, struct task_struct *p)
}
#ifdef CONFIG_SMP
- /*
- * Remove our load from contribution when we leave sched_fair
- * and ensure we don't carry in an old decay_count if we
- * switch back.
- */
- if (se->avg.decay_count) {
- __synchronize_entity_decay(se);
- subtract_blocked_load_contrib(cfs_rq, se->avg.load_avg_contrib);
- }
+ /* Catch up with the cfs_rq and remove our load when we leave */
+ __update_load_avg(cfs_rq->avg.last_update_time, cpu_of(rq), &se->avg,
+ se->on_rq * scale_load_down(se->load.weight), cfs_rq->curr == se);
+
+ cfs_rq->avg.load_avg =
+ max_t(long, cfs_rq->avg.load_avg - se->avg.load_avg, 0);
+ cfs_rq->avg.load_sum =
+ max_t(s64, cfs_rq->avg.load_sum - se->avg.load_sum, 0);
+ cfs_rq->avg.util_avg =
+ max_t(long, cfs_rq->avg.util_avg - se->avg.util_avg, 0);
+ cfs_rq->avg.util_sum =
+ max_t(s32, cfs_rq->avg.util_sum - se->avg.util_sum, 0);
#endif
}
@@ -8150,8 +7931,8 @@ void init_cfs_rq(struct cfs_rq *cfs_rq)
cfs_rq->min_vruntime_copy = cfs_rq->min_vruntime;
#endif
#ifdef CONFIG_SMP
- atomic64_set(&cfs_rq->decay_counter, 1);
- atomic_long_set(&cfs_rq->removed_load, 0);
+ atomic_long_set(&cfs_rq->removed_load_avg, 0);
+ atomic_long_set(&cfs_rq->removed_util_avg, 0);
#endif
}
@@ -8196,14 +7977,14 @@ static void task_move_group_fair(struct task_struct *p, int queued)
if (!queued) {
cfs_rq = cfs_rq_of(se);
se->vruntime += cfs_rq->min_vruntime;
+
#ifdef CONFIG_SMP
- /*
- * migrate_task_rq_fair() will have removed our previous
- * contribution, but we must synchronize for ongoing future
- * decay.
- */
- se->avg.decay_count = atomic64_read(&cfs_rq->decay_counter);
- cfs_rq->blocked_load_avg += se->avg.load_avg_contrib;
+ /* Virtually synchronize task with its new cfs_rq */
+ p->se.avg.last_update_time = cfs_rq->avg.last_update_time;
+ cfs_rq->avg.load_avg += p->se.avg.load_avg;
+ cfs_rq->avg.load_sum += p->se.avg.load_sum;
+ cfs_rq->avg.util_avg += p->se.avg.util_avg;
+ cfs_rq->avg.util_sum += p->se.avg.util_sum;
#endif
}
}
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index d465a5c..3dfec8d 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -245,7 +245,6 @@ struct task_group {
#ifdef CONFIG_SMP
atomic_long_t load_avg;
- atomic_t runnable_avg;
#endif
#endif
@@ -366,27 +365,18 @@ struct cfs_rq {
#ifdef CONFIG_SMP
/*
- * CFS Load tracking
- * Under CFS, load is tracked on a per-entity basis and aggregated up.
- * This allows for the description of both thread and group usage (in
- * the FAIR_GROUP_SCHED case).
- * runnable_load_avg is the sum of the load_avg_contrib of the
- * sched_entities on the rq.
- * blocked_load_avg is similar to runnable_load_avg except that its
- * the blocked sched_entities on the rq.
- * utilization_load_avg is the sum of the average running time of the
- * sched_entities on the rq.
+ * CFS load tracking
*/
- unsigned long runnable_load_avg, blocked_load_avg, utilization_load_avg;
- atomic64_t decay_counter;
- u64 last_decay;
- atomic_long_t removed_load;
-
+ struct sched_avg avg;
#ifdef CONFIG_FAIR_GROUP_SCHED
- /* Required to track per-cpu representation of a task_group */
- u32 tg_runnable_contrib;
- unsigned long tg_load_contrib;
+ unsigned long tg_load_avg_contrib;
+#endif
+ atomic_long_t removed_load_avg, removed_util_avg;
+#ifndef CONFIG_64BIT
+ u64 load_last_update_time_copy;
+#endif
+#ifdef CONFIG_FAIR_GROUP_SCHED
/*
* h_load = weight * f(tg)
*
--
1.7.9.5
^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [PATCH v8 2/4] sched: Rewrite runnable load and utilization average tracking
2015-06-19 6:00 ` Boqun Feng
@ 2015-06-18 23:05 ` Yuyang Du
2015-06-19 7:57 ` Boqun Feng
0 siblings, 1 reply; 13+ messages in thread
From: Yuyang Du @ 2015-06-18 23:05 UTC (permalink / raw)
To: Boqun Feng
Cc: mingo, peterz, linux-kernel, pjt, bsegall, morten.rasmussen,
vincent.guittot, dietmar.eggemann, len.brown, rafael.j.wysocki,
fengguang.wu, srikar
On Fri, Jun 19, 2015 at 02:00:38PM +0800, Boqun Feng wrote:
> However, update_cfs_rq_load_avg() only updates cfs_rq->avg, the change
> won't be contributed or aggregated to cfs_rq's parent in the
> for_each_leaf_cfs_rq loop, therefore that's actually not a bottom-up
> update.
>
> To fix this, I think we can add a update_cfs_shares(cfs_rq) after
> update_cfs_rq_load_avg(). Like:
>
> for_each_leaf_cfs_rq(rq, cfs_rq) {
> - /*
> - * Note: We may want to consider periodically releasing
> - * rq->lock about these updates so that creating many task
> - * groups does not result in continually extending hold time.
> - */
> - __update_blocked_averages_cpu(cfs_rq->tg, rq->cpu);
> + /* throttled entities do not contribute to load */
> + if (throttled_hierarchy(cfs_rq))
> + continue;
> +
> + update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq);
> + update_cfs_share(cfs_rq);
> }
>
> However, I think update_cfs_share isn't cheap, because it may do a
> bottom-up update once called. So how about just update the root cfs_rq?
> Like:
>
> - /*
> - * Iterates the task_group tree in a bottom up fashion, see
> - * list_add_leaf_cfs_rq() for details.
> - */
> - for_each_leaf_cfs_rq(rq, cfs_rq) {
> - /*
> - * Note: We may want to consider periodically releasing
> - * rq->lock about these updates so that creating many task
> - * groups does not result in continually extending hold time.
> - */
> - __update_blocked_averages_cpu(cfs_rq->tg, rq->cpu);
> - }
> + update_cfs_rq_load_avg(rq_clock_task(rq), rq->cfs_rq);
Hi Boqun,
Did I get you right:
This rewrite patch does not NEED to aggregate entity's load to cfs_rq,
but rather directly update the cfs_rq's load (both runnable and blocked),
so there is NO NEED to iterate all of the cfs_rqs.
So simply updating the top cfs_rq is already equivalent to the stock.
It is better if we iterate the cfs_rq to update the actually weight
(update_cfs_share), because the weight may have already changed, which
would in turn change the load. But update_cfs_share is not cheap.
Right?
Thanks,
Yuyang
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v8 2/4] sched: Rewrite runnable load and utilization average tracking
2015-06-19 7:57 ` Boqun Feng
@ 2015-06-19 3:11 ` Yuyang Du
2015-06-19 12:22 ` Boqun Feng
0 siblings, 1 reply; 13+ messages in thread
From: Yuyang Du @ 2015-06-19 3:11 UTC (permalink / raw)
To: Boqun Feng
Cc: mingo, peterz, linux-kernel, pjt, bsegall, morten.rasmussen,
vincent.guittot, dietmar.eggemann, len.brown, rafael.j.wysocki,
fengguang.wu, srikar
On Fri, Jun 19, 2015 at 03:57:24PM +0800, Boqun Feng wrote:
> >
> > This rewrite patch does not NEED to aggregate entity's load to cfs_rq,
> > but rather directly update the cfs_rq's load (both runnable and blocked),
> > so there is NO NEED to iterate all of the cfs_rqs.
>
> Actually, I'm not sure whether we NEED to aggregate or NOT.
>
> >
> > So simply updating the top cfs_rq is already equivalent to the stock.
> >
Ok. By aggregate, the rewrite patch does not need it, because the cfs_rq's
load is calculated at once with all its runnable and blocked tasks counted,
assuming the all children's weights are up-to-date, of course. Please refer
to the changelog to get an idea.
>
> The stock does have a bottom up update, so simply updating the top
> cfs_rq is not equivalent to it. Simply updateing the top cfs_rq is
> equivalent to the rewrite patch, because the rewrite patch lacks of the
> aggregation.
It is not the rewrite patch "lacks" aggregation, it is needless. The stock
has to do a bottom-up update and aggregate, because 1) it updates the
load at an entity granularity, 2) the blocked load is separate.
> > It is better if we iterate the cfs_rq to update the actually weight
> > (update_cfs_share), because the weight may have already changed, which
> > would in turn change the load. But update_cfs_share is not cheap.
> >
> > Right?
>
> You get me right for most part ;-)
>
> My points are:
>
> 1. We *may not* need to aggregate entity's load to cfs_rq in
> update_blocked_averages(), simply updating the top cfs_rq may be just
> fine, but I'm not sure, so scheduler experts' insights are needed here.
Then I don't need to say anything about this.
> 2. Whether we need to aggregate or not, the update_blocked_averages() in
> the rewrite patch could be improved. If we need to aggregate, we have to
> add something like update_cfs_shares(). If we don't need, we can just
> replace the loop with one update_cfs_rq_load_avg() on root cfs_rq.
If update_cfs_shares() is done here, it is good, but probably not necessary
though. However, we do need to update_tg_load_avg() here, because if cfs_rq's
load change, the parent tg's load_avg should change too. I will upload a next
version soon.
In addition, an update to the stress + dbench test case:
I have a Core i7, not a Xeon Nehalem, and I have a patch that may not impact
the result. Then, the dbench runs at very low CPU utilization ~1%. Boqun said
this may result from cgroup control, the dbench I/O is low.
Anyway, I can't reproduce the results, the CPU0's util is 92+%, and other CPUs
have ~100% util.
Thanks,
Yuyang
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To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v8 2/4] sched: Rewrite runnable load and utilization average tracking
2015-06-15 19:26 ` [PATCH v8 2/4] " Yuyang Du
@ 2015-06-19 6:00 ` Boqun Feng
2015-06-18 23:05 ` Yuyang Du
0 siblings, 1 reply; 13+ messages in thread
From: Boqun Feng @ 2015-06-19 6:00 UTC (permalink / raw)
To: Yuyang Du
Cc: mingo, peterz, linux-kernel, pjt, bsegall, morten.rasmussen,
vincent.guittot, dietmar.eggemann, arjan.van.de.ven, len.brown,
rafael.j.wysocki, fengguang.wu, srikar
[-- Attachment #1: Type: text/plain, Size: 4296 bytes --]
Hi Yuyang,
On Tue, Jun 16, 2015 at 03:26:05AM +0800, Yuyang Du wrote:
> @@ -5977,36 +5786,6 @@ static void attach_tasks(struct lb_env *env)
> }
>
> #ifdef CONFIG_FAIR_GROUP_SCHED
> -/*
> - * update tg->load_weight by folding this cpu's load_avg
> - */
> -static void __update_blocked_averages_cpu(struct task_group *tg, int cpu)
> -{
> - struct sched_entity *se = tg->se[cpu];
> - struct cfs_rq *cfs_rq = tg->cfs_rq[cpu];
> -
> - /* throttled entities do not contribute to load */
> - if (throttled_hierarchy(cfs_rq))
> - return;
> -
> - update_cfs_rq_blocked_load(cfs_rq, 1);
> -
> - if (se) {
> - update_entity_load_avg(se, 1);
> - /*
> - * We pivot on our runnable average having decayed to zero for
> - * list removal. This generally implies that all our children
> - * have also been removed (modulo rounding error or bandwidth
> - * control); however, such cases are rare and we can fix these
> - * at enqueue.
> - *
> - * TODO: fix up out-of-order children on enqueue.
> - */
> - if (!se->avg.runnable_avg_sum && !cfs_rq->nr_running)
> - list_del_leaf_cfs_rq(cfs_rq);
> - }
> -}
> -
> static void update_blocked_averages(int cpu)
> {
> struct rq *rq = cpu_rq(cpu);
> @@ -6015,17 +5794,17 @@ static void update_blocked_averages(int cpu)
>
> raw_spin_lock_irqsave(&rq->lock, flags);
> update_rq_clock(rq);
> +
> /*
> * Iterates the task_group tree in a bottom up fashion, see
> * list_add_leaf_cfs_rq() for details.
> */
> for_each_leaf_cfs_rq(rq, cfs_rq) {
> - /*
> - * Note: We may want to consider periodically releasing
> - * rq->lock about these updates so that creating many task
> - * groups does not result in continually extending hold time.
> - */
> - __update_blocked_averages_cpu(cfs_rq->tg, rq->cpu);
> + /* throttled entities do not contribute to load */
> + if (throttled_hierarchy(cfs_rq))
> + continue;
> +
> + update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq);
We iterates task_group tree(actually the corresponding cfs_rq tree on
that cpu), because we want to do a bottom-up update. And we want a
bottom-up update, because we want to update the weigthed_cpuload().
__update_blocked_averages_cpu(tg, cpu) does three things:
Let's say:
cfs_rq = tg->cfs_rq[cpu]
se = tg->cfs_rq[cpu]
pcfs_rq = cfs_rq_of(se) ,which is the parent of cfs_rq.
1. update cfs_rq->blocked_load_avg, and its contrib to its task group.
2. update se->avg and calculate the deltas of se->avg.*_avg_contrib.
3. update pcfs_rq->*_load_avg with the deltas in step 2
In this way, __update_blocked_averages_cpu(tg, cpu) can contributes
tg's load changes to its parent. So that update_blocked_averages() can
aggregate all load changes to weighted_cpuload().
However, update_cfs_rq_load_avg() only updates cfs_rq->avg, the change
won't be contributed or aggregated to cfs_rq's parent in the
for_each_leaf_cfs_rq loop, therefore that's actually not a bottom-up
update.
To fix this, I think we can add a update_cfs_shares(cfs_rq) after
update_cfs_rq_load_avg(). Like:
for_each_leaf_cfs_rq(rq, cfs_rq) {
- /*
- * Note: We may want to consider periodically releasing
- * rq->lock about these updates so that creating many task
- * groups does not result in continually extending hold time.
- */
- __update_blocked_averages_cpu(cfs_rq->tg, rq->cpu);
+ /* throttled entities do not contribute to load */
+ if (throttled_hierarchy(cfs_rq))
+ continue;
+
+ update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq);
+ update_cfs_share(cfs_rq);
}
However, I think update_cfs_share isn't cheap, because it may do a
bottom-up update once called. So how about just update the root cfs_rq?
Like:
- /*
- * Iterates the task_group tree in a bottom up fashion, see
- * list_add_leaf_cfs_rq() for details.
- */
- for_each_leaf_cfs_rq(rq, cfs_rq) {
- /*
- * Note: We may want to consider periodically releasing
- * rq->lock about these updates so that creating many task
- * groups does not result in continually extending hold time.
- */
- __update_blocked_averages_cpu(cfs_rq->tg, rq->cpu);
- }
+ update_cfs_rq_load_avg(rq_clock_task(rq), rq->cfs_rq);
Thanks and Best Regards,
Boqun
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v8 2/4] sched: Rewrite runnable load and utilization average tracking
2015-06-18 23:05 ` Yuyang Du
@ 2015-06-19 7:57 ` Boqun Feng
2015-06-19 3:11 ` Yuyang Du
0 siblings, 1 reply; 13+ messages in thread
From: Boqun Feng @ 2015-06-19 7:57 UTC (permalink / raw)
To: Yuyang Du
Cc: mingo, peterz, linux-kernel, pjt, bsegall, morten.rasmussen,
vincent.guittot, dietmar.eggemann, len.brown, rafael.j.wysocki,
fengguang.wu, srikar
[-- Attachment #1: Type: text/plain, Size: 3354 bytes --]
Hi Yuyang,
On Fri, Jun 19, 2015 at 07:05:54AM +0800, Yuyang Du wrote:
> On Fri, Jun 19, 2015 at 02:00:38PM +0800, Boqun Feng wrote:
> > However, update_cfs_rq_load_avg() only updates cfs_rq->avg, the change
> > won't be contributed or aggregated to cfs_rq's parent in the
> > for_each_leaf_cfs_rq loop, therefore that's actually not a bottom-up
> > update.
> >
> > To fix this, I think we can add a update_cfs_shares(cfs_rq) after
> > update_cfs_rq_load_avg(). Like:
> >
> > for_each_leaf_cfs_rq(rq, cfs_rq) {
> > - /*
> > - * Note: We may want to consider periodically releasing
> > - * rq->lock about these updates so that creating many task
> > - * groups does not result in continually extending hold time.
> > - */
> > - __update_blocked_averages_cpu(cfs_rq->tg, rq->cpu);
> > + /* throttled entities do not contribute to load */
> > + if (throttled_hierarchy(cfs_rq))
> > + continue;
> > +
> > + update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq);
> > + update_cfs_share(cfs_rq);
> > }
> >
> > However, I think update_cfs_share isn't cheap, because it may do a
> > bottom-up update once called. So how about just update the root cfs_rq?
> > Like:
> >
> > - /*
> > - * Iterates the task_group tree in a bottom up fashion, see
> > - * list_add_leaf_cfs_rq() for details.
> > - */
> > - for_each_leaf_cfs_rq(rq, cfs_rq) {
> > - /*
> > - * Note: We may want to consider periodically releasing
> > - * rq->lock about these updates so that creating many task
> > - * groups does not result in continually extending hold time.
> > - */
> > - __update_blocked_averages_cpu(cfs_rq->tg, rq->cpu);
> > - }
> > + update_cfs_rq_load_avg(rq_clock_task(rq), rq->cfs_rq);
>
> Hi Boqun,
>
> Did I get you right:
>
> This rewrite patch does not NEED to aggregate entity's load to cfs_rq,
> but rather directly update the cfs_rq's load (both runnable and blocked),
> so there is NO NEED to iterate all of the cfs_rqs.
Actually, I'm not sure whether we NEED to aggregate or NOT.
>
> So simply updating the top cfs_rq is already equivalent to the stock.
>
The stock does have a bottom up update, so simply updating the top
cfs_rq is not equivalent to it. Simply updateing the top cfs_rq is
equivalent to the rewrite patch, because the rewrite patch lacks of the
aggregation.
> It is better if we iterate the cfs_rq to update the actually weight
> (update_cfs_share), because the weight may have already changed, which
> would in turn change the load. But update_cfs_share is not cheap.
>
> Right?
You get me right for most part ;-)
My points are:
1. We *may not* need to aggregate entity's load to cfs_rq in
update_blocked_averages(), simply updating the top cfs_rq may be just
fine, but I'm not sure, so scheduler experts' insights are needed here.
2. Whether we need to aggregate or not, the update_blocked_averages() in
the rewrite patch could be improved. If we need to aggregate, we have to
add something like update_cfs_shares(). If we don't need, we can just
replace the loop with one update_cfs_rq_load_avg() on root cfs_rq.
I think we'd better to figure out the "may not" part in point 1 first to
get a reasonable implemenation of update_blocked_averages().
Is that clear now?
Thanks and Best Regards,
Boqun
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v8 2/4] sched: Rewrite runnable load and utilization average tracking
2015-06-19 3:11 ` Yuyang Du
@ 2015-06-19 12:22 ` Boqun Feng
2015-06-21 22:43 ` Yuyang Du
0 siblings, 1 reply; 13+ messages in thread
From: Boqun Feng @ 2015-06-19 12:22 UTC (permalink / raw)
To: Yuyang Du
Cc: mingo, peterz, linux-kernel, pjt, bsegall, morten.rasmussen,
vincent.guittot, dietmar.eggemann, len.brown, rafael.j.wysocki,
fengguang.wu, srikar
[-- Attachment #1: Type: text/plain, Size: 3839 bytes --]
Hi Yuyang,
On Fri, Jun 19, 2015 at 11:11:16AM +0800, Yuyang Du wrote:
> On Fri, Jun 19, 2015 at 03:57:24PM +0800, Boqun Feng wrote:
> > >
> > > This rewrite patch does not NEED to aggregate entity's load to cfs_rq,
> > > but rather directly update the cfs_rq's load (both runnable and blocked),
> > > so there is NO NEED to iterate all of the cfs_rqs.
> >
> > Actually, I'm not sure whether we NEED to aggregate or NOT.
> >
> > >
> > > So simply updating the top cfs_rq is already equivalent to the stock.
> > >
>
> Ok. By aggregate, the rewrite patch does not need it, because the cfs_rq's
> load is calculated at once with all its runnable and blocked tasks counted,
> assuming the all children's weights are up-to-date, of course. Please refer
> to the changelog to get an idea.
>
> >
> > The stock does have a bottom up update, so simply updating the top
> > cfs_rq is not equivalent to it. Simply updateing the top cfs_rq is
> > equivalent to the rewrite patch, because the rewrite patch lacks of the
> > aggregation.
>
> It is not the rewrite patch "lacks" aggregation, it is needless. The stock
> has to do a bottom-up update and aggregate, because 1) it updates the
> load at an entity granularity, 2) the blocked load is separate.
Yep, you are right, the aggregation is not necessary.
Let me see if I understand you, in the rewrite, when we
update_cfs_rq_load_avg() we need neither to aggregate child's load_avg,
nor to update cfs_rq->load.weight. Because:
1) For the load before cfs_rq->last_update_time, it's already in the
->load_avg, and decay will do the job.
2) For the load from cfs_rq->last_update_time to now, we calculate
with cfs_rq->load.weight, and the weight should be weight at
->last_update_time rather than now.
Right?
>
> > > It is better if we iterate the cfs_rq to update the actually weight
> > > (update_cfs_share), because the weight may have already changed, which
> > > would in turn change the load. But update_cfs_share is not cheap.
> > >
> > > Right?
> >
> > You get me right for most part ;-)
> >
> > My points are:
> >
> > 1. We *may not* need to aggregate entity's load to cfs_rq in
> > update_blocked_averages(), simply updating the top cfs_rq may be just
> > fine, but I'm not sure, so scheduler experts' insights are needed here.
>
> Then I don't need to say anything about this.
>
> > 2. Whether we need to aggregate or not, the update_blocked_averages() in
> > the rewrite patch could be improved. If we need to aggregate, we have to
> > add something like update_cfs_shares(). If we don't need, we can just
> > replace the loop with one update_cfs_rq_load_avg() on root cfs_rq.
>
> If update_cfs_shares() is done here, it is good, but probably not necessary
> though. However, we do need to update_tg_load_avg() here, because if cfs_rq's
We may have another problem even we udpate_tg_load_avg(), because after
the loop, for each cfs_rq, ->load.weight is not up-to-date, right? So
next time before we update_cfs_rq_load_avg(), we need to guarantee that
the cfs_rq->load.weight is already updated, right? And IMO, we don't
have that guarantee yet, do we?
> load change, the parent tg's load_avg should change too. I will upload a next
> version soon.
>
> In addition, an update to the stress + dbench test case:
>
> I have a Core i7, not a Xeon Nehalem, and I have a patch that may not impact
> the result. Then, the dbench runs at very low CPU utilization ~1%. Boqun said
> this may result from cgroup control, the dbench I/O is low.
>
> Anyway, I can't reproduce the results, the CPU0's util is 92+%, and other CPUs
> have ~100% util.
Thank you for looking into that problem, and I will test with your new
version of patch ;-)
Thanks,
Boqun
>
> Thanks,
> Yuyang
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v8 2/4] sched: Rewrite runnable load and utilization average tracking
2015-06-19 12:22 ` Boqun Feng
@ 2015-06-21 22:43 ` Yuyang Du
0 siblings, 0 replies; 13+ messages in thread
From: Yuyang Du @ 2015-06-21 22:43 UTC (permalink / raw)
To: Boqun Feng
Cc: mingo, peterz, linux-kernel, pjt, bsegall, morten.rasmussen,
vincent.guittot, dietmar.eggemann, len.brown, rafael.j.wysocki,
fengguang.wu, srikar
On Fri, Jun 19, 2015 at 08:22:07PM +0800, Boqun Feng wrote:
> > It is not the rewrite patch "lacks" aggregation, it is needless. The stock
> > has to do a bottom-up update and aggregate, because 1) it updates the
> > load at an entity granularity, 2) the blocked load is separate.
>
> Yep, you are right, the aggregation is not necessary.
>
> Let me see if I understand you, in the rewrite, when we
> update_cfs_rq_load_avg() we need neither to aggregate child's load_avg,
> nor to update cfs_rq->load.weight. Because:
>
> 1) For the load before cfs_rq->last_update_time, it's already in the
> ->load_avg, and decay will do the job.
> 2) For the load from cfs_rq->last_update_time to now, we calculate
> with cfs_rq->load.weight, and the weight should be weight at
> ->last_update_time rather than now.
>
> Right?
Yes.
> > If update_cfs_shares() is done here, it is good, but probably not necessary
> > though. However, we do need to update_tg_load_avg() here, because if cfs_rq's
>
> We may have another problem even we udpate_tg_load_avg(), because after
> the loop, for each cfs_rq, ->load.weight is not up-to-date, right? So
> next time before we update_cfs_rq_load_avg(), we need to guarantee that
> the cfs_rq->load.weight is already updated, right? And IMO, we don't
> have that guarantee yet, do we?
If we update weight, we must update load_avg. But if we update load_avg, we may need
to update weight. Yes, your comment here is valid, but we already update the shares
as needed in the cases when they are "active", update_blocked_averages() is
largely for inactive group entities, so we should be fine here.
> > load change, the parent tg's load_avg should change too. I will upload a next
> > version soon.
> >
> > In addition, an update to the stress + dbench test case:
> >
> > I have a Core i7, not a Xeon Nehalem, and I have a patch that may not impact
> > the result. Then, the dbench runs at very low CPU utilization ~1%. Boqun said
> > this may result from cgroup control, the dbench I/O is low.
> >
> > Anyway, I can't reproduce the results, the CPU0's util is 92+%, and other CPUs
> > have ~100% util.
>
> Thank you for looking into that problem, and I will test with your new
> version of patch ;-)
That would be good. I played the dbench "as is", and its output looks pretty fine.
Thanks,
Yuyang
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^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2015-06-22 6:35 UTC | newest]
Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
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[not found] ` <1432518587-114210-3-git-send-email-yuyang.du@intel.com>
2015-05-26 16:06 ` [PATCH v8 2/4] sched: Rewrite runnable load and utilization average tracking Vincent Guittot
2015-05-27 22:36 ` Yuyang Du
2015-06-02 0:25 ` [PATCH v8 0/4] " Yuyang Du
2015-06-09 1:21 ` Yuyang Du
2015-06-15 10:38 ` Boqun Feng
2015-06-15 18:46 ` Yuyang Du
2015-06-15 19:26 [Resend PATCH " Yuyang Du
2015-06-15 19:26 ` [PATCH v8 2/4] " Yuyang Du
2015-06-19 6:00 ` Boqun Feng
2015-06-18 23:05 ` Yuyang Du
2015-06-19 7:57 ` Boqun Feng
2015-06-19 3:11 ` Yuyang Du
2015-06-19 12:22 ` Boqun Feng
2015-06-21 22:43 ` Yuyang Du
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