From: Fengguang Wu <fengguang.wu@intel.com>
To: lkp@lists.01.org
Subject: Re: [sched/fair] caeb178c60f: +252.0% cpuidle.C1-SNB.time, +3.1% turbostat.Pkg_W
Date: Thu, 21 Aug 2014 23:00:50 +0800 [thread overview]
Message-ID: <20140821150050.GA22665@localhost> (raw)
In-Reply-To: <53F5FF2D.4010406@redhat.com>
[-- Attachment #1: Type: text/plain, Size: 15527 bytes --]
On Thu, Aug 21, 2014 at 10:16:13AM -0400, Rik van Riel wrote:
> On 08/21/2014 10:01 AM, Fengguang Wu wrote:
> > Hi Rik,
> >
> > FYI, we noticed the below changes on
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core
> > commit caeb178c60f4f93f1b45c0bc056b5cf6d217b67f ("sched/fair: Make update_sd_pick_busiest() return 'true' on a busier sd")
> >
> > testbox/testcase/testparams: lkp-sb03/nepim/300s-100%-tcp6
>
> Is this good or bad?
It seems mixed results. The throughput is 2.4% better in sequential
write test, while the power consumption (turbostat.Pkg_W) increases
by 3.1% in the nepim/300s-100%-tcp test.
> The numbers suggest the xfs + raid5 workload is doing around 2.4%
> more IO to disk per second with this change in, and there is more
Right.
> CPU idle time in the system...
Sorry "cpuidle" is the monitor name. You can find its code here:
https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/tree/monitors/cpuidle
"cpuidle.C1-SNB.time" means the time spend in C1 state.
> For the tcp test, I see no throughput numbers, but I see more
> idle time as well as more time in turbo mode, and more softirqs,
> which could mean that more packets were handled.
Again, "turbostat" is a monitor name. "turbostat.Pkg_W" means the
CPU package watts reported by the turbostat tool.
> Does the patch introduce any performance issues, or did it
> simply trip up something in the statistics that your script
> noticed?
In normal LKP reports, only changed stats are listed. Here is the
performance/power index comparison, which lists all performance/power
related stats. The index is geometric average of all results. Baseline
is 100 for 743cb1ff191f00f.
100 perf-index (the larger, the better)
98 power-index (the larger, the better)
743cb1ff191f00f caeb178c60f4f93f1b45c0bc0 testbox/testcase/testparams
--------------- ------------------------- ---------------------------
%stddev %change %stddev
\ | /
691053 ± 4% -5.1% 656100 ± 4% lkp-sb03/nepim/300s-100%-tcp
570185 ± 7% +5.4% 600774 ± 4% lkp-sb03/nepim/300s-100%-tcp6
1261238 ± 5% -0.3% 1256875 ± 4% TOTAL nepim.tcp.avg.kbps_in
743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
--------------- -------------------------
691216 ± 4% -5.1% 656264 ± 4% lkp-sb03/nepim/300s-100%-tcp
570347 ± 7% +5.4% 600902 ± 4% lkp-sb03/nepim/300s-100%-tcp6
1261564 ± 5% -0.3% 1257167 ± 4% TOTAL nepim.tcp.avg.kbps_out
743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
--------------- -------------------------
77.48 ± 1% +3.1% 79.91 ± 1% lkp-sb03/nepim/300s-100%-tcp
79.69 ± 2% -0.6% 79.21 ± 1% lkp-sb03/nepim/300s-100%-tcp6
157.17 ± 2% +1.2% 159.13 ± 1% TOTAL turbostat.Pkg_W
743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
--------------- -------------------------
6.05 ± 1% +1.2% 6.12 ± 1% lkp-sb03/nepim/300s-100%-tcp
6.06 ± 0% +1.0% 6.12 ± 1% lkp-sb03/nepim/300s-100%-tcp6
12.11 ± 1% +1.1% 12.24 ± 1% TOTAL turbostat.%c0
743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
--------------- -------------------------
325759 ± 0% +2.4% 333577 ± 0% lkp-st02/dd-write/5m-11HDD-RAID5-cfq-xfs-1dd
325759 ± 0% +2.4% 333577 ± 0% TOTAL iostat.md0.wkB/s
The nepim throughput numbers are not stable enough comparing to the
change, so are not regarded as real changes in the original email.
I will need to increase its test time to make it more stable..
Thanks,
Fengguang
> > 743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
> > --------------- -------------------------
> > 29718911 ±45% +329.5% 1.277e+08 ±10% cpuidle.C1E-SNB.time
> > 861 ±34% +1590.4% 14564 ±31% cpuidle.C3-SNB.usage
> > 1.65e+08 ±20% +175.4% 4.544e+08 ±15% cpuidle.C1-SNB.time
> > 24 ±41% +247.6% 86 ±23% numa-numastat.node1.other_node
> > 27717 ±11% +98.7% 55085 ± 6% softirqs.RCU
> > 180767 ±11% +86.7% 337416 ±10% cpuidle.C7-SNB.usage
> > 104591 ±14% +77.4% 185581 ±10% cpuidle.C1E-SNB.usage
> > 384 ±10% +33.3% 512 ±11% slabinfo.kmem_cache.num_objs
> > 384 ±10% +33.3% 512 ±11% slabinfo.kmem_cache.active_objs
> > 494 ± 8% +25.9% 622 ± 9% slabinfo.kmem_cache_node.active_objs
> > 512 ± 7% +25.0% 640 ± 8% slabinfo.kmem_cache_node.num_objs
> > 83427 ± 6% +10.3% 92028 ± 5% meminfo.DirectMap4k
> > 9508 ± 1% +21.3% 11534 ± 7% slabinfo.kmalloc-512.active_objs
> > 9838 ± 1% +20.5% 11852 ± 6% slabinfo.kmalloc-512.num_objs
> > 53997 ± 6% +11.1% 59981 ± 4% numa-meminfo.node1.Slab
> > 2662 ± 3% -9.0% 2424 ± 3% slabinfo.kmalloc-96.active_objs
> > 2710 ± 3% -8.6% 2478 ± 3% slabinfo.kmalloc-96.num_objs
> > 921 ±41% +3577.7% 33901 ±14% time.involuntary_context_switches
> > 2371 ± 2% +15.5% 2739 ± 2% vmstat.system.in
> >
> > testbox/testcase/testparams: lkp-sb03/nepim/300s-100%-tcp
> >
> > 743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
> > --------------- -------------------------
> > 20657207 ±31% +358.2% 94650352 ±18% cpuidle.C1E-SNB.time
> > 29718911 ±45% +329.5% 1.277e+08 ±10% cpuidle.C1E-SNB.time
> > 861 ±34% +1590.4% 14564 ±31% cpuidle.C3-SNB.usage
> > 0.05 ±46% +812.5% 0.44 ±34% turbostat.%c3
> > 1.12e+08 ±25% +364.8% 5.207e+08 ±15% cpuidle.C1-SNB.time
> > 1.65e+08 ±20% +175.4% 4.544e+08 ±15% cpuidle.C1-SNB.time
> > 35 ±19% +105.6% 72 ±28% numa-numastat.node1.other_node
> > 24 ±41% +247.6% 86 ±23% numa-numastat.node1.other_node
> > 43 ±22% +86.2% 80 ±26% numa-vmstat.node0.nr_dirtied
> > 24576 ± 6% +113.9% 52574 ± 1% softirqs.RCU
> > 27717 ±11% +98.7% 55085 ± 6% softirqs.RCU
> > 211533 ± 6% +58.4% 334990 ± 8% cpuidle.C7-SNB.usage
> > 180767 ±11% +86.7% 337416 ±10% cpuidle.C7-SNB.usage
> > 77739 ±13% +52.9% 118876 ±18% cpuidle.C1E-SNB.usage
> > 104591 ±14% +77.4% 185581 ±10% cpuidle.C1E-SNB.usage
> > 32.09 ±14% -24.8% 24.12 ±18% turbostat.%pc2
> > 9.04 ± 6% +41.6% 12.80 ± 6% turbostat.%c1
> > 384 ±10% +33.3% 512 ±11% slabinfo.kmem_cache.num_objs
> > 384 ±10% +33.3% 512 ±11% slabinfo.kmem_cache.active_objs
> > 494 ± 8% +25.9% 622 ± 9% slabinfo.kmem_cache_node.active_objs
> > 512 ± 7% +25.0% 640 ± 8% slabinfo.kmem_cache_node.num_objs
> > 379 ± 9% +16.7% 443 ± 7% numa-vmstat.node0.nr_page_table_pages
> > 83427 ± 6% +10.3% 92028 ± 5% meminfo.DirectMap4k
> > 1579 ± 6% -15.3% 1338 ± 7% numa-meminfo.node1.PageTables
> > 394 ± 6% -15.1% 334 ± 7% numa-vmstat.node1.nr_page_table_pages
> > 1509 ± 7% +16.6% 1760 ± 7% numa-meminfo.node0.PageTables
> > 12681 ± 1% -17.3% 10482 ±14% numa-meminfo.node1.AnonPages
> > 3169 ± 1% -17.3% 2620 ±14% numa-vmstat.node1.nr_anon_pages
> > 10171 ± 3% +10.9% 11283 ± 3% slabinfo.kmalloc-512.active_objs
> > 9508 ± 1% +21.3% 11534 ± 7% slabinfo.kmalloc-512.active_objs
> > 10481 ± 3% +10.9% 11620 ± 3% slabinfo.kmalloc-512.num_objs
> > 9838 ± 1% +20.5% 11852 ± 6% slabinfo.kmalloc-512.num_objs
> > 53997 ± 6% +11.1% 59981 ± 4% numa-meminfo.node1.Slab
> > 5072 ± 1% +11.6% 5662 ± 3% slabinfo.kmalloc-2048.num_objs
> > 4974 ± 1% +11.6% 5551 ± 3% slabinfo.kmalloc-2048.active_objs
> > 12824 ± 2% -16.1% 10754 ±14% numa-meminfo.node1.Active(anon)
> > 3205 ± 2% -16.2% 2687 ±14% numa-vmstat.node1.nr_active_anon
> > 2662 ± 3% -9.0% 2424 ± 3% slabinfo.kmalloc-96.active_objs
> > 2710 ± 3% -8.6% 2478 ± 3% slabinfo.kmalloc-96.num_objs
> > 15791 ± 1% +15.2% 18192 ± 9% numa-meminfo.node0.AnonPages
> > 3949 ± 1% +15.2% 4549 ± 9% numa-vmstat.node0.nr_anon_pages
> > 13669 ± 1% -7.5% 12645 ± 2% slabinfo.kmalloc-16.num_objs
> > 662 ±23% +4718.6% 31918 ±12% time.involuntary_context_switches
> > 921 ±41% +3577.7% 33901 ±14% time.involuntary_context_switches
> > 2463 ± 1% +13.1% 2786 ± 3% vmstat.system.in
> > 2371 ± 2% +15.5% 2739 ± 2% vmstat.system.in
> > 49.40 ± 2% +4.8% 51.79 ± 2% turbostat.Cor_W
> > 77.48 ± 1% +3.1% 79.91 ± 1% turbostat.Pkg_W
> >
> > testbox/testcase/testparams: lkp-st02/dd-write/5m-11HDD-RAID5-cfq-xfs-1dd
> >
> > 743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
> > --------------- -------------------------
> > 18571 ± 7% +31.4% 24396 ± 4% proc-vmstat.pgscan_direct_normal
> > 39983 ± 2% +38.3% 55286 ± 0% perf-stat.cpu-migrations
> > 4193962 ± 2% +20.9% 5072009 ± 3% perf-stat.iTLB-load-misses
> > 4.568e+09 ± 2% -17.2% 3.781e+09 ± 1% perf-stat.L1-icache-load-misses
> > 1.762e+10 ± 0% -7.8% 1.625e+10 ± 1% perf-stat.cache-references
> > 1.408e+09 ± 1% -6.6% 1.315e+09 ± 1% perf-stat.branch-load-misses
> > 1.407e+09 ± 1% -6.5% 1.316e+09 ± 1% perf-stat.branch-misses
> > 6.839e+09 ± 1% +5.0% 7.185e+09 ± 2% perf-stat.LLC-loads
> > 1.558e+10 ± 0% +3.5% 1.612e+10 ± 1% perf-stat.L1-dcache-load-misses
> > 1.318e+12 ± 0% +3.4% 1.363e+12 ± 0% perf-stat.L1-icache-loads
> > 2.979e+10 ± 1% +2.4% 3.051e+10 ± 0% perf-stat.L1-dcache-store-misses
> > 1.893e+11 ± 0% +2.5% 1.94e+11 ± 0% perf-stat.branch-instructions
> > 2.298e+11 ± 0% +2.7% 2.361e+11 ± 0% perf-stat.L1-dcache-stores
> > 1.016e+12 ± 0% +2.6% 1.042e+12 ± 0% perf-stat.instructions
> > 1.892e+11 ± 0% +2.5% 1.94e+11 ± 0% perf-stat.branch-loads
> > 3.71e+11 ± 0% +2.4% 3.799e+11 ± 0% perf-stat.dTLB-loads
> > 3.711e+11 ± 0% +2.3% 3.798e+11 ± 0% perf-stat.L1-dcache-loads
> > 325768 ± 0% +2.7% 334461 ± 0% vmstat.io.bo
> > 8083 ± 0% +2.4% 8278 ± 0% iostat.sdf.wrqm/s
> > 8083 ± 0% +2.4% 8278 ± 0% iostat.sdk.wrqm/s
> > 8082 ± 0% +2.4% 8276 ± 0% iostat.sdg.wrqm/s
> > 32615 ± 0% +2.4% 33398 ± 0% iostat.sdf.wkB/s
> > 32617 ± 0% +2.4% 33401 ± 0% iostat.sdk.wkB/s
> > 32612 ± 0% +2.4% 33393 ± 0% iostat.sdg.wkB/s
> > 8083 ± 0% +2.4% 8277 ± 0% iostat.sdl.wrqm/s
> > 8083 ± 0% +2.4% 8276 ± 0% iostat.sdi.wrqm/s
> > 8082 ± 0% +2.4% 8277 ± 0% iostat.sdc.wrqm/s
> > 32614 ± 0% +2.4% 33396 ± 0% iostat.sdl.wkB/s
> > 8083 ± 0% +2.4% 8278 ± 0% iostat.sde.wrqm/s
> > 8082 ± 0% +2.4% 8277 ± 0% iostat.sdh.wrqm/s
> > 8083 ± 0% +2.4% 8277 ± 0% iostat.sdd.wrqm/s
> > 32614 ± 0% +2.4% 33393 ± 0% iostat.sdi.wkB/s
> > 32611 ± 0% +2.4% 33395 ± 0% iostat.sdc.wkB/s
> > 325759 ± 0% +2.4% 333577 ± 0% iostat.md0.wkB/s
> > 1274 ± 0% +2.4% 1305 ± 0% iostat.md0.w/s
> > 8082 ± 0% +2.4% 8277 ± 0% iostat.sdb.wrqm/s
> > 32618 ± 0% +2.4% 33398 ± 0% iostat.sde.wkB/s
> > 32612 ± 0% +2.4% 33395 ± 0% iostat.sdh.wkB/s
> > 32618 ± 0% +2.4% 33397 ± 0% iostat.sdd.wkB/s
> > 8084 ± 0% +2.4% 8278 ± 0% iostat.sdj.wrqm/s
> > 32611 ± 0% +2.4% 33396 ± 0% iostat.sdb.wkB/s
> > 32618 ± 0% +2.4% 33400 ± 0% iostat.sdj.wkB/s
> > 2.3e+11 ± 0% +2.5% 2.357e+11 ± 0% perf-stat.dTLB-stores
> > 4898 ± 0% +2.1% 5003 ± 0% vmstat.system.cs
> > 1.017e+12 ± 0% +2.4% 1.042e+12 ± 0% perf-stat.iTLB-loads
> > 1518279 ± 0% +2.1% 1549457 ± 0% perf-stat.context-switches
> > 1.456e+12 ± 0% +1.4% 1.476e+12 ± 0% perf-stat.cpu-cycles
> > 1.456e+12 ± 0% +1.3% 1.475e+12 ± 0% perf-stat.ref-cycles
> > 1.819e+11 ± 0% +1.3% 1.843e+11 ± 0% perf-stat.bus-cycles
> >
> > lkp-sb03 is a Sandy Bridge-EP server.
> > Memory: 64G
> > Architecture: x86_64
> > CPU op-mode(s): 32-bit, 64-bit
> > Byte Order: Little Endian
> > CPU(s): 32
> > On-line CPU(s) list: 0-31
> > Thread(s) per core: 2
> > Core(s) per socket: 8
> > Socket(s): 2
> > NUMA node(s): 2
> > Vendor ID: GenuineIntel
> > CPU family: 6
> > Model: 45
> > Stepping: 6
> > CPU MHz: 3500.613
> > BogoMIPS: 5391.16
> > Virtualization: VT-x
> > L1d cache: 32K
> > L1i cache: 32K
> > L2 cache: 256K
> > L3 cache: 20480K
> > NUMA node0 CPU(s): 0-7,16-23
> > NUMA node1 CPU(s): 8-15,24-31
> >
> > lkp-st02 is Core2
> > Memory: 8G
> >
> >
> >
> >
> > time.involuntary_context_switches
> >
> > 40000 O+------------------------------------------------------------------+
> > | O O O |
> > 35000 ++O O O O O O |
> > 30000 ++ O O O |
> > | O O O |
> > 25000 ++ O O |
> > | |
> > 20000 ++ |
> > | |
> > 15000 ++ |
> > 10000 ++ |
> > | |
> > 5000 ++ |
> > | .*. |
> > 0 *+*--*-*-*-*--*-*-*-*--*-*-*-*--*-*-*--*-*-*-*--*---*-*--*-*-*-*--*-*
> >
> >
> > [*] bisect-good sample
> > [O] bisect-bad sample
> >
> >
> > Disclaimer:
> > Results have been estimated based on internal Intel analysis and are provided
> > for informational purposes only. Any difference in system hardware or software
> > design or configuration may affect actual performance.
> >
> > Thanks,
> > Fengguang
> >
WARNING: multiple messages have this Message-ID (diff)
From: Fengguang Wu <fengguang.wu@intel.com>
To: Rik van Riel <riel@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
lkp@01.org, Ingo Molnar <mingo@elte.hu>
Subject: Re: [sched/fair] caeb178c60f: +252.0% cpuidle.C1-SNB.time, +3.1% turbostat.Pkg_W
Date: Thu, 21 Aug 2014 23:00:50 +0800 [thread overview]
Message-ID: <20140821150050.GA22665@localhost> (raw)
In-Reply-To: <53F5FF2D.4010406@redhat.com>
On Thu, Aug 21, 2014 at 10:16:13AM -0400, Rik van Riel wrote:
> On 08/21/2014 10:01 AM, Fengguang Wu wrote:
> > Hi Rik,
> >
> > FYI, we noticed the below changes on
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core
> > commit caeb178c60f4f93f1b45c0bc056b5cf6d217b67f ("sched/fair: Make update_sd_pick_busiest() return 'true' on a busier sd")
> >
> > testbox/testcase/testparams: lkp-sb03/nepim/300s-100%-tcp6
>
> Is this good or bad?
It seems mixed results. The throughput is 2.4% better in sequential
write test, while the power consumption (turbostat.Pkg_W) increases
by 3.1% in the nepim/300s-100%-tcp test.
> The numbers suggest the xfs + raid5 workload is doing around 2.4%
> more IO to disk per second with this change in, and there is more
Right.
> CPU idle time in the system...
Sorry "cpuidle" is the monitor name. You can find its code here:
https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/tree/monitors/cpuidle
"cpuidle.C1-SNB.time" means the time spend in C1 state.
> For the tcp test, I see no throughput numbers, but I see more
> idle time as well as more time in turbo mode, and more softirqs,
> which could mean that more packets were handled.
Again, "turbostat" is a monitor name. "turbostat.Pkg_W" means the
CPU package watts reported by the turbostat tool.
> Does the patch introduce any performance issues, or did it
> simply trip up something in the statistics that your script
> noticed?
In normal LKP reports, only changed stats are listed. Here is the
performance/power index comparison, which lists all performance/power
related stats. The index is geometric average of all results. Baseline
is 100 for 743cb1ff191f00f.
100 perf-index (the larger, the better)
98 power-index (the larger, the better)
743cb1ff191f00f caeb178c60f4f93f1b45c0bc0 testbox/testcase/testparams
--------------- ------------------------- ---------------------------
%stddev %change %stddev
\ | /
691053 ± 4% -5.1% 656100 ± 4% lkp-sb03/nepim/300s-100%-tcp
570185 ± 7% +5.4% 600774 ± 4% lkp-sb03/nepim/300s-100%-tcp6
1261238 ± 5% -0.3% 1256875 ± 4% TOTAL nepim.tcp.avg.kbps_in
743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
--------------- -------------------------
691216 ± 4% -5.1% 656264 ± 4% lkp-sb03/nepim/300s-100%-tcp
570347 ± 7% +5.4% 600902 ± 4% lkp-sb03/nepim/300s-100%-tcp6
1261564 ± 5% -0.3% 1257167 ± 4% TOTAL nepim.tcp.avg.kbps_out
743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
--------------- -------------------------
77.48 ± 1% +3.1% 79.91 ± 1% lkp-sb03/nepim/300s-100%-tcp
79.69 ± 2% -0.6% 79.21 ± 1% lkp-sb03/nepim/300s-100%-tcp6
157.17 ± 2% +1.2% 159.13 ± 1% TOTAL turbostat.Pkg_W
743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
--------------- -------------------------
6.05 ± 1% +1.2% 6.12 ± 1% lkp-sb03/nepim/300s-100%-tcp
6.06 ± 0% +1.0% 6.12 ± 1% lkp-sb03/nepim/300s-100%-tcp6
12.11 ± 1% +1.1% 12.24 ± 1% TOTAL turbostat.%c0
743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
--------------- -------------------------
325759 ± 0% +2.4% 333577 ± 0% lkp-st02/dd-write/5m-11HDD-RAID5-cfq-xfs-1dd
325759 ± 0% +2.4% 333577 ± 0% TOTAL iostat.md0.wkB/s
The nepim throughput numbers are not stable enough comparing to the
change, so are not regarded as real changes in the original email.
I will need to increase its test time to make it more stable..
Thanks,
Fengguang
> > 743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
> > --------------- -------------------------
> > 29718911 ±45% +329.5% 1.277e+08 ±10% cpuidle.C1E-SNB.time
> > 861 ±34% +1590.4% 14564 ±31% cpuidle.C3-SNB.usage
> > 1.65e+08 ±20% +175.4% 4.544e+08 ±15% cpuidle.C1-SNB.time
> > 24 ±41% +247.6% 86 ±23% numa-numastat.node1.other_node
> > 27717 ±11% +98.7% 55085 ± 6% softirqs.RCU
> > 180767 ±11% +86.7% 337416 ±10% cpuidle.C7-SNB.usage
> > 104591 ±14% +77.4% 185581 ±10% cpuidle.C1E-SNB.usage
> > 384 ±10% +33.3% 512 ±11% slabinfo.kmem_cache.num_objs
> > 384 ±10% +33.3% 512 ±11% slabinfo.kmem_cache.active_objs
> > 494 ± 8% +25.9% 622 ± 9% slabinfo.kmem_cache_node.active_objs
> > 512 ± 7% +25.0% 640 ± 8% slabinfo.kmem_cache_node.num_objs
> > 83427 ± 6% +10.3% 92028 ± 5% meminfo.DirectMap4k
> > 9508 ± 1% +21.3% 11534 ± 7% slabinfo.kmalloc-512.active_objs
> > 9838 ± 1% +20.5% 11852 ± 6% slabinfo.kmalloc-512.num_objs
> > 53997 ± 6% +11.1% 59981 ± 4% numa-meminfo.node1.Slab
> > 2662 ± 3% -9.0% 2424 ± 3% slabinfo.kmalloc-96.active_objs
> > 2710 ± 3% -8.6% 2478 ± 3% slabinfo.kmalloc-96.num_objs
> > 921 ±41% +3577.7% 33901 ±14% time.involuntary_context_switches
> > 2371 ± 2% +15.5% 2739 ± 2% vmstat.system.in
> >
> > testbox/testcase/testparams: lkp-sb03/nepim/300s-100%-tcp
> >
> > 743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
> > --------------- -------------------------
> > 20657207 ±31% +358.2% 94650352 ±18% cpuidle.C1E-SNB.time
> > 29718911 ±45% +329.5% 1.277e+08 ±10% cpuidle.C1E-SNB.time
> > 861 ±34% +1590.4% 14564 ±31% cpuidle.C3-SNB.usage
> > 0.05 ±46% +812.5% 0.44 ±34% turbostat.%c3
> > 1.12e+08 ±25% +364.8% 5.207e+08 ±15% cpuidle.C1-SNB.time
> > 1.65e+08 ±20% +175.4% 4.544e+08 ±15% cpuidle.C1-SNB.time
> > 35 ±19% +105.6% 72 ±28% numa-numastat.node1.other_node
> > 24 ±41% +247.6% 86 ±23% numa-numastat.node1.other_node
> > 43 ±22% +86.2% 80 ±26% numa-vmstat.node0.nr_dirtied
> > 24576 ± 6% +113.9% 52574 ± 1% softirqs.RCU
> > 27717 ±11% +98.7% 55085 ± 6% softirqs.RCU
> > 211533 ± 6% +58.4% 334990 ± 8% cpuidle.C7-SNB.usage
> > 180767 ±11% +86.7% 337416 ±10% cpuidle.C7-SNB.usage
> > 77739 ±13% +52.9% 118876 ±18% cpuidle.C1E-SNB.usage
> > 104591 ±14% +77.4% 185581 ±10% cpuidle.C1E-SNB.usage
> > 32.09 ±14% -24.8% 24.12 ±18% turbostat.%pc2
> > 9.04 ± 6% +41.6% 12.80 ± 6% turbostat.%c1
> > 384 ±10% +33.3% 512 ±11% slabinfo.kmem_cache.num_objs
> > 384 ±10% +33.3% 512 ±11% slabinfo.kmem_cache.active_objs
> > 494 ± 8% +25.9% 622 ± 9% slabinfo.kmem_cache_node.active_objs
> > 512 ± 7% +25.0% 640 ± 8% slabinfo.kmem_cache_node.num_objs
> > 379 ± 9% +16.7% 443 ± 7% numa-vmstat.node0.nr_page_table_pages
> > 83427 ± 6% +10.3% 92028 ± 5% meminfo.DirectMap4k
> > 1579 ± 6% -15.3% 1338 ± 7% numa-meminfo.node1.PageTables
> > 394 ± 6% -15.1% 334 ± 7% numa-vmstat.node1.nr_page_table_pages
> > 1509 ± 7% +16.6% 1760 ± 7% numa-meminfo.node0.PageTables
> > 12681 ± 1% -17.3% 10482 ±14% numa-meminfo.node1.AnonPages
> > 3169 ± 1% -17.3% 2620 ±14% numa-vmstat.node1.nr_anon_pages
> > 10171 ± 3% +10.9% 11283 ± 3% slabinfo.kmalloc-512.active_objs
> > 9508 ± 1% +21.3% 11534 ± 7% slabinfo.kmalloc-512.active_objs
> > 10481 ± 3% +10.9% 11620 ± 3% slabinfo.kmalloc-512.num_objs
> > 9838 ± 1% +20.5% 11852 ± 6% slabinfo.kmalloc-512.num_objs
> > 53997 ± 6% +11.1% 59981 ± 4% numa-meminfo.node1.Slab
> > 5072 ± 1% +11.6% 5662 ± 3% slabinfo.kmalloc-2048.num_objs
> > 4974 ± 1% +11.6% 5551 ± 3% slabinfo.kmalloc-2048.active_objs
> > 12824 ± 2% -16.1% 10754 ±14% numa-meminfo.node1.Active(anon)
> > 3205 ± 2% -16.2% 2687 ±14% numa-vmstat.node1.nr_active_anon
> > 2662 ± 3% -9.0% 2424 ± 3% slabinfo.kmalloc-96.active_objs
> > 2710 ± 3% -8.6% 2478 ± 3% slabinfo.kmalloc-96.num_objs
> > 15791 ± 1% +15.2% 18192 ± 9% numa-meminfo.node0.AnonPages
> > 3949 ± 1% +15.2% 4549 ± 9% numa-vmstat.node0.nr_anon_pages
> > 13669 ± 1% -7.5% 12645 ± 2% slabinfo.kmalloc-16.num_objs
> > 662 ±23% +4718.6% 31918 ±12% time.involuntary_context_switches
> > 921 ±41% +3577.7% 33901 ±14% time.involuntary_context_switches
> > 2463 ± 1% +13.1% 2786 ± 3% vmstat.system.in
> > 2371 ± 2% +15.5% 2739 ± 2% vmstat.system.in
> > 49.40 ± 2% +4.8% 51.79 ± 2% turbostat.Cor_W
> > 77.48 ± 1% +3.1% 79.91 ± 1% turbostat.Pkg_W
> >
> > testbox/testcase/testparams: lkp-st02/dd-write/5m-11HDD-RAID5-cfq-xfs-1dd
> >
> > 743cb1ff191f00f caeb178c60f4f93f1b45c0bc0
> > --------------- -------------------------
> > 18571 ± 7% +31.4% 24396 ± 4% proc-vmstat.pgscan_direct_normal
> > 39983 ± 2% +38.3% 55286 ± 0% perf-stat.cpu-migrations
> > 4193962 ± 2% +20.9% 5072009 ± 3% perf-stat.iTLB-load-misses
> > 4.568e+09 ± 2% -17.2% 3.781e+09 ± 1% perf-stat.L1-icache-load-misses
> > 1.762e+10 ± 0% -7.8% 1.625e+10 ± 1% perf-stat.cache-references
> > 1.408e+09 ± 1% -6.6% 1.315e+09 ± 1% perf-stat.branch-load-misses
> > 1.407e+09 ± 1% -6.5% 1.316e+09 ± 1% perf-stat.branch-misses
> > 6.839e+09 ± 1% +5.0% 7.185e+09 ± 2% perf-stat.LLC-loads
> > 1.558e+10 ± 0% +3.5% 1.612e+10 ± 1% perf-stat.L1-dcache-load-misses
> > 1.318e+12 ± 0% +3.4% 1.363e+12 ± 0% perf-stat.L1-icache-loads
> > 2.979e+10 ± 1% +2.4% 3.051e+10 ± 0% perf-stat.L1-dcache-store-misses
> > 1.893e+11 ± 0% +2.5% 1.94e+11 ± 0% perf-stat.branch-instructions
> > 2.298e+11 ± 0% +2.7% 2.361e+11 ± 0% perf-stat.L1-dcache-stores
> > 1.016e+12 ± 0% +2.6% 1.042e+12 ± 0% perf-stat.instructions
> > 1.892e+11 ± 0% +2.5% 1.94e+11 ± 0% perf-stat.branch-loads
> > 3.71e+11 ± 0% +2.4% 3.799e+11 ± 0% perf-stat.dTLB-loads
> > 3.711e+11 ± 0% +2.3% 3.798e+11 ± 0% perf-stat.L1-dcache-loads
> > 325768 ± 0% +2.7% 334461 ± 0% vmstat.io.bo
> > 8083 ± 0% +2.4% 8278 ± 0% iostat.sdf.wrqm/s
> > 8083 ± 0% +2.4% 8278 ± 0% iostat.sdk.wrqm/s
> > 8082 ± 0% +2.4% 8276 ± 0% iostat.sdg.wrqm/s
> > 32615 ± 0% +2.4% 33398 ± 0% iostat.sdf.wkB/s
> > 32617 ± 0% +2.4% 33401 ± 0% iostat.sdk.wkB/s
> > 32612 ± 0% +2.4% 33393 ± 0% iostat.sdg.wkB/s
> > 8083 ± 0% +2.4% 8277 ± 0% iostat.sdl.wrqm/s
> > 8083 ± 0% +2.4% 8276 ± 0% iostat.sdi.wrqm/s
> > 8082 ± 0% +2.4% 8277 ± 0% iostat.sdc.wrqm/s
> > 32614 ± 0% +2.4% 33396 ± 0% iostat.sdl.wkB/s
> > 8083 ± 0% +2.4% 8278 ± 0% iostat.sde.wrqm/s
> > 8082 ± 0% +2.4% 8277 ± 0% iostat.sdh.wrqm/s
> > 8083 ± 0% +2.4% 8277 ± 0% iostat.sdd.wrqm/s
> > 32614 ± 0% +2.4% 33393 ± 0% iostat.sdi.wkB/s
> > 32611 ± 0% +2.4% 33395 ± 0% iostat.sdc.wkB/s
> > 325759 ± 0% +2.4% 333577 ± 0% iostat.md0.wkB/s
> > 1274 ± 0% +2.4% 1305 ± 0% iostat.md0.w/s
> > 8082 ± 0% +2.4% 8277 ± 0% iostat.sdb.wrqm/s
> > 32618 ± 0% +2.4% 33398 ± 0% iostat.sde.wkB/s
> > 32612 ± 0% +2.4% 33395 ± 0% iostat.sdh.wkB/s
> > 32618 ± 0% +2.4% 33397 ± 0% iostat.sdd.wkB/s
> > 8084 ± 0% +2.4% 8278 ± 0% iostat.sdj.wrqm/s
> > 32611 ± 0% +2.4% 33396 ± 0% iostat.sdb.wkB/s
> > 32618 ± 0% +2.4% 33400 ± 0% iostat.sdj.wkB/s
> > 2.3e+11 ± 0% +2.5% 2.357e+11 ± 0% perf-stat.dTLB-stores
> > 4898 ± 0% +2.1% 5003 ± 0% vmstat.system.cs
> > 1.017e+12 ± 0% +2.4% 1.042e+12 ± 0% perf-stat.iTLB-loads
> > 1518279 ± 0% +2.1% 1549457 ± 0% perf-stat.context-switches
> > 1.456e+12 ± 0% +1.4% 1.476e+12 ± 0% perf-stat.cpu-cycles
> > 1.456e+12 ± 0% +1.3% 1.475e+12 ± 0% perf-stat.ref-cycles
> > 1.819e+11 ± 0% +1.3% 1.843e+11 ± 0% perf-stat.bus-cycles
> >
> > lkp-sb03 is a Sandy Bridge-EP server.
> > Memory: 64G
> > Architecture: x86_64
> > CPU op-mode(s): 32-bit, 64-bit
> > Byte Order: Little Endian
> > CPU(s): 32
> > On-line CPU(s) list: 0-31
> > Thread(s) per core: 2
> > Core(s) per socket: 8
> > Socket(s): 2
> > NUMA node(s): 2
> > Vendor ID: GenuineIntel
> > CPU family: 6
> > Model: 45
> > Stepping: 6
> > CPU MHz: 3500.613
> > BogoMIPS: 5391.16
> > Virtualization: VT-x
> > L1d cache: 32K
> > L1i cache: 32K
> > L2 cache: 256K
> > L3 cache: 20480K
> > NUMA node0 CPU(s): 0-7,16-23
> > NUMA node1 CPU(s): 8-15,24-31
> >
> > lkp-st02 is Core2
> > Memory: 8G
> >
> >
> >
> >
> > time.involuntary_context_switches
> >
> > 40000 O+------------------------------------------------------------------+
> > | O O O |
> > 35000 ++O O O O O O |
> > 30000 ++ O O O |
> > | O O O |
> > 25000 ++ O O |
> > | |
> > 20000 ++ |
> > | |
> > 15000 ++ |
> > 10000 ++ |
> > | |
> > 5000 ++ |
> > | .*. |
> > 0 *+*--*-*-*-*--*-*-*-*--*-*-*-*--*-*-*--*-*-*-*--*---*-*--*-*-*-*--*-*
> >
> >
> > [*] bisect-good sample
> > [O] bisect-bad sample
> >
> >
> > Disclaimer:
> > Results have been estimated based on internal Intel analysis and are provided
> > for informational purposes only. Any difference in system hardware or software
> > design or configuration may affect actual performance.
> >
> > Thanks,
> > Fengguang
> >
next prev parent reply other threads:[~2014-08-21 15:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-21 14:01 [sched/fair] caeb178c60f: +252.0% cpuidle.C1-SNB.time, +3.1% turbostat.Pkg_W Fengguang Wu
2014-08-21 14:01 ` Fengguang Wu
2014-08-21 14:16 ` Rik van Riel
2014-08-21 14:16 ` Rik van Riel
2014-08-21 15:00 ` Fengguang Wu [this message]
2014-08-21 15:00 ` Fengguang Wu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140821150050.GA22665@localhost \
--to=fengguang.wu@intel.com \
--cc=lkp@lists.01.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.