* [ARM] f9ff907b0af: -100.0% slabinfo.cfq_queue.num_objs
@ 2014-05-29 4:55 Jet Chen
2014-05-29 6:00 ` Fengguang Wu
0 siblings, 1 reply; 2+ messages in thread
From: Jet Chen @ 2014-05-29 4:55 UTC (permalink / raw)
To: lkp
[-- Attachment #1: Type: text/plain, Size: 6465 bytes --]
TO: Rabin Vincent <rabin@rab.in>
CC: Russell King <rmk+kernel@arm.linux.org.uk>
CC: LKML <linux-kernel@vger.kernel.org>
CC: lkp(a)01.org
FYI, we noticed the below changes on
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit f9ff907b0af561dcde4683f7c9f71dc0f41d3be3 ("ARM: 8048/1: fix v7-M setup stack location")
test case: lkp-st02/dd-write/11HDD-RAID5-cfq-ext4-1dd
v3.15-rc6 f9ff907b0af561dcde4683f7c
--------------- -------------------------
273 ~ 3% -100.0% 0 ~ 0% TOTAL slabinfo.cfq_queue.num_objs
65541468 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.time
273 ~ 3% -100.0% 0 ~ 0% TOTAL slabinfo.cfq_queue.active_objs
969 ~ 8% -100.0% 0 ~ 0% TOTAL slabinfo.ip6_dst_cache.num_objs
948 ~ 8% -100.0% 0 ~ 0% TOTAL slabinfo.ip6_dst_cache.active_objs
12399 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.balanced_dirty_ratelimit
14234 ~ 2% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.task_ratelimit
10649 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.dirty_ratelimit
17409 ~ 2% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.dirty_rate
13787 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.awrite_bw
14464 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.write_bw
65322936 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.time
31 ~ 3% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.dirtied_pause
31 ~ 3% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.dirtied
14350 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.task_ratelimit
10633 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.dirty_ratelimit
13720 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.bdi_dirty
15220 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.bdi_setpoint
13720 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.dirty
15251 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.setpoint
17638 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.limit
36455 ~ 0% +221.6% 117256 ~ 0% TOTAL proc-vmstat.unevictable_pgs_culled
986338 ~ 0% -55.5% 438629 ~ 0% TOTAL meminfo.Unevictable
246584 ~ 0% -55.5% 109657 ~ 0% TOTAL proc-vmstat.nr_unevictable
84787 ~20% -47.1% 44851 ~10% TOTAL meminfo.DirectMap4k
11266582 ~ 1% -38.7% 6903348 ~ 0% TOTAL ftrace.writeback_single_inode.md0.index
10996 ~ 9% -25.9% 8143 ~14% TOTAL meminfo.AnonHugePages
1127 ~ 2% +29.8% 1462 ~ 1% TOTAL slabinfo.ftrace_event_file.num_objs
1127 ~ 2% +29.8% 1462 ~ 1% TOTAL slabinfo.ftrace_event_file.active_objs
1.47 ~12% -20.7% 1.17 ~ 7% TOTAL perf-profile.cpu-cycles.do_get_write_access.jbd2_journal_get_write_access.__ext4_journal_get_write_access.ext4_reserve_inode_write.ext4_mark_inode_dirty
15826442 ~ 0% -15.5% 13381229 ~ 0% TOTAL ftrace.global_dirty_state.written
15944180 ~ 0% -15.3% 13502162 ~ 0% TOTAL ftrace.global_dirty_state.dirtied
2906 ~ 1% +14.0% 3314 ~ 1% TOTAL slabinfo.shared_policy_node.active_objs
2906 ~ 1% +14.0% 3314 ~ 1% TOTAL slabinfo.shared_policy_node.num_objs
348891 ~ 0% +14.4% 399046 ~ 0% TOTAL ftrace.global_dirty_state.limit
394528 ~ 0% +11.8% 441163 ~ 0% TOTAL meminfo.MemFree
98671 ~ 0% +11.8% 110310 ~ 0% TOTAL proc-vmstat.nr_free_pages
400850 ~ 0% +11.0% 444838 ~ 0% TOTAL vmstat.memory.free
108208 ~ 0% +11.0% 120084 ~ 0% TOTAL proc-vmstat.nr_dirty
432868 ~ 0% +11.0% 480357 ~ 0% TOTAL meminfo.Dirty
79363 ~ 1% -8.9% 72291 ~ 0% TOTAL proc-vmstat.workingset_nodereclaim
65550 ~ 2% -9.1% 59612 ~ 1% TOTAL softirqs.SCHED
12.06 ~ 5% +530.1% 75.99 ~ 8% TOTAL iostat.sdd.rrqm/s
50.78 ~ 5% +530.2% 320.04 ~ 8% TOTAL iostat.sdd.rkB/s
12.29 ~ 5% +520.0% 76.21 ~ 7% TOTAL iostat.sde.rrqm/s
51.66 ~ 5% +520.9% 320.74 ~ 7% TOTAL iostat.sde.rkB/s
49.28 ~ 6% +542.9% 316.82 ~ 7% TOTAL iostat.sdc.rkB/s
53.30 ~ 6% +498.9% 319.26 ~ 7% TOTAL iostat.sdf.rkB/s
12.62 ~ 5% +496.4% 75.27 ~ 6% TOTAL iostat.sdg.rrqm/s
53.21 ~ 5% +496.2% 317.20 ~ 6% TOTAL iostat.sdg.rkB/s
12.37 ~ 4% +509.6% 75.41 ~ 7% TOTAL iostat.sdh.rrqm/s
51.89 ~ 4% +511.8% 317.47 ~ 7% TOTAL iostat.sdh.rkB/s
12.60 ~ 5% +500.9% 75.73 ~ 8% TOTAL iostat.sdi.rrqm/s
52.95 ~ 5% +502.2% 318.87 ~ 8% TOTAL iostat.sdi.rkB/s
12.88 ~ 5% +491.9% 76.26 ~ 8% TOTAL iostat.sdj.rrqm/s
54.51 ~ 5% +490.0% 321.59 ~ 8% TOTAL iostat.sdj.rkB/s
12.69 ~ 6% +501.6% 76.35 ~ 8% TOTAL iostat.sdk.rrqm/s
53.90 ~ 6% +497.5% 322.02 ~ 8% TOTAL iostat.sdk.rkB/s
12.69 ~ 5% +501.4% 76.33 ~ 8% TOTAL iostat.sdl.rrqm/s
53.93 ~ 5% +497.4% 322.15 ~ 8% TOTAL iostat.sdl.rkB/s
50.24 ~ 4% +536.4% 319.69 ~ 8% TOTAL iostat.sdb.rkB/s
11.94 ~ 4% +535.0% 75.84 ~ 8% TOTAL iostat.sdb.rrqm/s
11.70 ~ 6% +542.7% 75.21 ~ 7% TOTAL iostat.sdc.rrqm/s
12.68 ~ 7% +498.0% 75.82 ~ 7% TOTAL iostat.sdf.rrqm/s
332 ~ 0% +41.9% 471 ~ 0% TOTAL iostat.md0.avgrq-sz
3616709 ~ 1% -28.9% 2573038 ~ 1% TOTAL perf-stat.context-switches
51043 ~ 1% +10.4% 56342 ~ 3% TOTAL perf-stat.cpu-migrations
6.45e+11 ~ 0% -6.7% 6.021e+11 ~ 0% TOTAL perf-stat.dTLB-loads
758 ~ 0% -5.9% 713 ~ 0% TOTAL iostat.md0.w/s
Legend:
~XX% - stddev percent
[+-]XX% - change percent
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,
Jet
[-- Attachment #2: reproduce.ksh --]
[-- Type: text/plain, Size: 652 bytes --]
mdadm -q --create /dev/md0 --chunk=256 --level=raid5 --raid-devices=11 --force --assume-clean /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1
echo 1 > /sys/kernel/debug/tracing/events/writeback/balance_dirty_pages/enable
echo 1 > /sys/kernel/debug/tracing/events/writeback/bdi_dirty_ratelimit/enable
echo 1 > /sys/kernel/debug/tracing/events/writeback/global_dirty_state/enable
echo 1 > /sys/kernel/debug/tracing/events/writeback/writeback_single_inode/enable
mkfs -t ext4 -q /dev/md0
mount -t ext4 /dev/md0 /fs/md0
dd if=/dev/zero of=/fs/md0/zero-1 status=none &
sleep 600
killall -9 dd
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [ARM] f9ff907b0af: -100.0% slabinfo.cfq_queue.num_objs
2014-05-29 4:55 [ARM] f9ff907b0af: -100.0% slabinfo.cfq_queue.num_objs Jet Chen
@ 2014-05-29 6:00 ` Fengguang Wu
0 siblings, 0 replies; 2+ messages in thread
From: Fengguang Wu @ 2014-05-29 6:00 UTC (permalink / raw)
To: lkp
[-- Attachment #1: Type: text/plain, Size: 7405 bytes --]
Let's ignore this. I don't see meaningful perf/power changes.
On Thu, May 29, 2014 at 12:55:55PM +0800, Jet Chen wrote:
> TO: Rabin Vincent <rabin@rab.in>
> CC: Russell King <rmk+kernel@arm.linux.org.uk>
> CC: LKML <linux-kernel@vger.kernel.org>
> CC: lkp(a)01.org
>
> FYI, we noticed the below changes on
>
> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> commit f9ff907b0af561dcde4683f7c9f71dc0f41d3be3 ("ARM: 8048/1: fix v7-M setup stack location")
>
> test case: lkp-st02/dd-write/11HDD-RAID5-cfq-ext4-1dd
>
> v3.15-rc6 f9ff907b0af561dcde4683f7c
> --------------- -------------------------
> 273 ~ 3% -100.0% 0 ~ 0% TOTAL slabinfo.cfq_queue.num_objs
> 65541468 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.time
> 273 ~ 3% -100.0% 0 ~ 0% TOTAL slabinfo.cfq_queue.active_objs
> 969 ~ 8% -100.0% 0 ~ 0% TOTAL slabinfo.ip6_dst_cache.num_objs
> 948 ~ 8% -100.0% 0 ~ 0% TOTAL slabinfo.ip6_dst_cache.active_objs
> 12399 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.balanced_dirty_ratelimit
> 14234 ~ 2% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.task_ratelimit
> 10649 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.dirty_ratelimit
> 17409 ~ 2% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.dirty_rate
> 13787 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.awrite_bw
> 14464 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.write_bw
> 65322936 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.bdi_dirty_ratelimit.md0.time
> 31 ~ 3% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.dirtied_pause
> 31 ~ 3% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.dirtied
> 14350 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.task_ratelimit
> 10633 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.dirty_ratelimit
> 13720 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.bdi_dirty
> 15220 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.bdi_setpoint
> 13720 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.dirty
> 15251 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.setpoint
> 17638 ~ 1% -100.0% 0 ~ 0% TOTAL ftrace.balance_dirty_pages.md0.limit
> 36455 ~ 0% +221.6% 117256 ~ 0% TOTAL proc-vmstat.unevictable_pgs_culled
> 986338 ~ 0% -55.5% 438629 ~ 0% TOTAL meminfo.Unevictable
> 246584 ~ 0% -55.5% 109657 ~ 0% TOTAL proc-vmstat.nr_unevictable
> 84787 ~20% -47.1% 44851 ~10% TOTAL meminfo.DirectMap4k
> 11266582 ~ 1% -38.7% 6903348 ~ 0% TOTAL ftrace.writeback_single_inode.md0.index
> 10996 ~ 9% -25.9% 8143 ~14% TOTAL meminfo.AnonHugePages
> 1127 ~ 2% +29.8% 1462 ~ 1% TOTAL slabinfo.ftrace_event_file.num_objs
> 1127 ~ 2% +29.8% 1462 ~ 1% TOTAL slabinfo.ftrace_event_file.active_objs
> 1.47 ~12% -20.7% 1.17 ~ 7% TOTAL perf-profile.cpu-cycles.do_get_write_access.jbd2_journal_get_write_access.__ext4_journal_get_write_access.ext4_reserve_inode_write.ext4_mark_inode_dirty
> 15826442 ~ 0% -15.5% 13381229 ~ 0% TOTAL ftrace.global_dirty_state.written
> 15944180 ~ 0% -15.3% 13502162 ~ 0% TOTAL ftrace.global_dirty_state.dirtied
> 2906 ~ 1% +14.0% 3314 ~ 1% TOTAL slabinfo.shared_policy_node.active_objs
> 2906 ~ 1% +14.0% 3314 ~ 1% TOTAL slabinfo.shared_policy_node.num_objs
> 348891 ~ 0% +14.4% 399046 ~ 0% TOTAL ftrace.global_dirty_state.limit
> 394528 ~ 0% +11.8% 441163 ~ 0% TOTAL meminfo.MemFree
> 98671 ~ 0% +11.8% 110310 ~ 0% TOTAL proc-vmstat.nr_free_pages
> 400850 ~ 0% +11.0% 444838 ~ 0% TOTAL vmstat.memory.free
> 108208 ~ 0% +11.0% 120084 ~ 0% TOTAL proc-vmstat.nr_dirty
> 432868 ~ 0% +11.0% 480357 ~ 0% TOTAL meminfo.Dirty
> 79363 ~ 1% -8.9% 72291 ~ 0% TOTAL proc-vmstat.workingset_nodereclaim
> 65550 ~ 2% -9.1% 59612 ~ 1% TOTAL softirqs.SCHED
> 12.06 ~ 5% +530.1% 75.99 ~ 8% TOTAL iostat.sdd.rrqm/s
> 50.78 ~ 5% +530.2% 320.04 ~ 8% TOTAL iostat.sdd.rkB/s
> 12.29 ~ 5% +520.0% 76.21 ~ 7% TOTAL iostat.sde.rrqm/s
> 51.66 ~ 5% +520.9% 320.74 ~ 7% TOTAL iostat.sde.rkB/s
> 49.28 ~ 6% +542.9% 316.82 ~ 7% TOTAL iostat.sdc.rkB/s
> 53.30 ~ 6% +498.9% 319.26 ~ 7% TOTAL iostat.sdf.rkB/s
> 12.62 ~ 5% +496.4% 75.27 ~ 6% TOTAL iostat.sdg.rrqm/s
> 53.21 ~ 5% +496.2% 317.20 ~ 6% TOTAL iostat.sdg.rkB/s
> 12.37 ~ 4% +509.6% 75.41 ~ 7% TOTAL iostat.sdh.rrqm/s
> 51.89 ~ 4% +511.8% 317.47 ~ 7% TOTAL iostat.sdh.rkB/s
> 12.60 ~ 5% +500.9% 75.73 ~ 8% TOTAL iostat.sdi.rrqm/s
> 52.95 ~ 5% +502.2% 318.87 ~ 8% TOTAL iostat.sdi.rkB/s
> 12.88 ~ 5% +491.9% 76.26 ~ 8% TOTAL iostat.sdj.rrqm/s
> 54.51 ~ 5% +490.0% 321.59 ~ 8% TOTAL iostat.sdj.rkB/s
> 12.69 ~ 6% +501.6% 76.35 ~ 8% TOTAL iostat.sdk.rrqm/s
> 53.90 ~ 6% +497.5% 322.02 ~ 8% TOTAL iostat.sdk.rkB/s
> 12.69 ~ 5% +501.4% 76.33 ~ 8% TOTAL iostat.sdl.rrqm/s
> 53.93 ~ 5% +497.4% 322.15 ~ 8% TOTAL iostat.sdl.rkB/s
> 50.24 ~ 4% +536.4% 319.69 ~ 8% TOTAL iostat.sdb.rkB/s
> 11.94 ~ 4% +535.0% 75.84 ~ 8% TOTAL iostat.sdb.rrqm/s
> 11.70 ~ 6% +542.7% 75.21 ~ 7% TOTAL iostat.sdc.rrqm/s
> 12.68 ~ 7% +498.0% 75.82 ~ 7% TOTAL iostat.sdf.rrqm/s
> 332 ~ 0% +41.9% 471 ~ 0% TOTAL iostat.md0.avgrq-sz
> 3616709 ~ 1% -28.9% 2573038 ~ 1% TOTAL perf-stat.context-switches
> 51043 ~ 1% +10.4% 56342 ~ 3% TOTAL perf-stat.cpu-migrations
> 6.45e+11 ~ 0% -6.7% 6.021e+11 ~ 0% TOTAL perf-stat.dTLB-loads
> 758 ~ 0% -5.9% 713 ~ 0% TOTAL iostat.md0.w/s
>
> Legend:
> ~XX% - stddev percent
> [+-]XX% - change percent
>
>
>
>
> 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,
> Jet
>
> mdadm -q --create /dev/md0 --chunk=256 --level=raid5 --raid-devices=11 --force --assume-clean /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1
> echo 1 > /sys/kernel/debug/tracing/events/writeback/balance_dirty_pages/enable
> echo 1 > /sys/kernel/debug/tracing/events/writeback/bdi_dirty_ratelimit/enable
> echo 1 > /sys/kernel/debug/tracing/events/writeback/global_dirty_state/enable
> echo 1 > /sys/kernel/debug/tracing/events/writeback/writeback_single_inode/enable
> mkfs -t ext4 -q /dev/md0
> mount -t ext4 /dev/md0 /fs/md0
> dd if=/dev/zero of=/fs/md0/zero-1 status=none &
> sleep 600
> killall -9 dd
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2014-05-29 4:55 [ARM] f9ff907b0af: -100.0% slabinfo.cfq_queue.num_objs Jet Chen
2014-05-29 6:00 ` Fengguang Wu
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