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Date: Sat, 25 Jul 2015 14:09:05 +0800
From: kernel test robot <ying.huang@...el.com>
TO: Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
CC: Peter Zijlstra <peterz@...radead.org>
Subject: [lkp] [sched/preempt] 103637a5b94: 12.4% fsmark.app_overhead, -1.4% fsmark.files_per_sec
FYI, we noticed the below changes on
git://internal_merge_and_test_tree revert-103637a5b947af7e6abb8d19b341acff6fbf1ec3-103637a5b947af7e6abb8d19b341acff6fbf1ec3
commit 103637a5b947af7e6abb8d19b341acff6fbf1ec3 ("sched/preempt: Fix cond_resched_lock() and cond_resched_softirq()")
=========================================================================================
tbox_group/testcase/rootfs/kconfig/compiler/cpufreq_governor/iterations/nr_threads/disk/fs/fs2/filesize/test_size/sync_method/nr_directories/nr_files_per_directory:
nhm4/fsmark/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/performance/1x/32t/1HDD/f2fs/nfsv4/9B/400M/fsyncBeforeClose/16d/256fpd
commit:
834b9279b37ad019272ff140497b1e07ab52d124
103637a5b947af7e6abb8d19b341acff6fbf1ec3
834b9279b37ad019 103637a5b947af7e6abb8d19b3
---------------- --------------------------
%stddev %change %stddev
\ | \
10808007 ± 2% +12.4% 12147111 ± 3% fsmark.app_overhead
348.95 ± 0% -1.4% 343.95 ± 0% fsmark.files_per_sec
292.92 ± 0% +1.8% 298.06 ± 0% fsmark.time.elapsed_time
292.92 ± 0% +1.8% 298.06 ± 0% fsmark.time.elapsed_time.max
103928 ± 0% +13.9% 118415 ± 0% fsmark.time.involuntary_context_switches
468477 ± 0% -2.2% 458135 ± 0% fsmark.time.voluntary_context_switches
103928 ± 0% +13.9% 118415 ± 0% time.involuntary_context_switches
16609 ± 0% -2.1% 16267 ± 0% vmstat.system.in
4527868 ± 2% +25.9% 5698416 ± 2% latency_stats.sum.rpc_wait_bit_killable.__rpc_execute.rpc_execute.rpc_run_task.nfs4_call_sync_sequence.[nfsv4]._nfs4_proc_lookup.[nfsv4].nfs4_proc_lookup_common.[nfsv4].nfs4_proc_lookup.[nfsv4].nfs_lookup_revalidate.nfs4_lookup_revalidate.lookup_dcache.__lookup_hash
2.317e+09 ± 0% +5.5% 2.444e+09 ± 0% latency_stats.sum.rpc_wait_bit_killable.__rpc_wait_for_completion_task.nfs4_run_open_task.[nfsv4]._nfs4_open_and_get_state.[nfsv4].nfs4_do_open.[nfsv4].nfs4_atomic_open.[nfsv4].nfs_atomic_open.path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
1.548e+09 ± 0% +2.9% 1.593e+09 ± 0% latency_stats.sum.wait_on_page_bit.filemap_fdatawait_range.filemap_write_and_wait_range.nfs4_file_fsync.[nfsv4].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath
3.399e+08 ± 1% +19.0% 4.043e+08 ± 2% cpuidle.C1-NHM.time
82737781 ± 0% +24.8% 1.032e+08 ± 0% cpuidle.C1E-NHM.time
141228 ± 0% +23.4% 174263 ± 0% cpuidle.C1E-NHM.usage
128964 ±154% +209.1% 398639 ± 26% cpuidle.POLL.time
3.47 ± 0% -2.5% 3.38 ± 0% turbostat.%Busy
110.25 ± 0% -2.0% 108.00 ± 0% turbostat.Avg_MHz
32.94 ± 0% +14.4% 37.69 ± 1% turbostat.CPU%c1
32.26 ± 1% -11.3% 28.62 ± 1% turbostat.CPU%c3
-2795 ± -9% -19.2% -2258 ± -4% sched_debug.cfs_rq[1]:/.spread0
3273 ± 4% +29.9% 4250 ± 10% sched_debug.cfs_rq[5]:/.avg->runnable_avg_sum
70.25 ± 4% +29.5% 91.00 ± 10% sched_debug.cfs_rq[5]:/.tg_runnable_contrib
-2687 ± 0% -14.1% -2308 ± -2% sched_debug.cpu#0.nr_uninterruptible
333314 ± 74% -46.7% 177695 ± 3% sched_debug.cpu#0.ttwu_count
318.25 ± 11% -41.3% 186.75 ± 6% sched_debug.cpu#1.nr_uninterruptible
331.50 ± 9% -16.0% 278.50 ± 11% sched_debug.cpu#2.nr_uninterruptible
172.25 ± 21% +63.6% 281.75 ± 14% sched_debug.cpu#3.nr_uninterruptible
753.75 ± 2% +38.7% 1045 ± 4% sched_debug.cpu#4.nr_uninterruptible
839497 ±169% -98.0% 16681 ± 1% sched_debug.cpu#4.ttwu_local
392.00 ± 3% -50.6% 193.50 ± 12% sched_debug.cpu#5.nr_uninterruptible
12.50 ± 35% +272.0% 46.50 ± 73% sched_debug.cpu#6.cpu_load[0]
385.00 ± 7% -53.0% 181.00 ± 8% sched_debug.cpu#6.nr_uninterruptible
362.00 ± 2% -53.8% 167.25 ± 15% sched_debug.cpu#7.nr_uninterruptible
nhm4: Nehalem
Memory: 4G
fsmark.files_per_sec
352 *+-*-------------------------*-----*--*-------------------------------+
351 ++ *.. .. : : : |
| . . : : : |
350 ++ *.. .* : : : |
349 ++ *..*..*..*. * *...*..*..* |
| |
348 ++ |
347 ++ |
346 ++ |
O O O O O O O O |
345 ++ O O O
344 ++ O O O |
| |
343 ++ O O O O O O O O O |
342 ++--------------------------------------------------------------------+
fsmark.time.elapsed_time
299 ++--------------------------------------------------------------------+
| O O O O O O O O O |
298 ++ O O O O O O O O O
297 O+ O O O |
| O |
296 ++ |
295 ++ |
| |
294 ++ *..*.. |
293 ++ .. *.. *...*..*.. |
*.. *...* *..*... .*.. + * |
292 ++ .. *. *.. + |
291 ++ * * |
| |
290 ++--------------------------------------------------------------------+
fsmark.time.elapsed_time.max
299 ++--------------------------------------------------------------------+
| O O O O O O O O O |
298 ++ O O O O O O O O O
297 O+ O O O |
| O |
296 ++ |
295 ++ |
| |
294 ++ *..*.. |
293 ++ .. *.. *...*..*.. |
*.. *...* *..*... .*.. + * |
292 ++ .. *. *.. + |
291 ++ * * |
| |
290 ++--------------------------------------------------------------------+
fsmark.time.voluntary_context_switches
470000 ++--------------------------------*--------------------------------+
| *..*. *.. .*..*..* |
468000 *+.*..*.. .*..*..*.. .. *. |
466000 ++ *. .* |
| *. |
464000 ++ |
| |
462000 ++ |
| |
460000 ++ |
458000 ++ O O O O O O O O
| O O O O O O O O |
456000 O+ O O O O O O |
| |
454000 ++-----------------------------------------------------------------+
fsmark.time.involuntary_context_switches
120000 ++-----------------------------------------------------------------+
| O O O O O O
118000 O+ O O O O O O O |
116000 ++ O O O O O O O O O |
| |
114000 ++ |
112000 ++ |
| |
110000 ++ |
108000 ++ |
| |
106000 ++ |
104000 *+.*..*..*..*.. .*..*...*..*.. .*..* |
| *..*..*..*. *..*. |
102000 ++-----------------------------------------------------------------+
time.involuntary_context_switches
120000 ++-----------------------------------------------------------------+
| O O O O O O
118000 O+ O O O O O O O |
116000 ++ O O O O O O O O O |
| |
114000 ++ |
112000 ++ |
| |
110000 ++ |
108000 ++ |
| |
106000 ++ |
104000 *+.*..*..*..*.. .*..*...*..*.. .*..* |
| *..*..*..*. *..*. |
102000 ++-----------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
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,
Ying Huang
View attachment "job.yaml" of type "text/plain" (3770 bytes)
View attachment "reproduce" of type "text/plain" (1333 bytes)
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