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Date: Sun, 20 Sep 2015 16:59:43 +0800
From: kernel test robot <ying.huang@...el.com>
TO: Jeff Layton <jeff.layton@...marydata.com>
CC: LKML <linux-kernel@...r.kernel.org>
Subject: [lkp] [nfsd] 07d2931094: -6.0% fsmark.files_per_sec
FYI, we noticed the below changes on
git://git.samba.org/jlayton/linux nfsd-4.4
commit 07d29310940bf676822715efd4be3c769cae97c2 ("nfsd: convert nfs4_file->fi_fds array to use nfsd_files")
=========================================================================================
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/xfs/nfsv4/9B/400M/fsyncBeforeClose/16d/256fpd
commit:
62b92d7854c66931ad66601ade1e4cc941c0e5ac
07d29310940bf676822715efd4be3c769cae97c2
62b92d7854c66931 07d29310940bf676822715efd4
---------------- --------------------------
%stddev %change %stddev
\ | \
663.20 ± 0% -6.0% 623.20 ± 0% fsmark.files_per_sec
154.58 ± 0% +6.4% 164.47 ± 0% fsmark.time.elapsed_time
154.58 ± 0% +6.4% 164.47 ± 0% fsmark.time.elapsed_time.max
124955 ± 0% -5.3% 118317 ± 0% fsmark.time.involuntary_context_switches
7.00 ± 0% +14.3% 8.00 ± 0% fsmark.time.percent_of_cpu_this_job_got
448628 ± 0% -1.4% 442375 ± 0% fsmark.time.voluntary_context_switches
10022 ± 0% +51.3% 15166 ± 1% proc-vmstat.nr_slab_unreclaimable
41390 ± 0% +9.7% 45425 ± 1% softirqs.SCHED
40093 ± 0% +51.3% 60669 ± 1% meminfo.SUnreclaim
122014 ± 0% +23.1% 150170 ± 1% meminfo.Slab
7.904e+08 ± 0% +19.9% 9.476e+08 ± 1% latency_stats.sum.rpc_wait_bit_killable.__rpc_wait_for_completion_task.nfs4_do_close.[nfsv4].__nfs4_close.[nfsv4].nfs4_close_sync.[nfsv4].nfs4_close_context.[nfsv4].__put_nfs_open_context.nfs_file_clear_open_context.nfs_file_release.__fput.____fput.task_work_run
8.165e+08 ± 0% +18.8% 9.698e+08 ± 1% 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
61710810 ± 2% -7.2% 57259741 ± 1% 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
7.00 ± 0% +14.3% 8.00 ± 0% time.percent_of_cpu_this_job_got
10.79 ± 3% +17.4% 12.66 ± 3% time.system_time
1.15 ± 1% +31.7% 1.51 ± 2% time.user_time
6.81 ± 2% +14.3% 7.79 ± 1% turbostat.%Busy
221.50 ± 0% +10.6% 245.00 ± 0% turbostat.Avg_MHz
9.46 ± 2% +38.4% 13.08 ± 6% turbostat.CPU%c3
9139 ± 0% -7.3% 8470 ± 1% vmstat.io.bo
94161 ± 0% -6.4% 88109 ± 0% vmstat.system.cs
31533 ± 1% -5.9% 29663 ± 0% vmstat.system.in
1.994e+08 ± 2% +20.0% 2.392e+08 ± 3% cpuidle.C3-NHM.time
870510 ± 4% +19.2% 1037726 ± 4% cpuidle.C3-NHM.usage
115687 ± 2% +22.6% 141821 ± 2% cpuidle.C6-NHM.usage
3283 ± 4% -61.4% 1266 ± 10% cpuidle.POLL.usage
863.25 ± 56% +52.0% 1312 ± 8% sched_debug.cfs_rq[3]:/.load_avg
7.25 ± 26% +93.1% 14.00 ± 16% sched_debug.cfs_rq[3]:/.nr_spread_over
34.25 ± 59% +58.4% 54.25 ± 39% sched_debug.cfs_rq[4]:/.util_avg
1143 ± 0% +20.2% 1375 ± 9% sched_debug.cfs_rq[5]:/.exec_clock
171.50 ± 95% +307.9% 699.50 ± 40% sched_debug.cfs_rq[7]:/.load_avg
253.00 ± 60% +177.0% 700.75 ± 40% sched_debug.cfs_rq[7]:/.tg_load_avg_contrib
33.50 ±106% +320.1% 140.75 ± 12% sched_debug.cfs_rq[7]:/.util_avg
1669 ± 3% -13.2% 1449 ± 4% sched_debug.cpu#0.nr_uninterruptible
289.50 ±172% -100.0% 0.00 ± -1% sched_debug.cpu#1.cpu_load[0]
-1212 ± -4% -14.8% -1033 ± -3% sched_debug.cpu#1.nr_uninterruptible
-697.75 ± -4% -16.2% -584.50 ± -9% sched_debug.cpu#2.nr_uninterruptible
868645 ± 93% -94.1% 51606 ± 4% sched_debug.cpu#3.ttwu_count
830065 ± 97% -97.3% 22366 ± 2% sched_debug.cpu#3.ttwu_local
156.50 ± 5% -15.0% 133.00 ± 6% sched_debug.cpu#4.nr_uninterruptible
731718 ± 2% -21.3% 576140 ± 11% sched_debug.cpu#6.avg_idle
104.50 ± 6% -23.4% 80.00 ± 17% sched_debug.cpu#7.nr_uninterruptible
0.00 ± 58% +144.9% 0.01 ± 56% sched_debug.rt_rq[2]:/.rt_time
19017 ± 0% +15.3% 21929 ± 1% slabinfo.buffer_head.active_objs
19017 ± 0% +15.3% 21929 ± 1% slabinfo.buffer_head.num_objs
16492 ± 0% +12.6% 18575 ± 0% slabinfo.kmalloc-128.active_objs
16521 ± 0% +12.6% 18608 ± 0% slabinfo.kmalloc-128.num_objs
5523 ± 1% +391.2% 27131 ± 1% slabinfo.kmalloc-16.active_objs
5523 ± 1% +391.2% 27132 ± 1% slabinfo.kmalloc-16.num_objs
4788 ± 4% +1347.9% 69331 ± 1% slabinfo.kmalloc-192.active_objs
116.00 ± 4% +1324.6% 1652 ± 1% slabinfo.kmalloc-192.active_slabs
4897 ± 4% +1317.5% 69425 ± 1% slabinfo.kmalloc-192.num_objs
116.00 ± 4% +1324.6% 1652 ± 1% slabinfo.kmalloc-192.num_slabs
2199 ± 4% +982.6% 23811 ± 1% slabinfo.kmalloc-256.active_objs
82.75 ± 5% +807.6% 751.00 ± 1% slabinfo.kmalloc-256.active_slabs
2672 ± 5% +799.9% 24047 ± 1% slabinfo.kmalloc-256.num_objs
82.75 ± 5% +807.6% 751.00 ± 1% slabinfo.kmalloc-256.num_slabs
8578 ± 0% +224.0% 27792 ± 1% slabinfo.kmalloc-32.active_objs
67.25 ± 0% +225.7% 219.00 ± 1% slabinfo.kmalloc-32.active_slabs
8691 ± 0% +223.3% 28101 ± 1% slabinfo.kmalloc-32.num_objs
67.25 ± 0% +225.7% 219.00 ± 1% slabinfo.kmalloc-32.num_slabs
1690 ± 2% +19.1% 2013 ± 6% slabinfo.kmalloc-512.num_objs
48504 ± 0% +11.1% 53877 ± 1% slabinfo.kmalloc-64.active_objs
48586 ± 0% +10.9% 53880 ± 1% slabinfo.kmalloc-64.num_objs
35280 ± 0% +14.3% 40314 ± 1% slabinfo.kmalloc-96.active_objs
839.75 ± 0% +14.2% 959.25 ± 1% slabinfo.kmalloc-96.active_slabs
35280 ± 0% +14.3% 40314 ± 1% slabinfo.kmalloc-96.num_objs
839.75 ± 0% +14.2% 959.25 ± 1% slabinfo.kmalloc-96.num_slabs
1306 ± 1% +11.5% 1457 ± 1% slabinfo.mnt_cache.active_objs
1306 ± 1% +11.5% 1457 ± 1% slabinfo.mnt_cache.num_objs
19130 ± 0% +15.3% 22064 ± 1% slabinfo.nfs_inode_cache.active_objs
19130 ± 0% +15.3% 22064 ± 1% slabinfo.nfs_inode_cache.num_objs
19086 ± 0% +15.3% 22012 ± 1% slabinfo.xfs_ili.active_objs
733.50 ± 0% +15.3% 846.00 ± 1% slabinfo.xfs_ili.active_slabs
19086 ± 0% +15.3% 22012 ± 1% slabinfo.xfs_ili.num_objs
733.50 ± 0% +15.3% 846.00 ± 1% slabinfo.xfs_ili.num_slabs
19113 ± 0% +15.3% 22042 ± 1% slabinfo.xfs_inode.active_objs
19113 ± 0% +15.3% 22042 ± 1% slabinfo.xfs_inode.num_objs
vm-lkp-wsx01-8G: qemu-system-x86_64 -enable-kvm -cpu kvm64
Memory: 8G
nhm4: Nehalem
Memory: 4G
cpuidle.POLL.usage
4500 ++-------------------------------------------------------------------+
| * |
4000 ++ : + |
| *.. : + * |
3500 ++ + : *. *..*.. + + .*..|
*..*.*.. .* *..*.*..*..*.* *.. + *.*..*..* + .* *
3000 ++ *. * *. |
| |
2500 ++ |
| |
2000 ++ |
| |
1500 ++ O |
O O O O O O O O O O |
1000 ++-O----O----------O-O-----O----O------------------------------------+
turbostat.Avg_MHz
250 ++--------------------------------------------------------------------+
| O |
245 ++ O O O O O O O O O |
O O O O O O O |
240 ++ |
| |
235 ++ |
| |
230 ++ * |
| + : |
225 *+.*.*..*..*. + : .*.. .*
| * : .*.. .*.*.. .*.*..*..*.*. *..*. *.*. |
220 ++ *..* *. *. *.. .. |
| * |
215 ++--------------------------------------------------------------------+
turbostat.%Busy
8 ++--------------------------------------------------------------------+
O O O O O O O O O O O |
7.8 ++ O O O O O |
7.6 ++ |
| O |
7.4 ++ |
| |
7.2 ++ |
| |
7 ++.*. .*. .*.. .*.. .*
6.8 *+ *..*. *. *..*.*.. *.*..*..*.*..*..*.*. *..*. *.*. |
| .. *.. .. |
6.6 ++ * * |
| |
6.4 ++--------------------------------------------------------------------+
fsmark.files_per_sec
740 ++--------------------------------------------------------------------+
| * |
720 ++ : |
| : : |
700 ++ : : |
| : : |
680 ++ : : |
*..*.*.. .* : .*..*.. .*.. .*.. .*..*.. .*
660 ++ *..* *..* * *..*.*. * *..*.*..*..*.*. |
| |
640 ++ |
| O |
620 O+ O O O O O O O O O O O O O O O |
| |
600 ++--------------------------------------------------------------------+
fsmark.time.elapsed_time
170 ++--------------------------------------------------------------------+
| |
165 O+ O O O O O O O O O O O O O |
| O O O |
| |
160 ++ |
| .*.. |
155 *+.*.*..*..*.* *..*.*.. .*.*..*..*.*.. .*. .*..* *..*.*..*
| : : *. *. *..*. |
150 ++ : : |
| : : |
| : : |
145 ++ * |
| |
140 ++--------------------------------------------------------------------+
fsmark.time.elapsed_time.max
170 ++--------------------------------------------------------------------+
| |
165 O+ O O O O O O O O O O O O O |
| O O O |
| |
160 ++ |
| .*.. |
155 *+.*.*..*..*.* *..*.*.. .*.*..*..*.*.. .*. .*..* *..*.*..*
| : : *. *. *..*. |
150 ++ : : |
| : : |
| : : |
145 ++ * |
| |
140 ++--------------------------------------------------------------------+
fsmark.time.involuntary_context_switches
126000 ++---*------------------------------------------------*------------+
*..* *.*..*.*.. .*.. *..*.. .*.*..*.. + * *.*..*
125000 ++ *..* + *.*..*.*. * + .. |
124000 ++ * * |
| |
123000 ++ |
122000 ++ |
| |
121000 ++ |
120000 ++ |
| |
119000 ++ O |
118000 O+ O O O O O O O O O O |
| O O O O O |
117000 ++-----------------------------------------------------------------+
time.user_time
1.6 ++-------------------------O----O-------------------------------------+
O O O |
1.5 ++ O O O O O O O O |
| O O O O |
| |
1.4 ++ |
| |
1.3 ++ |
| .*.. .*.. |
1.2 ++.*. .* .*..*. .*..*..* *.. |
*. *..*. *. *.. .*..*..* *.. .*.. |
| .* *.*. *.*..*
1.1 ++ *. |
| |
1 ++--------------------------------------------------------------------+
vmstat.io.bo
10200 ++--------------*---------------------------------------------------+
10000 ++ : |
| : : |
9800 ++ : : |
9600 ++ : : |
| : : |
9400 ++ : : |
9200 *+. : : .*.. .*. .*.. .*.. .*.. .*
9000 ++ *.*..*.*..* *..*..* *.*..*..*.*. *. .*. * *.*. |
| * |
8800 ++ |
8600 ++ O O O O |
O O O O O O O O O O O O |
8400 ++ |
8200 ++--------------------------------O---------------------------------+
proc-vmstat.nr_slab_unreclaimable
16000 ++------------------------------------------------------------------+
O O O O O |
15000 ++ O O O O O O O O O O O O |
| |
14000 ++ |
| |
13000 ++ |
| |
12000 ++ |
| |
11000 ++ |
| .*. |
10000 *+.*.*..*.*..*. *..*..*.*..*.*..*..*.*..*.*..*..*.*..*..*.*..*.*..*
| |
9000 ++------------------------------------------------------------------+
meminfo.Slab
155000 ++-----------------------------------------------------------------+
| O O |
150000 O+ O O O O O O O O O O O O O |
| O |
145000 ++ |
| |
140000 ++ |
| |
135000 ++ |
| |
130000 ++ |
| *.. |
125000 ++ + |
| .*.*..* *..*. .*.*.. .*.*..*. .*. .*.*..*.*..*.*..|
120000 *+-*-*-----------------*-------*---------*----*--*-----------------*
meminfo.SUnreclaim
65000 ++------------------------------------------------------------------+
| |
60000 O+ O O O O O O O O O O O O O O O |
| O |
| |
55000 ++ |
| |
50000 ++ |
| |
45000 ++ |
| |
| .*.*.. .*. |
40000 *+.*.*..*.*..*. *..*.*..*.*..*. *..*.*..*..*.*..*..*.*..*.*..*
| |
35000 ++------------------------------------------------------------------+
slabinfo.kmalloc-256.active_objs
25000 ++------O------------------------------O----------------------------+
O O O O O O O O O O O O O O O |
| |
20000 ++ |
| |
| |
15000 ++ |
| |
10000 ++ |
| |
| |
5000 ++ |
| |
*..*.*..*.*..*..*.*..*..*.*..*.*..*..*.*..*.*..*..*.*..*..*.*..*.*..*
0 ++------------------------------------------------------------------+
slabinfo.kmalloc-256.num_objs
25000 O+-O----O-O--O-------O--O-O--O-O--O----O----------------------------+
| O O O O O |
| |
20000 ++ |
| |
| |
15000 ++ |
| |
10000 ++ |
| |
| |
5000 ++ |
*..*.*.. .*. .*.. .*.. .*. .*.*..|
| *.*..*. *. *.*..*.*..*..* *.*..*. *..*..*.*. *
0 ++------------------------------------------------------------------+
slabinfo.kmalloc-256.active_slabs
800 ++--------------------------------------------------------------------+
O O O O O O O O O O O O O O O O O |
700 ++ |
600 ++ |
| |
500 ++ |
| |
400 ++ |
| |
300 ++ |
200 ++ |
| |
100 ++ .*.. .*.. .*. .*.. .*.*..|
*..* *..*.*. *. *..*..*.*..*..* *..*.*..*..*..*.*..*. *
0 ++--------------------------------------------------------------------+
slabinfo.kmalloc-256.num_slabs
800 ++--------------------------------------------------------------------+
O O O O O O O O O O O O O O O O O |
700 ++ |
600 ++ |
| |
500 ++ |
| |
400 ++ |
| |
300 ++ |
200 ++ |
| |
100 ++ .*.. .*.. .*. .*.. .*.*..|
*..* *..*.*. *. *..*..*.*..*..* *..*.*..*..*..*.*..*. *
0 ++--------------------------------------------------------------------+
slabinfo.kmalloc-192.active_objs
80000 ++------------------------------------------------------------------+
| |
70000 O+ O O O O O O O O O O O O O O O O |
60000 ++ |
| |
50000 ++ |
| |
40000 ++ |
| |
30000 ++ |
20000 ++ |
| |
10000 ++ |
*..*.*..*.*..*..*.*..*..*.*..*.*..*..*.*..*.*..*..*.*..*..*.*..*.*..*
0 ++------------------------------------------------------------------+
slabinfo.kmalloc-192.num_objs
80000 ++------------------------------------------------------------------+
| |
70000 O+ O O O O O O O O O O O O O O O O |
60000 ++ |
| |
50000 ++ |
| |
40000 ++ |
| |
30000 ++ |
20000 ++ |
| |
10000 ++ |
*..*.*..*.*..*..*.*..*..*.*..*.*..*..*.*..*.*..*..*.*..*..*.*..*.*..*
0 ++------------------------------------------------------------------+
slabinfo.kmalloc-192.active_slabs
1800 ++-------------------------------------------------------------------+
O O O O O O O O O O O O O O O O O |
1600 ++ |
1400 ++ |
| |
1200 ++ |
1000 ++ |
| |
800 ++ |
600 ++ |
| |
400 ++ |
200 ++ |
*..*.*..*..*.*..*..*.*..*..*.*..*..*.*..*.*..*..*.*..*..*.*..*..*.*..*
0 ++-------------------------------------------------------------------+
slabinfo.kmalloc-192.num_slabs
1800 ++-------------------------------------------------------------------+
O O O O O O O O O O O O O O O O O |
1600 ++ |
1400 ++ |
| |
1200 ++ |
1000 ++ |
| |
800 ++ |
600 ++ |
| |
400 ++ |
200 ++ |
*..*.*..*..*.*..*..*.*..*..*.*..*..*.*..*.*..*..*.*..*..*.*..*..*.*..*
0 ++-------------------------------------------------------------------+
slabinfo.kmalloc-32.active_objs
55000 ++------------------------------------------------------------------+
50000 O+ O O O O |
| |
45000 ++ |
40000 ++ |
| |
35000 ++ |
30000 ++ O O O O O O |
25000 ++ O O O O O O |
| |
20000 ++ |
15000 ++ |
| |
10000 ++.*.*..*.*..*..*.*..*..*. .*.*..*..*.*..*.*..*..*.*..*..*.*..*.*..*
5000 *+------------------------*-----------------------------------------+
slabinfo.kmalloc-32.num_objs
55000 ++------------------------------------------------------------------+
50000 O+ O O O O |
| |
45000 ++ |
40000 ++ |
| |
35000 ++ |
30000 ++ O O O O O O O O |
25000 ++ O O O O |
| |
20000 ++ |
15000 ++ |
| |
10000 ++.*.*..*.*..*..*.*..*..*.*..*.*..*..*.*..*.*..*..*.*..*..*.*..*.*..*
5000 *+------------------------------------------------------------------+
slabinfo.kmalloc-32.active_slabs
450 ++--------------------------------------------------------------------+
| |
400 O+ O O O O |
350 ++ |
| |
300 ++ |
| |
250 ++ |
| O O O O O O O O O O O |
200 ++ O |
150 ++ |
| |
100 ++ |
| .*.*..*..*.*..*..*..*. .*..*.*..*..*.*..*..*..*.*..*..*.*..*
50 *+----------------------*--*--*-*-------------------------------------+
slabinfo.kmalloc-32.num_slabs
450 ++--------------------------------------------------------------------+
| |
400 O+ O O O O |
350 ++ |
| |
300 ++ |
| |
250 ++ |
| O O O O O O O O O O O |
200 ++ O |
150 ++ |
| |
100 ++ |
| .*.*..*..*.*..*..*..*. .*..*.*..*..*.*..*..*..*.*..*..*.*..*
50 *+----------------------*--*--*-*-------------------------------------+
[*] 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" (3802 bytes)
View attachment "reproduce" of type "text/plain" (1352 bytes)
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