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Open Source and information security mailing list archives
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Date: Fri, 2 Nov 2018 09:32:41 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Roman Gushchin <guro@...com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Rik van Riel <riel@...riel.com>, Josef Bacik <jbacik@...com>,
Johannes Weiner <hannes@...xchg.org>,
Shakeel Butt <shakeelb@...gle.com>,
Michal Hocko <mhocko@...nel.org>,
Vladimir Davydov <vdavydov.dev@...il.com>,
Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>, lkp@...org
Subject: [LKP] [mm] 172b06c32b: fsmark.files_per_sec -2.0% regression
Greeting,
FYI, we noticed a -2.0% regression of fsmark.files_per_sec due to commit:
commit: 172b06c32b949759fe6313abec514bc4f15014f4 ("mm: slowly shrink slabs with a relatively small number of objects")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: fsmark
on test machine: 48 threads Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz with 64G memory
with following parameters:
iterations: 1x
nr_threads: 64t
disk: 1BRD_48G
fs: btrfs
fs2: nfsv4
filesize: 4M
test_size: 40G
sync_method: fsyncBeforeClose
ucode: 0x42d
cpufreq_governor: performance
test-description: The fsmark is a file system benchmark to test synchronous write workloads, for example, mail servers workload.
test-url: https://sourceforge.net/projects/fsmark/
In addition to that, the commit also has significant impact on the following tests:
+------------------+-----------------------------------------------------------------------+
| testcase: change | vm-scalability: |
| test machine | 88 threads Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz with 128G memory |
| test parameters | cpufreq_governor=performance |
| | runtime=300s |
| | test=lru-file-mmap-read-rand |
+------------------+-----------------------------------------------------------------------+
| testcase: change | vm-scalability: |
| test machine | 88 threads Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz with 128G memory |
| test parameters | cpufreq_governor=performance |
| | runtime=300s |
| | test=lru-file-readtwice |
+------------------+-----------------------------------------------------------------------+
| testcase: change | fio-basic: |
| test machine | 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz with 128G memory |
| test parameters | bs=4k |
| | cpufreq_governor=performance |
| | disk=1SSD |
| | fs2=nfsv4 |
| | fs=ext4 |
| | ioengine=sync |
| | nr_task=8 |
| | runtime=300s |
| | rw=write |
| | test_size=512g |
| | ucode=0x3d |
+------------------+-----------------------------------------------------------------------+
| testcase: change | vm-scalability: vm-scalability.median -1.5% improvement |
| test machine | 80 threads Skylake with 64G memory |
| test parameters | cpufreq_governor=performance |
| | runtime=300s |
| | test=lru-file-readonce |
+------------------+-----------------------------------------------------------------------+
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
=========================================================================================
compiler/cpufreq_governor/disk/filesize/fs2/fs/iterations/kconfig/nr_threads/rootfs/sync_method/tbox_group/test_size/testcase/ucode:
gcc-7/performance/1BRD_48G/4M/nfsv4/btrfs/1x/x86_64-rhel-7.2/64t/debian-x86_64-2018-04-03.cgz/fsyncBeforeClose/ivb44/40G/fsmark/0x42d
commit:
3bf181bc5d ("kernel/sys.c: remove duplicated include")
172b06c32b ("mm: slowly shrink slabs with a relatively small number of objects")
3bf181bc5d8bc86f 172b06c32b949759fe6313abec
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
:4 25% 1:4 dmesg.WARNING:at_ip__slab_free/0x
0:4 1% 0:4 perf-profile.children.cycles-pp.schedule_timeout
%stddev %change %stddev
\ | \
554.27 -2.0% 542.92 fsmark.files_per_sec
186948 ± 6% -53.5% 87005 ± 7% numa-vmstat.node0
187962 ± 3% -57.0% 80754 ± 9% numa-vmstat.node1
3338 ± 4% -52.4% 1588 ± 57% numa-vmstat.node1.workingset_refault
164.50 ± 4% +1047.3% 1887 ± 5% nfsstat.Client.nfs.v4.access
0.25 ±173% +1000.0% 2.75 ± 15% nfsstat.Client.nfs.v4.access.percent
58.00 +211.2% 180.50 ± 9% nfsstat.Client.nfs.v4.create
5450 ± 4% +30.3% 7102 ± 3% nfsstat.Server.nfs.v4.operations.access
3.00 +33.3% 4.00 nfsstat.Server.nfs.v4.operations.access.percent
58.00 +210.8% 180.25 ± 9% nfsstat.Server.nfs.v4.operations.create
2.664e+09 +2.5% 2.731e+09 perf-stat.cache-misses
5.774e+09 +3.2% 5.96e+09 ± 2% perf-stat.cache-references
3588012 +3.5% 3713986 perf-stat.context-switches
8.779e+08 +3.7% 9.104e+08 ± 2% perf-stat.node-loads
17.16 ± 3% +1.3 18.47 ± 3% perf-stat.node-store-miss-rate%
3.888e+08 ± 5% +12.0% 4.354e+08 ± 4% perf-stat.node-store-misses
1.876e+09 ± 2% +2.4% 1.922e+09 perf-stat.node-stores
108.71 ± 8% -25.7% 80.80 ± 18% sched_debug.cfs_rq:/.load_avg.avg
274.38 ± 5% -19.4% 221.05 ± 13% sched_debug.cfs_rq:/.load_avg.stddev
2200 ± 18% -55.8% 972.90 ± 71% sched_debug.cfs_rq:/.removed.runnable_sum.avg
9879 ± 8% -42.7% 5658 ± 61% sched_debug.cfs_rq:/.removed.runnable_sum.stddev
16.59 ± 23% -63.0% 6.14 ± 69% sched_debug.cfs_rq:/.removed.util_avg.avg
407.75 ± 16% -44.9% 224.75 ± 57% sched_debug.cfs_rq:/.removed.util_avg.max
75.95 ± 13% -52.7% 35.90 ± 60% sched_debug.cfs_rq:/.removed.util_avg.stddev
3728 ± 6% +163.5% 9824 ± 93% sched_debug.cfs_rq:/.runnable_weight.avg
34.85 ± 10% +73.1% 60.32 ± 21% sched_debug.cfs_rq:/.util_est_enqueued.avg
119.21 ± 3% +35.2% 161.20 ± 13% sched_debug.cfs_rq:/.util_est_enqueued.stddev
5941092 +2.6% 6098104 proc-vmstat.nr_file_pages
5668396 +2.7% 5824121 proc-vmstat.nr_inactive_file
33843 -1.3% 33408 proc-vmstat.nr_slab_unreclaimable
5668429 +2.7% 5824050 proc-vmstat.nr_zone_inactive_file
2304515 ± 14% +28.6% 2964651 ± 12% proc-vmstat.numa_foreign
29917905 -2.2% 29249794 proc-vmstat.numa_hit
29908107 -2.2% 29240012 proc-vmstat.numa_local
2304515 ± 14% +28.6% 2964651 ± 12% proc-vmstat.numa_miss
2314313 ± 14% +28.5% 2974432 ± 12% proc-vmstat.numa_other
35938 ± 9% +36.9% 49187 ± 5% proc-vmstat.pgactivate
595040 ± 4% +25.6% 747079 ± 3% proc-vmstat.slabs_scanned
0.21 ± 8% -0.1 0.15 ± 19% perf-profile.children.cycles-pp.nfs_get_lock_context
0.36 ± 8% -0.0 0.31 ± 4% perf-profile.children.cycles-pp.radix_tree_tag_clear
0.53 ± 5% -0.0 0.49 ± 6% perf-profile.children.cycles-pp.sched_ttwu_pending
0.08 ± 8% -0.0 0.05 ± 58% perf-profile.children.cycles-pp.ktime_get_update_offsets_now
0.13 ± 3% -0.0 0.11 ± 11% perf-profile.children.cycles-pp.read_tsc
0.10 ± 4% -0.0 0.08 ± 5% perf-profile.children.cycles-pp.iov_iter_fault_in_readable
0.08 ± 5% -0.0 0.07 ± 10% perf-profile.children.cycles-pp.replace_slot
0.07 ± 7% -0.0 0.05 ± 8% perf-profile.children.cycles-pp.__set_extent_bit
0.07 ± 20% +0.0 0.10 ± 5% perf-profile.children.cycles-pp.__switch_to
0.15 ± 10% +0.0 0.17 ± 4% perf-profile.children.cycles-pp.btrfs_commit_transaction
0.04 ± 58% +0.0 0.07 ± 6% perf-profile.children.cycles-pp.finish_task_switch
0.24 ± 9% +0.0 0.27 ± 10% perf-profile.children.cycles-pp.find_busiest_group
0.33 ± 8% +0.0 0.37 ± 3% perf-profile.children.cycles-pp.iov_iter_advance
0.36 ± 5% +0.0 0.40 ± 5% perf-profile.children.cycles-pp.nfs_scan_commit
0.00 +0.1 0.05 ± 9% perf-profile.children.cycles-pp.link_path_walk
0.23 ± 7% +0.1 0.29 ± 9% perf-profile.children.cycles-pp.mutex_spin_on_owner
0.12 ± 4% -0.0 0.10 ± 8% perf-profile.self.cycles-pp.read_tsc
0.08 ± 8% -0.0 0.06 ± 11% perf-profile.self.cycles-pp.replace_slot
0.10 -0.0 0.08 ± 5% perf-profile.self.cycles-pp.iov_iter_fault_in_readable
0.06 ± 59% +0.0 0.10 ± 5% perf-profile.self.cycles-pp.__switch_to
0.23 ± 6% +0.1 0.29 ± 9% perf-profile.self.cycles-pp.mutex_spin_on_owner
1271 ± 8% -25.1% 951.50 ± 11% slabinfo.UNIX.active_objs
1271 ± 8% -25.1% 951.50 ± 11% slabinfo.UNIX.num_objs
28364 ± 3% -11.5% 25088 ± 4% slabinfo.anon_vma_chain.active_objs
28478 ± 3% -11.8% 25116 ± 4% slabinfo.anon_vma_chain.num_objs
5160 +13.0% 5833 slabinfo.btrfs_extent_buffer.active_objs
5160 +13.0% 5833 slabinfo.btrfs_extent_buffer.num_objs
63565 -13.7% 54861 slabinfo.dentry.active_objs
1582 -12.2% 1388 slabinfo.dentry.active_slabs
66458 -12.2% 58340 slabinfo.dentry.num_objs
1582 -12.2% 1388 slabinfo.dentry.num_slabs
821.75 ± 8% -18.3% 671.25 ± 4% slabinfo.file_lock_cache.active_objs
821.75 ± 8% -18.3% 671.25 ± 4% slabinfo.file_lock_cache.num_objs
10074 -18.1% 8251 ± 2% slabinfo.kmalloc-96.active_objs
10155 -9.6% 9177 ± 2% slabinfo.kmalloc-96.num_objs
1241 ± 4% -12.0% 1092 ± 7% slabinfo.nsproxy.active_objs
1241 ± 4% -12.0% 1092 ± 7% slabinfo.nsproxy.num_objs
6642 ± 3% -17.7% 5468 ± 5% slabinfo.proc_inode_cache.active_objs
7105 ± 4% -19.3% 5734 ± 4% slabinfo.proc_inode_cache.num_objs
2449 ± 4% -16.9% 2035 ± 9% slabinfo.sock_inode_cache.active_objs
2449 ± 4% -16.9% 2035 ± 9% slabinfo.sock_inode_cache.num_objs
22286 ± 3% -11.1% 19819 ± 6% slabinfo.vm_area_struct.active_objs
22396 ± 3% -11.4% 19832 ± 6% slabinfo.vm_area_struct.num_objs
nfsstat.Client.nfs.v4.create
240 +-+-------------------------------------------------------------------+
220 +-+ O |
| O
200 +-+ O |
180 +-+ O O |
O O O O O |
160 +-+ O |
140 +-+ O |
120 +-+ |
| |
100 +-+ |
80 +-+ O O |
| |
60 +-+..+.....+....+.....+....+....+.....+....+....+.....+ |
40 +-+-------------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
***************************************************************************************************
lkp-bdw-ep2: 88 threads Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz with 128G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/rootfs/runtime/tbox_group/test/testcase:
gcc-7/performance/x86_64-rhel-7.2/debian-x86_64-2018-04-03.cgz/300s/lkp-bdw-ep2/lru-file-mmap-read-rand/vm-scalability
commit:
3bf181bc5d ("kernel/sys.c: remove duplicated include")
172b06c32b ("mm: slowly shrink slabs with a relatively small number of objects")
3bf181bc5d8bc86f 172b06c32b949759fe6313abec
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
:4 25% 1:4 dmesg.WARNING:at_ip___perf_sw_event/0x
1:4 1% 1:4 perf-profile.children.cycles-pp.error_entry
%stddev %change %stddev
\ | \
0.08 ± 17% +900.8% 0.82 vm-scalability.stddev
375.98 -13.7% 324.35 vm-scalability.time.elapsed_time
375.98 -13.7% 324.35 vm-scalability.time.elapsed_time.max
6877 +16.3% 8001 vm-scalability.time.percent_of_cpu_this_job_got
-6.04 +32.4% -8.00 sched_debug.cpu.nr_uninterruptible.min
110.40 ± 5% -9.1% 100.31 ± 4% sched_debug.cpu.sched_goidle.avg
20.53 ± 2% -12.8 7.71 ± 6% mpstat.cpu.idle%
78.48 +12.7 91.14 mpstat.cpu.sys%
0.95 +0.2 1.11 mpstat.cpu.usr%
922231 ± 7% -16.5% 769963 ± 6% softirqs.RCU
1059821 ± 2% -54.4% 483561 ± 4% softirqs.SCHED
13106616 -13.5% 11333791 softirqs.TIMER
1374581 ±168% -98.3% 23531 ± 13% cpuidle.C1.usage
15076756 ±146% +609.5% 1.07e+08 ± 68% cpuidle.C1E.time
175945 ±149% +497.9% 1051915 ± 66% cpuidle.C1E.usage
4370309 ±172% -99.7% 11986 ± 17% cpuidle.POLL.time
68855 ±170% -99.3% 484.75 ± 3% cpuidle.POLL.usage
31836 ± 5% -16.8% 26475 ± 7% meminfo.CmaFree
84746786 +19.1% 1.009e+08 meminfo.Mapped
17222404 ± 3% -38.8% 10542322 ± 5% meminfo.MemFree
1458 ± 42% -69.0% 452.25 ±160% meminfo.Mlocked
6445479 +19.0% 7671618 meminfo.PageTables
7.00 +85.7% 13.00 ± 38% vmstat.memory.buff
15720060 ± 3% -38.4% 9687227 ± 5% vmstat.memory.free
71.50 +16.4% 83.25 vmstat.procs.r
3837 +10.2% 4229 vmstat.system.cs
371229 +8.6% 402988 vmstat.system.in
56.00 +224.1% 181.50 ± 39% slabinfo.btrfs_extent_map.active_objs
56.00 +224.1% 181.50 ± 39% slabinfo.btrfs_extent_map.num_objs
9569 ± 8% -13.6% 8263 ± 6% slabinfo.kmalloc-512.num_objs
1258 ± 3% +8.8% 1369 ± 4% slabinfo.nsproxy.active_objs
1258 ± 3% +8.8% 1369 ± 4% slabinfo.nsproxy.num_objs
10548 ± 5% -21.0% 8338 ± 14% slabinfo.proc_inode_cache.active_objs
11057 ± 5% -23.2% 8487 ± 14% slabinfo.proc_inode_cache.num_objs
884481 ± 6% +12.7% 996793 numa-meminfo.node0.Active
730964 ± 2% +10.0% 803893 ± 5% numa-meminfo.node0.Active(file)
7743 ± 12% +22.1% 9452 ± 8% numa-meminfo.node0.KernelStack
41822458 +19.1% 49809098 numa-meminfo.node0.Mapped
9000212 -39.3% 5463666 ± 5% numa-meminfo.node0.MemFree
814.25 ± 42% -67.8% 262.50 ±160% numa-meminfo.node0.Mlocked
3207907 +19.7% 3838678 numa-meminfo.node0.PageTables
42192684 +19.7% 50502818 numa-meminfo.node1.Mapped
8659926 ± 8% -36.4% 5511081 ± 4% numa-meminfo.node1.MemFree
3181250 ± 2% +19.0% 3786464 numa-meminfo.node1.PageTables
2244 +15.5% 2591 turbostat.Avg_MHz
80.54 +12.3 92.81 turbostat.Busy%
1369577 ±169% -98.8% 16378 ± 21% turbostat.C1
173829 ±151% +503.8% 1049549 ± 66% turbostat.C1E
8.53 ± 21% -63.4% 3.12 ± 9% turbostat.CPU%c1
48.50 ± 4% +19.1% 57.75 ± 2% turbostat.CoreTmp
5.97 ± 6% -73.7% 1.57 ± 7% turbostat.Pkg%pc2
52.75 ± 3% +18.0% 62.25 turbostat.PkgTmp
209.42 +7.3% 224.61 turbostat.PkgWatt
19.61 +6.4% 20.88 turbostat.RAMWatt
28.01 +1.0 29.04 perf-stat.cache-miss-rate%
1.423e+11 -2.9% 1.381e+11 perf-stat.cache-references
1450633 -4.8% 1380444 perf-stat.context-switches
0.04 ± 3% -0.0 0.03 perf-stat.dTLB-store-miss-rate%
6.336e+08 ± 4% -11.0% 5.641e+08 perf-stat.dTLB-store-misses
1.719e+12 -1.7% 1.689e+12 perf-stat.dTLB-stores
2.679e+09 -2.5% 2.612e+09 perf-stat.iTLB-load-misses
8281 +2.5% 8491 perf-stat.instructions-per-iTLB-miss
917769 -12.1% 806944 perf-stat.minor-faults
43.94 +0.7 44.63 perf-stat.node-store-miss-rate%
3.44e+09 +2.1% 3.514e+09 perf-stat.node-store-misses
182104 ± 2% +10.3% 200837 ± 5% numa-vmstat.node0.nr_active_file
2280457 ± 2% -39.5% 1379202 ± 5% numa-vmstat.node0.nr_free_pages
371.75 +19.4% 444.00 ± 2% numa-vmstat.node0.nr_isolated_file
7740 ± 12% +22.1% 9448 ± 8% numa-vmstat.node0.nr_kernel_stack
10407177 +19.6% 12442787 numa-vmstat.node0.nr_mapped
204.25 ± 42% -68.3% 64.75 ±161% numa-vmstat.node0.nr_mlock
798441 +20.1% 958633 numa-vmstat.node0.nr_page_table_pages
182117 ± 2% +10.3% 200831 ± 5% numa-vmstat.node0.nr_zone_active_file
2.928e+08 -10.5% 2.621e+08 numa-vmstat.node0.numa_hit
2.928e+08 -10.5% 2.621e+08 numa-vmstat.node0.numa_local
83842853 -17.2% 69394085 numa-vmstat.node0.workingset_refault
8185 ± 5% -16.5% 6838 ± 7% numa-vmstat.node1.nr_free_cma
2193591 ± 8% -36.8% 1386047 ± 3% numa-vmstat.node1.nr_free_pages
387.25 +15.1% 445.75 ± 2% numa-vmstat.node1.nr_isolated_file
10499865 +20.2% 12620945 numa-vmstat.node1.nr_mapped
162.75 ± 44% -70.8% 47.50 ±161% numa-vmstat.node1.nr_mlock
791500 ± 2% +19.5% 945585 numa-vmstat.node1.nr_page_table_pages
2.94e+08 -10.4% 2.633e+08 numa-vmstat.node1.numa_hit
2.938e+08 -10.4% 2.632e+08 numa-vmstat.node1.numa_local
84630360 -16.8% 70439466 numa-vmstat.node1.workingset_refault
1.77 ± 2% -0.4 1.38 ± 12% perf-profile.calltrace.cycles-pp.shrink_inactive_list.shrink_node_memcg.shrink_node.kswapd.kthread
1.78 ± 2% -0.4 1.39 ± 12% perf-profile.calltrace.cycles-pp.shrink_node.kswapd.kthread.ret_from_fork
1.78 ± 2% -0.4 1.39 ± 12% perf-profile.calltrace.cycles-pp.shrink_node_memcg.shrink_node.kswapd.kthread.ret_from_fork
1.78 ± 2% -0.4 1.39 ± 12% perf-profile.calltrace.cycles-pp.kswapd.kthread.ret_from_fork
0.61 ± 6% -0.3 0.28 ±100% perf-profile.calltrace.cycles-pp.shrink_page_list.shrink_inactive_list.shrink_node_memcg.shrink_node.kswapd
1.08 ± 5% -0.3 0.82 ± 12% perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.shrink_inactive_list.shrink_node_memcg.shrink_node.kswapd
0.98 -0.0 0.93 ± 2% perf-profile.calltrace.cycles-pp.isolate_lru_pages.shrink_inactive_list.shrink_node_memcg.shrink_node.do_try_to_free_pages
90.34 +0.3 90.63 perf-profile.calltrace.cycles-pp.__do_fault.__handle_mm_fault.handle_mm_fault.__do_page_fault.do_page_fault
90.03 +0.3 90.33 perf-profile.calltrace.cycles-pp.filemap_fault.__xfs_filemap_fault.__do_fault.__handle_mm_fault.handle_mm_fault
90.23 +0.3 90.53 perf-profile.calltrace.cycles-pp.__xfs_filemap_fault.__do_fault.__handle_mm_fault.handle_mm_fault.__do_page_fault
1.78 ± 2% -0.4 1.39 ± 12% perf-profile.children.cycles-pp.kswapd
1.04 -0.1 0.99 ± 2% perf-profile.children.cycles-pp.isolate_lru_pages
0.81 -0.0 0.76 ± 2% perf-profile.children.cycles-pp.__isolate_lru_page
0.15 ± 3% -0.0 0.14 ± 5% perf-profile.children.cycles-pp.__might_sleep
90.05 +0.3 90.34 perf-profile.children.cycles-pp.filemap_fault
90.34 +0.3 90.63 perf-profile.children.cycles-pp.__do_fault
90.24 +0.3 90.53 perf-profile.children.cycles-pp.__xfs_filemap_fault
0.81 -0.0 0.76 ± 2% perf-profile.self.cycles-pp.__isolate_lru_page
0.26 -0.0 0.24 ± 2% perf-profile.self.cycles-pp.page_mapping
2239 -6.3% 2098 ± 3% proc-vmstat.allocstall_normal
87129 -2.7% 84785 proc-vmstat.nr_active_anon
373892 +7.5% 402117 proc-vmstat.nr_active_file
2853538 -1.5% 2810660 proc-vmstat.nr_dirty_background_threshold
5714059 -1.5% 5628198 proc-vmstat.nr_dirty_threshold
24660939 +4.9% 25873984 proc-vmstat.nr_file_pages
8008 ± 4% -17.0% 6644 ± 8% proc-vmstat.nr_free_cma
4326996 ± 2% -38.0% 2681477 ± 4% proc-vmstat.nr_free_pages
24021387 +4.9% 25208284 proc-vmstat.nr_inactive_file
771.75 +16.4% 898.00 proc-vmstat.nr_isolated_file
15610 +3.2% 16107 proc-vmstat.nr_kernel_stack
21160671 +18.8% 25142084 proc-vmstat.nr_mapped
365.25 ± 42% -68.9% 113.75 ±161% proc-vmstat.nr_mlock
1608928 +18.8% 1910614 proc-vmstat.nr_page_table_pages
40353 -6.4% 37773 proc-vmstat.nr_shmem
2143633 +5.8% 2267588 proc-vmstat.nr_slab_reclaimable
87131 -2.7% 84787 proc-vmstat.nr_zone_active_anon
373892 +7.5% 402072 proc-vmstat.nr_zone_active_file
24021338 +4.9% 25208211 proc-vmstat.nr_zone_inactive_file
76784100 ± 4% +8.7% 83481509 ± 4% proc-vmstat.numa_foreign
76784100 ± 4% +8.7% 83481509 ± 4% proc-vmstat.numa_miss
76801213 ± 4% +8.7% 83498734 ± 4% proc-vmstat.numa_other
2188 +24.9% 2733 ± 17% proc-vmstat.pgpgin
24609 +723.0% 202542 ± 26% proc-vmstat.slabs_scanned
243402 -6.3% 228035 proc-vmstat.workingset_activate
1.665e+08 -16.0% 1.399e+08 proc-vmstat.workingset_refault
***************************************************************************************************
lkp-bdw-ep2: 88 threads Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz with 128G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/rootfs/runtime/tbox_group/test/testcase:
gcc-7/performance/x86_64-rhel-7.2/debian-x86_64-2018-04-03.cgz/300s/lkp-bdw-ep2/lru-file-readtwice/vm-scalability
commit:
3bf181bc5d ("kernel/sys.c: remove duplicated include")
172b06c32b ("mm: slowly shrink slabs with a relatively small number of objects")
3bf181bc5d8bc86f 172b06c32b949759fe6313abec
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
1:4 -25% :4 dmesg.WARNING:at_ip_fsnotify/0x
1:4 -25% :4 dmesg.page_allocation_failure:order:#,mode:#(GFP_KERNEL|__GFP_COMP),nodemask=(null)
%stddev %change %stddev
\ | \
332.32 -7.6% 307.22 vm-scalability.time.elapsed_time
332.32 -7.6% 307.22 vm-scalability.time.elapsed_time.max
106418 +0.6% 107079 vm-scalability.time.minor_page_faults
7137 +8.3% 7731 vm-scalability.time.percent_of_cpu_this_job_got
2087 ± 12% -10.0% 1879 boot-time.idle
354695 +2.7% 364398 interrupts.CAL:Function_call_interrupts
9.96 -8.0 1.97 ± 40% mpstat.cpu.idle%
429.04 +4.1% 446.76 pmeter.Average_Active_Power
45161 -4.1% 43310 pmeter.performance_per_watt
12174 ± 12% -25.1% 9113 ± 3% softirqs.NET_RX
601034 -47.7% 314172 ± 4% softirqs.SCHED
15.33 ± 3% +10.9% 17.00 vmstat.memory.buff
8576157 ± 3% -47.5% 4502812 ± 11% vmstat.memory.free
23322 ± 2% +10.0% 25653 vmstat.system.cs
87.85 ± 5% -15.1% 74.58 ± 4% sched_debug.cfs_rq:/.load_avg.avg
5.61 ± 76% -72.3% 1.55 ± 70% sched_debug.cfs_rq:/.removed.load_avg.avg
489.37 ± 2% -14.4% 418.87 ± 9% sched_debug.cfs_rq:/.util_avg.min
229709 ± 28% -36.1% 146855 ± 17% sched_debug.cpu.avg_idle.min
-10.70 -18.4% -8.73 sched_debug.cpu.nr_uninterruptible.min
86559079 ± 3% +10.8% 95947528 ± 3% meminfo.Active
86196115 ± 3% +10.9% 95600785 ± 3% meminfo.Active(file)
1.067e+08 +10.5% 1.179e+08 meminfo.Cached
41444 ± 8% -37.4% 25936 ± 9% meminfo.CmaFree
22403260 ± 5% -49.6% 11282311 ± 10% meminfo.MemFree
12931 ± 2% +23.0% 15906 meminfo.PageTables
169713 -14.5% 145059 ± 2% meminfo.Shmem
2527 +8.0% 2730 turbostat.Avg_MHz
3.89 ± 26% -72.5% 1.07 ± 25% turbostat.CPU%c1
57.33 +13.4% 65.00 ± 2% turbostat.CoreTmp
2.92 ± 13% -90.9% 0.27 ± 41% turbostat.Pkg%pc2
62.00 +11.3% 69.00 ± 2% turbostat.PkgTmp
221.76 +4.8% 232.41 turbostat.PkgWatt
22.55 +2.6% 23.14 turbostat.RAMWatt
41905986 ± 2% +13.4% 47529965 numa-meminfo.node0.Active
41738396 ± 2% +13.5% 47379816 numa-meminfo.node0.Active(file)
52477550 ± 2% +11.6% 58577116 numa-meminfo.node0.FilePages
8508 ± 14% +19.9% 10201 ± 15% numa-meminfo.node0.KernelStack
11971693 ± 10% -50.8% 5884484 ± 15% numa-meminfo.node0.MemFree
53895558 ± 2% +11.3% 59982766 numa-meminfo.node0.MemUsed
5408 ± 21% +57.9% 8541 ± 16% numa-meminfo.node0.PageTables
42248927 ± 4% +12.4% 47492120 ± 4% numa-meminfo.node1.Active
42057118 ± 4% +12.5% 47298241 ± 4% numa-meminfo.node1.Active(file)
52145205 +12.6% 58734118 numa-meminfo.node1.FilePages
12566901 ± 7% -51.7% 6069491 ± 8% numa-meminfo.node1.MemFree
53456806 +12.2% 59954211 numa-meminfo.node1.MemUsed
146856 ± 2% -7.2% 136327 ± 4% perf-stat.cpu-migrations
0.06 ± 10% -0.0 0.05 ± 8% perf-stat.dTLB-load-miss-rate%
3.703e+09 ± 10% -16.9% 3.075e+09 ± 8% perf-stat.dTLB-load-misses
0.01 ± 15% -0.0 0.01 ± 7% perf-stat.dTLB-store-miss-rate%
1.386e+08 ± 16% -29.7% 97420623 ± 7% perf-stat.dTLB-store-misses
1.621e+12 -1.3% 1.6e+12 perf-stat.dTLB-stores
29.38 ± 5% +3.6 33.00 ± 3% perf-stat.node-load-miss-rate%
7.545e+09 ± 4% +9.8% 8.284e+09 perf-stat.node-load-misses
1.815e+10 ± 3% -7.2% 1.684e+10 ± 4% perf-stat.node-loads
44.16 +0.9 45.08 perf-stat.node-store-miss-rate%
2.185e+09 +1.5% 2.218e+09 perf-stat.node-store-misses
2.763e+09 -2.2% 2.703e+09 perf-stat.node-stores
10390158 ± 2% +14.3% 11876538 numa-vmstat.node0.nr_active_file
13031472 ± 2% +12.0% 14601129 numa-vmstat.node0.nr_file_pages
3080338 ± 9% -50.9% 1513457 ± 9% numa-vmstat.node0.nr_free_pages
8498 ± 14% +20.0% 10197 ± 14% numa-vmstat.node0.nr_kernel_stack
1344 ± 21% +58.9% 2135 ± 15% numa-vmstat.node0.nr_page_table_pages
10390258 ± 2% +14.3% 11876727 numa-vmstat.node0.nr_zone_active_file
2.25e+08 ± 6% -26.7% 1.65e+08 ± 7% numa-vmstat.node0.numa_hit
2.25e+08 ± 6% -26.7% 1.65e+08 ± 7% numa-vmstat.node0.numa_local
25217978 ± 35% -43.9% 14136959 ± 30% numa-vmstat.node0.numa_miss
25230025 ± 35% -43.9% 14150587 ± 30% numa-vmstat.node0.numa_other
4189684 ± 38% -74.4% 1071151 ± 95% numa-vmstat.node0.workingset_activate
2317192 ± 19% -34.1% 1527788 ± 15% numa-vmstat.node0.workingset_nodereclaim
22321015 ± 62% -77.9% 4937981 ± 97% numa-vmstat.node0.workingset_refault
10477318 ± 4% +13.8% 11920806 ± 3% numa-vmstat.node1.nr_active_file
12940319 +13.8% 14725234 numa-vmstat.node1.nr_file_pages
11478 ± 8% -38.3% 7080 ± 4% numa-vmstat.node1.nr_free_cma
3236779 ± 6% -54.5% 1473557 ± 7% numa-vmstat.node1.nr_free_pages
576.00 ± 2% +46.5% 843.67 ± 4% numa-vmstat.node1.nr_isolated_file
10477296 ± 4% +13.8% 11920778 ± 3% numa-vmstat.node1.nr_zone_active_file
25309770 ± 35% -43.9% 14196144 ± 30% numa-vmstat.node1.numa_foreign
2.291e+08 ± 3% -31.2% 1.576e+08 ± 11% numa-vmstat.node1.numa_hit
2.289e+08 ± 3% -31.2% 1.575e+08 ± 11% numa-vmstat.node1.numa_local
1523557 ± 10% -48.7% 781744 ± 39% numa-vmstat.node1.workingset_nodereclaim
90427 -4.7% 86190 proc-vmstat.nr_active_anon
21346726 ± 3% +11.8% 23872297 ± 3% proc-vmstat.nr_active_file
67928 +3.4% 70261 proc-vmstat.nr_anon_pages
26547872 +10.9% 29438725 proc-vmstat.nr_file_pages
10585 ± 9% -37.8% 6579 ± 7% proc-vmstat.nr_free_cma
5732507 ± 7% -50.0% 2868488 ± 9% proc-vmstat.nr_free_pages
1313 ± 13% +27.6% 1675 ± 7% proc-vmstat.nr_isolated_file
17385 +8.4% 18851 proc-vmstat.nr_kernel_stack
3204 ± 3% +24.0% 3974 proc-vmstat.nr_page_table_pages
42275 ± 2% -15.2% 35864 ± 3% proc-vmstat.nr_shmem
475820 ± 3% -7.8% 438760 ± 6% proc-vmstat.nr_slab_reclaimable
90429 -4.7% 86195 proc-vmstat.nr_zone_active_anon
21346841 ± 3% +11.8% 23872490 ± 3% proc-vmstat.nr_zone_active_file
7.064e+08 -3.3% 6.832e+08 proc-vmstat.numa_hit
7.064e+08 -3.3% 6.832e+08 proc-vmstat.numa_local
2237 ± 42% -74.8% 563.67 ± 32% proc-vmstat.numa_pages_migrated
12679 ± 26% -56.1% 5568 ± 35% proc-vmstat.numa_pte_updates
7.76e+08 -2.7% 7.548e+08 proc-vmstat.pgalloc_normal
7.851e+08 -2.7% 7.641e+08 proc-vmstat.pgfree
286939 ± 71% +10680.7% 30934078 ± 2% proc-vmstat.pginodesteal
2302 ± 38% -96.5% 80.67 ± 23% proc-vmstat.pgmigrate_fail
66.67 ± 31% +1009.5% 739.67 ± 30% proc-vmstat.pgrotated
6.529e+08 -4.9% 6.21e+08 proc-vmstat.pgscan_direct
6.529e+08 -4.9% 6.21e+08 proc-vmstat.pgsteal_direct
7996387 ± 2% +8.0% 8637231 ± 2% proc-vmstat.slabs_scanned
5880794 ± 7% -34.7% 3840169 ± 9% proc-vmstat.workingset_activate
3779699 ± 6% -37.4% 2367951 ± 10% proc-vmstat.workingset_nodereclaim
30732651 ± 32% -58.3% 12802727 ± 22% proc-vmstat.workingset_refault
1.80 ± 57% -1.2 0.62 ± 72% perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.__get_free_pages.pgd_alloc.mm_init.__do_execve_file
1.80 ± 57% -1.2 0.62 ± 72% perf-profile.calltrace.cycles-pp.mm_init.__do_execve_file.__x64_sys_execve.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.80 ± 57% -1.2 0.62 ± 72% perf-profile.calltrace.cycles-pp.pgd_alloc.mm_init.__do_execve_file.__x64_sys_execve.do_syscall_64
1.80 ± 57% -1.2 0.62 ± 72% perf-profile.calltrace.cycles-pp.__get_free_pages.pgd_alloc.mm_init.__do_execve_file.__x64_sys_execve
18.82 -0.9 17.91 ± 4% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.shrink_inactive_list.shrink_node_memcg.shrink_node
17.50 ± 2% -0.9 16.63 ± 3% perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.shrink_inactive_list.shrink_node_memcg.shrink_node.do_try_to_free_pages
20.83 -0.6 20.22 perf-profile.calltrace.cycles-pp.shrink_inactive_list.shrink_node_memcg.shrink_node.do_try_to_free_pages.try_to_free_pages
2.92 ± 2% -0.1 2.82 perf-profile.calltrace.cycles-pp.iomap_readpage_actor.iomap_readpages_actor.iomap_apply.iomap_readpages.read_pages
2.14 ± 2% -0.1 2.05 perf-profile.calltrace.cycles-pp.memset_erms.iomap_readpage_actor.iomap_readpages_actor.iomap_apply.iomap_readpages
0.68 -0.0 0.67 perf-profile.calltrace.cycles-pp.__add_to_page_cache_locked.add_to_page_cache_lru.iomap_readpages_actor.iomap_apply.iomap_readpages
38.44 +1.3 39.75 perf-profile.calltrace.cycles-pp.shrink_node_memcg.shrink_node.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath
38.51 +1.4 39.96 perf-profile.calltrace.cycles-pp.shrink_node.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask
16.65 ± 3% +2.1 18.79 ± 3% perf-profile.calltrace.cycles-pp.shrink_active_list.shrink_node_memcg.shrink_node.do_try_to_free_pages.try_to_free_pages
16.10 ± 5% +2.2 18.34 ± 3% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.shrink_active_list.shrink_node_memcg.shrink_node
15.69 ± 4% +2.2 17.94 ± 3% perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.shrink_active_list.shrink_node_memcg.shrink_node.do_try_to_free_pages
34.48 ± 4% +2.4 36.91 ± 3% perf-profile.calltrace.cycles-pp.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask.__do_page_cache_readahead
34.50 ± 4% +2.4 36.93 ± 3% perf-profile.calltrace.cycles-pp.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead
37.52 ± 2% +2.5 39.98 ± 3% perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead.generic_file_read_iter.xfs_file_buffered_aio_read
36.63 ± 2% +2.7 39.30 ± 3% perf-profile.calltrace.cycles-pp.__alloc_pages_slowpath.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead.generic_file_read_iter
1.93 ± 48% -1.0 0.90 ± 18% perf-profile.children.cycles-pp.__x64_sys_execve
1.93 ± 48% -1.0 0.90 ± 18% perf-profile.children.cycles-pp.__do_execve_file
2.92 ± 2% -0.1 2.83 perf-profile.children.cycles-pp.iomap_readpage_actor
2.14 ± 2% -0.1 2.06 perf-profile.children.cycles-pp.memset_erms
0.59 ± 2% -0.0 0.55 ± 2% perf-profile.children.cycles-pp.__delete_from_page_cache
0.09 -0.0 0.06 perf-profile.children.cycles-pp.replace_slot
0.45 ± 2% -0.0 0.42 perf-profile.children.cycles-pp.__pagevec_lru_add_fn
0.24 ± 3% -0.0 0.22 ± 2% perf-profile.children.cycles-pp.__radix_tree_replace
0.18 ± 5% -0.0 0.16 perf-profile.children.cycles-pp.xfs_ilock
0.08 ± 6% +0.0 0.09 perf-profile.children.cycles-pp.workingset_update_node
0.13 ± 10% +0.0 0.17 ± 8% perf-profile.children.cycles-pp.__vfs_write
0.02 ±141% +0.0 0.06 ± 13% perf-profile.children.cycles-pp.cmd_record
0.66 +0.1 0.72 ± 2% perf-profile.children.cycles-pp.vfs_write
0.85 +0.1 0.91 ± 3% perf-profile.children.cycles-pp.ksys_write
0.00 +0.1 0.06 ± 16% perf-profile.children.cycles-pp.__softirqentry_text_start
0.07 ± 35% +0.1 0.18 ± 43% perf-profile.children.cycles-pp.do_shrink_slab
0.07 ± 35% +0.1 0.18 ± 45% perf-profile.children.cycles-pp.shrink_slab
0.00 +0.1 0.13 ± 40% perf-profile.children.cycles-pp.list_lru_walk_one_irq
0.00 +0.1 0.13 ± 40% perf-profile.children.cycles-pp.__list_lru_walk_one
0.00 +0.1 0.13 ± 40% perf-profile.children.cycles-pp.shadow_lru_isolate
40.90 +1.6 42.51 ± 2% perf-profile.children.cycles-pp.shrink_node_memcg
36.35 ± 2% +1.6 37.99 ± 2% perf-profile.children.cycles-pp._raw_spin_lock_irq
40.99 +1.7 42.71 ± 2% perf-profile.children.cycles-pp.shrink_node
38.69 +1.8 40.46 ± 2% perf-profile.children.cycles-pp.try_to_free_pages
38.67 +1.8 40.44 ± 2% perf-profile.children.cycles-pp.do_try_to_free_pages
41.80 +1.8 43.60 ± 3% perf-profile.children.cycles-pp.__alloc_pages_nodemask
40.90 +2.0 42.91 ± 4% perf-profile.children.cycles-pp.__alloc_pages_slowpath
17.79 ± 4% +2.3 20.05 ± 3% perf-profile.children.cycles-pp.shrink_active_list
2.13 ± 2% -0.1 2.05 perf-profile.self.cycles-pp.memset_erms
0.09 ± 5% -0.0 0.05 ± 8% perf-profile.self.cycles-pp.replace_slot
0.35 ± 2% -0.0 0.33 perf-profile.self.cycles-pp.free_pcppages_bulk
0.07 +0.0 0.08 perf-profile.self.cycles-pp.workingset_update_node
0.06 ± 7% +0.0 0.08 ± 6% perf-profile.self.cycles-pp.shrink_active_list
***************************************************************************************************
lkp-hsw-ep2: 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz with 128G memory
=========================================================================================
bs/compiler/cpufreq_governor/disk/fs2/fs/ioengine/kconfig/nr_task/rootfs/runtime/rw/tbox_group/test_size/testcase/ucode:
4k/gcc-7/performance/1SSD/nfsv4/ext4/sync/x86_64-rhel-7.2/8/debian-x86_64-2018-04-03.cgz/300s/write/lkp-hsw-ep2/512g/fio-basic/0x3d
commit:
3bf181bc5d ("kernel/sys.c: remove duplicated include")
172b06c32b ("mm: slowly shrink slabs with a relatively small number of objects")
3bf181bc5d8bc86f 172b06c32b949759fe6313abec
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
:2 50% 1:2 dmesg.WARNING:at#for_ip_swapgs_restore_regs_and_return_to_usermode/0x
:2 50% 1:2 dmesg.WARNING:stack_recursion
***************************************************************************************************
lkp-skl-2sp2: 80 threads Skylake with 64G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/rootfs/runtime/tbox_group/test/testcase:
gcc-7/performance/x86_64-rhel-7.2/debian-x86_64-2018-04-03.cgz/300s/lkp-skl-2sp2/lru-file-readonce/vm-scalability
commit:
3bf181bc5d ("kernel/sys.c: remove duplicated include")
172b06c32b ("mm: slowly shrink slabs with a relatively small number of objects")
3bf181bc5d8bc86f 172b06c32b949759fe6313abec
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
1:4 -25% :4 dmesg.WARNING:at_ip_fsnotify/0x
%stddev %change %stddev
\ | \
273720 -1.5% 269667 vm-scalability.median
21908859 -1.5% 21588006 vm-scalability.throughput
211.81 -2.2% 207.25 vm-scalability.time.elapsed_time
211.81 -2.2% 207.25 vm-scalability.time.elapsed_time.max
491347 ± 8% -9.6% 444313 vm-scalability.time.involuntary_context_switches
7205 +4.1% 7501 vm-scalability.time.percent_of_cpu_this_job_got
14908 +1.8% 15179 vm-scalability.time.system_time
8.67 ± 4% -2.8 5.91 ± 9% mpstat.cpu.idle%
381265 ± 2% -15.6% 321682 ± 4% softirqs.SCHED
133688 ± 15% +24.8% 166796 vmstat.system.in
2835 +3.0% 2919 turbostat.Avg_MHz
385790 ± 98% -97.6% 9385 ± 10% turbostat.C1
25.08 +6.3% 26.67 ± 7% boot-time.boot
17.28 +2.8% 17.77 ± 2% boot-time.dhcp
1665 +6.9% 1780 ± 9% boot-time.idle
11349385 ± 7% +20.0% 13620869 ± 4% numa-numastat.node0.numa_miss
11349447 ± 7% +20.1% 13627432 ± 4% numa-numastat.node0.other_node
11349385 ± 7% +20.0% 13620869 ± 4% numa-numastat.node1.numa_foreign
23245346 ±103% -98.1% 446685 ± 8% cpuidle.C1.time
391056 ± 97% -96.4% 13942 ± 5% cpuidle.C1.usage
91033 ± 76% -93.8% 5676 ± 10% cpuidle.POLL.time
1628 ± 63% -85.8% 232.00 ± 14% cpuidle.POLL.usage
903.25 ± 2% -10.5% 808.25 slabinfo.inode_cache.active_slabs
48725 ± 2% -10.4% 43665 slabinfo.inode_cache.num_objs
903.25 ± 2% -10.5% 808.25 slabinfo.inode_cache.num_slabs
7889 ± 2% -22.2% 6134 ± 5% slabinfo.proc_inode_cache.active_objs
8314 -22.9% 6410 ± 6% slabinfo.proc_inode_cache.num_objs
6.06 +1.6% 6.16 perf-stat.cpi
4.78e+13 +1.5% 4.851e+13 perf-stat.cpu-cycles
18299 ± 17% -14.2% 15696 ± 3% perf-stat.cpu-migrations
0.11 ± 13% -0.0 0.07 ± 8% perf-stat.dTLB-store-miss-rate%
1.252e+09 ± 12% -41.6% 7.319e+08 ± 8% perf-stat.dTLB-store-misses
0.16 -1.5% 0.16 perf-stat.ipc
579179 -2.6% 564157 perf-stat.minor-faults
5.966e+08 ± 17% -12.0% 5.249e+08 perf-stat.node-load-misses
579181 -2.6% 564130 perf-stat.page-faults
4174 ± 7% +19.0% 4967 ± 4% proc-vmstat.kswapd_low_wmark_hit_quickly
12972 -1.6% 12764 proc-vmstat.nr_inactive_anon
2332 +2.3% 2387 proc-vmstat.nr_page_table_pages
22134 -3.4% 21380 proc-vmstat.nr_shmem
322945 -7.0% 300191 proc-vmstat.nr_slab_reclaimable
12972 -1.6% 12764 proc-vmstat.nr_zone_inactive_anon
4029 ± 55% -41.9% 2341 ± 52% proc-vmstat.numa_hint_faults
4178 ± 7% +18.9% 4970 ± 4% proc-vmstat.pageoutrun
2203 +2.8% 2265 proc-vmstat.pgpgin
89860749 ± 3% -8.8% 81938878 ± 3% proc-vmstat.pgscan_kswapd
89860664 ± 3% -8.8% 81938795 ± 3% proc-vmstat.pgsteal_kswapd
18891910 -3.2% 18286025 proc-vmstat.slabs_scanned
6953958 -2.3% 6796141 proc-vmstat.workingset_nodereclaim
199.50 ± 6% -18.0% 163.58 ± 13% sched_debug.cfs_rq:/.exec_clock.stddev
932.31 ± 5% -11.2% 827.75 ± 5% sched_debug.cfs_rq:/.load_avg.max
13.22 ± 9% +17.7% 15.56 ± 6% sched_debug.cfs_rq:/.nr_spread_over.avg
21.75 ± 11% -20.1% 17.38 ± 15% sched_debug.cfs_rq:/.runnable_load_avg.avg
631.62 ± 8% -34.5% 413.50 ± 19% sched_debug.cfs_rq:/.runnable_load_avg.max
82.41 ± 14% -35.4% 53.24 ± 24% sched_debug.cfs_rq:/.runnable_load_avg.stddev
107.73 ± 81% -66.8% 35.81 ± 15% sched_debug.cfs_rq:/.util_est_enqueued.avg
893.38 ± 18% -24.8% 671.69 ± 9% sched_debug.cfs_rq:/.util_est_enqueued.max
163.51 ± 12% -27.2% 119.09 ± 11% sched_debug.cfs_rq:/.util_est_enqueued.stddev
21.81 ± 11% -20.5% 17.33 ± 14% sched_debug.cpu.cpu_load[0].avg
632.25 ± 8% -34.7% 412.81 ± 19% sched_debug.cpu.cpu_load[0].max
82.46 ± 14% -35.6% 53.08 ± 24% sched_debug.cpu.cpu_load[0].stddev
630.31 ± 8% -31.2% 433.38 ± 21% sched_debug.cpu.cpu_load[1].max
82.02 ± 14% -33.0% 54.94 ± 26% sched_debug.cpu.cpu_load[1].stddev
630.00 ± 8% -27.9% 454.25 ± 21% sched_debug.cpu.cpu_load[2].max
81.88 ± 14% -31.0% 56.52 ± 27% sched_debug.cpu.cpu_load[2].stddev
22.57 ± 8% -20.9% 17.85 ± 15% sched_debug.cpu.cpu_load[3].avg
626.38 ± 9% -28.4% 448.62 ± 20% sched_debug.cpu.cpu_load[3].max
81.57 ± 13% -32.3% 55.20 ± 26% sched_debug.cpu.cpu_load[3].stddev
22.72 ± 7% -21.9% 17.74 ± 12% sched_debug.cpu.cpu_load[4].avg
648.12 ± 9% -30.5% 450.62 ± 18% sched_debug.cpu.cpu_load[4].max
83.79 ± 13% -34.6% 54.79 ± 24% sched_debug.cpu.cpu_load[4].stddev
4542 ± 3% -8.8% 4142 sched_debug.cpu.nr_switches.min
4252 ± 2% -12.0% 3741 sched_debug.cpu.sched_count.min
0.19 ±173% +4900.0% 9.38 ± 84% sched_debug.cpu.sched_goidle.min
1938 -11.2% 1720 sched_debug.cpu.ttwu_count.min
1829 -11.5% 1618 sched_debug.cpu.ttwu_local.min
12.73 ± 2% -1.4 11.37 ± 2% perf-profile.calltrace.cycles-pp.add_to_page_cache_lru.iomap_readpages_actor.iomap_apply.iomap_readpages.read_pages
9.92 ± 3% -1.3 8.58 ± 2% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.pagevec_lru_move_fn.__lru_cache_add.add_to_page_cache_lru
9.99 ± 2% -1.3 8.66 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.pagevec_lru_move_fn.__lru_cache_add.add_to_page_cache_lru.iomap_readpages_actor
11.19 ± 2% -1.3 9.86 ± 2% perf-profile.calltrace.cycles-pp.__lru_cache_add.add_to_page_cache_lru.iomap_readpages_actor.iomap_apply.iomap_readpages
11.10 ± 2% -1.3 9.78 ± 2% perf-profile.calltrace.cycles-pp.pagevec_lru_move_fn.__lru_cache_add.add_to_page_cache_lru.iomap_readpages_actor.iomap_apply
24.77 -1.1 23.69 perf-profile.calltrace.cycles-pp.iomap_readpages_actor.iomap_apply.iomap_readpages.read_pages.__do_page_cache_readahead
24.88 -1.1 23.80 perf-profile.calltrace.cycles-pp.iomap_readpages.read_pages.__do_page_cache_readahead.ondemand_readahead.generic_file_read_iter
24.90 -1.1 23.83 perf-profile.calltrace.cycles-pp.read_pages.__do_page_cache_readahead.ondemand_readahead.generic_file_read_iter.xfs_file_buffered_aio_read
24.86 -1.1 23.79 perf-profile.calltrace.cycles-pp.iomap_apply.iomap_readpages.read_pages.__do_page_cache_readahead.ondemand_readahead
8.91 ± 2% -0.6 8.29 perf-profile.calltrace.cycles-pp._raw_spin_lock.get_page_from_freelist.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead
8.90 ± 2% -0.6 8.28 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.get_page_from_freelist.__alloc_pages_nodemask.__do_page_cache_readahead
10.56 -0.6 9.96 perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead.generic_file_read_iter
40.64 -0.2 40.42 perf-profile.calltrace.cycles-pp.shrink_inactive_list.shrink_node_memcg.shrink_node.do_try_to_free_pages.try_to_free_pages
1.33 ± 2% -0.1 1.24 ± 2% perf-profile.calltrace.cycles-pp.free_unref_page_list.shrink_page_list.shrink_inactive_list.shrink_node_memcg.shrink_node
1.18 ± 3% -0.1 1.09 ± 2% perf-profile.calltrace.cycles-pp.free_pcppages_bulk.free_unref_page_list.shrink_page_list.shrink_inactive_list.shrink_node_memcg
0.87 -0.0 0.83 perf-profile.calltrace.cycles-pp.__delete_from_page_cache.__remove_mapping.shrink_page_list.shrink_inactive_list.shrink_node_memcg
1.45 -0.0 1.42 perf-profile.calltrace.cycles-pp.__add_to_page_cache_locked.add_to_page_cache_lru.iomap_readpages_actor.iomap_apply.iomap_readpages
1.71 +0.0 1.73 perf-profile.calltrace.cycles-pp.__entry_SYSCALL_64_trampoline
6.59 +0.2 6.78 perf-profile.calltrace.cycles-pp.memset_erms.iomap_readpage_actor.iomap_readpages_actor.iomap_apply.iomap_readpages
9.56 +0.2 9.77 perf-profile.calltrace.cycles-pp.copy_user_enhanced_fast_string.copyout.copy_page_to_iter.generic_file_read_iter.xfs_file_buffered_aio_read
9.63 +0.2 9.85 perf-profile.calltrace.cycles-pp.copyout.copy_page_to_iter.generic_file_read_iter.xfs_file_buffered_aio_read.xfs_file_read_iter
9.84 +0.2 10.07 perf-profile.calltrace.cycles-pp.copy_page_to_iter.generic_file_read_iter.xfs_file_buffered_aio_read.xfs_file_read_iter.__vfs_read
11.79 +0.3 12.06 perf-profile.calltrace.cycles-pp.iomap_readpage_actor.iomap_readpages_actor.iomap_apply.iomap_readpages.read_pages
54.10 +0.7 54.83 perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead.generic_file_read_iter.xfs_file_buffered_aio_read
43.36 +1.3 44.68 perf-profile.calltrace.cycles-pp.__alloc_pages_slowpath.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead.generic_file_read_iter
40.97 +1.4 42.35 perf-profile.calltrace.cycles-pp.shrink_node.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask
40.99 +1.4 42.37 perf-profile.calltrace.cycles-pp.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead
40.98 +1.4 42.36 perf-profile.calltrace.cycles-pp.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask.__do_page_cache_readahead
0.00 +1.7 1.68 ± 4% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.shadow_lru_isolate.__list_lru_walk_one.list_lru_walk_one_irq
0.00 +1.7 1.70 ± 4% perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.shadow_lru_isolate.__list_lru_walk_one.list_lru_walk_one_irq.do_shrink_slab
0.00 +1.9 1.86 ± 4% perf-profile.calltrace.cycles-pp.shadow_lru_isolate.__list_lru_walk_one.list_lru_walk_one_irq.do_shrink_slab.shrink_slab
0.00 +1.9 1.88 ± 4% perf-profile.calltrace.cycles-pp.__list_lru_walk_one.list_lru_walk_one_irq.do_shrink_slab.shrink_slab.shrink_node
0.00 +1.9 1.88 ± 4% perf-profile.calltrace.cycles-pp.list_lru_walk_one_irq.do_shrink_slab.shrink_slab.shrink_node.do_try_to_free_pages
0.00 +1.9 1.90 ± 4% perf-profile.calltrace.cycles-pp.shrink_slab.shrink_node.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath
0.00 +1.9 1.90 ± 4% perf-profile.calltrace.cycles-pp.do_shrink_slab.shrink_slab.shrink_node.do_try_to_free_pages.try_to_free_pages
12.74 ± 2% -1.4 11.37 ± 2% perf-profile.children.cycles-pp.add_to_page_cache_lru
11.20 ± 2% -1.3 9.87 ± 2% perf-profile.children.cycles-pp.__lru_cache_add
11.24 ± 2% -1.3 9.92 ± 2% perf-profile.children.cycles-pp.pagevec_lru_move_fn
11.46 ± 2% -1.3 10.19 ± 2% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
24.77 -1.1 23.69 perf-profile.children.cycles-pp.iomap_readpages_actor
24.88 -1.1 23.80 perf-profile.children.cycles-pp.iomap_readpages
24.86 -1.1 23.79 perf-profile.children.cycles-pp.iomap_apply
24.90 -1.1 23.84 perf-profile.children.cycles-pp.read_pages
10.06 ± 2% -0.7 9.32 ± 2% perf-profile.children.cycles-pp._raw_spin_lock
11.52 -0.6 10.89 perf-profile.children.cycles-pp.get_page_from_freelist
57.25 -0.5 56.75 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
0.21 -0.1 0.14 ± 3% perf-profile.children.cycles-pp.replace_slot
0.50 -0.0 0.45 perf-profile.children.cycles-pp.__radix_tree_replace
1.46 -0.0 1.42 perf-profile.children.cycles-pp.__add_to_page_cache_locked
0.99 -0.0 0.96 perf-profile.children.cycles-pp.__delete_from_page_cache
0.23 ± 4% -0.0 0.21 ± 4% perf-profile.children.cycles-pp.touch_atime
0.18 ± 6% -0.0 0.17 ± 5% perf-profile.children.cycles-pp.atime_needs_update
0.64 +0.0 0.67 ± 2% perf-profile.children.cycles-pp.security_file_permission
1.80 +0.0 1.83 perf-profile.children.cycles-pp.__entry_SYSCALL_64_trampoline
0.20 ± 9% +0.0 0.23 ± 3% perf-profile.children.cycles-pp.scheduler_tick
0.00 +0.1 0.05 perf-profile.children.cycles-pp.list_lru_add
0.28 ± 13% +0.1 0.34 ± 4% perf-profile.children.cycles-pp.tick_sched_handle
0.27 ± 13% +0.1 0.33 ± 4% perf-profile.children.cycles-pp.update_process_times
0.30 ± 14% +0.1 0.37 ± 5% perf-profile.children.cycles-pp.tick_sched_timer
0.61 ± 8% +0.1 0.69 ± 3% perf-profile.children.cycles-pp.smp_apic_timer_interrupt
0.73 ± 9% +0.1 0.83 ± 3% perf-profile.children.cycles-pp.apic_timer_interrupt
6.62 +0.2 6.80 perf-profile.children.cycles-pp.memset_erms
9.64 +0.2 9.85 perf-profile.children.cycles-pp.copyout
9.62 +0.2 9.84 perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
9.85 +0.2 10.07 perf-profile.children.cycles-pp.copy_page_to_iter
11.86 +0.3 12.14 perf-profile.children.cycles-pp.iomap_readpage_actor
54.38 +0.8 55.13 perf-profile.children.cycles-pp.__alloc_pages_nodemask
43.60 +1.4 44.96 perf-profile.children.cycles-pp.__alloc_pages_slowpath
41.23 +1.4 42.64 perf-profile.children.cycles-pp.try_to_free_pages
41.22 +1.4 42.62 perf-profile.children.cycles-pp.do_try_to_free_pages
42.96 +1.5 44.43 perf-profile.children.cycles-pp.shrink_node
36.13 +1.5 37.66 perf-profile.children.cycles-pp._raw_spin_lock_irq
0.29 +1.6 1.87 ± 4% perf-profile.children.cycles-pp.shadow_lru_isolate
0.33 +1.6 1.92 ± 4% perf-profile.children.cycles-pp.do_shrink_slab
0.30 +1.6 1.89 ± 4% perf-profile.children.cycles-pp.__list_lru_walk_one
0.33 +1.6 1.92 ± 4% perf-profile.children.cycles-pp.shrink_slab
0.30 +1.6 1.90 ± 4% perf-profile.children.cycles-pp.list_lru_walk_one_irq
57.24 -0.5 56.75 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
0.20 ± 2% -0.1 0.13 ± 3% perf-profile.self.cycles-pp.replace_slot
0.38 +0.0 0.40 perf-profile.self.cycles-pp.selinux_file_permission
0.42 ± 3% +0.1 0.49 ± 3% perf-profile.self.cycles-pp.generic_file_read_iter
6.54 +0.2 6.71 perf-profile.self.cycles-pp.memset_erms
9.51 +0.2 9.71 perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
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,
Rong Chen
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