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Date: Wed, 12 Aug 2020 17:15:32 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Johannes Weiner <hannes@...xchg.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
Joonsoo Kim <js1304@...il.com>,
Joonsoo Kim <iamjoonsoo.kim@....com>,
Rik van Riel <riel@...riel.com>,
Minchan Kim <minchan.kim@...il.com>,
Michal Hocko <mhocko@...e.com>,
Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org
Subject: [mm] 31d8fcac00: fio.read_iops 18.0% improvement
Greeting,
FYI, we noticed a 18.0% improvement of fio.read_iops due to commit:
commit: 31d8fcac00fcf4007f3921edc69ab4dcb3abcd4d ("mm: workingset: age nonresident information alongside anonymous pages")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: fio-basic
on test machine: 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 256G memory
with following parameters:
disk: 2pmem
fs: xfs
runtime: 200s
nr_task: 50%
time_based: tb
rw: read
bs: 4k
ioengine: sync
test_size: 200G
cpufreq_governor: performance
ucode: 0x5002f01
test-description: Fio is a tool that will spawn a number of threads or processes doing a particular type of I/O action as specified by the user.
test-url: https://github.com/axboe/fio
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
=========================================================================================
bs/compiler/cpufreq_governor/disk/fs/ioengine/kconfig/nr_task/rootfs/runtime/rw/tbox_group/test_size/testcase/time_based/ucode:
4k/gcc-9/performance/2pmem/xfs/sync/x86_64-rhel-8.3/50%/debian-10.4-x86_64-20200603.cgz/200s/read/lkp-csl-2sp6/200G/fio-basic/tb/0x5002f01
commit:
2a8bef3217 ("doc: THP CoW fault no longer allocate THP")
31d8fcac00 ("mm: workingset: age nonresident information alongside anonymous pages")
2a8bef321749219a 31d8fcac00fcf4007f3921edc69
---------------- ---------------------------
%stddev %change %stddev
\ | \
0.04 ± 2% -0.0 0.01 fio.latency_1000us%
0.02 ± 4% -0.0 0.01 ± 4% fio.latency_100us%
0.55 ± 5% -0.2 0.39 ± 10% fio.latency_10us%
0.02 ± 9% +0.0 0.03 fio.latency_20ms%
48.67 +1.1 49.76 fio.latency_2us%
0.69 +0.1 0.76 fio.latency_500us%
15586 +18.0% 18390 fio.read_bw_MBps
2440 ± 2% -4.9% 2320 fio.read_clat_95%_us
11139 ± 2% -16.1% 9351 fio.read_clat_mean_us
314765 ± 3% -31.2% 216687 fio.read_clat_stddev
3990106 +18.0% 4707899 fio.read_iops
6.387e+09 +18.0% 7.537e+09 fio.time.file_system_inputs
337062 +8.2% 364554 fio.time.involuntary_context_switches
288.56 ± 3% +12.5% 324.76 fio.time.user_time
23290 +4.3% 24298 ± 4% fio.time.voluntary_context_switches
7.984e+08 +18.0% 9.421e+08 fio.workload
2238 -1.4% 2207 boot-time.idle
1.50 ± 3% +12.3% 1.68 iostat.cpu.user
0.08 ± 2% +0.0 0.09 ± 2% mpstat.cpu.all.soft%
1.51 ± 3% +0.2 1.70 mpstat.cpu.all.usr%
15692892 +17.9% 18495671 vmstat.io.bi
5439 +6.5% 5793 vmstat.system.cs
3091110 ± 16% -45.6% 1682800 ± 51% sched_debug.cpu.nr_switches.max
362965 ± 8% -41.0% 214260 ± 46% sched_debug.cpu.nr_switches.stddev
52.21 ± 11% +103.8% 106.42 ± 30% sched_debug.cpu.nr_uninterruptible.max
3.523e+08 ± 4% +20.0% 4.228e+08 numa-numastat.node0.local_node
3.523e+08 ± 4% +20.0% 4.228e+08 numa-numastat.node0.numa_hit
3.762e+08 +17.6% 4.423e+08 numa-numastat.node1.local_node
3.762e+08 +17.6% 4.424e+08 numa-numastat.node1.numa_hit
216.00 ± 11% +137.5% 513.00 ± 52% slabinfo.xfs_btree_cur.active_objs
216.00 ± 11% +137.5% 513.00 ± 52% slabinfo.xfs_btree_cur.num_objs
325.50 ± 10% +41.9% 462.00 ± 22% slabinfo.xfs_buf.active_objs
325.50 ± 10% +41.9% 462.00 ± 22% slabinfo.xfs_buf.num_objs
186.50 ± 14% -25.2% 139.50 ± 6% numa-vmstat.node0.nr_isolated_file
1202194 ± 47% +2113.1% 26605889 ± 93% numa-vmstat.node1.nr_dirtied
1202190 ± 47% +2113.1% 26605886 ± 93% numa-vmstat.node1.nr_written
1.832e+08 +32.4% 2.425e+08 ± 10% numa-vmstat.node1.numa_hit
1.832e+08 +32.3% 2.424e+08 ± 10% numa-vmstat.node1.numa_local
16408 ± 17% -39.8% 9876 ± 12% softirqs.CPU16.SCHED
8006 ± 9% +25.7% 10061 ± 16% softirqs.CPU22.RCU
98861 ± 10% -19.5% 79540 ± 4% softirqs.CPU31.TIMER
10175 ± 13% +48.0% 15056 ± 19% softirqs.CPU39.SCHED
7196 ± 5% +24.1% 8932 ± 12% softirqs.CPU46.RCU
11185 ± 23% +26.3% 14131 ± 11% softirqs.CPU5.SCHED
14741 ± 30% +59.5% 23505 ± 10% softirqs.CPU64.SCHED
7005 ± 3% +50.6% 10548 ± 29% softirqs.CPU73.RCU
7179 ± 9% +47.9% 10619 ± 24% softirqs.CPU74.RCU
15477 ± 18% -20.3% 12335 ± 3% softirqs.CPU85.SCHED
18412 ± 18% -18.3% 15050 ± 11% softirqs.CPU86.SCHED
17781 ± 11% -34.3% 11677 ± 24% softirqs.CPU87.SCHED
212024 ± 2% +17.7% 249450 proc-vmstat.allocstall_movable
4332 ± 14% +33.2% 5773 ± 16% proc-vmstat.compact_daemon_wake
44.00 ± 32% +98.9% 87.50 ± 23% proc-vmstat.compact_fail
48.75 ± 34% +84.6% 90.00 ± 22% proc-vmstat.compact_stall
10203 ± 2% +18.7% 12107 ± 2% proc-vmstat.kswapd_low_wmark_hit_quickly
402.75 ± 6% -26.3% 296.75 ± 5% proc-vmstat.nr_isolated_file
70317824 ± 4% +10.6% 77758339 proc-vmstat.numa_foreign
7.281e+08 ± 2% +18.7% 8.645e+08 proc-vmstat.numa_hit
7.281e+08 ± 2% +18.7% 8.645e+08 proc-vmstat.numa_local
70317824 ± 4% +10.6% 77758339 proc-vmstat.numa_miss
70349397 ± 4% +10.6% 77789919 proc-vmstat.numa_other
10212 ± 2% +18.8% 12129 ± 2% proc-vmstat.pageoutrun
28389101 +17.9% 33470811 proc-vmstat.pgalloc_dma32
7.718e+08 +18.0% 9.105e+08 proc-vmstat.pgalloc_normal
7.902e+08 +18.2% 9.341e+08 proc-vmstat.pgfree
3.193e+09 +18.0% 3.767e+09 proc-vmstat.pgpgin
6685 ± 6% +39.3% 9312 ± 4% proc-vmstat.pgrotated
5.487e+08 ± 2% +17.6% 6.452e+08 proc-vmstat.pgscan_direct
6.059e+08 +18.6% 7.189e+08 proc-vmstat.pgscan_file
57228405 ± 4% +28.8% 73738107 ± 5% proc-vmstat.pgscan_kswapd
5.487e+08 ± 2% +17.6% 6.451e+08 proc-vmstat.pgsteal_direct
6.059e+08 +18.6% 7.189e+08 proc-vmstat.pgsteal_file
57226925 ± 4% +28.8% 73735659 ± 5% proc-vmstat.pgsteal_kswapd
76.25 ±163% -98.0% 1.50 ±173% interrupts.93:PCI-MSI.31981626-edge.i40e-eth0-TxRx-57
277.75 ± 26% +32.5% 368.00 ± 4% interrupts.CPU1.RES:Rescheduling_interrupts
6257 ± 10% +23.6% 7734 interrupts.CPU11.NMI:Non-maskable_interrupts
6257 ± 10% +23.6% 7734 interrupts.CPU11.PMI:Performance_monitoring_interrupts
286.00 ± 11% +35.0% 386.00 ± 3% interrupts.CPU11.RES:Rescheduling_interrupts
262.25 ± 22% +47.7% 387.25 ± 15% interrupts.CPU13.RES:Rescheduling_interrupts
602.75 ± 8% +15.1% 693.50 ± 6% interrupts.CPU14.CAL:Function_call_interrupts
264.50 ± 26% +36.5% 361.00 ± 14% interrupts.CPU14.RES:Rescheduling_interrupts
650.25 ± 6% +21.7% 791.50 ± 13% interrupts.CPU15.CAL:Function_call_interrupts
599.50 ± 8% +17.0% 701.50 ± 3% interrupts.CPU16.CAL:Function_call_interrupts
230.75 ± 23% +65.8% 382.50 ± 3% interrupts.CPU16.RES:Rescheduling_interrupts
644.25 +11.6% 719.00 ± 3% interrupts.CPU17.CAL:Function_call_interrupts
303.25 ± 8% +26.3% 383.00 ± 11% interrupts.CPU19.RES:Rescheduling_interrupts
320.25 ± 9% +21.5% 389.25 ± 12% interrupts.CPU20.RES:Rescheduling_interrupts
636.25 ± 5% +13.1% 719.50 ± 2% interrupts.CPU22.CAL:Function_call_interrupts
297.25 ± 10% +30.4% 387.75 ± 5% interrupts.CPU22.RES:Rescheduling_interrupts
657.25 ± 6% +12.2% 737.50 ± 10% interrupts.CPU23.CAL:Function_call_interrupts
2619 ± 74% +165.1% 6944 ± 10% interrupts.CPU23.NMI:Non-maskable_interrupts
2619 ± 74% +165.1% 6944 ± 10% interrupts.CPU23.PMI:Performance_monitoring_interrupts
330.50 ± 9% +27.5% 421.25 ± 6% interrupts.CPU23.RES:Rescheduling_interrupts
346.75 ± 5% -22.9% 267.25 ± 18% interrupts.CPU39.RES:Rescheduling_interrupts
269.00 ± 23% +26.3% 339.75 ± 6% interrupts.CPU4.RES:Rescheduling_interrupts
42.00 ± 23% +90.5% 80.00 ± 25% interrupts.CPU5.TLB:TLB_shootdowns
75.75 ±164% -98.0% 1.50 ±173% interrupts.CPU57.93:PCI-MSI.31981626-edge.i40e-eth0-TxRx-57
523.75 ± 8% +16.0% 607.75 ± 7% interrupts.CPU57.CAL:Function_call_interrupts
131.75 ± 27% +57.7% 207.75 ± 7% interrupts.CPU57.RES:Rescheduling_interrupts
240.25 ± 42% -43.5% 135.75 ± 35% interrupts.CPU64.RES:Rescheduling_interrupts
611.75 ± 5% +33.7% 818.00 ± 17% interrupts.CPU73.CAL:Function_call_interrupts
249.50 ± 17% +38.6% 345.75 ± 8% interrupts.CPU73.RES:Rescheduling_interrupts
263.50 ± 24% +26.0% 332.00 ± 4% interrupts.CPU74.RES:Rescheduling_interrupts
234.50 ± 20% +41.4% 331.50 ± 11% interrupts.CPU76.RES:Rescheduling_interrupts
259.00 ± 18% +46.4% 379.25 ± 4% interrupts.CPU8.RES:Rescheduling_interrupts
175.25 ± 27% +69.5% 297.00 ± 14% interrupts.CPU86.RES:Rescheduling_interrupts
592.50 ± 7% +24.6% 738.25 ± 14% interrupts.CPU87.CAL:Function_call_interrupts
4215 ± 28% +75.7% 7406 ± 3% interrupts.CPU87.NMI:Non-maskable_interrupts
4215 ± 28% +75.7% 7406 ± 3% interrupts.CPU87.PMI:Performance_monitoring_interrupts
179.00 ± 26% +88.4% 337.25 ± 18% interrupts.CPU87.RES:Rescheduling_interrupts
601.25 ± 9% +18.6% 713.25 ± 12% interrupts.CPU90.CAL:Function_call_interrupts
4802 ± 30% +53.8% 7387 ± 7% interrupts.CPU94.NMI:Non-maskable_interrupts
4802 ± 30% +53.8% 7387 ± 7% interrupts.CPU94.PMI:Performance_monitoring_interrupts
24537 +11.9% 27446 interrupts.RES:Rescheduling_interrupts
21.09 -5.3% 19.97 perf-stat.i.MPKI
1.064e+10 +13.8% 1.211e+10 perf-stat.i.branch-instructions
29423674 +13.8% 33475999 perf-stat.i.branch-misses
63.23 +4.3 67.56 perf-stat.i.cache-miss-rate%
7.081e+08 +16.0% 8.216e+08 perf-stat.i.cache-misses
1.115e+09 +8.7% 1.212e+09 perf-stat.i.cache-references
5428 +6.7% 5792 perf-stat.i.context-switches
2.61 -13.3% 2.26 perf-stat.i.cpi
124.06 +3.3% 128.15 perf-stat.i.cpu-migrations
201.52 -13.8% 173.78 perf-stat.i.cycles-between-cache-misses
1639762 ± 17% +31.5% 2156578 ± 11% perf-stat.i.dTLB-load-misses
1.287e+10 +14.3% 1.471e+10 perf-stat.i.dTLB-loads
1005363 ± 4% +22.4% 1230907 ± 5% perf-stat.i.dTLB-store-misses
7.217e+09 +17.7% 8.494e+09 perf-stat.i.dTLB-stores
78.13 -1.5 76.66 perf-stat.i.iTLB-load-miss-rate%
11916696 ± 2% +4.8% 12488907 ± 2% perf-stat.i.iTLB-load-misses
3329500 ± 2% +14.1% 3800235 ± 2% perf-stat.i.iTLB-loads
5.285e+10 +14.6% 6.059e+10 perf-stat.i.instructions
4426 +9.3% 4839 ± 2% perf-stat.i.instructions-per-iTLB-miss
0.39 +14.8% 0.44 perf-stat.i.ipc
334.33 +14.7% 383.33 perf-stat.i.metric.M/sec
32.99 ± 3% -4.4 28.56 ± 2% perf-stat.i.node-load-miss-rate%
41465839 ± 2% -9.2% 37638337 perf-stat.i.node-load-misses
85424362 ± 3% +11.7% 95403803 perf-stat.i.node-loads
25306603 ± 3% +6.5% 26954862 perf-stat.i.node-store-misses
93535434 ± 3% +11.4% 1.042e+08 perf-stat.i.node-stores
21.11 -5.2% 20.00 perf-stat.overall.MPKI
63.48 +4.3 67.79 perf-stat.overall.cache-miss-rate%
2.59 -13.0% 2.25 perf-stat.overall.cpi
193.30 -14.0% 166.22 perf-stat.overall.cycles-between-cache-misses
78.16 -1.5 76.67 perf-stat.overall.iTLB-load-miss-rate%
4435 +9.4% 4854 ± 2% perf-stat.overall.instructions-per-iTLB-miss
0.39 +14.9% 0.44 perf-stat.overall.ipc
32.70 ± 3% -4.4 28.29 ± 2% perf-stat.overall.node-load-miss-rate%
13283 -2.8% 12912 perf-stat.overall.path-length
1.059e+10 +13.8% 1.205e+10 perf-stat.ps.branch-instructions
29275920 +13.8% 33306390 perf-stat.ps.branch-misses
7.046e+08 +16.0% 8.176e+08 perf-stat.ps.cache-misses
1.11e+09 +8.7% 1.206e+09 perf-stat.ps.cache-references
5399 +6.7% 5762 perf-stat.ps.context-switches
123.68 +3.2% 127.60 perf-stat.ps.cpu-migrations
1632115 ± 17% +31.5% 2146796 ± 11% perf-stat.ps.dTLB-load-misses
1.281e+10 +14.3% 1.464e+10 perf-stat.ps.dTLB-loads
1000774 ± 4% +22.4% 1225428 ± 5% perf-stat.ps.dTLB-store-misses
7.182e+09 +17.7% 8.452e+09 perf-stat.ps.dTLB-stores
11857454 ± 2% +4.8% 12426582 ± 2% perf-stat.ps.iTLB-load-misses
3312649 ± 2% +14.1% 3780904 ± 2% perf-stat.ps.iTLB-loads
5.259e+10 +14.6% 6.029e+10 perf-stat.ps.instructions
41262577 ± 2% -9.2% 37449492 perf-stat.ps.node-load-misses
85001993 ± 3% +11.7% 94931612 perf-stat.ps.node-loads
25183856 ± 3% +6.5% 26811052 perf-stat.ps.node-store-misses
93070707 ± 3% +11.4% 1.037e+08 perf-stat.ps.node-stores
1.061e+13 +14.7% 1.216e+13 perf-stat.total.instructions
28.88 ± 12% -7.2 21.69 ± 13% perf-profile.calltrace.cycles-pp.shrink_lruvec.shrink_node.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath
28.84 ± 12% -7.2 21.66 ± 13% perf-profile.calltrace.cycles-pp.shrink_inactive_list.shrink_lruvec.shrink_node.do_try_to_free_pages.try_to_free_pages
29.18 ± 12% -7.2 22.02 ± 13% perf-profile.calltrace.cycles-pp.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask.page_cache_readahead_unbounded
29.18 ± 12% -7.2 22.02 ± 13% perf-profile.calltrace.cycles-pp.shrink_node.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask
29.20 ± 12% -7.2 22.04 ± 13% perf-profile.calltrace.cycles-pp.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask.page_cache_readahead_unbounded.generic_file_buffered_read
34.34 ± 12% -7.1 27.23 ± 13% perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.page_cache_readahead_unbounded.generic_file_buffered_read.xfs_file_buffered_aio_read.xfs_file_read_iter
29.56 ± 12% -7.1 22.45 ± 13% perf-profile.calltrace.cycles-pp.__alloc_pages_slowpath.__alloc_pages_nodemask.page_cache_readahead_unbounded.generic_file_buffered_read.xfs_file_buffered_aio_read
9.88 ± 14% -4.5 5.36 ± 13% perf-profile.calltrace.cycles-pp.__remove_mapping.shrink_page_list.shrink_inactive_list.shrink_lruvec.shrink_node
10.80 ± 12% -4.1 6.70 ± 13% perf-profile.calltrace.cycles-pp.shrink_page_list.shrink_inactive_list.shrink_lruvec.shrink_node.do_try_to_free_pages
17.53 ± 11% -3.2 14.38 ± 15% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.shrink_inactive_list.shrink_lruvec.shrink_node
17.09 ± 11% -3.0 14.13 ± 13% perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.shrink_inactive_list.shrink_lruvec.shrink_node.do_try_to_free_pages
5.26 ± 16% -2.2 3.08 ± 15% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__remove_mapping.shrink_page_list.shrink_inactive_list.shrink_lruvec
5.01 ± 16% -2.2 2.86 ± 15% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__remove_mapping.shrink_page_list.shrink_inactive_list
2.76 ± 13% -1.7 1.03 ± 11% perf-profile.calltrace.cycles-pp.workingset_eviction.__remove_mapping.shrink_page_list.shrink_inactive_list.shrink_lruvec
1.14 ± 11% -0.3 0.89 ± 12% perf-profile.calltrace.cycles-pp.__delete_from_page_cache.__remove_mapping.shrink_page_list.shrink_inactive_list.shrink_lruvec
0.85 ± 11% +0.2 1.05 ± 3% perf-profile.calltrace.cycles-pp.mem_cgroup_charge.__add_to_page_cache_locked.add_to_page_cache_lru.page_cache_readahead_unbounded.generic_file_buffered_read
0.26 ±100% +0.3 0.59 ± 13% perf-profile.calltrace.cycles-pp.free_unref_page_list.shrink_page_list.shrink_inactive_list.shrink_lruvec.shrink_node
30.25 ± 11% -7.4 22.81 ± 13% perf-profile.children.cycles-pp.shrink_inactive_list
30.27 ± 11% -7.4 22.84 ± 13% perf-profile.children.cycles-pp.shrink_lruvec
30.60 ± 11% -7.4 23.19 ± 13% perf-profile.children.cycles-pp.shrink_node
29.34 ± 11% -7.2 22.12 ± 13% perf-profile.children.cycles-pp.try_to_free_pages
29.33 ± 11% -7.2 22.11 ± 13% perf-profile.children.cycles-pp.do_try_to_free_pages
29.71 ± 11% -7.2 22.54 ± 13% perf-profile.children.cycles-pp.__alloc_pages_slowpath
34.55 ± 12% -7.2 27.39 ± 13% perf-profile.children.cycles-pp.__alloc_pages_nodemask
37.91 ± 8% -5.9 32.02 ± 12% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
10.41 ± 11% -4.4 6.00 ± 13% perf-profile.children.cycles-pp.__remove_mapping
11.50 ± 11% -4.3 7.25 ± 13% perf-profile.children.cycles-pp.shrink_page_list
18.06 ± 11% -3.1 14.99 ± 13% perf-profile.children.cycles-pp._raw_spin_lock_irq
16.47 ± 5% -2.8 13.69 ± 9% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
2.91 ± 13% -1.8 1.09 ± 11% perf-profile.children.cycles-pp.workingset_eviction
0.82 ± 11% -0.3 0.51 ± 11% perf-profile.children.cycles-pp.unaccount_page_cache_page
1.50 ± 10% -0.2 1.25 ± 12% perf-profile.children.cycles-pp.__delete_from_page_cache
0.33 ± 14% -0.1 0.20 ± 9% perf-profile.children.cycles-pp.__isolate_lru_page
0.17 ± 8% +0.0 0.20 ± 6% perf-profile.children.cycles-pp.shrink_slab
0.18 ± 6% +0.0 0.21 ± 6% perf-profile.children.cycles-pp.page_counter_try_charge
0.01 ±173% +0.0 0.06 ± 9% perf-profile.children.cycles-pp.kmem_cache_free
0.16 ± 13% +0.0 0.21 ± 3% perf-profile.children.cycles-pp.get_mem_cgroup_from_mm
0.22 ± 12% +0.1 0.28 ± 4% perf-profile.children.cycles-pp.mem_cgroup_charge_statistics
0.33 ± 8% +0.1 0.39 ± 6% perf-profile.children.cycles-pp.try_charge
0.27 ± 14% +0.1 0.33 ± 3% perf-profile.children.cycles-pp.__count_memcg_events
0.23 ± 8% +0.1 0.31 ± 7% perf-profile.children.cycles-pp.xa_load
0.44 ± 17% +0.1 0.55 ± 3% perf-profile.children.cycles-pp.__mod_memcg_state
0.60 ± 7% +0.1 0.73 ± 9% perf-profile.children.cycles-pp.xas_load
0.85 ± 11% +0.2 1.06 ± 3% perf-profile.children.cycles-pp.mem_cgroup_charge
0.00 +0.5 0.45 ± 11% perf-profile.children.cycles-pp.workingset_age_nonresident
37.91 ± 8% -5.9 32.02 ± 12% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
0.53 ± 11% -0.3 0.21 ± 13% perf-profile.self.cycles-pp.unaccount_page_cache_page
0.33 ± 14% -0.1 0.20 ± 9% perf-profile.self.cycles-pp.__isolate_lru_page
0.39 ± 11% -0.1 0.32 ± 13% perf-profile.self.cycles-pp.__remove_mapping
0.14 ± 14% -0.0 0.10 ± 8% perf-profile.self.cycles-pp.isolate_lru_pages
0.16 ± 6% +0.0 0.18 ± 5% perf-profile.self.cycles-pp.page_counter_try_charge
0.12 ± 12% +0.0 0.15 ± 2% perf-profile.self.cycles-pp.mem_cgroup_charge
0.16 ± 13% +0.0 0.21 ± 3% perf-profile.self.cycles-pp.get_mem_cgroup_from_mm
0.27 ± 14% +0.1 0.33 ± 3% perf-profile.self.cycles-pp.__count_memcg_events
0.44 ± 17% +0.1 0.54 ± 4% perf-profile.self.cycles-pp.__mod_memcg_state
0.51 ± 8% +0.1 0.62 ± 9% perf-profile.self.cycles-pp.xas_load
0.45 ± 12% +0.2 0.64 ± 12% perf-profile.self.cycles-pp.workingset_eviction
0.00 +0.5 0.45 ± 11% perf-profile.self.cycles-pp.workingset_age_nonresident
fio.read_iops
5e+06 +-----------------------------------------------------------------+
| |
4.8e+06 |-O O O O O O O O |
| O O O O O O O O O O O |
4.6e+06 |-+ O O O O O |
| .+ |
4.4e+06 |.+..+.+. + |
| + |
4.2e+06 |-+ + |
| + +. .+.. .|
4e+06 |-+ +.+.. .. +..+.+.. +.. .+ +. .+ |
| +.+.+ + .+.+..+.+. +. |
3.8e+06 |-+ + + |
| |
3.6e+06 +-----------------------------------------------------------------+
[*] 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,
Rong Chen
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