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Message-ID: <20210302062521.GB23892@xsang-OptiPlex-9020>
Date: Tue, 2 Mar 2021 14:25:21 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Tim Chen <tim.c.chen@...ux.intel.com>
Cc: 0day robot <lkp@...el.com>, Ying Huang <ying.huang@...el.com>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
feng.tang@...el.com, zhengjun.xing@...el.com,
Andrew Morton <akpm@...ux-foundation.org>,
Johannes Weiner <hannes@...xchg.org>,
Michal Hocko <mhocko@...e.cz>,
Vladimir Davydov <vdavydov.dev@...il.com>,
Tim Chen <tim.c.chen@...ux.intel.com>,
Dave Hansen <dave.hansen@...el.com>, linux-mm@...ck.org,
cgroups@...r.kernel.org
Subject: [mm] 4f09feb8bf: vm-scalability.throughput -4.3% regression
Greeting,
FYI, we noticed a -4.3% regression of vm-scalability.throughput due to commit:
commit: 4f09feb8bf083be3834080ddf3782aee12a7c3f7 ("mm: Force update of mem cgroup soft limit tree on usage excess")
url: https://github.com/0day-ci/linux/commits/Tim-Chen/Soft-limit-memory-management-bug-fixes/20210218-054228
in testcase: vm-scalability
on test machine: 192 threads Intel(R) Xeon(R) Platinum 9242 CPU @ 2.30GHz with 192G memory
with following parameters:
runtime: 300s
test: lru-file-readonce
cpufreq_governor: performance
ucode: 0x5003006
test-description: The motivation behind this suite is to exercise functions and regions of the mm/ of the Linux kernel which are of interest to us.
test-url: https://git.kernel.org/cgit/linux/kernel/git/wfg/vm-scalability.git/
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>
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 split-job --compatible job.yaml
bin/lkp run compatible-job.yaml
=========================================================================================
compiler/cpufreq_governor/kconfig/rootfs/runtime/tbox_group/test/testcase/ucode:
gcc-9/performance/x86_64-rhel-8.3/debian-10.4-x86_64-20200603.cgz/300s/lkp-csl-2ap4/lru-file-readonce/vm-scalability/0x5003006
commit:
f0812bba8b ("mm: Fix dropped memcg from mem cgroup soft limit tree")
4f09feb8bf ("mm: Force update of mem cgroup soft limit tree on usage excess")
f0812bba8bbd02bf 4f09feb8bf083be3834080ddf37
---------------- ---------------------------
%stddev %change %stddev
\ | \
131114 -4.2% 125626 vm-scalability.median
25345052 -4.3% 24265993 vm-scalability.throughput
224.30 +3.6% 232.43 vm-scalability.time.elapsed_time
224.30 +3.6% 232.43 vm-scalability.time.elapsed_time.max
31611 +4.5% 33046 vm-scalability.time.system_time
5225 -2.5% 5095 vmstat.system.cs
95143 ± 4% +20.7% 114842 ± 15% meminfo.Active
94109 ± 4% +20.9% 113806 ± 15% meminfo.Active(anon)
7347 ± 8% +17.9% 8665 ± 11% softirqs.CPU73.RCU
6628 ± 7% +21.3% 8040 ± 11% softirqs.CPU77.RCU
7378 ± 7% +35.9% 10027 ± 20% softirqs.CPU90.RCU
6976 ± 4% +31.5% 9173 ± 25% softirqs.CPU95.RCU
8983 ± 24% +19.5% 10737 ± 4% softirqs.CPU96.SCHED
220617 ± 33% -68.4% 69618 ±106% numa-meminfo.node0.Inactive(anon)
4442 ± 24% -31.2% 3055 ± 18% numa-meminfo.node0.PageTables
2964 ± 45% +153.1% 7504 ± 23% numa-meminfo.node1.Active
2620 ± 39% +179.8% 7332 ± 25% numa-meminfo.node1.Active(anon)
37702 ±130% +248.6% 131446 ± 60% numa-meminfo.node1.AnonPages
39649 ±131% +368.8% 185879 ± 43% numa-meminfo.node1.Inactive(anon)
3078 ± 11% +50.9% 4647 ± 21% numa-meminfo.node1.PageTables
4610 ± 59% +1241.2% 61840 ± 78% numa-meminfo.node1.Shmem
23809 ± 4% +20.6% 28704 ± 15% proc-vmstat.nr_active_anon
939.33 ± 4% -8.1% 863.33 ± 3% proc-vmstat.nr_isolated_file
56262 +9.7% 61735 ± 8% proc-vmstat.nr_shmem
23811 ± 4% +20.6% 28705 ± 15% proc-vmstat.nr_zone_active_anon
75883 ± 2% +23.1% 93446 ± 19% proc-vmstat.pgactivate
1038398 +5.0% 1089871 ± 2% proc-vmstat.pgfault
65866 +3.5% 68179 proc-vmstat.pgreuse
18338900 ± 6% -8.5% 16783260 ± 4% proc-vmstat.slabs_scanned
1216 ± 9% -8.2% 1116 ± 3% interrupts.CPU145.CAL:Function_call_interrupts
27.33 ± 16% +195.1% 80.67 ± 72% interrupts.CPU172.RES:Rescheduling_interrupts
162.00 ± 4% +21.0% 196.00 ± 17% interrupts.CPU33.RES:Rescheduling_interrupts
163.83 ± 3% +15.8% 189.67 ± 14% interrupts.CPU34.RES:Rescheduling_interrupts
129.83 ± 2% +19.8% 155.50 ± 9% interrupts.CPU56.RES:Rescheduling_interrupts
97.50 ± 10% +40.0% 136.50 ± 20% interrupts.CPU65.RES:Rescheduling_interrupts
261.17 ± 44% -44.2% 145.67 ± 18% interrupts.CPU73.RES:Rescheduling_interrupts
49.17 ± 48% +133.9% 115.00 ± 36% interrupts.CPU85.RES:Rescheduling_interrupts
41.83 ± 24% +144.2% 102.17 ± 52% interrupts.CPU88.RES:Rescheduling_interrupts
48.17 ± 38% +215.2% 151.83 ± 54% interrupts.CPU89.RES:Rescheduling_interrupts
38.17 ± 15% +106.1% 78.67 ± 39% interrupts.CPU90.RES:Rescheduling_interrupts
55160 ± 33% -68.5% 17396 ±106% numa-vmstat.node0.nr_inactive_anon
3614 ± 8% -17.7% 2974 ± 11% numa-vmstat.node0.nr_mapped
1105 ± 24% -31.0% 762.67 ± 17% numa-vmstat.node0.nr_page_table_pages
55168 ± 33% -68.5% 17402 ±106% numa-vmstat.node0.nr_zone_inactive_anon
663.00 ± 39% +179.7% 1854 ± 25% numa-vmstat.node1.nr_active_anon
9426 ±130% +248.2% 32821 ± 60% numa-vmstat.node1.nr_anon_pages
9914 ±131% +368.5% 46447 ± 43% numa-vmstat.node1.nr_inactive_anon
764.00 ± 11% +51.7% 1159 ± 20% numa-vmstat.node1.nr_page_table_pages
1162 ± 58% +1233.7% 15500 ± 77% numa-vmstat.node1.nr_shmem
663.17 ± 39% +179.6% 1854 ± 25% numa-vmstat.node1.nr_zone_active_anon
9920 ±131% +368.3% 46454 ± 43% numa-vmstat.node1.nr_zone_inactive_anon
9.08 ± 2% +22.4% 11.12 ± 12% perf-stat.i.MPKI
1.303e+10 -4.7% 1.242e+10 perf-stat.i.branch-instructions
0.39 +0.1 0.50 ± 28% perf-stat.i.branch-miss-rate%
1.873e+08 +8.2% 2.027e+08 perf-stat.i.cache-misses
5.924e+08 +7.4% 6.365e+08 perf-stat.i.cache-references
5087 -2.6% 4957 perf-stat.i.context-switches
6.02 +5.2% 6.33 perf-stat.i.cpi
2001 -6.8% 1865 perf-stat.i.cycles-between-cache-misses
0.05 ± 19% +0.0 0.07 ± 24% perf-stat.i.dTLB-load-miss-rate%
1.544e+10 -4.2% 1.479e+10 perf-stat.i.dTLB-loads
5.401e+09 -2.9% 5.247e+09 perf-stat.i.dTLB-stores
24692490 +6.3% 26255880 perf-stat.i.iTLB-load-misses
5.933e+10 -4.4% 5.67e+10 perf-stat.i.instructions
1.89 ± 3% -9.9% 1.70 ± 5% perf-stat.i.major-faults
179.72 -4.0% 172.60 perf-stat.i.metric.M/sec
21954317 +7.3% 23554489 perf-stat.i.node-load-misses
12269278 -3.4% 11855032 perf-stat.i.node-store-misses
14458012 -3.3% 13976704 perf-stat.i.node-stores
10.01 +12.0% 11.21 perf-stat.overall.MPKI
0.32 +0.0 0.34 ± 4% perf-stat.overall.branch-miss-rate%
7.28 +5.3% 7.67 perf-stat.overall.cpi
2307 -7.0% 2146 perf-stat.overall.cycles-between-cache-misses
2408 -10.0% 2167 perf-stat.overall.instructions-per-iTLB-miss
0.14 -5.0% 0.13 perf-stat.overall.ipc
36.46 +2.1 38.51 perf-stat.overall.node-load-miss-rate%
1.346e+10 -4.6% 1.285e+10 perf-stat.ps.branch-instructions
1.936e+08 +8.2% 2.095e+08 perf-stat.ps.cache-misses
6.14e+08 +7.2% 6.579e+08 perf-stat.ps.cache-references
5172 -2.6% 5038 perf-stat.ps.context-switches
1.597e+10 -4.1% 1.531e+10 perf-stat.ps.dTLB-loads
5.575e+09 -2.9% 5.411e+09 perf-stat.ps.dTLB-stores
25461461 +6.3% 27074171 perf-stat.ps.iTLB-load-misses
6.131e+10 -4.3% 5.867e+10 perf-stat.ps.instructions
1.76 ± 2% -5.0% 1.68 perf-stat.ps.major-faults
22688997 +7.3% 24343963 perf-stat.ps.node-load-misses
12711574 -3.5% 12262917 perf-stat.ps.node-store-misses
14988174 -3.4% 14480039 perf-stat.ps.node-stores
0.01 ± 11% +87.2% 0.01 ± 18% perf-sched.sch_delay.avg.ms.__sched_text_start.__sched_text_start.smpboot_thread_fn.kthread.ret_from_fork
0.00 ±114% +353.6% 0.02 ± 47% perf-sched.sch_delay.max.ms.__sched_text_start.__sched_text_start.exit_to_user_mode_prepare.syscall_exit_to_user_mode.entry_SYSCALL_64_after_hwframe
0.02 ± 17% +338.9% 0.08 ± 62% perf-sched.sch_delay.max.ms.__sched_text_start.__sched_text_start.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop
0.02 ± 49% +3.1e+05% 76.43 ±185% perf-sched.sch_delay.max.ms.__sched_text_start.__sched_text_start.schedule_timeout.kcompactd.kthread
0.68 ±212% +983.9% 7.35 ± 37% perf-sched.sch_delay.max.ms.__sched_text_start.__sched_text_start.smpboot_thread_fn.kthread.ret_from_fork
3.16 ± 75% +8842.7% 282.23 ±218% perf-sched.sch_delay.max.ms.__sched_text_start.__sched_text_start.worker_thread.kthread.ret_from_fork
197.84 ± 7% -23.7% 150.97 ± 18% perf-sched.total_wait_and_delay.average.ms
13780 ± 6% +75.6% 24203 ± 27% perf-sched.total_wait_and_delay.count.ms
197.81 ± 7% -23.7% 150.88 ± 18% perf-sched.total_wait_time.average.ms
2.31 ±100% +286.1% 8.90 ± 38% perf-sched.wait_and_delay.avg.ms.__sched_text_start.__sched_text_start.devkmsg_read.vfs_read.ksys_read
2.32 ±100% +284.4% 8.91 ± 38% perf-sched.wait_and_delay.avg.ms.__sched_text_start.__sched_text_start.do_syslog.part.0
215.21 ± 4% -62.0% 81.72 ± 21% perf-sched.wait_and_delay.avg.ms.__sched_text_start.__sched_text_start.do_task_dead.do_exit.do_group_exit
0.91 ± 4% +145.7% 2.25 ± 5% perf-sched.wait_and_delay.avg.ms.__sched_text_start.__sched_text_start.do_wait.kernel_wait4.__do_sys_wait4
344.42 -92.3% 26.39 ± 33% perf-sched.wait_and_delay.avg.ms.__sched_text_start.__sched_text_start.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop
478.60 -36.5% 304.11 ± 31% perf-sched.wait_and_delay.avg.ms.__sched_text_start.__sched_text_start.schedule_timeout.kcompactd.kthread
655.59 ± 3% +9.7% 719.00 ± 2% perf-sched.wait_and_delay.avg.ms.__sched_text_start.__sched_text_start.smpboot_thread_fn.kthread.ret_from_fork
167.67 ±124% +426.7% 883.17 ± 12% perf-sched.wait_and_delay.count.__sched_text_start.__sched_text_start.devkmsg_read.vfs_read.ksys_read
11.17 ± 3% +11.9% 12.50 ± 4% perf-sched.wait_and_delay.count.__sched_text_start.__sched_text_start.do_nanosleep.hrtimer_nanosleep.__x64_sys_nanosleep
167.50 ±124% +427.1% 882.83 ± 12% perf-sched.wait_and_delay.count.__sched_text_start.__sched_text_start.do_syslog.part.0
303.50 +169.0% 816.50 ± 14% perf-sched.wait_and_delay.count.__sched_text_start.__sched_text_start.do_task_dead.do_exit.do_group_exit
302.17 +128.4% 690.17 perf-sched.wait_and_delay.count.__sched_text_start.__sched_text_start.do_wait.kernel_wait4.__do_sys_wait4
323.33 ± 28% -87.0% 42.00 ±141% perf-sched.wait_and_delay.count.__sched_text_start.__sched_text_start.preempt_schedule_common._cond_resched.truncate_inode_pages_range
185.67 ±115% +385.9% 902.17 ± 12% perf-sched.wait_and_delay.count.__sched_text_start.__sched_text_start.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait
26.17 +2201.9% 602.33 perf-sched.wait_and_delay.count.__sched_text_start.__sched_text_start.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop
79.33 +71.2% 135.83 ± 32% perf-sched.wait_and_delay.count.__sched_text_start.__sched_text_start.schedule_timeout.kcompactd.kthread
974.50 ± 19% +390.9% 4783 ± 70% perf-sched.wait_and_delay.count.__sched_text_start.__sched_text_start.worker_thread.kthread.ret_from_fork
5.23 ±104% +63694.8% 3339 ± 66% perf-sched.wait_and_delay.max.ms.__sched_text_start.__sched_text_start.devkmsg_read.vfs_read.ksys_read
5.23 ±104% +63704.2% 3339 ± 66% perf-sched.wait_and_delay.max.ms.__sched_text_start.__sched_text_start.do_syslog.part.0
21.62 ± 3% +4530.4% 1001 perf-sched.wait_and_delay.max.ms.__sched_text_start.__sched_text_start.do_wait.kernel_wait4.__do_sys_wait4
1019 +227.9% 3342 ± 66% perf-sched.wait_and_delay.max.ms.__sched_text_start.__sched_text_start.pipe_read.new_sync_read.vfs_read
333.34 ± 70% +963.4% 3544 ± 61% perf-sched.wait_and_delay.max.ms.__sched_text_start.__sched_text_start.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait
1000 +365.0% 4654 ± 71% perf-sched.wait_and_delay.max.ms.__sched_text_start.__sched_text_start.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop
5.03 +4104.3% 211.64 ± 41% perf-sched.wait_and_delay.max.ms.__sched_text_start.__sched_text_start.schedule_timeout.rcu_gp_kthread.kthread
3.46 ± 44% +157.3% 8.90 ± 38% perf-sched.wait_time.avg.ms.__sched_text_start.__sched_text_start.devkmsg_read.vfs_read.ksys_read
3.47 ± 44% +156.2% 8.90 ± 38% perf-sched.wait_time.avg.ms.__sched_text_start.__sched_text_start.do_syslog.part.0
215.20 ± 4% -62.0% 81.71 ± 21% perf-sched.wait_time.avg.ms.__sched_text_start.__sched_text_start.do_task_dead.do_exit.do_group_exit
0.91 ± 4% +146.2% 2.24 ± 5% perf-sched.wait_time.avg.ms.__sched_text_start.__sched_text_start.do_wait.kernel_wait4.__do_sys_wait4
0.01 ±149% +1185.7% 0.09 ± 53% perf-sched.wait_time.avg.ms.__sched_text_start.__sched_text_start.exit_to_user_mode_prepare.syscall_exit_to_user_mode.entry_SYSCALL_64_after_hwframe
0.51 ± 20% +111.1% 1.08 ± 21% perf-sched.wait_time.avg.ms.__sched_text_start.__sched_text_start.preempt_schedule_common._cond_resched.truncate_inode_pages_range
0.01 ±146% +9.6e+05% 86.17 ± 70% perf-sched.wait_time.avg.ms.__sched_text_start.__sched_text_start.preempt_schedule_common._cond_resched.ww_mutex_lock
1.73 ± 16% +95.0% 3.37 ± 29% perf-sched.wait_time.avg.ms.__sched_text_start.__sched_text_start.rcu_gp_kthread.kthread.ret_from_fork
344.42 -92.3% 26.38 ± 33% perf-sched.wait_time.avg.ms.__sched_text_start.__sched_text_start.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop
478.59 -36.6% 303.45 ± 31% perf-sched.wait_time.avg.ms.__sched_text_start.__sched_text_start.schedule_timeout.kcompactd.kthread
655.58 ± 3% +9.7% 718.99 ± 2% perf-sched.wait_time.avg.ms.__sched_text_start.__sched_text_start.smpboot_thread_fn.kthread.ret_from_fork
7.49 ± 52% +44482.5% 3339 ± 66% perf-sched.wait_time.max.ms.__sched_text_start.__sched_text_start.devkmsg_read.vfs_read.ksys_read
7.49 ± 52% +44481.2% 3339 ± 66% perf-sched.wait_time.max.ms.__sched_text_start.__sched_text_start.do_syslog.part.0
21.62 ± 3% +4531.3% 1001 perf-sched.wait_time.max.ms.__sched_text_start.__sched_text_start.do_wait.kernel_wait4.__do_sys_wait4
0.02 ±145% +12809.8% 1.98 ±134% perf-sched.wait_time.max.ms.__sched_text_start.__sched_text_start.exit_to_user_mode_prepare.syscall_exit_to_user_mode.entry_SYSCALL_64_after_hwframe
1019 +227.9% 3342 ± 66% perf-sched.wait_time.max.ms.__sched_text_start.__sched_text_start.pipe_read.new_sync_read.vfs_read
0.02 ±142% +2.9e+06% 436.52 ± 67% perf-sched.wait_time.max.ms.__sched_text_start.__sched_text_start.preempt_schedule_common._cond_resched.ww_mutex_lock
413.83 ± 43% +756.5% 3544 ± 61% perf-sched.wait_time.max.ms.__sched_text_start.__sched_text_start.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait
1000 +365.1% 4654 ± 71% perf-sched.wait_time.max.ms.__sched_text_start.__sched_text_start.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop
5.02 +4118.6% 211.60 ± 41% perf-sched.wait_time.max.ms.__sched_text_start.__sched_text_start.schedule_timeout.rcu_gp_kthread.kthread
30.68 ± 3% -2.6 28.08 ± 2% perf-profile.calltrace.cycles-pp.lock_page_lruvec_irqsave.__pagevec_lru_add.lru_cache_add.add_to_page_cache_lru.page_cache_ra_unbounded
30.67 ± 3% -2.6 28.07 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.lock_page_lruvec_irqsave.__pagevec_lru_add.lru_cache_add.add_to_page_cache_lru
30.63 ± 3% -2.6 28.03 ± 2% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.lock_page_lruvec_irqsave.__pagevec_lru_add.lru_cache_add
31.63 ± 3% -2.6 29.07 ± 2% perf-profile.calltrace.cycles-pp.__pagevec_lru_add.lru_cache_add.add_to_page_cache_lru.page_cache_ra_unbounded.generic_file_buffered_read_get_pages
31.68 ± 3% -2.6 29.11 ± 2% perf-profile.calltrace.cycles-pp.lru_cache_add.add_to_page_cache_lru.page_cache_ra_unbounded.generic_file_buffered_read_get_pages.generic_file_buffered_read
49.97 ± 2% -2.6 47.42 perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.page_cache_ra_unbounded.generic_file_buffered_read_get_pages.generic_file_buffered_read.xfs_file_buffered_aio_read
5.62 ± 5% -0.5 5.10 ± 3% perf-profile.calltrace.cycles-pp.read_pages.page_cache_ra_unbounded.generic_file_buffered_read_get_pages.generic_file_buffered_read.xfs_file_buffered_aio_read
5.57 ± 5% -0.5 5.05 ± 3% perf-profile.calltrace.cycles-pp.iomap_readahead_actor.iomap_apply.iomap_readahead.read_pages.page_cache_ra_unbounded
5.61 ± 5% -0.5 5.09 ± 3% perf-profile.calltrace.cycles-pp.iomap_readahead.read_pages.page_cache_ra_unbounded.generic_file_buffered_read_get_pages.generic_file_buffered_read
5.60 ± 5% -0.5 5.09 ± 3% perf-profile.calltrace.cycles-pp.iomap_apply.iomap_readahead.read_pages.page_cache_ra_unbounded.generic_file_buffered_read_get_pages
5.34 ± 5% -0.5 4.83 ± 3% perf-profile.calltrace.cycles-pp.iomap_readpage_actor.iomap_readahead_actor.iomap_apply.iomap_readahead.read_pages
0.70 ± 14% +0.3 0.95 ± 9% perf-profile.calltrace.cycles-pp.try_charge.mem_cgroup_charge.__add_to_page_cache_locked.add_to_page_cache_lru.page_cache_ra_unbounded
0.38 ± 71% +0.3 0.70 ± 9% perf-profile.calltrace.cycles-pp.page_counter_try_charge.try_charge.mem_cgroup_charge.__add_to_page_cache_locked.add_to_page_cache_lru
0.00 +3.5 3.52 ± 9% perf-profile.calltrace.cycles-pp.memcg_check_events.mem_cgroup_charge.__add_to_page_cache_locked.add_to_page_cache_lru.page_cache_ra_unbounded
38.12 ± 2% +3.8 41.90 ± 2% perf-profile.calltrace.cycles-pp.add_to_page_cache_lru.page_cache_ra_unbounded.generic_file_buffered_read_get_pages.generic_file_buffered_read.xfs_file_buffered_aio_read
5.32 ± 19% +6.3 11.60 ± 6% perf-profile.calltrace.cycles-pp.mem_cgroup_charge.__add_to_page_cache_locked.add_to_page_cache_lru.page_cache_ra_unbounded.generic_file_buffered_read_get_pages
6.41 ± 17% +6.3 12.76 ± 5% perf-profile.calltrace.cycles-pp.__add_to_page_cache_locked.add_to_page_cache_lru.page_cache_ra_unbounded.generic_file_buffered_read_get_pages.generic_file_buffered_read
76.16 ± 2% -5.1 71.05 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
38.16 ± 5% -3.5 34.66 ± 3% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
50.11 ± 2% -2.6 47.51 perf-profile.children.cycles-pp.__alloc_pages_nodemask
30.76 ± 3% -2.6 28.17 ± 2% perf-profile.children.cycles-pp.lock_page_lruvec_irqsave
31.70 ± 3% -2.6 29.14 ± 2% perf-profile.children.cycles-pp.__pagevec_lru_add
31.72 ± 3% -2.6 29.16 ± 2% perf-profile.children.cycles-pp.lru_cache_add
4.13 ± 16% -1.4 2.69 ± 19% perf-profile.children.cycles-pp.get_page_from_freelist
3.98 ± 17% -1.4 2.55 ± 20% perf-profile.children.cycles-pp.rmqueue
3.73 ± 18% -1.4 2.32 ± 22% perf-profile.children.cycles-pp.rmqueue_bulk
3.60 ± 18% -1.4 2.19 ± 22% perf-profile.children.cycles-pp._raw_spin_lock
5.62 ± 5% -0.5 5.09 ± 2% perf-profile.children.cycles-pp.read_pages
5.57 ± 5% -0.5 5.05 ± 3% perf-profile.children.cycles-pp.iomap_readahead_actor
5.61 ± 5% -0.5 5.09 ± 3% perf-profile.children.cycles-pp.iomap_readahead
5.60 ± 5% -0.5 5.08 ± 3% perf-profile.children.cycles-pp.iomap_apply
5.36 ± 5% -0.5 4.85 ± 3% perf-profile.children.cycles-pp.iomap_readpage_actor
2.93 ± 5% -0.3 2.65 ± 3% perf-profile.children.cycles-pp.memset_erms
2.23 ± 5% -0.2 2.01 ± 3% perf-profile.children.cycles-pp.iomap_set_range_uptodate
0.73 ± 2% -0.1 0.67 perf-profile.children.cycles-pp.__list_del_entry_valid
0.06 ± 11% +0.0 0.08 ± 7% perf-profile.children.cycles-pp.uncharge_page
0.31 ± 7% +0.0 0.35 ± 4% perf-profile.children.cycles-pp.__count_memcg_events
0.18 ± 10% +0.0 0.23 ± 4% perf-profile.children.cycles-pp.mem_cgroup_charge_statistics
0.41 ± 7% +0.0 0.46 ± 3% perf-profile.children.cycles-pp.uncharge_batch
0.16 ± 14% +0.1 0.24 ± 7% perf-profile.children.cycles-pp.propagate_protected_usage
0.51 ± 7% +0.1 0.60 ± 4% perf-profile.children.cycles-pp.__mod_memcg_state
0.97 ± 8% +0.1 1.10 ± 3% perf-profile.children.cycles-pp.__mod_memcg_lruvec_state
0.68 ± 14% +0.2 0.93 ± 6% perf-profile.children.cycles-pp.page_counter_try_charge
0.91 ± 14% +0.3 1.25 ± 6% perf-profile.children.cycles-pp.try_charge
0.05 ± 8% +3.5 3.55 ± 9% perf-profile.children.cycles-pp.memcg_check_events
38.12 ± 2% +3.8 41.91 ± 2% perf-profile.children.cycles-pp.add_to_page_cache_lru
5.34 ± 19% +6.3 11.62 ± 6% perf-profile.children.cycles-pp.mem_cgroup_charge
6.42 ± 17% +6.4 12.77 ± 5% perf-profile.children.cycles-pp.__add_to_page_cache_locked
76.16 ± 2% -5.1 71.05 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
2.91 ± 5% -0.3 2.63 ± 3% perf-profile.self.cycles-pp.memset_erms
2.20 ± 5% -0.2 1.98 ± 3% perf-profile.self.cycles-pp.iomap_set_range_uptodate
0.20 ± 8% -0.0 0.17 ± 4% perf-profile.self.cycles-pp.rmqueue_bulk
0.13 ± 4% -0.0 0.11 ± 6% perf-profile.self.cycles-pp.__remove_mapping
0.06 ± 11% +0.0 0.08 ± 7% perf-profile.self.cycles-pp.uncharge_page
0.31 ± 7% +0.0 0.35 ± 4% perf-profile.self.cycles-pp.__count_memcg_events
0.16 ± 14% +0.1 0.24 ± 9% perf-profile.self.cycles-pp.propagate_protected_usage
0.23 ± 13% +0.1 0.32 ± 6% perf-profile.self.cycles-pp.try_charge
0.51 ± 7% +0.1 0.60 ± 3% perf-profile.self.cycles-pp.__mod_memcg_state
0.58 ± 13% +0.2 0.75 ± 6% perf-profile.self.cycles-pp.page_counter_try_charge
2.25 ± 25% +1.8 4.05 ± 6% perf-profile.self.cycles-pp.mem_cgroup_charge
0.01 ±223% +3.5 3.54 ± 9% perf-profile.self.cycles-pp.memcg_check_events
vm-scalability.median
134000 +------------------------------------------------------------------+
| +. |
132000 |-+ .+ .+ + .+ + + + |
| + : +.++.+ : + + : + : + :+ : |
130000 |-+: : + : + : + : : : : + : |
|.+ ++ O O :.+ +.+ O +.+.+O + O + O |
128000 |-+ O + O |
| O O O O O O O O |
126000 |-+ O O O O O O |
| O O O O O |
124000 |-+ O O O O O O |
| O O |
122000 |-+ |
| O O |
120000 +------------------------------------------------------------------+
[*] 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,
Oliver Sang
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