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Date: Sat, 20 Jun 2020 22:36:57 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Kent Overstreet <kent.overstreet@...il.com>
Cc: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
viro@...iv.linux.org.uk, linux-mm@...ck.org,
linux-fsdevel@...r.kernel.org,
Kent Overstreet <kent.overstreet@...il.com>, lkp@...ts.01.org
Subject: [fs] 420772c473: vm-scalability.throughput 41.7% improvement
Greeting,
FYI, we noticed a 41.7% improvement of vm-scalability.throughput due to commit:
commit: 420772c4738950463682fcfb1c52aa946c3bd537 ("[PATCH 2/2] fs: generic_file_buffered_read() now uses find_get_pages_contig")
url: https://github.com/0day-ci/linux/commits/Kent-Overstreet/generic_file_buffered_read-refactoring-optimization/20200610-081203
in testcase: vm-scalability
on test machine: 16 threads Intel(R) Xeon(R) E-2278G CPU @ 3.40GHz with 32G memory
with following parameters:
runtime: 300s
test: lru-file-readtwice
cpufreq_governor: performance
ucode: 0xd6
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/
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/kconfig/rootfs/runtime/tbox_group/test/testcase/ucode:
gcc-9/performance/x86_64-rhel-7.6/debian-x86_64-20191114.cgz/300s/lkp-cfl-e1/lru-file-readtwice/vm-scalability/0xd6
commit:
b987172564 ("fs: Break generic_file_buffered_read up into multiple functions")
420772c473 ("fs: generic_file_buffered_read() now uses find_get_pages_contig")
b98717256411f1a9 420772c4738950463682fcfb1c5
---------------- ---------------------------
%stddev %change %stddev
\ | \
496998 +44.2% 716762 vm-scalability.median
15886734 +41.7% 22513243 vm-scalability.throughput
1164694 ± 4% -40.8% 689654 vm-scalability.time.involuntary_context_switches
116.08 +51.3% 175.59 vm-scalability.time.user_time
4.766e+09 +41.7% 6.754e+09 vm-scalability.workload
2.61 +1.2 3.85 mpstat.cpu.all.usr%
343.25 ± 15% -28.0% 247.25 ± 19% slabinfo.kmalloc-rcl-128.active_objs
343.25 ± 15% -28.0% 247.25 ± 19% slabinfo.kmalloc-rcl-128.num_objs
1244 ± 12% -34.0% 821.00 ± 3% slabinfo.numa_policy.active_objs
1336 ± 8% +16.6% 1557 slabinfo.numa_policy.num_objs
94.00 -1.1% 93.00 vmstat.cpu.sy
6.00 +862.5% 57.75 vmstat.memory.buff
8119 ± 5% -43.9% 4556 vmstat.system.cs
34132 -2.1% 33401 vmstat.system.in
19100320 ± 3% -98.5% 280481 meminfo.Active
18823639 ± 3% -100.0% 5150 ± 60% meminfo.Active(file)
23156 ± 33% +66.1% 38454 ± 27% meminfo.AnonHugePages
10989916 ± 5% +170.9% 29770220 meminfo.Inactive
10961062 ± 5% +171.3% 29741482 meminfo.Inactive(file)
80369 -67.3% 26311 ± 24% cpuidle.C1E.usage
4042024 ± 12% +452.9% 22347960 ± 47% cpuidle.C3.time
19096 ± 18% +542.1% 122618 ± 52% cpuidle.C3.usage
69171 ± 30% +72.4% 119250 ± 30% cpuidle.C6.usage
33916657 ± 57% -99.0% 347090 ± 23% cpuidle.C8.time
38605 ± 57% -99.1% 365.00 ± 22% cpuidle.C8.usage
3128 ± 11% +21.6% 3803 ± 12% cpuidle.POLL.usage
56362 ± 3% +20.6% 67998 softirqs.CPU0.RCU
55215 ± 5% +30.1% 71853 ± 3% softirqs.CPU10.RCU
56575 ± 4% +23.8% 70026 ± 4% softirqs.CPU12.RCU
56725 ± 7% +17.1% 66442 ± 7% softirqs.CPU14.RCU
52704 ± 14% +34.8% 71062 ± 9% softirqs.CPU3.RCU
56448 ± 3% +21.1% 68384 ± 4% softirqs.CPU5.RCU
54867 ± 3% +15.8% 63542 ± 6% softirqs.CPU7.RCU
54642 ± 6% +23.9% 67714 softirqs.CPU8.RCU
57982 ± 3% +23.0% 71314 ± 3% softirqs.CPU9.RCU
879397 ± 3% +21.1% 1064887 softirqs.RCU
45.58 ± 7% -28.9% 32.42 ± 7% sched_debug.cfs_rq:/.load_avg.min
1108728 ± 21% +35.4% 1501386 ± 24% sched_debug.cfs_rq:/.min_vruntime.min
1050 ± 7% -16.5% 877.29 ± 8% sched_debug.cfs_rq:/.runnable_avg.min
132410 ± 14% +104.9% 271253 ± 7% sched_debug.cpu.avg_idle.avg
829517 ± 6% +13.9% 944799 ± 4% sched_debug.cpu.avg_idle.max
223109 ± 8% +45.7% 325043 ± 4% sched_debug.cpu.avg_idle.stddev
82912 ± 4% -41.8% 48227 ± 2% sched_debug.cpu.nr_switches.avg
117117 ± 4% -40.8% 69362 ± 11% sched_debug.cpu.nr_switches.max
59928 ± 17% -33.5% 39840 ± 6% sched_debug.cpu.nr_switches.min
11450 ± 18% -38.6% 7033 ± 25% sched_debug.cpu.nr_switches.stddev
79329 ± 4% -43.5% 44804 ± 2% sched_debug.cpu.sched_count.avg
113053 ± 4% -43.1% 64357 ± 10% sched_debug.cpu.sched_count.max
56349 ± 19% -33.9% 37235 ± 6% sched_debug.cpu.sched_count.min
11110 ± 22% -42.5% 6388 ± 25% sched_debug.cpu.sched_count.stddev
38653 ± 4% -48.8% 19776 ± 3% sched_debug.cpu.ttwu_count.avg
71016 ± 9% -50.9% 34855 ± 17% sched_debug.cpu.ttwu_count.max
26009 ± 21% -39.3% 15777 ± 6% sched_debug.cpu.ttwu_count.min
9400 ± 16% -50.7% 4631 ± 29% sched_debug.cpu.ttwu_count.stddev
25269 -46.0% 13649 sched_debug.cpu.ttwu_local.avg
41880 ± 7% -43.4% 23709 ± 13% sched_debug.cpu.ttwu_local.max
5338 ± 21% -40.9% 3154 ± 22% sched_debug.cpu.ttwu_local.stddev
741.50 ± 71% +616.2% 5310 ±134% interrupts.133:IR-PCI-MSI.2097154-edge.eth1-TxRx-1
22457 ± 14% -60.4% 8898 ± 7% interrupts.CPU0.RES:Rescheduling_interrupts
23691 ± 11% -60.8% 9280 ± 10% interrupts.CPU1.RES:Rescheduling_interrupts
23162 ± 15% -59.9% 9296 ± 4% interrupts.CPU10.RES:Rescheduling_interrupts
23589 ± 12% -62.2% 8923 ± 9% interrupts.CPU11.RES:Rescheduling_interrupts
23050 ± 13% -59.0% 9448 ± 18% interrupts.CPU12.RES:Rescheduling_interrupts
23024 ± 14% -61.2% 8939 ± 13% interrupts.CPU13.RES:Rescheduling_interrupts
23480 ± 15% -62.7% 8753 ± 6% interrupts.CPU14.RES:Rescheduling_interrupts
22921 ± 14% -63.1% 8464 ± 8% interrupts.CPU15.RES:Rescheduling_interrupts
741.50 ± 71% +616.2% 5310 ±134% interrupts.CPU2.133:IR-PCI-MSI.2097154-edge.eth1-TxRx-1
23039 ± 16% -59.1% 9417 ± 9% interrupts.CPU2.RES:Rescheduling_interrupts
23216 ± 12% -58.2% 9709 ± 11% interrupts.CPU3.RES:Rescheduling_interrupts
22805 ± 15% -60.0% 9118 ± 8% interrupts.CPU4.RES:Rescheduling_interrupts
22900 ± 14% -62.4% 8599 ± 8% interrupts.CPU5.RES:Rescheduling_interrupts
22699 ± 15% -61.6% 8712 ± 7% interrupts.CPU6.RES:Rescheduling_interrupts
22349 ± 14% -63.3% 8207 ± 8% interrupts.CPU7.RES:Rescheduling_interrupts
11476 -38.8% 7029 ± 34% interrupts.CPU8.NMI:Non-maskable_interrupts
11476 -38.8% 7029 ± 34% interrupts.CPU8.PMI:Performance_monitoring_interrupts
22696 ± 13% -60.4% 8991 ± 17% interrupts.CPU8.RES:Rescheduling_interrupts
23216 ± 14% -60.5% 9170 ± 12% interrupts.CPU9.RES:Rescheduling_interrupts
368298 ± 14% -60.9% 143930 ± 7% interrupts.RES:Rescheduling_interrupts
287.75 ± 9% +28.1% 368.50 ± 3% interrupts.TLB:TLB_shootdowns
1243480 ± 12% -77.6% 278443 ± 3% proc-vmstat.allocstall_movable
90453 ± 17% -50.2% 45084 ± 6% proc-vmstat.allocstall_normal
95390 ± 12% -43.4% 53979 ± 24% proc-vmstat.compact_daemon_migrate_scanned
14702 ± 32% -84.7% 2249 ± 30% proc-vmstat.compact_fail
155958 ± 15% -33.3% 104069 ± 19% proc-vmstat.compact_isolated
98711 ± 13% -33.3% 65866 ± 17% proc-vmstat.compact_migrate_scanned
14708 ± 32% -84.6% 2259 ± 30% proc-vmstat.compact_stall
67.00 ± 13% +2743.7% 1905 ± 6% proc-vmstat.kswapd_low_wmark_hit_quickly
4703321 ± 3% -100.0% 1287 ± 60% proc-vmstat.nr_active_file
2740966 ± 5% +171.3% 7437227 proc-vmstat.nr_inactive_file
298.75 -32.3% 202.25 ± 5% proc-vmstat.nr_isolated_file
12617 -3.7% 12154 proc-vmstat.nr_shmem
306.00 ± 4% -89.0% 33.75 ± 7% proc-vmstat.nr_vmscan_immediate_reclaim
4703315 ± 3% -100.0% 1287 ± 60% proc-vmstat.nr_zone_active_file
2740872 ± 5% +171.3% 7437151 proc-vmstat.nr_zone_inactive_file
8.985e+08 +6.1% 9.536e+08 proc-vmstat.numa_hit
8.985e+08 +6.1% 9.536e+08 proc-vmstat.numa_local
68.50 ± 13% +2683.9% 1907 ± 6% proc-vmstat.pageoutrun
2.945e+08 ± 6% -100.0% 8238 proc-vmstat.pgactivate
49475350 +24.2% 61466989 proc-vmstat.pgalloc_dma32
8.491e+08 ± 2% +5.1% 8.924e+08 proc-vmstat.pgalloc_normal
3.077e+08 ± 7% -100.0% 2.25 ±173% proc-vmstat.pgdeactivate
8.985e+08 +6.1% 9.533e+08 proc-vmstat.pgfree
76852 ± 15% -34.2% 50555 ± 20% proc-vmstat.pgmigrate_success
3.077e+08 ± 7% -100.0% 2.25 ±173% proc-vmstat.pgrefill
6.643e+08 ± 2% -9.8% 5.992e+08 ± 2% proc-vmstat.pgscan_direct
2.234e+08 +52.1% 3.399e+08 proc-vmstat.pgscan_kswapd
6.643e+08 ± 2% -9.8% 5.992e+08 ± 2% proc-vmstat.pgsteal_direct
2.234e+08 +52.1% 3.399e+08 proc-vmstat.pgsteal_kswapd
13919902 +23.8% 17230370 proc-vmstat.slabs_scanned
11712173 ± 4% -100.0% 607.00 ±128% proc-vmstat.workingset_activate
3901977 +48.5% 5796193 proc-vmstat.workingset_nodereclaim
923196 +1.2% 933876 proc-vmstat.workingset_nodes
1.129e+08 ± 4% -62.5% 42308674 ± 21% proc-vmstat.workingset_refault
40.46 -3.9% 38.89 perf-stat.i.MPKI
5.173e+09 +9.5% 5.665e+09 perf-stat.i.branch-instructions
0.53 +0.0 0.56 perf-stat.i.branch-miss-rate%
26762450 +16.4% 31164299 perf-stat.i.branch-misses
35.57 +7.7 43.25 perf-stat.i.cache-miss-rate%
3.785e+08 +28.7% 4.872e+08 perf-stat.i.cache-misses
1.066e+09 +5.2% 1.122e+09 perf-stat.i.cache-references
8174 ± 5% -44.0% 4577 perf-stat.i.context-switches
2.48 -10.5% 2.22 perf-stat.i.cpi
6.507e+10 -1.8% 6.391e+10 perf-stat.i.cpu-cycles
174.51 -22.9% 134.58 perf-stat.i.cycles-between-cache-misses
0.06 ± 4% -0.0 0.04 ± 9% perf-stat.i.dTLB-load-miss-rate%
4137765 ± 4% -28.2% 2972441 ± 9% perf-stat.i.dTLB-load-misses
7.157e+09 +12.2% 8.028e+09 perf-stat.i.dTLB-loads
3.869e+09 +16.8% 4.519e+09 perf-stat.i.dTLB-stores
15448634 +36.0% 21014900 perf-stat.i.iTLB-load-misses
23320 ± 2% +24.1% 28940 ± 6% perf-stat.i.iTLB-loads
2.615e+10 +9.4% 2.86e+10 perf-stat.i.instructions
2287 -24.2% 1735 ± 3% perf-stat.i.instructions-per-iTLB-miss
0.42 +10.1% 0.46 perf-stat.i.ipc
4.07 -1.8% 4.00 perf-stat.i.metric.GHz
0.80 ± 5% -27.7% 0.58 ± 4% perf-stat.i.metric.K/sec
1095 +12.2% 1228 perf-stat.i.metric.M/sec
0.00 ± 8% -0.0 0.00 ± 12% perf-stat.i.node-load-miss-rate%
170.06 +53.7% 261.36 ± 14% perf-stat.i.node-load-misses
47528763 ± 4% +125.2% 1.071e+08 ± 4% perf-stat.i.node-loads
0.00 ± 2% +0.0 0.00 ± 14% perf-stat.i.node-store-miss-rate%
172.96 +51.2% 261.43 ± 14% perf-stat.i.node-store-misses
2.047e+08 +4.9% 2.148e+08 perf-stat.i.node-stores
40.77 -3.8% 39.22 perf-stat.overall.MPKI
0.52 +0.0 0.55 perf-stat.overall.branch-miss-rate%
35.50 +7.9 43.43 perf-stat.overall.cache-miss-rate%
2.49 -10.2% 2.23 perf-stat.overall.cpi
171.91 -23.7% 131.20 perf-stat.overall.cycles-between-cache-misses
0.06 ± 4% -0.0 0.04 ± 9% perf-stat.overall.dTLB-load-miss-rate%
1692 -19.6% 1361 perf-stat.overall.instructions-per-iTLB-miss
0.40 +11.3% 0.45 perf-stat.overall.ipc
0.00 ± 5% -0.0 0.00 ± 14% perf-stat.overall.node-load-miss-rate%
0.00 +0.0 0.00 ± 14% perf-stat.overall.node-store-miss-rate%
1679 -22.9% 1295 perf-stat.overall.path-length
5.156e+09 +9.5% 5.647e+09 perf-stat.ps.branch-instructions
26677747 +16.4% 31063524 perf-stat.ps.branch-misses
3.773e+08 +28.7% 4.856e+08 perf-stat.ps.cache-misses
1.063e+09 +5.2% 1.118e+09 perf-stat.ps.cache-references
8146 ± 5% -44.0% 4562 perf-stat.ps.context-switches
6.485e+10 -1.8% 6.371e+10 perf-stat.ps.cpu-cycles
4124690 ± 4% -28.2% 2962937 ± 9% perf-stat.ps.dTLB-load-misses
7.134e+09 +12.2% 8.002e+09 perf-stat.ps.dTLB-loads
3.857e+09 +16.8% 4.505e+09 perf-stat.ps.dTLB-stores
15398712 +36.0% 20947207 perf-stat.ps.iTLB-load-misses
23241 ± 2% +24.1% 28847 ± 6% perf-stat.ps.iTLB-loads
2.607e+10 +9.4% 2.851e+10 perf-stat.ps.instructions
169.52 +53.7% 260.52 ± 14% perf-stat.ps.node-load-misses
47371107 ± 4% +125.3% 1.067e+08 ± 4% perf-stat.ps.node-loads
172.43 +51.1% 260.58 ± 14% perf-stat.ps.node-store-misses
2.041e+08 +4.9% 2.141e+08 perf-stat.ps.node-stores
8.004e+12 +9.3% 8.75e+12 perf-stat.total.instructions
37.73 ± 4% -20.8 16.90 ± 7% perf-profile.calltrace.cycles-pp.__alloc_pages_slowpath.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead.generic_file_buffered_read
39.79 ± 4% -18.3 21.44 ± 7% perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead.generic_file_buffered_read.xfs_file_buffered_aio_read
32.37 ± 5% -17.5 14.85 ± 7% perf-profile.calltrace.cycles-pp.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead
32.33 ± 5% -17.5 14.84 ± 7% perf-profile.calltrace.cycles-pp.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask.__do_page_cache_readahead
31.78 ± 5% -17.0 14.74 ± 7% perf-profile.calltrace.cycles-pp.shrink_lruvec.shrink_node.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath
32.31 ± 5% -16.8 15.55 ± 7% perf-profile.calltrace.cycles-pp.shrink_node.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask
65.31 ± 3% -16.7 48.57 ± 5% perf-profile.calltrace.cycles-pp.__do_page_cache_readahead.ondemand_readahead.generic_file_buffered_read.xfs_file_buffered_aio_read.xfs_file_read_iter
65.33 ± 3% -16.7 48.59 ± 5% perf-profile.calltrace.cycles-pp.ondemand_readahead.generic_file_buffered_read.xfs_file_buffered_aio_read.xfs_file_read_iter.new_sync_read
23.98 ± 4% -9.3 14.72 ± 7% perf-profile.calltrace.cycles-pp.shrink_inactive_list.shrink_lruvec.shrink_node.do_try_to_free_pages.try_to_free_pages
15.55 ± 5% -8.3 7.21 ± 4% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.shrink_inactive_list.shrink_lruvec.shrink_node
7.75 ± 30% -7.8 0.00 perf-profile.calltrace.cycles-pp.shrink_active_list.shrink_lruvec.shrink_node.do_try_to_free_pages.try_to_free_pages
13.91 ± 6% -7.3 6.56 ± 9% perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.shrink_inactive_list.shrink_lruvec.shrink_node.do_try_to_free_pages
7.16 ± 30% -7.2 0.00 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.shrink_active_list.shrink_lruvec.shrink_node
6.86 ± 30% -6.9 0.00 perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.shrink_active_list.shrink_lruvec.shrink_node.do_try_to_free_pages
84.18 ± 2% -4.2 80.01 ± 2% perf-profile.calltrace.cycles-pp.generic_file_buffered_read.xfs_file_buffered_aio_read.xfs_file_read_iter.new_sync_read.vfs_read
85.19 -3.7 81.50 ± 2% perf-profile.calltrace.cycles-pp.xfs_file_buffered_aio_read.xfs_file_read_iter.new_sync_read.vfs_read.ksys_read
5.99 ± 6% -3.3 2.73 ± 5% 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
6.04 ± 6% -3.2 2.79 ± 5% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.pagevec_lru_move_fn.__lru_cache_add.add_to_page_cache_lru.iomap_readpages_actor
4.79 ± 14% -3.2 1.59 ± 13% perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_pages_slowpath.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead
7.72 ± 4% -3.1 4.63 ± 6% perf-profile.calltrace.cycles-pp.pagevec_lru_move_fn.__lru_cache_add.add_to_page_cache_lru.iomap_readpages_actor.iomap_apply
4.59 ± 14% -3.1 1.51 ± 13% perf-profile.calltrace.cycles-pp.rmqueue.get_page_from_freelist.__alloc_pages_slowpath.__alloc_pages_nodemask.__do_page_cache_readahead
7.92 ± 3% -3.1 4.84 ± 6% perf-profile.calltrace.cycles-pp.__lru_cache_add.add_to_page_cache_lru.iomap_readpages_actor.iomap_apply.iomap_readpages
3.60 ± 11% -2.5 1.12 ± 20% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__remove_mapping.shrink_page_list.shrink_inactive_list.shrink_lruvec
3.35 ± 11% -2.4 0.95 ± 21% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__remove_mapping.shrink_page_list.shrink_inactive_list
11.26 ± 2% -2.4 8.86 ± 5% perf-profile.calltrace.cycles-pp.add_to_page_cache_lru.iomap_readpages_actor.iomap_apply.iomap_readpages.read_pages
7.24 ± 4% -2.3 4.90 ± 6% perf-profile.calltrace.cycles-pp.__remove_mapping.shrink_page_list.shrink_inactive_list.shrink_lruvec.shrink_node
3.19 ± 13% -2.2 1.03 ± 10% perf-profile.calltrace.cycles-pp.rmqueue_bulk.rmqueue.get_page_from_freelist.__alloc_pages_slowpath.__alloc_pages_nodemask
8.22 ± 3% -2.0 6.21 ± 7% perf-profile.calltrace.cycles-pp.shrink_page_list.shrink_inactive_list.shrink_lruvec.shrink_node.do_try_to_free_pages
1.68 ± 26% -1.0 0.68 ± 57% perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.shrink_inactive_list.shrink_lruvec.shrink_node.balance_pgdat
1.58 ± 20% -0.7 0.93 ± 16% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.rmqueue_bulk.rmqueue.get_page_from_freelist
1.12 ± 19% -0.3 0.86 ± 14% perf-profile.calltrace.cycles-pp.isolate_lru_pages.shrink_inactive_list.shrink_lruvec.shrink_node.do_try_to_free_pages
0.00 +0.5 0.55 ± 6% perf-profile.calltrace.cycles-pp.down_read.xfs_ilock.xfs_file_buffered_aio_read.xfs_file_read_iter.new_sync_read
0.00 +0.6 0.56 ± 6% perf-profile.calltrace.cycles-pp.touch_atime.generic_file_buffered_read.xfs_file_buffered_aio_read.xfs_file_read_iter.new_sync_read
0.00 +0.6 0.61 ± 12% perf-profile.calltrace.cycles-pp.do_shrink_slab.shrink_slab.shrink_node.do_try_to_free_pages.try_to_free_pages
0.00 +0.6 0.61 ± 12% perf-profile.calltrace.cycles-pp.shrink_slab.shrink_node.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath
0.00 +0.6 0.63 ± 6% perf-profile.calltrace.cycles-pp.xfs_ilock.xfs_file_buffered_aio_read.xfs_file_read_iter.new_sync_read.vfs_read
0.00 +0.6 0.63 ± 6% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.write
0.14 ±173% +0.6 0.78 ± 4% perf-profile.calltrace.cycles-pp.security_file_permission.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.6 0.65 ± 9% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.read
0.00 +0.7 0.68 ± 6% perf-profile.calltrace.cycles-pp.security_file_permission.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.02 ± 14% +0.7 1.71 ± 4% perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
0.00 +0.7 0.72 ± 11% perf-profile.calltrace.cycles-pp.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask.alloc_slab_page.new_slab
0.00 +0.7 0.72 ± 11% perf-profile.calltrace.cycles-pp.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask.alloc_slab_page
0.00 +0.7 0.73 ± 10% perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.alloc_slab_page.new_slab.___slab_alloc.__slab_alloc
0.00 +0.7 0.73 ± 10% perf-profile.calltrace.cycles-pp.__alloc_pages_slowpath.__alloc_pages_nodemask.alloc_slab_page.new_slab.___slab_alloc
0.00 +0.7 0.73 ± 10% perf-profile.calltrace.cycles-pp.new_slab.___slab_alloc.__slab_alloc.kmem_cache_alloc.xas_nomem
0.00 +0.7 0.73 ± 10% perf-profile.calltrace.cycles-pp.alloc_slab_page.new_slab.___slab_alloc.__slab_alloc.kmem_cache_alloc
0.00 +0.7 0.74 ± 11% perf-profile.calltrace.cycles-pp.kmem_cache_alloc.xas_nomem.__add_to_page_cache_locked.add_to_page_cache_lru.iomap_readpages_actor
0.00 +0.7 0.74 ± 11% perf-profile.calltrace.cycles-pp.__slab_alloc.kmem_cache_alloc.xas_nomem.__add_to_page_cache_locked.add_to_page_cache_lru
0.00 +0.7 0.74 ± 11% perf-profile.calltrace.cycles-pp.___slab_alloc.__slab_alloc.kmem_cache_alloc.xas_nomem.__add_to_page_cache_locked
0.00 +0.8 0.75 ± 10% perf-profile.calltrace.cycles-pp.xas_nomem.__add_to_page_cache_locked.add_to_page_cache_lru.iomap_readpages_actor.iomap_apply
0.00 +0.9 0.93 ± 16% perf-profile.calltrace.cycles-pp._raw_spin_lock.rmqueue_bulk.rmqueue.get_page_from_freelist.__alloc_pages_nodemask
1.37 ± 15% +1.0 2.33 ± 4% perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
3.35 ± 12% +1.0 4.31 perf-profile.calltrace.cycles-pp.iomap_set_range_uptodate.iomap_readpage_actor.iomap_readpages_actor.iomap_apply.iomap_readpages
0.00 +1.0 1.01 ± 14% perf-profile.calltrace.cycles-pp.__list_del_entry_valid.rmqueue_bulk.rmqueue.get_page_from_freelist.__alloc_pages_nodemask
2.62 ± 12% +1.0 3.65 ± 4% perf-profile.calltrace.cycles-pp.__add_to_page_cache_locked.add_to_page_cache_lru.iomap_readpages_actor.iomap_apply.iomap_readpages
1.60 ± 15% +1.1 2.70 ± 4% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
1.71 ± 14% +1.2 2.89 ± 4% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write
0.00 +1.2 1.20 ± 7% perf-profile.calltrace.cycles-pp.xas_load.find_get_pages_contig.generic_file_buffered_read.xfs_file_buffered_aio_read.xfs_file_read_iter
2.09 ± 21% +1.2 3.34 ± 10% perf-profile.calltrace.cycles-pp.free_unref_page_list.shrink_page_list.shrink_inactive_list.shrink_lruvec.shrink_node
1.39 ± 34% +1.6 2.94 ± 11% perf-profile.calltrace.cycles-pp.free_pcppages_bulk.free_unref_page_list.shrink_page_list.shrink_inactive_list.shrink_lruvec
2.52 ± 15% +1.7 4.23 ± 5% perf-profile.calltrace.cycles-pp.write
0.00 +2.4 2.38 ± 9% perf-profile.calltrace.cycles-pp.rmqueue_bulk.rmqueue.get_page_from_freelist.__alloc_pages_nodemask.__do_page_cache_readahead
1.36 ± 17% +2.6 3.93 ± 3% perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead.generic_file_buffered_read
8.62 ± 10% +2.7 11.36 ± 4% perf-profile.calltrace.cycles-pp.memset_erms.iomap_readpage_actor.iomap_readpages_actor.iomap_apply.iomap_readpages
0.13 ±173% +3.2 3.28 ± 3% perf-profile.calltrace.cycles-pp.rmqueue.get_page_from_freelist.__alloc_pages_nodemask.__do_page_cache_readahead.ondemand_readahead
12.58 ± 10% +3.8 16.39 ± 4% perf-profile.calltrace.cycles-pp.iomap_readpage_actor.iomap_readpages_actor.iomap_apply.iomap_readpages.read_pages
0.00 +4.5 4.50 ± 4% perf-profile.calltrace.cycles-pp.find_get_pages_contig.generic_file_buffered_read.xfs_file_buffered_aio_read.xfs_file_read_iter.new_sync_read
10.27 ± 2% +13.1 23.39 ± 3% perf-profile.calltrace.cycles-pp.copy_user_enhanced_fast_string.copyout.copy_page_to_iter.generic_file_buffered_read.xfs_file_buffered_aio_read
10.38 ± 2% +13.2 23.55 ± 3% perf-profile.calltrace.cycles-pp.copyout.copy_page_to_iter.generic_file_buffered_read.xfs_file_buffered_aio_read.xfs_file_read_iter
11.01 ± 2% +13.6 24.62 ± 3% perf-profile.calltrace.cycles-pp.copy_page_to_iter.generic_file_buffered_read.xfs_file_buffered_aio_read.xfs_file_read_iter.new_sync_read
39.16 ± 5% -23.9 15.22 ± 5% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
38.34 ± 4% -20.4 17.98 ± 6% perf-profile.children.cycles-pp.__alloc_pages_slowpath
40.43 ± 3% -17.9 22.54 ± 6% perf-profile.children.cycles-pp.__alloc_pages_nodemask
38.29 ± 2% -17.2 21.06 ± 3% perf-profile.children.cycles-pp.shrink_lruvec
32.95 ± 5% -17.1 15.88 ± 6% perf-profile.children.cycles-pp.try_to_free_pages
32.91 ± 5% -17.0 15.87 ± 6% perf-profile.children.cycles-pp.do_try_to_free_pages
38.84 ± 2% -16.9 21.89 ± 2% perf-profile.children.cycles-pp.shrink_node
65.32 ± 3% -16.7 48.58 ± 5% perf-profile.children.cycles-pp.__do_page_cache_readahead
65.33 ± 3% -16.7 48.59 ± 5% perf-profile.children.cycles-pp.ondemand_readahead
23.74 ± 6% -15.1 8.64 ± 5% perf-profile.children.cycles-pp._raw_spin_lock_irq
29.71 ± 5% -8.7 21.04 ± 3% perf-profile.children.cycles-pp.shrink_inactive_list
13.32 ± 8% -8.6 4.72 ± 7% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
8.54 ± 28% -8.5 0.00 perf-profile.children.cycles-pp.shrink_active_list
11.64 ± 9% -6.9 4.71 ± 6% perf-profile.children.cycles-pp.pagevec_lru_move_fn
84.19 ± 2% -4.2 80.04 ± 2% perf-profile.children.cycles-pp.generic_file_buffered_read
85.21 -3.7 81.54 ± 2% perf-profile.children.cycles-pp.xfs_file_buffered_aio_read
7.93 ± 3% -3.1 4.85 ± 6% perf-profile.children.cycles-pp.__lru_cache_add
11.27 ± 2% -2.4 8.88 ± 5% perf-profile.children.cycles-pp.add_to_page_cache_lru
7.35 ± 4% -2.1 5.26 ± 3% perf-profile.children.cycles-pp.__remove_mapping
0.85 ± 19% -0.6 0.24 ± 25% perf-profile.children.cycles-pp.worker_thread
0.79 ± 20% -0.6 0.20 ± 29% perf-profile.children.cycles-pp.drain_local_pages_wq
0.79 ± 20% -0.6 0.20 ± 29% perf-profile.children.cycles-pp.drain_pages
0.81 ± 20% -0.6 0.22 ± 25% perf-profile.children.cycles-pp.process_one_work
0.78 ± 21% -0.6 0.20 ± 29% perf-profile.children.cycles-pp.drain_pages_zone
0.40 ± 21% -0.3 0.08 ± 11% perf-profile.children.cycles-pp.lru_add_drain
0.36 ± 22% -0.3 0.07 ± 11% perf-profile.children.cycles-pp.lru_add_drain_cpu
0.43 ± 15% -0.3 0.15 ± 29% perf-profile.children.cycles-pp.workingset_refault
0.79 ± 8% -0.2 0.59 ± 5% perf-profile.children.cycles-pp.advance_inactive_age
0.49 -0.2 0.30 ± 5% perf-profile.children.cycles-pp.__mod_lruvec_state
0.30 ± 10% -0.2 0.14 ± 3% perf-profile.children.cycles-pp.__zone_watermark_ok
0.49 ± 8% -0.1 0.35 ± 5% perf-profile.children.cycles-pp.__isolate_lru_page
0.19 ± 54% -0.1 0.08 ± 91% perf-profile.children.cycles-pp.__get_free_pages
0.21 ± 3% -0.1 0.10 ± 4% perf-profile.children.cycles-pp.wake_all_kswapds
0.22 ± 41% -0.1 0.12 ± 35% perf-profile.children.cycles-pp.forkshell
0.20 ± 45% -0.1 0.11 ± 40% perf-profile.children.cycles-pp.__libc_fork
0.26 ± 7% -0.1 0.19 ± 6% perf-profile.children.cycles-pp.__mod_node_page_state
0.09 ± 13% -0.1 0.03 ±102% perf-profile.children.cycles-pp.pte_alloc_one
0.12 ± 13% -0.0 0.07 ± 24% perf-profile.children.cycles-pp.do_user_addr_fault
0.12 ± 11% -0.0 0.08 ± 19% perf-profile.children.cycles-pp.page_fault
0.12 ± 10% -0.0 0.07 ± 15% perf-profile.children.cycles-pp.handle_mm_fault
0.12 ± 10% -0.0 0.07 ± 15% perf-profile.children.cycles-pp.__handle_mm_fault
0.07 ± 12% -0.0 0.03 ±100% perf-profile.children.cycles-pp.super_cache_count
0.22 -0.0 0.18 ± 7% perf-profile.children.cycles-pp.release_pages
0.09 ± 9% -0.0 0.05 ± 62% perf-profile.children.cycles-pp.do_fault
0.28 ± 2% -0.0 0.24 ± 7% perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore
0.27 ± 4% -0.0 0.24 ± 4% perf-profile.children.cycles-pp.__mod_memcg_state
0.17 ± 3% -0.0 0.14 ± 3% perf-profile.children.cycles-pp.__mod_zone_page_state
0.09 ± 7% -0.0 0.07 ± 6% perf-profile.children.cycles-pp.mem_cgroup_update_lru_size
0.08 ± 5% -0.0 0.07 ± 7% perf-profile.children.cycles-pp.mem_cgroup_page_lruvec
0.07 ± 7% +0.0 0.08 perf-profile.children.cycles-pp.PageHuge
0.07 ± 17% +0.0 0.09 ± 4% perf-profile.children.cycles-pp.generic_file_read_iter
0.11 ± 7% +0.0 0.14 ± 5% perf-profile.children.cycles-pp.__x86_indirect_thunk_rax
0.07 ± 7% +0.0 0.09 ± 8% perf-profile.children.cycles-pp.__x64_sys_read
0.29 ± 7% +0.0 0.32 ± 3% perf-profile.children.cycles-pp.mem_cgroup_charge_statistics
0.17 ± 10% +0.0 0.20 ± 6% perf-profile.children.cycles-pp.free_unref_page_commit
0.08 ± 10% +0.0 0.12 ± 7% perf-profile.children.cycles-pp.__x64_sys_write
0.05 +0.0 0.08 ± 5% perf-profile.children.cycles-pp.xas_alloc
0.14 ± 5% +0.0 0.18 ± 3% perf-profile.children.cycles-pp.task_tick_fair
0.01 ±173% +0.0 0.05 ± 9% perf-profile.children.cycles-pp.list_lru_add
0.06 ± 7% +0.0 0.10 ± 12% perf-profile.children.cycles-pp.timestamp_truncate
0.10 ± 7% +0.0 0.15 ± 7% perf-profile.children.cycles-pp.write_null
0.07 ± 12% +0.0 0.12 ± 17% perf-profile.children.cycles-pp.__vfs_read
0.20 ± 3% +0.0 0.25 ± 5% perf-profile.children.cycles-pp.scheduler_tick
0.01 ±173% +0.1 0.06 ± 13% perf-profile.children.cycles-pp.xas_free_nodes
0.12 ± 13% +0.1 0.18 ± 6% perf-profile.children.cycles-pp.apparmor_file_permission
0.45 ± 6% +0.1 0.51 ± 2% perf-profile.children.cycles-pp.mem_cgroup_commit_charge
0.00 +0.1 0.06 ± 7% perf-profile.children.cycles-pp.ktime_get_coarse_real_ts64
0.08 ± 6% +0.1 0.14 ± 3% perf-profile.children.cycles-pp.rcu_do_batch
0.00 +0.1 0.07 ± 12% perf-profile.children.cycles-pp.iov_iter_init
0.01 ±173% +0.1 0.08 ± 5% perf-profile.children.cycles-pp.kmem_cache_free
0.15 ± 5% +0.1 0.22 ± 3% perf-profile.children.cycles-pp.rcu_all_qs
0.08 ± 5% +0.1 0.16 ± 5% perf-profile.children.cycles-pp.rcu_core
0.32 ± 4% +0.1 0.40 ± 4% perf-profile.children.cycles-pp.tick_sched_timer
0.30 ± 4% +0.1 0.38 ± 3% perf-profile.children.cycles-pp.tick_sched_handle
0.29 ± 3% +0.1 0.37 ± 3% perf-profile.children.cycles-pp.update_process_times
0.12 ± 8% +0.1 0.21 ± 8% perf-profile.children.cycles-pp.__softirqentry_text_start
0.00 +0.1 0.08 ± 13% perf-profile.children.cycles-pp.run_ksoftirqd
0.00 +0.1 0.09 ± 11% perf-profile.children.cycles-pp.smpboot_thread_fn
0.12 ± 6% +0.1 0.22 ± 6% perf-profile.children.cycles-pp.fpregs_assert_state_consistent
0.29 ± 4% +0.1 0.39 ± 3% perf-profile.children.cycles-pp._cond_resched
0.14 ± 5% +0.1 0.24 ± 3% perf-profile.children.cycles-pp.current_time
0.20 ± 2% +0.1 0.30 ± 3% perf-profile.children.cycles-pp.__might_sleep
0.41 ± 2% +0.1 0.53 ± 4% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.26 ± 4% +0.1 0.39 ± 4% perf-profile.children.cycles-pp.xas_start
0.22 ± 5% +0.1 0.35 ± 6% perf-profile.children.cycles-pp.rw_verify_area
0.53 ± 3% +0.1 0.68 ± 2% perf-profile.children.cycles-pp.hrtimer_interrupt
0.37 ± 3% +0.2 0.52 perf-profile.children.cycles-pp.fsnotify_parent
0.16 ± 2% +0.2 0.32 ± 3% perf-profile.children.cycles-pp.aa_file_perm
0.27 ± 10% +0.2 0.42 ± 2% perf-profile.children.cycles-pp.up_read
0.97 ± 10% +0.2 1.13 ± 6% perf-profile.children.cycles-pp.xas_create
0.56 ± 2% +0.2 0.72 ± 2% perf-profile.children.cycles-pp.___might_sleep
0.22 ± 3% +0.2 0.39 ± 4% perf-profile.children.cycles-pp.__might_fault
0.69 ± 3% +0.2 0.88 perf-profile.children.cycles-pp.smp_apic_timer_interrupt
0.35 ± 9% +0.2 0.54 ± 2% perf-profile.children.cycles-pp.xfs_iunlock
0.75 ± 3% +0.2 0.96 perf-profile.children.cycles-pp.apic_timer_interrupt
0.51 +0.2 0.72 ± 2% perf-profile.children.cycles-pp.down_read
1.50 ± 9% +0.2 1.75 ± 4% perf-profile.children.cycles-pp.xas_store
0.33 ± 5% +0.2 0.57 ± 8% perf-profile.children.cycles-pp.atime_needs_update
0.55 ± 2% +0.2 0.80 ± 2% perf-profile.children.cycles-pp.xfs_ilock
0.46 ± 5% +0.3 0.74 ± 2% perf-profile.children.cycles-pp.__fget_light
0.39 ± 4% +0.3 0.69 ± 7% perf-profile.children.cycles-pp.touch_atime
0.49 ± 4% +0.3 0.80 ± 2% perf-profile.children.cycles-pp.shrink_slab
0.48 ± 3% +0.3 0.79 ± 3% perf-profile.children.cycles-pp.do_shrink_slab
0.54 ± 5% +0.3 0.86 ± 2% perf-profile.children.cycles-pp.__fdget_pos
0.59 ± 3% +0.3 0.93 ± 3% perf-profile.children.cycles-pp.fsnotify
0.32 ± 8% +0.4 0.69 ± 3% perf-profile.children.cycles-pp.shadow_lru_isolate
0.33 ± 8% +0.4 0.70 ± 3% perf-profile.children.cycles-pp.__list_lru_walk_one
0.33 ± 8% +0.4 0.70 ± 3% perf-profile.children.cycles-pp.list_lru_walk_one_irq
0.91 ± 2% +0.5 1.38 ± 2% perf-profile.children.cycles-pp.syscall_return_via_sysret
0.76 +0.5 1.24 ± 3% perf-profile.children.cycles-pp.common_file_perm
0.89 ± 5% +0.5 1.42 ± 4% perf-profile.children.cycles-pp.entry_SYSCALL_64
0.26 ± 38% +0.7 0.92 ± 13% perf-profile.children.cycles-pp.xas_nomem
0.24 ± 41% +0.7 0.91 ± 14% perf-profile.children.cycles-pp.alloc_slab_page
0.27 ± 39% +0.7 0.94 ± 14% perf-profile.children.cycles-pp.___slab_alloc
0.24 ± 42% +0.7 0.92 ± 14% perf-profile.children.cycles-pp.new_slab
0.27 ± 39% +0.7 0.94 ± 13% perf-profile.children.cycles-pp.__slab_alloc
1.16 ± 3% +0.7 1.84 ± 3% perf-profile.children.cycles-pp.security_file_permission
0.29 ± 35% +0.7 0.98 ± 13% perf-profile.children.cycles-pp.kmem_cache_alloc
1.44 ± 4% +0.8 2.20 perf-profile.children.cycles-pp.vfs_write
1.90 ± 5% +0.8 2.73 ± 2% perf-profile.children.cycles-pp.xas_load
2.83 ± 5% +1.0 3.79 ± 3% perf-profile.children.cycles-pp.__add_to_page_cache_locked
3.43 ± 9% +1.0 4.43 ± 5% perf-profile.children.cycles-pp.iomap_set_range_uptodate
1.88 ± 4% +1.0 2.93 perf-profile.children.cycles-pp.ksys_write
2.43 ± 19% +1.5 3.92 ± 11% perf-profile.children.cycles-pp.free_unref_page_list
2.73 ± 14% +1.8 4.57 ± 5% perf-profile.children.cycles-pp.write
8.64 ± 10% +2.7 11.38 ± 4% perf-profile.children.cycles-pp.memset_erms
12.59 ± 10% +3.8 16.41 ± 4% perf-profile.children.cycles-pp.iomap_readpage_actor
0.00 +4.5 4.51 ± 4% perf-profile.children.cycles-pp.find_get_pages_contig
10.34 ± 2% +13.2 23.50 ± 3% perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
10.38 ± 2% +13.2 23.56 ± 3% perf-profile.children.cycles-pp.copyout
11.03 ± 2% +13.6 24.66 ± 3% perf-profile.children.cycles-pp.copy_page_to_iter
39.15 ± 5% -23.9 15.21 ± 5% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
1.01 ± 10% -0.4 0.60 ± 2% perf-profile.self.cycles-pp.get_page_from_freelist
0.78 ± 8% -0.2 0.58 ± 5% perf-profile.self.cycles-pp.advance_inactive_age
0.28 ± 13% -0.2 0.10 ± 34% perf-profile.self.cycles-pp.workingset_refault
0.49 ± 8% -0.1 0.35 ± 5% perf-profile.self.cycles-pp.__isolate_lru_page
0.27 ± 11% -0.1 0.12 ± 4% perf-profile.self.cycles-pp.__zone_watermark_ok
0.23 ± 8% -0.1 0.11 ± 7% perf-profile.self.cycles-pp.__alloc_pages_slowpath
0.19 ± 7% -0.1 0.11 ± 4% perf-profile.self.cycles-pp.__mod_lruvec_state
0.52 ± 5% -0.1 0.45 perf-profile.self.cycles-pp.__remove_mapping
0.33 ± 4% -0.1 0.27 ± 6% perf-profile.self.cycles-pp.isolate_lru_pages
0.24 ± 6% -0.1 0.18 ± 6% perf-profile.self.cycles-pp.__mod_node_page_state
0.13 ± 6% -0.1 0.07 ± 7% perf-profile.self.cycles-pp.wake_all_kswapds
0.19 ± 3% -0.0 0.15 ± 7% perf-profile.self.cycles-pp.release_pages
0.27 ± 4% -0.0 0.23 ± 3% perf-profile.self.cycles-pp.__mod_memcg_state
0.09 ± 12% -0.0 0.06 perf-profile.self.cycles-pp.mem_cgroup_update_lru_size
0.17 ± 3% -0.0 0.14 ± 3% perf-profile.self.cycles-pp.__mod_zone_page_state
0.08 ± 5% -0.0 0.07 ± 7% perf-profile.self.cycles-pp.mem_cgroup_page_lruvec
0.08 ± 8% +0.0 0.10 ± 7% perf-profile.self.cycles-pp.xas_init_marks
0.10 ± 15% +0.0 0.12 ± 11% perf-profile.self.cycles-pp.iomap_page_create
0.06 ± 14% +0.0 0.08 ± 8% perf-profile.self.cycles-pp.__x64_sys_read
0.05 +0.0 0.07 ± 14% perf-profile.self.cycles-pp.copyout
0.08 ± 5% +0.0 0.11 ± 6% perf-profile.self.cycles-pp.xfs_file_buffered_aio_read
0.04 ± 57% +0.0 0.07 ± 6% perf-profile.self.cycles-pp.PageHuge
0.04 ± 58% +0.0 0.07 ± 5% perf-profile.self.cycles-pp.generic_file_read_iter
0.06 ± 6% +0.0 0.10 ± 5% perf-profile.self.cycles-pp.xfs_ilock
0.04 ± 58% +0.0 0.07 ± 14% perf-profile.self.cycles-pp.hrtimer_interrupt
0.05 ± 9% +0.0 0.09 ± 13% perf-profile.self.cycles-pp.timestamp_truncate
0.10 ± 10% +0.0 0.14 ± 5% perf-profile.self.cycles-pp._cond_resched
0.06 ± 14% +0.0 0.10 ± 24% perf-profile.self.cycles-pp.__vfs_read
0.09 ± 8% +0.0 0.14 ± 8% perf-profile.self.cycles-pp.__fdget_pos
0.09 ± 12% +0.0 0.13 ± 5% perf-profile.self.cycles-pp.xfs_iunlock
0.01 ±173% +0.0 0.06 ± 7% perf-profile.self.cycles-pp._raw_spin_lock
0.09 ± 7% +0.0 0.14 ± 8% perf-profile.self.cycles-pp.write_null
0.11 ± 12% +0.0 0.16 ± 5% perf-profile.self.cycles-pp.apparmor_file_permission
0.00 +0.1 0.05 ± 9% perf-profile.self.cycles-pp.__vfs_write
0.00 +0.1 0.06 ± 9% perf-profile.self.cycles-pp.ktime_get_coarse_real_ts64
0.00 +0.1 0.06 ± 15% perf-profile.self.cycles-pp.iov_iter_init
0.06 ± 6% +0.1 0.12 ± 5% perf-profile.self.cycles-pp.touch_atime
0.03 ±100% +0.1 0.09 ± 5% perf-profile.self.cycles-pp.current_time
0.11 ± 3% +0.1 0.17 ± 6% perf-profile.self.cycles-pp.rcu_all_qs
0.10 ± 5% +0.1 0.16 ± 9% perf-profile.self.cycles-pp.__might_fault
0.31 ± 8% +0.1 0.38 ± 2% perf-profile.self.cycles-pp.xas_store
0.12 ± 6% +0.1 0.20 ± 5% perf-profile.self.cycles-pp.ksys_write
0.11 ± 7% +0.1 0.18 ± 5% perf-profile.self.cycles-pp.ksys_read
0.18 ± 2% +0.1 0.26 ± 4% perf-profile.self.cycles-pp.__might_sleep
0.12 ± 6% +0.1 0.21 ± 5% perf-profile.self.cycles-pp.fpregs_assert_state_consistent
0.17 ± 8% +0.1 0.27 ± 6% perf-profile.self.cycles-pp.security_file_permission
0.30 ± 2% +0.1 0.41 perf-profile.self.cycles-pp.down_read
0.24 ± 3% +0.1 0.36 ± 5% perf-profile.self.cycles-pp.xas_start
0.30 ± 3% +0.1 0.43 ± 4% perf-profile.self.cycles-pp.new_sync_read
0.19 ± 8% +0.1 0.33 ± 14% perf-profile.self.cycles-pp.atime_needs_update
0.34 ± 2% +0.1 0.48 perf-profile.self.cycles-pp.fsnotify_parent
0.21 ± 6% +0.1 0.35 ± 7% perf-profile.self.cycles-pp.rw_verify_area
0.23 +0.1 0.37 ± 4% perf-profile.self.cycles-pp.vfs_read
0.25 ± 10% +0.1 0.39 ± 2% perf-profile.self.cycles-pp.up_read
0.23 ± 4% +0.2 0.39 ± 2% perf-profile.self.cycles-pp.copy_page_to_iter
0.15 ± 5% +0.2 0.30 ± 4% perf-profile.self.cycles-pp.aa_file_perm
0.32 ± 6% +0.2 0.47 ± 2% perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.54 ± 3% +0.2 0.69 ± 2% perf-profile.self.cycles-pp.___might_sleep
0.31 ± 5% +0.2 0.47 perf-profile.self.cycles-pp.vfs_write
0.30 ± 3% +0.2 0.46 ± 3% perf-profile.self.cycles-pp.do_syscall_64
0.30 ± 16% +0.2 0.50 ± 7% perf-profile.self.cycles-pp.write
0.32 ± 14% +0.2 0.52 ± 6% perf-profile.self.cycles-pp.read
0.10 ± 10% +0.2 0.34 ± 4% perf-profile.self.cycles-pp.rmqueue_bulk
0.44 ± 5% +0.3 0.70 ± 3% perf-profile.self.cycles-pp.__fget_light
0.45 ± 9% +0.3 0.73 ± 4% perf-profile.self.cycles-pp.xfs_file_read_iter
0.49 ± 4% +0.3 0.78 ± 2% perf-profile.self.cycles-pp.entry_SYSCALL_64
0.60 ± 2% +0.3 0.92 ± 3% perf-profile.self.cycles-pp.common_file_perm
0.57 ± 2% +0.3 0.90 ± 4% perf-profile.self.cycles-pp.fsnotify
0.90 +0.5 1.37 ± 2% perf-profile.self.cycles-pp.syscall_return_via_sysret
0.98 ± 17% +0.6 1.61 ± 12% perf-profile.self.cycles-pp.free_pcppages_bulk
1.63 ± 6% +0.7 2.32 ± 2% perf-profile.self.cycles-pp.xas_load
0.64 ± 4% +0.7 1.35 ± 3% perf-profile.self.cycles-pp.generic_file_buffered_read
3.39 ± 9% +1.0 4.35 ± 5% perf-profile.self.cycles-pp.iomap_set_range_uptodate
8.55 ± 10% +2.7 11.23 ± 4% perf-profile.self.cycles-pp.memset_erms
0.00 +3.0 2.96 ± 5% perf-profile.self.cycles-pp.find_get_pages_contig
10.22 ± 2% +13.0 23.26 ± 3% perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
vm-scalability.time.user_time
210 +---------------------------------------------------------------------+
200 |-+ O O O |
| O O O O O O O O O |
190 |-+ O O O |
180 |-+O |
| O O O O O O O |
170 |-+ |
160 |-+ |
150 |-+ |
| |
140 |-+ |
130 |-+ |
|.. .+.. .+..+..+. .+..+..+.. |
120 |-++. +. +. +..+.. .+..+.. .+..+.+..+ |
110 +---------------------------------------------------------------------+
vm-scalability.time.involuntary_context_switches
1.4e+06 +-----------------------------------------------------------------+
| .+.. +. |
1.3e+06 |-+ .+..+.+..+..+..+ +.. .. +.. |
| .+.. .+. + +.. +.. |
1.2e+06 |.+ +.+. +.. : + |
1.1e+06 |-+ : |
| + |
1e+06 |-+ |
| |
900000 |-+ |
800000 |-+ |
| O O O O O O O O O O O O O O O O |
700000 |-+ O O O O O |
| O O |
600000 +-----------------------------------------------------------------+
vm-scalability.throughput
2.4e+07 +-----------------------------------------------------------------+
| O O O O O O O O O O O O |
2.3e+07 |-+O O O O O O O O O O |
2.2e+07 |-+ O |
| |
2.1e+07 |-+ |
2e+07 |-+ |
| |
1.9e+07 |-+ |
1.8e+07 |-+ |
| |
1.7e+07 |-+ |
1.6e+07 |-.+.. .+..+.. |
|. + +..+.+..+..+..+.+..+..+..+.+..+..+..+.+..+ |
1.5e+07 +-----------------------------------------------------------------+
vm-scalability.median
750000 +------------------------------------------------------------------+
| O O O O O O O O O O O O O O O O O O O |
700000 |-+ O O O O |
| |
| |
650000 |-+ |
| |
600000 |-+ |
| |
550000 |-+ |
| |
| .+.. .+.. |
500000 |.+ +.+. +..+..+.+..+..+..+..+.+..+..+..+.+..+..+..+ |
| |
450000 +------------------------------------------------------------------+
vm-scalability.workload
7.5e+09 +-----------------------------------------------------------------+
| |
7e+09 |-+ O O O O O O O O |
| O O O O O O O O O O O O O O |
| O |
6.5e+09 |-+ |
| |
6e+09 |-+ |
| |
5.5e+09 |-+ |
| |
| |
5e+09 |-+ |
|..+..+.+..+..+..+.+..+..+..+.+..+..+..+.+..+..+..+.+..+ |
4.5e+09 +-----------------------------------------------------------------+
[*] 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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