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Date: Tue, 27 Nov 2018 14:25:04 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Andrea Arcangeli <aarcange@...hat.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
Michal Hocko <mhocko@...e.com>,
Stefan Priebe <s.priebe@...fihost.ag>,
Alex Williamson <alex.williamson@...hat.com>,
Mel Gorman <mgorman@...hsingularity.net>,
Zi Yan <zi.yan@...rutgers.edu>,
Vlastimil Babka <vbabka@...e.cz>,
David Rientjes <rientjes@...gle.com>,
"Kirill A. Shutemov" <kirill@...temov.name>,
Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [LKP] [mm] ac5b2c1891: vm-scalability.throughput -61.3% regression
Greeting,
FYI, we noticed a -61.3% regression of vm-scalability.throughput due to commit:
commit: ac5b2c18911ffe95c08d69273917f90212cf5659 ("mm: thp: relax __GFP_THISNODE for MADV_HUGEPAGE mappings")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: vm-scalability
on test machine: 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz with 128G memory
with following parameters:
runtime: 300
thp_enabled: always
thp_defrag: always
nr_task: 32
nr_ssd: 1
test: swap-w-seq
ucode: 0x3d
cpufreq_governor: performance
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/nr_ssd/nr_task/rootfs/runtime/tbox_group/test/testcase/thp_defrag/thp_enabled/ucode:
gcc-7/performance/x86_64-rhel-7.2/1/32/debian-x86_64-2018-04-03.cgz/300/lkp-hsw-ep4/swap-w-seq/vm-scalability/always/always/0x3d
commit:
94e297c50b ("include/linux/notifier.h: SRCU: fix ctags")
ac5b2c1891 ("mm: thp: relax __GFP_THISNODE for MADV_HUGEPAGE mappings")
94e297c50b529f5d ac5b2c18911ffe95c08d692739
---------------- --------------------------
%stddev %change %stddev
\ | \
0.57 ± 35% +258.8% 2.05 ± 4% vm-scalability.free_time
146022 ± 14% -40.5% 86833 ± 2% vm-scalability.median
29.29 ± 40% -89.6% 3.06 ± 26% vm-scalability.stddev
7454656 ± 9% -61.3% 2885836 ± 3% vm-scalability.throughput
189.21 ± 10% +52.4% 288.34 ± 2% vm-scalability.time.elapsed_time
189.21 ± 10% +52.4% 288.34 ± 2% vm-scalability.time.elapsed_time.max
8768 ± 3% +11.6% 9781 ± 5% vm-scalability.time.involuntary_context_switches
20320196 ± 2% -33.4% 13531732 ± 3% vm-scalability.time.maximum_resident_set_size
425945 ± 9% +17.4% 499908 ± 4% vm-scalability.time.minor_page_faults
253.79 ± 6% +62.0% 411.07 ± 4% vm-scalability.time.system_time
322.52 +8.0% 348.18 vm-scalability.time.user_time
246150 ± 12% +50.3% 370019 ± 4% vm-scalability.time.voluntary_context_switches
7746519 ± 11% +49.0% 11538799 ± 4% cpuidle.C6.usage
192240 ± 10% +44.3% 277460 ± 8% interrupts.CAL:Function_call_interrupts
22.45 ± 85% -80.6% 4.36 ±173% sched_debug.cfs_rq:/.MIN_vruntime.avg
22.45 ± 85% -80.6% 4.36 ±173% sched_debug.cfs_rq:/.max_vruntime.avg
29.36 ± 13% +10.8% 32.52 ± 14% boot-time.boot
24.28 ± 16% +12.4% 27.30 ± 16% boot-time.dhcp
1597 ± 15% +10.2% 1760 ± 15% boot-time.idle
68.25 -9.8 58.48 ± 2% mpstat.cpu.idle%
27.12 ± 5% +10.3 37.42 ± 3% mpstat.cpu.iowait%
2.48 ± 11% -0.8 1.73 ± 2% mpstat.cpu.usr%
3422396 ± 14% +46.6% 5018492 ± 7% softirqs.RCU
1776561 ± 10% +52.4% 2707785 ± 2% softirqs.SCHED
5685772 ± 7% +54.3% 8774055 ± 3% softirqs.TIMER
7742519 ± 11% +49.0% 11534924 ± 4% turbostat.C6
29922317 ± 10% +55.0% 46366941 turbostat.IRQ
9.49 ± 64% -83.0% 1.62 ± 54% turbostat.Pkg%pc2
36878790 ± 27% -84.9% 5570259 ± 47% vmstat.memory.free
1.117e+08 ± 15% +73.5% 1.939e+08 ± 10% vmstat.memory.swpd
25.25 ± 4% +34.7% 34.00 vmstat.procs.b
513725 ± 7% +47.9% 759561 ± 12% numa-numastat.node0.local_node
35753 ±160% +264.7% 130386 ± 39% numa-numastat.node0.numa_foreign
519403 ± 6% +48.7% 772182 ± 12% numa-numastat.node0.numa_hit
35753 ±160% +264.7% 130386 ± 39% numa-numastat.node1.numa_miss
44315 ±138% +198.5% 132279 ± 40% numa-numastat.node1.other_node
32798032 ± 46% +80.6% 59228165 ± 2% numa-meminfo.node0.Active
32798009 ± 46% +80.6% 59228160 ± 2% numa-meminfo.node0.Active(anon)
33430762 ± 46% +80.8% 60429537 ± 2% numa-meminfo.node0.AnonHugePages
33572119 ± 46% +80.2% 60512777 ± 2% numa-meminfo.node0.AnonPages
1310559 ± 64% +86.4% 2442244 ± 2% numa-meminfo.node0.Inactive
1309969 ± 64% +86.4% 2442208 ± 2% numa-meminfo.node0.Inactive(anon)
30385359 ± 53% -90.7% 2821023 ± 44% numa-meminfo.node0.MemFree
35505047 ± 45% +77.6% 63055165 ± 2% numa-meminfo.node0.MemUsed
166560 ± 42% +130.2% 383345 ± 6% numa-meminfo.node0.PageTables
23702 ±105% -89.0% 2617 ± 44% numa-meminfo.node0.Shmem
1212 ± 65% +402.8% 6093 ± 57% numa-meminfo.node1.Shmem
8354144 ± 44% +77.1% 14798964 ± 2% numa-vmstat.node0.nr_active_anon
8552787 ± 44% +76.8% 15122222 ± 2% numa-vmstat.node0.nr_anon_pages
16648 ± 44% +77.1% 29492 ± 2% numa-vmstat.node0.nr_anon_transparent_hugepages
7436650 ± 53% -90.4% 712936 ± 44% numa-vmstat.node0.nr_free_pages
332106 ± 63% +83.8% 610268 ± 2% numa-vmstat.node0.nr_inactive_anon
41929 ± 41% +130.6% 96703 ± 6% numa-vmstat.node0.nr_page_table_pages
5900 ±106% -89.0% 650.75 ± 45% numa-vmstat.node0.nr_shmem
43336 ± 92% +151.2% 108840 ± 7% numa-vmstat.node0.nr_vmscan_write
43110 ± 92% +150.8% 108110 ± 7% numa-vmstat.node0.nr_written
8354142 ± 44% +77.1% 14798956 ± 2% numa-vmstat.node0.nr_zone_active_anon
332105 ± 63% +83.8% 610269 ± 2% numa-vmstat.node0.nr_zone_inactive_anon
321.50 ± 66% +384.9% 1559 ± 59% numa-vmstat.node1.nr_shmem
88815743 ± 10% +33.8% 1.188e+08 ± 2% meminfo.Active
88815702 ± 10% +33.8% 1.188e+08 ± 2% meminfo.Active(anon)
90446011 ± 11% +34.0% 1.212e+08 ± 2% meminfo.AnonHugePages
90613587 ± 11% +34.0% 1.214e+08 ± 2% meminfo.AnonPages
5.15e+08 ± 3% +22.2% 6.293e+08 ± 2% meminfo.Committed_AS
187419 ± 10% -19.6% 150730 ± 7% meminfo.DirectMap4k
3620693 ± 18% +35.3% 4897093 ± 2% meminfo.Inactive
3620054 ± 18% +35.3% 4896961 ± 2% meminfo.Inactive(anon)
36144979 ± 28% -87.0% 4715681 ± 57% meminfo.MemAvailable
36723121 ± 27% -85.9% 5179468 ± 52% meminfo.MemFree
395801 ± 2% +56.9% 620816 ± 4% meminfo.PageTables
178672 +15.1% 205668 ± 2% meminfo.SUnreclaim
249496 +12.6% 280897 meminfo.Slab
1751813 ± 2% +34.7% 2360437 ± 3% meminfo.SwapCached
6.716e+08 -12.4% 5.88e+08 ± 2% meminfo.SwapFree
3926 ± 17% +72.9% 6788 ± 13% meminfo.Writeback
1076 ± 3% +42.9% 1538 ± 4% slabinfo.biovec-max.active_objs
275.75 ± 2% +41.1% 389.00 ± 4% slabinfo.biovec-max.active_slabs
1104 ± 2% +41.0% 1557 ± 4% slabinfo.biovec-max.num_objs
275.75 ± 2% +41.1% 389.00 ± 4% slabinfo.biovec-max.num_slabs
588.25 ± 7% +17.9% 693.75 ± 7% slabinfo.file_lock_cache.active_objs
588.25 ± 7% +17.9% 693.75 ± 7% slabinfo.file_lock_cache.num_objs
13852 ± 3% +37.5% 19050 ± 3% slabinfo.kmalloc-4k.active_objs
1776 ± 3% +37.7% 2446 ± 3% slabinfo.kmalloc-4k.active_slabs
14217 ± 3% +37.7% 19577 ± 3% slabinfo.kmalloc-4k.num_objs
1776 ± 3% +37.7% 2446 ± 3% slabinfo.kmalloc-4k.num_slabs
158.25 ± 15% +54.0% 243.75 ± 18% slabinfo.nfs_read_data.active_objs
158.25 ± 15% +54.0% 243.75 ± 18% slabinfo.nfs_read_data.num_objs
17762 ± 4% +44.3% 25638 ± 4% slabinfo.pool_workqueue.active_objs
563.25 ± 3% +43.7% 809.25 ± 4% slabinfo.pool_workqueue.active_slabs
18048 ± 3% +43.5% 25906 ± 4% slabinfo.pool_workqueue.num_objs
563.25 ± 3% +43.7% 809.25 ± 4% slabinfo.pool_workqueue.num_slabs
34631 ± 3% +21.0% 41905 ± 2% slabinfo.radix_tree_node.active_objs
624.50 ± 3% +20.7% 753.75 ± 2% slabinfo.radix_tree_node.active_slabs
34998 ± 3% +20.7% 42228 ± 2% slabinfo.radix_tree_node.num_objs
624.50 ± 3% +20.7% 753.75 ± 2% slabinfo.radix_tree_node.num_slabs
9.727e+11 ± 8% +50.4% 1.463e+12 ± 12% perf-stat.branch-instructions
1.11 ± 12% +1.2 2.31 ± 8% perf-stat.branch-miss-rate%
1.078e+10 ± 13% +214.9% 3.395e+10 ± 17% perf-stat.branch-misses
3.17 ± 11% -1.5 1.65 ± 9% perf-stat.cache-miss-rate%
8.206e+08 ± 7% +49.4% 1.226e+09 ± 11% perf-stat.cache-misses
2.624e+10 ± 14% +187.0% 7.532e+10 ± 17% perf-stat.cache-references
1174249 ± 9% +52.3% 1788442 ± 3% perf-stat.context-switches
2.921e+12 ± 8% +71.1% 4.998e+12 ± 9% perf-stat.cpu-cycles
1437 ± 14% +85.1% 2661 ± 20% perf-stat.cpu-migrations
7.586e+08 ± 21% +134.7% 1.78e+09 ± 30% perf-stat.dTLB-load-misses
7.943e+11 ± 11% +84.3% 1.464e+12 ± 14% perf-stat.dTLB-loads
93963731 ± 22% +40.9% 1.324e+08 ± 10% perf-stat.dTLB-store-misses
3.394e+11 ± 6% +60.5% 5.449e+11 ± 10% perf-stat.dTLB-stores
1.531e+08 ± 22% +44.0% 2.204e+08 ± 11% perf-stat.iTLB-load-misses
1.688e+08 ± 23% +71.1% 2.888e+08 ± 12% perf-stat.iTLB-loads
3.267e+12 ± 7% +58.5% 5.177e+12 ± 13% perf-stat.instructions
3988 ± 43% +123.9% 8930 ± 22% perf-stat.major-faults
901474 ± 5% +34.2% 1209877 ± 2% perf-stat.minor-faults
31.24 ± 10% +21.7 52.91 ± 2% perf-stat.node-load-miss-rate%
1.135e+08 ± 16% +187.6% 3.264e+08 ± 13% perf-stat.node-load-misses
6.27 ± 17% +26.9 33.19 ± 4% perf-stat.node-store-miss-rate%
27354489 ± 15% +601.2% 1.918e+08 ± 13% perf-stat.node-store-misses
905482 ± 5% +34.6% 1218833 ± 2% perf-stat.page-faults
4254 ± 7% +58.5% 6741 ± 13% perf-stat.path-length
6364 ± 25% +84.1% 11715 ± 14% proc-vmstat.allocstall_movable
46439 ± 12% +100.4% 93049 ± 21% proc-vmstat.compact_migrate_scanned
22425696 ± 10% +29.0% 28932634 ± 6% proc-vmstat.nr_active_anon
22875703 ± 11% +29.2% 29560082 ± 6% proc-vmstat.nr_anon_pages
44620 ± 11% +29.2% 57643 ± 6% proc-vmstat.nr_anon_transparent_hugepages
879436 ± 28% -77.3% 199768 ± 98% proc-vmstat.nr_dirty_background_threshold
1761029 ± 28% -77.3% 400034 ± 98% proc-vmstat.nr_dirty_threshold
715724 +17.6% 841386 ± 3% proc-vmstat.nr_file_pages
8960545 ± 28% -76.4% 2111248 ± 93% proc-vmstat.nr_free_pages
904330 ± 18% +31.2% 1186458 ± 7% proc-vmstat.nr_inactive_anon
11137 ± 2% +27.1% 14154 ± 9% proc-vmstat.nr_isolated_anon
12566 +3.5% 13012 proc-vmstat.nr_kernel_stack
97491 ± 2% +52.6% 148790 ± 10% proc-vmstat.nr_page_table_pages
17674 +6.2% 18763 ± 2% proc-vmstat.nr_slab_reclaimable
44820 +13.0% 50645 ± 2% proc-vmstat.nr_slab_unreclaimable
135763 ± 9% +68.4% 228600 ± 6% proc-vmstat.nr_vmscan_write
1017 ± 10% +54.7% 1573 ± 14% proc-vmstat.nr_writeback
220023 ± 5% +73.5% 381732 ± 6% proc-vmstat.nr_written
22425696 ± 10% +29.0% 28932635 ± 6% proc-vmstat.nr_zone_active_anon
904330 ± 18% +31.2% 1186457 ± 7% proc-vmstat.nr_zone_inactive_anon
1018 ± 10% +55.3% 1581 ± 13% proc-vmstat.nr_zone_write_pending
145368 ± 48% +63.1% 237050 ± 17% proc-vmstat.numa_foreign
671.50 ± 96% +479.4% 3890 ± 71% proc-vmstat.numa_hint_faults
1122389 ± 9% +17.2% 1315380 ± 4% proc-vmstat.numa_hit
214722 ± 5% +21.6% 261076 ± 3% proc-vmstat.numa_huge_pte_updates
1108142 ± 9% +17.4% 1300857 ± 4% proc-vmstat.numa_local
145368 ± 48% +63.1% 237050 ± 17% proc-vmstat.numa_miss
159615 ± 44% +57.6% 251573 ± 16% proc-vmstat.numa_other
185.50 ± 81% +8278.6% 15542 ± 40% proc-vmstat.numa_pages_migrated
1.1e+08 ± 5% +21.6% 1.337e+08 ± 3% proc-vmstat.numa_pte_updates
688332 ±106% +177.9% 1913062 ± 3% proc-vmstat.pgalloc_dma32
72593045 ± 10% +51.1% 1.097e+08 ± 3% proc-vmstat.pgdeactivate
919059 ± 4% +35.1% 1241472 ± 2% proc-vmstat.pgfault
3716 ± 45% +120.3% 8186 ± 25% proc-vmstat.pgmajfault
7.25 ± 26% +4.2e+05% 30239 ± 25% proc-vmstat.pgmigrate_fail
5340 ±106% +264.0% 19438 ± 33% proc-vmstat.pgmigrate_success
2.837e+08 ± 10% +51.7% 4.303e+08 ± 3% proc-vmstat.pgpgout
211428 ± 6% +74.1% 368188 ± 4% proc-vmstat.pgrefill
219051 ± 5% +73.7% 380419 ± 5% proc-vmstat.pgrotated
559397 ± 8% +43.0% 800110 ± 11% proc-vmstat.pgscan_direct
32894 ± 59% +158.3% 84981 ± 23% proc-vmstat.pgscan_kswapd
207042 ± 8% +71.5% 355174 ± 5% proc-vmstat.pgsteal_direct
14745 ± 65% +104.3% 30121 ± 18% proc-vmstat.pgsteal_kswapd
70934968 ± 10% +51.7% 1.076e+08 ± 3% proc-vmstat.pswpout
5852284 ± 12% +145.8% 14382881 ± 5% proc-vmstat.slabs_scanned
13453 ± 24% +204.9% 41023 ± 8% proc-vmstat.thp_split_page_failed
138385 ± 10% +51.6% 209783 ± 3% proc-vmstat.thp_split_pmd
138385 ± 10% +51.6% 209782 ± 3% proc-vmstat.thp_swpout
4.61 ± 24% -1.2 3.37 ± 10% perf-profile.calltrace.cycles-pp.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state.do_idle
2.90 ± 18% -0.7 2.19 ± 8% perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state
1.86 ± 32% -0.6 1.22 ± 7% perf-profile.calltrace.cycles-pp.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt
1.60 ± 31% -0.5 1.08 ± 10% perf-profile.calltrace.cycles-pp.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt
2.98 ± 8% -0.5 2.48 ± 10% perf-profile.calltrace.cycles-pp.menu_select.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64
1.46 ± 32% -0.5 0.96 ± 9% perf-profile.calltrace.cycles-pp.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt
0.74 ± 27% -0.5 0.28 ±100% perf-profile.calltrace.cycles-pp.scheduler_tick.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues
1.03 ± 52% -0.4 0.63 ± 15% perf-profile.calltrace.cycles-pp.clockevents_program_event.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state
1.17 ± 19% -0.3 0.87 ± 11% perf-profile.calltrace.cycles-pp.tick_nohz_next_event.tick_nohz_get_sleep_length.menu_select.do_idle.cpu_startup_entry
0.80 ± 17% +0.4 1.22 ± 7% perf-profile.calltrace.cycles-pp.nvme_queue_rq.__blk_mq_try_issue_directly.blk_mq_try_issue_directly.blk_mq_make_request.generic_make_request
0.81 ± 16% +0.4 1.23 ± 8% perf-profile.calltrace.cycles-pp.blk_mq_try_issue_directly.blk_mq_make_request.generic_make_request.submit_bio.__swap_writepage
0.81 ± 16% +0.4 1.23 ± 8% perf-profile.calltrace.cycles-pp.__blk_mq_try_issue_directly.blk_mq_try_issue_directly.blk_mq_make_request.generic_make_request.submit_bio
0.52 ± 60% +0.5 1.03 ± 6% perf-profile.calltrace.cycles-pp.dma_pool_alloc.nvme_queue_rq.__blk_mq_try_issue_directly.blk_mq_try_issue_directly.blk_mq_make_request
1.64 ± 16% +0.6 2.21 ± 15% perf-profile.calltrace.cycles-pp.find_next_bit.blk_mq_queue_tag_busy_iter.blk_mq_in_flight.part_round_stats.blk_account_io_done
0.51 ± 64% +0.8 1.31 ± 17% perf-profile.calltrace.cycles-pp.bt_iter.blk_mq_queue_tag_busy_iter.blk_mq_in_flight.part_round_stats.blk_account_io_start
0.80 ± 25% +0.9 1.67 ± 19% perf-profile.calltrace.cycles-pp.blk_mq_queue_tag_busy_iter.blk_mq_in_flight.part_round_stats.blk_account_io_start.blk_mq_make_request
0.82 ± 24% +0.9 1.71 ± 19% perf-profile.calltrace.cycles-pp.blk_mq_in_flight.part_round_stats.blk_account_io_start.blk_mq_make_request.generic_make_request
0.82 ± 25% +0.9 1.73 ± 19% perf-profile.calltrace.cycles-pp.part_round_stats.blk_account_io_start.blk_mq_make_request.generic_make_request.submit_bio
0.87 ± 25% +1.0 1.87 ± 14% perf-profile.calltrace.cycles-pp.blk_account_io_start.blk_mq_make_request.generic_make_request.submit_bio.__swap_writepage
2.05 ± 15% +1.4 3.48 ± 7% perf-profile.calltrace.cycles-pp.generic_make_request.submit_bio.__swap_writepage.pageout.shrink_page_list
2.09 ± 15% +1.4 3.53 ± 7% perf-profile.calltrace.cycles-pp.__swap_writepage.pageout.shrink_page_list.shrink_inactive_list.shrink_node_memcg
2.05 ± 15% +1.4 3.49 ± 7% perf-profile.calltrace.cycles-pp.blk_mq_make_request.generic_make_request.submit_bio.__swap_writepage.pageout
2.06 ± 15% +1.4 3.50 ± 7% perf-profile.calltrace.cycles-pp.submit_bio.__swap_writepage.pageout.shrink_page_list.shrink_inactive_list
2.10 ± 15% +1.4 3.54 ± 6% perf-profile.calltrace.cycles-pp.pageout.shrink_page_list.shrink_inactive_list.shrink_node_memcg.shrink_node
3.31 ± 12% +1.5 4.83 ± 5% perf-profile.calltrace.cycles-pp.shrink_page_list.shrink_inactive_list.shrink_node_memcg.shrink_node.do_try_to_free_pages
3.33 ± 12% +1.5 4.86 ± 5% perf-profile.calltrace.cycles-pp.shrink_inactive_list.shrink_node_memcg.shrink_node.do_try_to_free_pages.try_to_free_pages
3.40 ± 12% +1.6 4.97 ± 6% perf-profile.calltrace.cycles-pp.shrink_node_memcg.shrink_node.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath
3.57 ± 12% +1.6 5.19 ± 7% perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.do_huge_pmd_anonymous_page.__handle_mm_fault.handle_mm_fault.__do_page_fault
3.48 ± 12% +1.6 5.13 ± 6% perf-profile.calltrace.cycles-pp.shrink_node.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask
3.48 ± 12% +1.6 5.13 ± 6% perf-profile.calltrace.cycles-pp.do_try_to_free_pages.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask.do_huge_pmd_anonymous_page
3.49 ± 12% +1.6 5.13 ± 6% perf-profile.calltrace.cycles-pp.try_to_free_pages.__alloc_pages_slowpath.__alloc_pages_nodemask.do_huge_pmd_anonymous_page.__handle_mm_fault
3.51 ± 12% +1.7 5.17 ± 6% perf-profile.calltrace.cycles-pp.__alloc_pages_slowpath.__alloc_pages_nodemask.do_huge_pmd_anonymous_page.__handle_mm_fault.handle_mm_fault
3.34 ± 14% +2.2 5.57 ± 21% perf-profile.calltrace.cycles-pp.blk_mq_check_inflight.bt_iter.blk_mq_queue_tag_busy_iter.blk_mq_in_flight.part_round_stats
9.14 ± 17% +5.5 14.66 ± 22% perf-profile.calltrace.cycles-pp.bt_iter.blk_mq_queue_tag_busy_iter.blk_mq_in_flight.part_round_stats.blk_account_io_done
12.10 ± 17% +6.8 18.89 ± 20% perf-profile.calltrace.cycles-pp.blk_mq_queue_tag_busy_iter.blk_mq_in_flight.part_round_stats.blk_account_io_done.blk_mq_end_request
13.88 ± 15% +7.1 21.01 ± 20% perf-profile.calltrace.cycles-pp.handle_irq.do_IRQ.ret_from_intr.cpuidle_enter_state.do_idle
13.87 ± 15% +7.1 21.00 ± 20% perf-profile.calltrace.cycles-pp.handle_edge_irq.handle_irq.do_IRQ.ret_from_intr.cpuidle_enter_state
13.97 ± 15% +7.1 21.10 ± 20% perf-profile.calltrace.cycles-pp.ret_from_intr.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary
13.94 ± 15% +7.1 21.07 ± 20% perf-profile.calltrace.cycles-pp.do_IRQ.ret_from_intr.cpuidle_enter_state.do_idle.cpu_startup_entry
12.50 ± 17% +7.2 19.65 ± 20% perf-profile.calltrace.cycles-pp.blk_account_io_done.blk_mq_end_request.blk_mq_complete_request.nvme_irq.__handle_irq_event_percpu
12.70 ± 17% +7.2 19.86 ± 21% perf-profile.calltrace.cycles-pp.blk_mq_end_request.blk_mq_complete_request.nvme_irq.__handle_irq_event_percpu.handle_irq_event_percpu
12.48 ± 17% +7.2 19.65 ± 20% perf-profile.calltrace.cycles-pp.part_round_stats.blk_account_io_done.blk_mq_end_request.blk_mq_complete_request.nvme_irq
12.46 ± 17% +7.2 19.63 ± 21% perf-profile.calltrace.cycles-pp.blk_mq_in_flight.part_round_stats.blk_account_io_done.blk_mq_end_request.blk_mq_complete_request
14.78 ± 18% +8.1 22.83 ± 20% perf-profile.calltrace.cycles-pp.blk_mq_complete_request.nvme_irq.__handle_irq_event_percpu.handle_irq_event_percpu.handle_irq_event
14.87 ± 18% +8.1 22.95 ± 21% perf-profile.calltrace.cycles-pp.nvme_irq.__handle_irq_event_percpu.handle_irq_event_percpu.handle_irq_event.handle_edge_irq
14.89 ± 18% +8.1 22.98 ± 21% perf-profile.calltrace.cycles-pp.handle_irq_event_percpu.handle_irq_event.handle_edge_irq.handle_irq.do_IRQ
14.90 ± 18% +8.1 22.99 ± 21% perf-profile.calltrace.cycles-pp.handle_irq_event.handle_edge_irq.handle_irq.do_IRQ.ret_from_intr
14.88 ± 18% +8.1 22.97 ± 21% perf-profile.calltrace.cycles-pp.__handle_irq_event_percpu.handle_irq_event_percpu.handle_irq_event.handle_edge_irq.handle_irq
4.79 ± 22% -1.3 3.52 ± 9% perf-profile.children.cycles-pp.hrtimer_interrupt
3.04 ± 16% -0.7 2.30 ± 8% perf-profile.children.cycles-pp.__hrtimer_run_queues
1.98 ± 29% -0.7 1.29 ± 7% perf-profile.children.cycles-pp.tick_sched_timer
1.70 ± 27% -0.6 1.14 ± 9% perf-profile.children.cycles-pp.tick_sched_handle
1.57 ± 29% -0.5 1.03 ± 10% perf-profile.children.cycles-pp.update_process_times
3.02 ± 8% -0.5 2.52 ± 10% perf-profile.children.cycles-pp.menu_select
1.19 ± 19% -0.3 0.89 ± 10% perf-profile.children.cycles-pp.tick_nohz_next_event
0.81 ± 25% -0.2 0.56 ± 11% perf-profile.children.cycles-pp.scheduler_tick
0.42 ± 19% -0.1 0.30 ± 14% perf-profile.children.cycles-pp._raw_spin_lock
0.27 ± 13% -0.1 0.21 ± 15% perf-profile.children.cycles-pp.hrtimer_next_event_without
0.11 ± 35% -0.0 0.07 ± 19% perf-profile.children.cycles-pp.run_local_timers
0.10 ± 15% -0.0 0.07 ± 28% perf-profile.children.cycles-pp.cpu_load_update
0.14 ± 9% -0.0 0.11 ± 15% perf-profile.children.cycles-pp.perf_event_task_tick
0.07 ± 17% +0.0 0.10 ± 12% perf-profile.children.cycles-pp.blk_flush_plug_list
0.07 ± 17% +0.0 0.10 ± 12% perf-profile.children.cycles-pp.blk_mq_flush_plug_list
0.06 ± 26% +0.0 0.11 ± 17% perf-profile.children.cycles-pp.read
0.07 ± 17% +0.0 0.11 ± 36% perf-profile.children.cycles-pp.deferred_split_scan
0.15 ± 14% +0.1 0.21 ± 13% perf-profile.children.cycles-pp.blk_mq_sched_dispatch_requests
0.15 ± 16% +0.1 0.21 ± 15% perf-profile.children.cycles-pp.blk_mq_dispatch_rq_list
0.15 ± 14% +0.1 0.22 ± 14% perf-profile.children.cycles-pp.__blk_mq_run_hw_queue
0.08 ± 23% +0.1 0.14 ± 34% perf-profile.children.cycles-pp.shrink_slab
0.08 ± 23% +0.1 0.14 ± 34% perf-profile.children.cycles-pp.do_shrink_slab
0.72 ± 19% +0.3 1.00 ± 8% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
0.44 ± 18% +0.3 0.74 ± 14% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
0.86 ± 18% +0.4 1.30 ± 9% perf-profile.children.cycles-pp.blk_mq_try_issue_directly
0.88 ± 18% +0.5 1.34 ± 9% perf-profile.children.cycles-pp.__blk_mq_try_issue_directly
0.82 ± 19% +0.5 1.30 ± 9% perf-profile.children.cycles-pp.dma_pool_alloc
1.02 ± 15% +0.5 1.55 ± 9% perf-profile.children.cycles-pp.nvme_queue_rq
1.07 ± 15% +0.7 1.76 ± 21% perf-profile.children.cycles-pp.__indirect_thunk_start
2.42 ± 16% +0.7 3.16 ± 13% perf-profile.children.cycles-pp.find_next_bit
0.95 ± 26% +1.1 2.00 ± 15% perf-profile.children.cycles-pp.blk_account_io_start
2.19 ± 17% +1.5 3.72 ± 8% perf-profile.children.cycles-pp.blk_mq_make_request
2.20 ± 17% +1.5 3.73 ± 8% perf-profile.children.cycles-pp.submit_bio
2.20 ± 17% +1.5 3.73 ± 8% perf-profile.children.cycles-pp.generic_make_request
2.21 ± 17% +1.5 3.76 ± 8% perf-profile.children.cycles-pp.__swap_writepage
2.23 ± 17% +1.5 3.77 ± 7% perf-profile.children.cycles-pp.pageout
3.60 ± 13% +1.6 5.22 ± 7% perf-profile.children.cycles-pp.__alloc_pages_nodemask
3.51 ± 15% +1.6 5.15 ± 6% perf-profile.children.cycles-pp.shrink_page_list
3.48 ± 12% +1.6 5.13 ± 6% perf-profile.children.cycles-pp.do_try_to_free_pages
3.53 ± 14% +1.6 5.17 ± 6% perf-profile.children.cycles-pp.shrink_inactive_list
3.49 ± 12% +1.6 5.13 ± 6% perf-profile.children.cycles-pp.try_to_free_pages
3.51 ± 12% +1.7 5.19 ± 6% perf-profile.children.cycles-pp.__alloc_pages_slowpath
3.61 ± 14% +1.7 5.30 ± 6% perf-profile.children.cycles-pp.shrink_node_memcg
3.69 ± 15% +1.8 5.45 ± 7% perf-profile.children.cycles-pp.shrink_node
4.10 ± 17% +2.4 6.47 ± 18% perf-profile.children.cycles-pp.blk_mq_check_inflight
10.64 ± 16% +6.8 17.39 ± 17% perf-profile.children.cycles-pp.bt_iter
13.17 ± 16% +7.4 20.59 ± 18% perf-profile.children.cycles-pp.blk_account_io_done
13.39 ± 16% +7.4 20.81 ± 19% perf-profile.children.cycles-pp.blk_mq_end_request
15.67 ± 17% +8.2 23.84 ± 20% perf-profile.children.cycles-pp.handle_irq
15.66 ± 17% +8.2 23.83 ± 20% perf-profile.children.cycles-pp.handle_edge_irq
15.57 ± 17% +8.2 23.73 ± 20% perf-profile.children.cycles-pp.nvme_irq
15.60 ± 17% +8.2 23.77 ± 20% perf-profile.children.cycles-pp.handle_irq_event
15.58 ± 17% +8.2 23.75 ± 20% perf-profile.children.cycles-pp.__handle_irq_event_percpu
15.59 ± 17% +8.2 23.77 ± 20% perf-profile.children.cycles-pp.handle_irq_event_percpu
15.75 ± 17% +8.2 23.93 ± 20% perf-profile.children.cycles-pp.ret_from_intr
15.73 ± 17% +8.2 23.91 ± 20% perf-profile.children.cycles-pp.do_IRQ
15.54 ± 17% +8.2 23.73 ± 19% perf-profile.children.cycles-pp.blk_mq_complete_request
14.07 ± 16% +8.4 22.45 ± 16% perf-profile.children.cycles-pp.part_round_stats
14.05 ± 16% +8.4 22.45 ± 16% perf-profile.children.cycles-pp.blk_mq_queue_tag_busy_iter
14.05 ± 16% +8.4 22.45 ± 16% perf-profile.children.cycles-pp.blk_mq_in_flight
0.38 ± 20% -0.1 0.28 ± 16% perf-profile.self.cycles-pp._raw_spin_lock
0.10 ± 13% -0.0 0.07 ± 17% perf-profile.self.cycles-pp.idle_cpu
0.12 ± 14% -0.0 0.09 ± 7% perf-profile.self.cycles-pp.perf_mux_hrtimer_handler
0.10 ± 15% -0.0 0.07 ± 28% perf-profile.self.cycles-pp.cpu_load_update
0.14 ± 9% -0.0 0.11 ± 15% perf-profile.self.cycles-pp.perf_event_task_tick
0.62 ± 16% +0.3 0.89 ± 12% perf-profile.self.cycles-pp.dma_pool_alloc
0.44 ± 18% +0.3 0.74 ± 14% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
0.81 ± 16% +0.5 1.32 ± 25% perf-profile.self.cycles-pp.__indirect_thunk_start
2.07 ± 16% +0.6 2.69 ± 12% perf-profile.self.cycles-pp.find_next_bit
1.77 ± 16% +1.1 2.91 ± 15% perf-profile.self.cycles-pp.blk_mq_queue_tag_busy_iter
3.82 ± 16% +2.2 6.00 ± 18% perf-profile.self.cycles-pp.blk_mq_check_inflight
6.43 ± 15% +4.1 10.56 ± 16% perf-profile.self.cycles-pp.bt_iter
vm-scalability.time.system_time
600 +-+-------------------------------------------------------------------+
| |
500 +-O OO |
O O OO |
| O O O O O O |
400 +-+ O O O O |
| |
300 +-+ .+.++. .+ .+ .+ .+.+ +.+ .++.+.++ .++.+.++. |
| ++ + :.+ + + + : +.+ : +.+ + .++.+ +.+ .|
200 +-+ + + : : : : + + |
|: : : : : |
|: :: : : |
100 +-+ :: :: |
| : : |
0 +-+-------------------------------------------------------------------+
vm-scalability.time.maximum_resident_set_size
2.5e+07 +-+---------------------------------------------------------------+
| |
| ++.++.++.+. +. +. + +.++.+ +.++.+ .+.++. .++. .++.+ .+ |
2e+07 +-+ + .+ + +.+: : : : + ++ + + +.|
| : + : : : : |
| : : : : : |
1.5e+07 O-+O OO: : : : |
|: O O O O : : : : |
1e+07 +-+ O O O O OO O : : : : |
|:O O :: :: |
|: :: :: |
5e+06 +-+ : : |
| : : |
| : : |
0 +-+---------------------------------------------------------------+
[*] 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
View attachment "config-4.19.0-12678-gac5b2c1" of type "text/plain" (168446 bytes)
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