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Message-ID: <20160413015427.GC659@yexl-desktop>
Date: Wed, 13 Apr 2016 09:54:27 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Hugh Dickins <hughd@...gle.com>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>,
"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
Yang Shi <yang.shi@...aro.org>, Ning Qu <quning@...il.com>,
David Rientjes <rientjes@...gle.com>,
LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [lkp] [huge tmpfs] d7c7d56ca6: vm-scalability.throughput -5.5%
regression
FYI, we noticed that vm-scalability.throughput -5.5% regression on
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit d7c7d56ca61aec18e5e0cb3a64e50073c42195f7 ("huge tmpfs: avoid premature exposure of new pagetable")
=========================================================================================
compiler/cpufreq_governor/kconfig/rootfs/runtime/tbox_group/test/testcase:
gcc-4.9/performance/x86_64-rhel/debian-x86_64-2015-02-07.cgz/300s/lkp-hsw01/lru-file-mmap-read-rand/vm-scalability
commit:
517348161d2725b8b596feb10c813bf596dc6a47
d7c7d56ca61aec18e5e0cb3a64e50073c42195f7
517348161d2725b8 d7c7d56ca61aec18e5e0cb3a64
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
1801726 ± 0% -5.5% 1702808 ± 0% vm-scalability.throughput
317.89 ± 0% +2.9% 327.15 ± 0% vm-scalability.time.elapsed_time
317.89 ± 0% +2.9% 327.15 ± 0% vm-scalability.time.elapsed_time.max
872240 ± 4% +8.5% 946467 ± 1% vm-scalability.time.involuntary_context_switches
6.73e+08 ± 0% -92.5% 50568722 ± 0% vm-scalability.time.major_page_faults
2109093 ± 9% -25.8% 1564815 ± 7% vm-scalability.time.maximum_resident_set_size
37881 ± 0% +586.9% 260194 ± 0% vm-scalability.time.minor_page_faults
5087 ± 0% +3.7% 5277 ± 0% vm-scalability.time.percent_of_cpu_this_job_got
16047 ± 0% +7.5% 17252 ± 0% vm-scalability.time.system_time
127.19 ± 0% -88.3% 14.93 ± 1% vm-scalability.time.user_time
72572 ± 7% +56.0% 113203 ± 3% cpuidle.C1-HSW.usage
9.879e+08 ± 4% -32.5% 6.67e+08 ± 8% cpuidle.C6-HSW.time
605545 ± 3% -12.9% 527295 ± 1% softirqs.RCU
164170 ± 7% +20.5% 197881 ± 6% softirqs.SCHED
2584429 ± 3% -25.5% 1925241 ± 2% vmstat.memory.free
252507 ± 0% +36.2% 343994 ± 0% vmstat.system.in
2.852e+08 ± 5% +163.9% 7.527e+08 ± 1% numa-numastat.node0.local_node
2.852e+08 ± 5% +163.9% 7.527e+08 ± 1% numa-numastat.node0.numa_hit
2.876e+08 ± 6% +162.8% 7.559e+08 ± 0% numa-numastat.node1.local_node
2.876e+08 ± 6% +162.8% 7.559e+08 ± 0% numa-numastat.node1.numa_hit
6.73e+08 ± 0% -92.5% 50568722 ± 0% time.major_page_faults
2109093 ± 9% -25.8% 1564815 ± 7% time.maximum_resident_set_size
37881 ± 0% +586.9% 260194 ± 0% time.minor_page_faults
127.19 ± 0% -88.3% 14.93 ± 1% time.user_time
94.37 ± 0% +2.0% 96.27 ± 0% turbostat.%Busy
2919 ± 0% +2.0% 2977 ± 0% turbostat.Avg_MHz
5.12 ± 4% -38.7% 3.14 ± 5% turbostat.CPU%c6
2.00 ± 13% -44.8% 1.10 ± 22% turbostat.Pkg%pc2
240.00 ± 0% +4.2% 250.14 ± 0% turbostat.PkgWatt
55.36 ± 3% +16.3% 64.40 ± 2% turbostat.RAMWatt
17609 ±103% -59.4% 7148 ± 72% latency_stats.avg.pipe_write.__vfs_write.vfs_write.SyS_write.entry_SYSCALL_64_fastpath
63966 ±152% -68.4% 20204 ± 64% latency_stats.max.pipe_read.__vfs_read.vfs_read.SyS_read.entry_SYSCALL_64_fastpath
299681 ±123% -89.7% 30889 ± 13% latency_stats.max.pipe_wait.pipe_read.__vfs_read.vfs_read.SyS_read.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 35893 ± 10% latency_stats.max.wait_on_page_bit_killable.__lock_page_or_retry.filemap_fault.__do_fault.do_fault.handle_mm_fault.__do_page_fault.do_page_fault.page_fault
90871 ±125% -56.2% 39835 ± 74% latency_stats.sum.pipe_read.__vfs_read.vfs_read.SyS_read.entry_SYSCALL_64_fastpath
61821 ± 22% -86.6% 8254 ± 62% latency_stats.sum.sigsuspend.SyS_rt_sigsuspend.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 59392 ±118% latency_stats.sum.throttle_direct_reclaim.try_to_free_pages.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc.__do_page_cache_readahead.filemap_fault.xfs_filemap_fault.__do_fault.do_fault.handle_mm_fault.__do_page_fault
0.00 ± -1% +Inf% 1549096 ± 24% latency_stats.sum.wait_on_page_bit_killable.__lock_page_or_retry.filemap_fault.__do_fault.do_fault.handle_mm_fault.__do_page_fault.do_page_fault.page_fault
639.30 ± 8% -38.8% 391.40 ± 6% slabinfo.RAW.active_objs
639.30 ± 8% -38.8% 391.40 ± 6% slabinfo.RAW.num_objs
555.90 ± 14% -50.7% 274.10 ± 36% slabinfo.nfs_commit_data.active_objs
555.90 ± 14% -50.7% 274.10 ± 36% slabinfo.nfs_commit_data.num_objs
10651978 ± 0% -80.0% 2126718 ± 0% slabinfo.radix_tree_node.active_objs
218915 ± 0% -81.9% 39535 ± 0% slabinfo.radix_tree_node.active_slabs
12259274 ± 0% -81.9% 2213762 ± 0% slabinfo.radix_tree_node.num_objs
218915 ± 0% -81.9% 39535 ± 0% slabinfo.radix_tree_node.num_slabs
8503640 ± 1% -87.8% 1038681 ± 0% meminfo.Active
8155208 ± 1% -91.5% 692744 ± 0% meminfo.Active(file)
47732497 ± 0% +13.9% 54365008 ± 0% meminfo.Cached
38794624 ± 0% +36.4% 52899738 ± 0% meminfo.Inactive
38748440 ± 0% +36.4% 52853183 ± 0% meminfo.Inactive(file)
45315491 ± 0% -24.0% 34459599 ± 0% meminfo.Mapped
2693407 ± 5% -30.7% 1867438 ± 3% meminfo.MemFree
7048370 ± 0% -81.5% 1303216 ± 0% meminfo.SReclaimable
7145508 ± 0% -80.4% 1400313 ± 0% meminfo.Slab
4168849 ± 2% -88.1% 496040 ± 27% numa-meminfo.node0.Active
3987391 ± 1% -91.3% 346768 ± 0% numa-meminfo.node0.Active(file)
23809283 ± 0% +13.8% 27087077 ± 0% numa-meminfo.node0.FilePages
19423374 ± 0% +35.8% 26379857 ± 0% numa-meminfo.node0.Inactive
19402281 ± 0% +35.8% 26356354 ± 0% numa-meminfo.node0.Inactive(file)
22594121 ± 0% -24.1% 17153129 ± 0% numa-meminfo.node0.Mapped
1430871 ± 5% -31.2% 984861 ± 2% numa-meminfo.node0.MemFree
3457483 ± 1% -81.4% 642147 ± 0% numa-meminfo.node0.SReclaimable
3507005 ± 1% -80.3% 692577 ± 0% numa-meminfo.node0.Slab
4349443 ± 3% -87.5% 543711 ± 24% numa-meminfo.node1.Active
4181422 ± 3% -91.7% 346861 ± 1% numa-meminfo.node1.Active(file)
23896184 ± 0% +14.2% 27287954 ± 0% numa-meminfo.node1.FilePages
19329324 ± 0% +37.2% 26528591 ± 0% numa-meminfo.node1.Inactive
19304364 ± 0% +37.3% 26505692 ± 0% numa-meminfo.node1.Inactive(file)
22671758 ± 0% -23.7% 17303673 ± 0% numa-meminfo.node1.Mapped
1299430 ± 7% -32.8% 873435 ± 6% numa-meminfo.node1.MemFree
3589265 ± 1% -81.6% 661650 ± 0% numa-meminfo.node1.SReclaimable
3636880 ± 1% -80.5% 708315 ± 0% numa-meminfo.node1.Slab
994864 ± 1% -91.3% 86711 ± 0% numa-vmstat.node0.nr_active_file
5952715 ± 0% +13.8% 6773427 ± 0% numa-vmstat.node0.nr_file_pages
356982 ± 5% -31.5% 244513 ± 3% numa-vmstat.node0.nr_free_pages
4853127 ± 0% +35.8% 6590709 ± 0% numa-vmstat.node0.nr_inactive_file
394.70 ± 15% -62.9% 146.60 ± 32% numa-vmstat.node0.nr_isolated_file
5649360 ± 0% -24.1% 4288873 ± 0% numa-vmstat.node0.nr_mapped
28030 ± 53% -97.7% 648.30 ± 10% numa-vmstat.node0.nr_pages_scanned
864516 ± 1% -81.4% 160512 ± 0% numa-vmstat.node0.nr_slab_reclaimable
1.522e+08 ± 4% +155.9% 3.893e+08 ± 1% numa-vmstat.node0.numa_hit
1.521e+08 ± 4% +155.9% 3.893e+08 ± 1% numa-vmstat.node0.numa_local
217926 ± 3% -84.4% 33949 ± 2% numa-vmstat.node0.workingset_activate
60138428 ± 2% -72.5% 16533446 ± 0% numa-vmstat.node0.workingset_nodereclaim
4367580 ± 3% +158.4% 11285489 ± 1% numa-vmstat.node0.workingset_refault
1043245 ± 3% -91.7% 86749 ± 1% numa-vmstat.node1.nr_active_file
5974941 ± 0% +14.2% 6823255 ± 0% numa-vmstat.node1.nr_file_pages
323798 ± 7% -33.0% 216945 ± 5% numa-vmstat.node1.nr_free_pages
4829122 ± 1% +37.2% 6627644 ± 0% numa-vmstat.node1.nr_inactive_file
395.80 ± 8% -68.5% 124.80 ± 46% numa-vmstat.node1.nr_isolated_file
5669082 ± 0% -23.7% 4326551 ± 0% numa-vmstat.node1.nr_mapped
32004 ± 60% -99.9% 47.00 ± 9% numa-vmstat.node1.nr_pages_scanned
897351 ± 1% -81.6% 165406 ± 0% numa-vmstat.node1.nr_slab_reclaimable
1.535e+08 ± 4% +154.6% 3.909e+08 ± 0% numa-vmstat.node1.numa_hit
1.535e+08 ± 4% +154.7% 3.909e+08 ± 0% numa-vmstat.node1.numa_local
235134 ± 5% -85.7% 33507 ± 2% numa-vmstat.node1.workingset_activate
59647268 ± 1% -72.1% 16626347 ± 0% numa-vmstat.node1.workingset_nodereclaim
4535102 ± 4% +151.1% 11389137 ± 0% numa-vmstat.node1.workingset_refault
347641 ± 13% +97.0% 684832 ± 0% proc-vmstat.allocstall
7738 ± 9% +236.5% 26042 ± 0% proc-vmstat.kswapd_low_wmark_hit_quickly
2041367 ± 1% -91.5% 173206 ± 0% proc-vmstat.nr_active_file
1233230 ± 0% +11.7% 1378011 ± 0% proc-vmstat.nr_dirty_background_threshold
2466460 ± 0% +11.7% 2756024 ± 0% proc-vmstat.nr_dirty_threshold
11933740 ± 0% +13.9% 13594909 ± 0% proc-vmstat.nr_file_pages
671934 ± 5% -31.1% 463093 ± 3% proc-vmstat.nr_free_pages
9685062 ± 0% +36.5% 13216819 ± 0% proc-vmstat.nr_inactive_file
792.80 ± 10% -67.9% 254.20 ± 34% proc-vmstat.nr_isolated_file
11327952 ± 0% -23.9% 8616859 ± 0% proc-vmstat.nr_mapped
73994 ± 51% -99.1% 657.00 ± 7% proc-vmstat.nr_pages_scanned
1762423 ± 0% -81.5% 325807 ± 0% proc-vmstat.nr_slab_reclaimable
72.30 ± 23% +852.4% 688.60 ± 58% proc-vmstat.nr_vmscan_immediate_reclaim
5392 ± 2% -11.9% 4750 ± 2% proc-vmstat.numa_hint_faults
5.728e+08 ± 5% +163.4% 1.509e+09 ± 0% proc-vmstat.numa_hit
5.728e+08 ± 5% +163.4% 1.509e+09 ± 0% proc-vmstat.numa_local
5638 ± 4% -12.5% 4935 ± 3% proc-vmstat.numa_pte_updates
8684 ± 8% +215.8% 27427 ± 0% proc-vmstat.pageoutrun
3220941 ± 0% -90.2% 315751 ± 0% proc-vmstat.pgactivate
17739240 ± 1% +143.6% 43217427 ± 0% proc-vmstat.pgalloc_dma32
6.6e+08 ± 0% +138.1% 1.572e+09 ± 0% proc-vmstat.pgalloc_normal
6.737e+08 ± 0% -92.4% 51517407 ± 0% proc-vmstat.pgfault
6.767e+08 ± 0% +138.5% 1.614e+09 ± 0% proc-vmstat.pgfree
6.73e+08 ± 0% -92.5% 50568722 ± 0% proc-vmstat.pgmajfault
31567471 ± 1% +91.6% 60472288 ± 0% proc-vmstat.pgscan_direct_dma32
1.192e+09 ± 2% +84.5% 2.199e+09 ± 0% proc-vmstat.pgscan_direct_normal
16309661 ± 0% +150.4% 40841573 ± 0% proc-vmstat.pgsteal_direct_dma32
6.151e+08 ± 0% +140.8% 1.481e+09 ± 0% proc-vmstat.pgsteal_direct_normal
939746 ± 18% +101.3% 1891322 ± 6% proc-vmstat.pgsteal_kswapd_dma32
27432476 ± 4% +162.4% 71970660 ± 2% proc-vmstat.pgsteal_kswapd_normal
4.802e+08 ± 5% -81.5% 88655347 ± 0% proc-vmstat.slabs_scanned
452671 ± 2% -85.1% 67360 ± 1% proc-vmstat.workingset_activate
1.198e+08 ± 1% -72.4% 33135682 ± 0% proc-vmstat.workingset_nodereclaim
8898128 ± 1% +154.6% 22657102 ± 0% proc-vmstat.workingset_refault
613962 ± 12% -18.6% 499880 ± 9% sched_debug.cfs_rq:/.min_vruntime.stddev
31.47 ± 38% +203.5% 95.52 ± 29% sched_debug.cfs_rq:/.nr_spread_over.max
6.19 ± 32% +150.9% 15.53 ± 24% sched_debug.cfs_rq:/.nr_spread_over.stddev
41.71 ± 51% -42.3% 24.07 ± 12% sched_debug.cfs_rq:/.runnable_load_avg.avg
1094 ±106% -60.9% 427.95 ± 25% sched_debug.cfs_rq:/.runnable_load_avg.max
163.22 ± 92% -63.2% 60.09 ± 28% sched_debug.cfs_rq:/.runnable_load_avg.stddev
613932 ± 12% -18.6% 499833 ± 9% sched_debug.cfs_rq:/.spread0.stddev
35.20 ± 8% -29.1% 24.97 ± 11% sched_debug.cpu.cpu_load[0].avg
731.80 ± 11% -36.1% 467.45 ± 21% sched_debug.cpu.cpu_load[0].max
116.23 ± 10% -43.5% 65.72 ± 23% sched_debug.cpu.cpu_load[0].stddev
35.25 ± 8% -25.6% 26.23 ± 10% sched_debug.cpu.cpu_load[1].avg
722.47 ± 10% -30.2% 504.05 ± 18% sched_debug.cpu.cpu_load[1].max
115.25 ± 10% -38.5% 70.82 ± 19% sched_debug.cpu.cpu_load[1].stddev
35.37 ± 8% -22.4% 27.45 ± 8% sched_debug.cpu.cpu_load[2].avg
721.90 ± 9% -27.7% 521.60 ± 16% sched_debug.cpu.cpu_load[2].max
10.85 ± 14% +16.9% 12.68 ± 6% sched_debug.cpu.cpu_load[2].min
114.93 ± 9% -35.1% 74.62 ± 16% sched_debug.cpu.cpu_load[2].stddev
35.20 ± 8% -21.3% 27.70 ± 5% sched_debug.cpu.cpu_load[3].avg
705.73 ± 9% -29.6% 496.57 ± 13% sched_debug.cpu.cpu_load[3].max
10.95 ± 13% +18.7% 13.00 ± 4% sched_debug.cpu.cpu_load[3].min
112.58 ± 9% -34.8% 73.35 ± 12% sched_debug.cpu.cpu_load[3].stddev
34.96 ± 8% -21.7% 27.39 ± 5% sched_debug.cpu.cpu_load[4].avg
684.63 ± 10% -32.0% 465.83 ± 11% sched_debug.cpu.cpu_load[4].max
11.10 ± 12% +17.7% 13.07 ± 3% sched_debug.cpu.cpu_load[4].min
110.03 ± 9% -36.1% 70.28 ± 10% sched_debug.cpu.cpu_load[4].stddev
293.58 ± 28% +110.8% 618.85 ± 32% sched_debug.cpu.curr->pid.min
18739 ± 3% +10.5% 20713 ± 1% sched_debug.cpu.nr_switches.avg
33332 ± 10% +21.0% 40337 ± 6% sched_debug.cpu.nr_switches.max
4343 ± 10% +34.8% 5852 ± 8% sched_debug.cpu.nr_switches.stddev
19363 ± 3% +9.2% 21136 ± 1% sched_debug.cpu.sched_count.avg
20.35 ± 17% -31.5% 13.93 ± 22% sched_debug.cpu.sched_goidle.min
9245 ± 3% +12.5% 10398 ± 0% sched_debug.cpu.ttwu_count.avg
16837 ± 10% +27.0% 21390 ± 8% sched_debug.cpu.ttwu_count.max
2254 ± 8% +39.5% 3143 ± 8% sched_debug.cpu.ttwu_count.stddev
8052 ± 4% +16.2% 9353 ± 0% sched_debug.cpu.ttwu_local.avg
5846 ± 4% +11.0% 6491 ± 2% sched_debug.cpu.ttwu_local.min
1847 ± 11% +39.8% 2582 ± 8% sched_debug.cpu.ttwu_local.stddev
3.66 ± 4% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__add_to_page_cache_locked.add_to_page_cache_lru.filemap_fault.xfs_filemap_fault.__do_fault
0.00 ± -1% +Inf% 1.12 ± 0% perf-profile.cycles-pp.__add_to_page_cache_locked.add_to_page_cache_lru.mpage_readpages.xfs_vm_readpages.__do_page_cache_readahead
0.00 ± -1% +Inf% 77.72 ± 0% perf-profile.cycles-pp.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc.__do_page_cache_readahead.filemap_fault
79.28 ± 0% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc.filemap_fault.xfs_filemap_fault
11.43 ± 5% -89.4% 1.21 ± 4% perf-profile.cycles-pp.__delete_from_page_cache.__remove_mapping.shrink_page_list.shrink_inactive_list.shrink_zone_memcg
0.00 ± -1% +Inf% 96.93 ± 0% perf-profile.cycles-pp.__do_fault.do_fault.handle_mm_fault.__do_page_fault.do_page_fault
91.04 ± 0% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__do_fault.handle_pte_fault.handle_mm_fault.__do_page_fault.do_page_fault
0.00 ± -1% +Inf% 96.66 ± 0% perf-profile.cycles-pp.__do_page_cache_readahead.filemap_fault.xfs_filemap_fault.__do_fault.do_fault
29.86 ± 3% -96.9% 0.92 ± 19% perf-profile.cycles-pp.__list_lru_walk_one.isra.3.list_lru_walk_one.scan_shadow_nodes.shrink_slab.shrink_zone
1.59 ± 14% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__lru_cache_add.lru_cache_add.add_to_page_cache_lru.filemap_fault.xfs_filemap_fault
0.00 ± -1% +Inf% 5.67 ± 5% perf-profile.cycles-pp.__lru_cache_add.lru_cache_add.add_to_page_cache_lru.mpage_readpages.xfs_vm_readpages
0.00 ± -1% +Inf% 78.11 ± 0% perf-profile.cycles-pp.__page_cache_alloc.__do_page_cache_readahead.filemap_fault.xfs_filemap_fault.__do_fault
79.40 ± 0% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__page_cache_alloc.filemap_fault.xfs_filemap_fault.__do_fault.handle_pte_fault
1.28 ± 4% -38.7% 0.78 ± 1% perf-profile.cycles-pp.__radix_tree_lookup.__delete_from_page_cache.__remove_mapping.shrink_page_list.shrink_inactive_list
25.30 ± 6% -84.2% 3.99 ± 5% perf-profile.cycles-pp.__remove_mapping.shrink_page_list.shrink_inactive_list.shrink_zone_memcg.shrink_zone
0.56 ± 0% +98.2% 1.11 ± 0% perf-profile.cycles-pp.__rmqueue.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc
0.00 ± -1% +Inf% 1.11 ± 0% perf-profile.cycles-pp.__xfs_get_blocks.xfs_get_blocks.do_mpage_readpage.mpage_readpages.xfs_vm_readpages
0.01 ±133% +30254.3% 2.66 ± 8% perf-profile.cycles-pp._raw_spin_lock.free_pcppages_bulk.free_hot_cold_page.free_hot_cold_page_list.shrink_page_list
5.07 ± 25% +268.7% 18.71 ± 3% perf-profile.cycles-pp._raw_spin_lock.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc
9.16 ± 6% -100.0% 0.00 ± -1% perf-profile.cycles-pp._raw_spin_lock.list_lru_add.__delete_from_page_cache.__remove_mapping.shrink_page_list
0.69 ± 64% -100.0% 0.00 ± -1% perf-profile.cycles-pp._raw_spin_lock.list_lru_del.__add_to_page_cache_locked.add_to_page_cache_lru.filemap_fault
27.69 ± 3% -100.0% 0.00 ± -1% perf-profile.cycles-pp._raw_spin_lock.shadow_lru_isolate.__list_lru_walk_one.list_lru_walk_one.scan_shadow_nodes
10.77 ± 10% +238.5% 36.45 ± 1% perf-profile.cycles-pp._raw_spin_lock_irq.shrink_inactive_list.shrink_zone_memcg.shrink_zone.do_try_to_free_pages
0.35 ± 9% +193.4% 1.02 ± 13% perf-profile.cycles-pp._raw_spin_lock_irq.shrink_inactive_list.shrink_zone_memcg.shrink_zone.kswapd
12.86 ± 9% -89.4% 1.36 ± 17% perf-profile.cycles-pp._raw_spin_lock_irqsave.__remove_mapping.shrink_page_list.shrink_inactive_list.shrink_zone_memcg
1.11 ± 18% +333.5% 4.83 ± 6% perf-profile.cycles-pp._raw_spin_lock_irqsave.pagevec_lru_move_fn.__lru_cache_add.lru_cache_add.add_to_page_cache_lru
5.38 ± 5% -100.0% 0.00 ± -1% perf-profile.cycles-pp.add_to_page_cache_lru.filemap_fault.xfs_filemap_fault.__do_fault.handle_pte_fault
0.00 ± -1% +Inf% 7.15 ± 4% perf-profile.cycles-pp.add_to_page_cache_lru.mpage_readpages.xfs_vm_readpages.__do_page_cache_readahead.filemap_fault
0.00 ± -1% +Inf% 78.06 ± 0% perf-profile.cycles-pp.alloc_pages_current.__page_cache_alloc.__do_page_cache_readahead.filemap_fault.xfs_filemap_fault
79.38 ± 0% -100.0% 0.00 ± -1% perf-profile.cycles-pp.alloc_pages_current.__page_cache_alloc.filemap_fault.xfs_filemap_fault.__do_fault
0.00 ± -1% +Inf% 97.32 ± 0% perf-profile.cycles-pp.do_fault.handle_mm_fault.__do_page_fault.do_page_fault.page_fault
5.19 ± 2% -100.0% 0.00 ± -1% perf-profile.cycles-pp.do_mpage_readpage.mpage_readpage.xfs_vm_readpage.filemap_fault.xfs_filemap_fault
0.00 ± -1% +Inf% 10.68 ± 1% perf-profile.cycles-pp.do_mpage_readpage.mpage_readpages.xfs_vm_readpages.__do_page_cache_readahead.filemap_fault
0.72 ± 67% -98.3% 0.01 ± 87% perf-profile.cycles-pp.do_syscall_64.return_from_SYSCALL_64.__libc_fork
72.75 ± 1% -23.2% 55.88 ± 1% perf-profile.cycles-pp.do_try_to_free_pages.try_to_free_pages.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc
0.00 ± -1% +Inf% 96.86 ± 0% perf-profile.cycles-pp.filemap_fault.xfs_filemap_fault.__do_fault.do_fault.handle_mm_fault
90.80 ± 0% -100.0% 0.00 ± -1% perf-profile.cycles-pp.filemap_fault.xfs_filemap_fault.__do_fault.handle_pte_fault.handle_mm_fault
2.39 ± 3% -100.0% 0.00 ± -1% perf-profile.cycles-pp.filemap_map_pages.handle_pte_fault.handle_mm_fault.__do_page_fault.do_page_fault
0.97 ± 12% +321.3% 4.07 ± 6% perf-profile.cycles-pp.free_hot_cold_page.free_hot_cold_page_list.shrink_page_list.shrink_inactive_list.shrink_zone_memcg
1.03 ± 9% +303.4% 4.17 ± 5% perf-profile.cycles-pp.free_hot_cold_page_list.shrink_page_list.shrink_inactive_list.shrink_zone_memcg.shrink_zone
0.65 ± 23% +451.9% 3.58 ± 6% perf-profile.cycles-pp.free_pcppages_bulk.free_hot_cold_page.free_hot_cold_page_list.shrink_page_list.shrink_inactive_list
0.00 ± -1% +Inf% 21.18 ± 2% perf-profile.cycles-pp.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc.__do_page_cache_readahead
6.22 ± 21% -100.0% 0.00 ± -1% perf-profile.cycles-pp.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc.filemap_fault
94.07 ± 0% -100.0% 0.00 ± -1% perf-profile.cycles-pp.handle_pte_fault.handle_mm_fault.__do_page_fault.do_page_fault.page_fault
0.57 ± 1% +104.6% 1.16 ± 2% perf-profile.cycles-pp.isolate_lru_pages.isra.47.shrink_inactive_list.shrink_zone_memcg.shrink_zone.do_try_to_free_pages
2.96 ± 7% -30.5% 2.05 ± 9% perf-profile.cycles-pp.kthread.ret_from_fork
9.58 ± 6% -100.0% 0.00 ±229% perf-profile.cycles-pp.list_lru_add.__delete_from_page_cache.__remove_mapping.shrink_page_list.shrink_inactive_list
1.88 ± 6% -100.0% 0.00 ± -1% perf-profile.cycles-pp.list_lru_del.__add_to_page_cache_locked.add_to_page_cache_lru.filemap_fault.xfs_filemap_fault
29.08 ± 3% -97.0% 0.89 ± 19% perf-profile.cycles-pp.list_lru_walk_one.scan_shadow_nodes.shrink_slab.shrink_zone.do_try_to_free_pages
1.59 ± 14% -100.0% 0.00 ± -1% perf-profile.cycles-pp.lru_cache_add.add_to_page_cache_lru.filemap_fault.xfs_filemap_fault.__do_fault
0.00 ± -1% +Inf% 5.68 ± 5% perf-profile.cycles-pp.lru_cache_add.add_to_page_cache_lru.mpage_readpages.xfs_vm_readpages.__do_page_cache_readahead
5.24 ± 2% -100.0% 0.00 ± -1% perf-profile.cycles-pp.mpage_readpage.xfs_vm_readpage.filemap_fault.xfs_filemap_fault.__do_fault
0.00 ± -1% +Inf% 18.20 ± 1% perf-profile.cycles-pp.mpage_readpages.xfs_vm_readpages.__do_page_cache_readahead.filemap_fault.xfs_filemap_fault
2.37 ± 14% +79.9% 4.27 ± 13% perf-profile.cycles-pp.native_flush_tlb_others.try_to_unmap_flush.shrink_page_list.shrink_inactive_list.shrink_zone_memcg
0.01 ±133% +30322.9% 2.66 ± 8% perf-profile.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.free_pcppages_bulk.free_hot_cold_page.free_hot_cold_page_list
5.07 ± 25% +268.8% 18.71 ± 3% perf-profile.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_current
9.16 ± 6% -100.0% 0.00 ± -1% perf-profile.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.list_lru_add.__delete_from_page_cache.__remove_mapping
0.75 ± 57% -100.0% 0.00 ± -1% perf-profile.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.list_lru_del.__add_to_page_cache_locked.add_to_page_cache_lru
27.68 ± 3% -100.0% 0.00 ± -1% perf-profile.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.shadow_lru_isolate.__list_lru_walk_one.list_lru_walk_one
11.09 ± 10% +237.5% 37.44 ± 0% perf-profile.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.shrink_inactive_list.shrink_zone_memcg.shrink_zone
12.76 ± 9% -90.9% 1.17 ± 22% perf-profile.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__remove_mapping.shrink_page_list.shrink_inactive_list
1.08 ± 19% +338.2% 4.75 ± 7% perf-profile.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.pagevec_lru_move_fn.__lru_cache_add.lru_cache_add
1.81 ± 2% -73.7% 0.48 ± 1% perf-profile.cycles-pp.page_check_address_transhuge.page_referenced_one.rmap_walk_file.rmap_walk.page_referenced
3.24 ± 1% -42.5% 1.87 ± 2% perf-profile.cycles-pp.page_referenced.shrink_page_list.shrink_inactive_list.shrink_zone_memcg.shrink_zone
2.20 ± 2% -66.0% 0.75 ± 5% perf-profile.cycles-pp.page_referenced_one.rmap_walk_file.rmap_walk.page_referenced.shrink_page_list
1.54 ± 14% -100.0% 0.00 ± -1% perf-profile.cycles-pp.pagevec_lru_move_fn.__lru_cache_add.lru_cache_add.add_to_page_cache_lru.filemap_fault
0.00 ± -1% +Inf% 5.57 ± 5% perf-profile.cycles-pp.pagevec_lru_move_fn.__lru_cache_add.lru_cache_add.add_to_page_cache_lru.mpage_readpages
2.07 ± 4% -100.0% 0.00 ± -1% perf-profile.cycles-pp.radix_tree_next_chunk.filemap_map_pages.handle_pte_fault.handle_mm_fault.__do_page_fault
3.01 ± 6% -31.7% 2.05 ± 9% perf-profile.cycles-pp.ret_from_fork
0.72 ± 67% -98.5% 0.01 ± 94% perf-profile.cycles-pp.return_from_SYSCALL_64.__libc_fork
3.15 ± 1% -46.0% 1.70 ± 1% perf-profile.cycles-pp.rmap_walk.page_referenced.shrink_page_list.shrink_inactive_list.shrink_zone_memcg
3.02 ± 2% -48.4% 1.56 ± 1% perf-profile.cycles-pp.rmap_walk_file.rmap_walk.page_referenced.shrink_page_list.shrink_inactive_list
29.08 ± 3% -97.0% 0.89 ± 19% perf-profile.cycles-pp.scan_shadow_nodes.shrink_slab.shrink_zone.do_try_to_free_pages.try_to_free_pages
28.89 ± 3% -97.1% 0.84 ± 22% perf-profile.cycles-pp.shadow_lru_isolate.__list_lru_walk_one.list_lru_walk_one.scan_shadow_nodes.shrink_slab
44.93 ± 4% +21.9% 54.77 ± 1% perf-profile.cycles-pp.shrink_inactive_list.shrink_zone_memcg.shrink_zone.do_try_to_free_pages.try_to_free_pages
33.07 ± 4% -50.8% 16.28 ± 3% perf-profile.cycles-pp.shrink_page_list.shrink_inactive_list.shrink_zone_memcg.shrink_zone.do_try_to_free_pages
1.11 ± 16% -22.6% 0.86 ± 6% perf-profile.cycles-pp.shrink_page_list.shrink_inactive_list.shrink_zone_memcg.shrink_zone.kswapd
29.15 ± 3% -96.8% 0.94 ± 16% perf-profile.cycles-pp.shrink_slab.shrink_zone.do_try_to_free_pages.try_to_free_pages.__alloc_pages_nodemask
73.07 ± 1% -23.5% 55.91 ± 1% perf-profile.cycles-pp.shrink_zone.do_try_to_free_pages.try_to_free_pages.__alloc_pages_nodemask.alloc_pages_current
45.01 ± 4% +22.1% 54.95 ± 1% perf-profile.cycles-pp.shrink_zone_memcg.shrink_zone.do_try_to_free_pages.try_to_free_pages.__alloc_pages_nodemask
2.35 ± 14% +78.9% 4.21 ± 13% perf-profile.cycles-pp.smp_call_function_many.native_flush_tlb_others.try_to_unmap_flush.shrink_page_list.shrink_inactive_list
0.00 ± -1% +Inf% 55.91 ± 1% perf-profile.cycles-pp.try_to_free_pages.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc.__do_page_cache_readahead
72.76 ± 1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.try_to_free_pages.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc.filemap_fault
2.38 ± 14% +79.5% 4.28 ± 13% perf-profile.cycles-pp.try_to_unmap_flush.shrink_page_list.shrink_inactive_list.shrink_zone_memcg.shrink_zone
0.58 ± 1% +51.9% 0.88 ± 14% perf-profile.cycles-pp.workingset_eviction.__remove_mapping.shrink_page_list.shrink_inactive_list.shrink_zone_memcg
0.00 ± -1% +Inf% 96.89 ± 0% perf-profile.cycles-pp.xfs_filemap_fault.__do_fault.do_fault.handle_mm_fault.__do_page_fault
91.02 ± 0% -100.0% 0.00 ± -1% perf-profile.cycles-pp.xfs_filemap_fault.__do_fault.handle_pte_fault.handle_mm_fault.__do_page_fault
0.00 ± -1% +Inf% 1.11 ± 0% perf-profile.cycles-pp.xfs_get_blocks.do_mpage_readpage.mpage_readpages.xfs_vm_readpages.__do_page_cache_readahead
5.26 ± 2% -100.0% 0.00 ± -1% perf-profile.cycles-pp.xfs_vm_readpage.filemap_fault.xfs_filemap_fault.__do_fault.handle_pte_fault
0.00 ± -1% +Inf% 18.21 ± 1% perf-profile.cycles-pp.xfs_vm_readpages.__do_page_cache_readahead.filemap_fault.xfs_filemap_fault.__do_fault
lkp-hsw01: Grantley Haswell-EP
Memory: 64G
vm-scalability.time.user_time
140 ++--------------------------------------------------------------------+
|******* ****** *************************************** **** ****** ***
120 *+ * * * * * * * * |
| |
100 ++ |
| |
80 ++ |
| |
60 ++ |
| |
40 ++ |
| |
20 OOOO O O OOO O OO OO OO |
| O OOOOOO OOO O OOOO OO OO |
0 ++--------------------------------------------------------------------+
vm-scalability.time.major_page_faults
7e+08 ++*-***-----*-----**--*-----*---****-*--*-***------------*---***--*-+
** * * ***** ****** ** ********* * **** * ***************** ******
6e+08 ++ |
| |
5e+08 ++ |
| |
4e+08 ++ |
| |
3e+08 ++ |
| |
2e+08 ++ |
| |
1e+08 ++ |
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO |
0 ++------------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
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,
Xiaolong Ye
View attachment "job.yaml" of type "text/plain" (3469 bytes)
View attachment "reproduce" of type "text/plain" (20848 bytes)
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