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Message-ID: <20190513055544.GJ31424@shao2-debian>
Date: Mon, 13 May 2019 13:55:44 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Hugh Dickins <hughd@...gle.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
"Alex Xu (Hello71)" <alex_y_xu@...oo.ca>,
Huang Ying <ying.huang@...el.com>,
Kelley Nielsen <kelleynnn@...il.com>,
Konstantin Khlebnikov <khlebnikov@...dex-team.ru>,
Rik van Riel <riel@...riel.com>,
Vineeth Pillai <vpillai@...italocean.com>,
Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [mm] af53d3e9e0: vm-scalability.median 12.5% improvement
Greeting,
FYI, we noticed a 12.5% improvement of vm-scalability.median due to commit:
commit: af53d3e9e04024885de5b4fda51e5fa362ae2bd8 ("mm: swapoff: shmem_unuse() stop eviction without igrab()")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: vm-scalability
on test machine: 88 threads Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz with 128G memory
with following parameters:
runtime: 300s
test: small-allocs
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/rootfs/runtime/tbox_group/test/testcase:
gcc-7/performance/x86_64-rhel-7.6/debian-x86_64-2018-04-03.cgz/300s/lkp-bdw-ep2/small-allocs/vm-scalability
commit:
64165b1aff ("mm: swapoff: take notice of completion sooner")
af53d3e9e0 ("mm: swapoff: shmem_unuse() stop eviction without igrab()")
64165b1affc5bc16 af53d3e9e04024885de5b4fda51
---------------- ---------------------------
fail:runs %reproduction fail:runs
| | |
1:4 -25% :4 dmesg.WARNING:at_ip___perf_sw_event/0x
1:4 6% 1:4 perf-profile.children.cycles-pp.error_entry
1:4 5% 1:4 perf-profile.self.cycles-pp.error_entry
%stddev %change %stddev
\ | \
192772 +12.5% 216822 vm-scalability.median
16968696 +12.5% 19084289 vm-scalability.throughput
343.22 -8.5% 314.03 vm-scalability.time.elapsed_time
343.22 -8.5% 314.03 vm-scalability.time.elapsed_time.max
47020 ± 2% -5.5% 44434 vm-scalability.time.involuntary_context_switches
26179 -8.7% 23908 ± 2% vm-scalability.time.system_time
2.83 ± 3% -18.0% 2.32 ± 13% turbostat.CPU%c1
34401 ± 4% +16.4% 40057 ± 7% vmstat.system.cs
74998 -1.3% 74052 proc-vmstat.nr_active_anon
313.67 ±116% -82.6% 54.67 proc-vmstat.nr_dirtied
332.33 ± 4% -5.2% 315.00 proc-vmstat.nr_inactive_file
32972 ± 2% -3.6% 31772 proc-vmstat.nr_shmem
74998 -1.3% 74052 proc-vmstat.nr_zone_active_anon
332.33 ± 4% -5.2% 315.00 proc-vmstat.nr_zone_inactive_file
5135 ± 13% -20.4% 4087 ± 5% proc-vmstat.numa_hint_faults
22938 ± 32% -55.2% 10283 ± 87% proc-vmstat.numa_pages_migrated
100642 ± 5% -12.4% 88212 ± 7% proc-vmstat.numa_pte_updates
22938 ± 32% -55.2% 10283 ± 87% proc-vmstat.pgmigrate_success
2211 ± 6% -11.3% 1962 ± 3% slabinfo.avc_xperms_data.active_objs
2211 ± 6% -11.3% 1962 ± 3% slabinfo.avc_xperms_data.num_objs
2982 ± 4% +22.6% 3657 ± 8% slabinfo.eventpoll_pwq.active_objs
2982 ± 4% +22.6% 3657 ± 8% slabinfo.eventpoll_pwq.num_objs
832.33 ± 5% -18.9% 675.00 ± 6% slabinfo.file_lock_cache.active_objs
832.33 ± 5% -18.9% 675.00 ± 6% slabinfo.file_lock_cache.num_objs
357.67 ± 13% +21.9% 436.00 ± 11% slabinfo.kernfs_iattrs_cache.active_objs
357.67 ± 13% +21.9% 436.00 ± 11% slabinfo.kernfs_iattrs_cache.num_objs
657.00 ± 10% +84.7% 1213 ± 25% slabinfo.mnt_cache.active_objs
657.00 ± 10% +84.7% 1213 ± 25% slabinfo.mnt_cache.num_objs
1083 ± 9% +50.2% 1628 ± 17% slabinfo.pool_workqueue.active_objs
1084 ± 9% +50.2% 1628 ± 17% slabinfo.pool_workqueue.num_objs
82049 ± 97% -73.0% 22126 ± 3% sched_debug.cfs_rq:/.load.max
20.68 ± 14% -15.9% 17.39 ± 10% sched_debug.cfs_rq:/.load_avg.avg
2.39 ± 51% -55.7% 1.06 ± 57% sched_debug.cfs_rq:/.removed.util_avg.avg
38.78 ± 45% -40.6% 23.03 ± 2% sched_debug.cfs_rq:/.runnable_load_avg.max
1407 ± 2% -9.9% 1267 ± 5% sched_debug.cfs_rq:/.util_avg.max
1302 ± 4% -13.0% 1133 ± 4% sched_debug.cfs_rq:/.util_est_enqueued.max
4087 ± 49% -53.2% 1913 ± 4% sched_debug.cpu.avg_idle.min
40.17 ± 41% -36.5% 25.50 ± 5% sched_debug.cpu.cpu_load[0].max
4.28 ± 12% -25.2% 3.20 ± 25% sched_debug.cpu.cpu_load[3].min
4.56 ± 8% -27.1% 3.32 ± 21% sched_debug.cpu.cpu_load[4].min
82050 ± 97% -73.0% 22126 ± 3% sched_debug.cpu.load.max
0.24 ± 4% +10.5% 0.27 ± 5% sched_debug.cpu.nr_running.stddev
361090 ± 15% +27.1% 458815 ± 16% sched_debug.cpu.nr_switches.max
53498 ± 16% +20.8% 64606 ± 11% sched_debug.cpu.nr_switches.stddev
-15.94 -15.9% -13.41 sched_debug.cpu.nr_uninterruptible.min
3.687e+10 +3.0% 3.8e+10 perf-stat.i.branch-instructions
18198224 +6.1% 19313004 perf-stat.i.branch-misses
45.75 -2.2 43.54 perf-stat.i.cache-miss-rate%
1.335e+08 +7.4% 1.434e+08 perf-stat.i.cache-references
34686 ± 4% +16.5% 40418 ± 7% perf-stat.i.context-switches
19532295 +8.0% 21094254 ± 2% perf-stat.i.dTLB-load-misses
0.03 ± 6% +0.0 0.04 ± 4% perf-stat.i.dTLB-store-miss-rate%
710649 ± 4% +38.9% 987128 ± 4% perf-stat.i.dTLB-store-misses
2.761e+09 +8.9% 3.007e+09 perf-stat.i.dTLB-stores
7145505 ± 2% +9.0% 7788838 ± 2% perf-stat.i.iTLB-load-misses
3102317 +8.7% 3371015 perf-stat.i.minor-faults
74.43 -2.5 71.93 perf-stat.i.node-load-miss-rate%
3972987 ± 3% +13.5% 4508220 ± 4% perf-stat.i.node-loads
54.67 -1.8 52.85 ± 2% perf-stat.i.node-store-miss-rate%
3102316 +8.7% 3371023 perf-stat.i.page-faults
0.83 ± 2% +5.4% 0.87 perf-stat.overall.MPKI
0.05 +0.0 0.05 perf-stat.overall.branch-miss-rate%
46.43 -2.2 44.21 perf-stat.overall.cache-miss-rate%
1.46 -1.6% 1.43 perf-stat.overall.cpi
0.04 +0.0 0.04 perf-stat.overall.dTLB-load-miss-rate%
0.03 ± 5% +0.0 0.03 ± 5% perf-stat.overall.dTLB-store-miss-rate%
22573 -6.5% 21098 ± 2% perf-stat.overall.instructions-per-iTLB-miss
0.69 +1.6% 0.70 perf-stat.overall.ipc
71.97 -2.3 69.66 perf-stat.overall.node-load-miss-rate%
11560 -6.3% 10837 perf-stat.overall.path-length
3.675e+10 +3.0% 3.787e+10 perf-stat.ps.branch-instructions
18140894 +6.1% 19251328 perf-stat.ps.branch-misses
1.333e+08 +7.3% 1.43e+08 perf-stat.ps.cache-references
34570 ± 4% +16.5% 40280 ± 7% perf-stat.ps.context-switches
19467989 +8.0% 21024486 ± 2% perf-stat.ps.dTLB-load-misses
708456 ± 4% +38.9% 983923 ± 4% perf-stat.ps.dTLB-store-misses
2.756e+09 +8.8% 2.998e+09 perf-stat.ps.dTLB-stores
7122526 ± 2% +9.0% 7762640 ± 2% perf-stat.ps.iTLB-load-misses
3092107 +8.7% 3359671 perf-stat.ps.minor-faults
3971985 ± 3% +13.2% 4498255 ± 4% perf-stat.ps.node-loads
3092107 +8.7% 3359671 perf-stat.ps.page-faults
5.586e+13 -6.3% 5.236e+13 perf-stat.total.instructions
775.33 ± 12% -18.8% 629.67 ± 13% interrupts.34:IR-PCI-MSI.1572864-edge.eth0-TxRx-0
7072 ±132% -97.6% 169.00 ± 3% interrupts.35:IR-PCI-MSI.1572865-edge.eth0-TxRx-1
343.67 ± 51% -51.3% 167.33 ± 4% interrupts.44:IR-PCI-MSI.1572874-edge.eth0-TxRx-10
240.33 ± 17% -31.3% 165.00 ± 4% interrupts.48:IR-PCI-MSI.1572878-edge.eth0-TxRx-14
197.00 ± 8% -14.0% 169.33 ± 3% interrupts.49:IR-PCI-MSI.1572879-edge.eth0-TxRx-15
173.00 -9.6% 156.33 interrupts.76:IR-PCI-MSI.1572904-edge.eth0-TxRx-40
197.00 ± 13% -20.6% 156.33 interrupts.82:IR-PCI-MSI.1572910-edge.eth0-TxRx-46
174.00 ± 2% -10.2% 156.33 interrupts.85:IR-PCI-MSI.1572913-edge.eth0-TxRx-49
308670 -5.9% 290349 interrupts.CAL:Function_call_interrupts
775.33 ± 12% -18.8% 629.67 ± 13% interrupts.CPU0.34:IR-PCI-MSI.1572864-edge.eth0-TxRx-0
7072 ±132% -97.6% 169.00 ± 3% interrupts.CPU1.35:IR-PCI-MSI.1572865-edge.eth0-TxRx-1
343.67 ± 51% -51.3% 167.33 ± 4% interrupts.CPU10.44:IR-PCI-MSI.1572874-edge.eth0-TxRx-10
3958 ± 15% +35.0% 5344 ± 18% interrupts.CPU11.RES:Rescheduling_interrupts
240.33 ± 17% -31.3% 165.00 ± 4% interrupts.CPU14.48:IR-PCI-MSI.1572878-edge.eth0-TxRx-14
197.00 ± 8% -14.0% 169.33 ± 3% interrupts.CPU15.49:IR-PCI-MSI.1572879-edge.eth0-TxRx-15
5240 ± 34% +49.8% 7850 interrupts.CPU15.NMI:Non-maskable_interrupts
5240 ± 34% +49.8% 7850 interrupts.CPU15.PMI:Performance_monitoring_interrupts
5270 ± 34% +49.2% 7863 interrupts.CPU16.NMI:Non-maskable_interrupts
5270 ± 34% +49.2% 7863 interrupts.CPU16.PMI:Performance_monitoring_interrupts
5234 ± 35% +49.9% 7844 interrupts.CPU19.NMI:Non-maskable_interrupts
5234 ± 35% +49.9% 7844 interrupts.CPU19.PMI:Performance_monitoring_interrupts
3987 ± 14% +64.1% 6544 ± 26% interrupts.CPU2.RES:Rescheduling_interrupts
5227 ± 34% +50.5% 7866 interrupts.CPU21.NMI:Non-maskable_interrupts
5227 ± 34% +50.5% 7866 interrupts.CPU21.PMI:Performance_monitoring_interrupts
5251 ± 34% +50.1% 7882 interrupts.CPU22.NMI:Non-maskable_interrupts
5251 ± 34% +50.1% 7882 interrupts.CPU22.PMI:Performance_monitoring_interrupts
3591 -14.8% 3060 ± 6% interrupts.CPU24.CAL:Function_call_interrupts
3752 ± 30% -33.3% 2503 ± 20% interrupts.CPU35.RES:Rescheduling_interrupts
2400 ± 18% +82.7% 4385 ± 38% interrupts.CPU37.RES:Rescheduling_interrupts
173.00 -9.6% 156.33 interrupts.CPU40.76:IR-PCI-MSI.1572904-edge.eth0-TxRx-40
197.00 ± 13% -20.6% 156.33 interrupts.CPU46.82:IR-PCI-MSI.1572910-edge.eth0-TxRx-46
6496 ± 43% -44.3% 3618 interrupts.CPU48.RES:Rescheduling_interrupts
174.00 ± 2% -10.2% 156.33 interrupts.CPU49.85:IR-PCI-MSI.1572913-edge.eth0-TxRx-49
2967 ± 12% +62.3% 4817 ± 29% interrupts.CPU51.RES:Rescheduling_interrupts
3538 ± 8% +35.3% 4788 ± 12% interrupts.CPU54.RES:Rescheduling_interrupts
2709 ± 10% +216.7% 8579 ± 49% interrupts.CPU55.RES:Rescheduling_interrupts
3410 ± 10% +77.2% 6043 ± 38% interrupts.CPU59.RES:Rescheduling_interrupts
3125 ± 14% +30.8% 4086 ± 5% interrupts.CPU61.RES:Rescheduling_interrupts
3489 ± 4% -8.1% 3206 interrupts.CPU66.CAL:Function_call_interrupts
4396 ± 30% -48.4% 2268 ± 19% interrupts.CPU67.RES:Rescheduling_interrupts
3547 ± 29% -49.5% 1790 ± 15% interrupts.CPU69.RES:Rescheduling_interrupts
6372 ± 71% -64.1% 2289 ± 31% interrupts.CPU71.RES:Rescheduling_interrupts
5363 ± 32% +42.8% 7658 ± 13% interrupts.CPU8.RES:Rescheduling_interrupts
1847 ± 38% +120.9% 4079 ± 22% interrupts.CPU81.RES:Rescheduling_interrupts
2386 ± 27% +169.3% 6425 ± 21% interrupts.CPU83.RES:Rescheduling_interrupts
3577 -10.8% 3190 ± 4% interrupts.CPU85.CAL:Function_call_interrupts
3007 ± 28% -36.4% 1912 ± 27% interrupts.CPU85.RES:Rescheduling_interrupts
127386 ± 4% -15.8% 107206 ± 9% softirqs.CPU0.TIMER
4781 ±131% -96.2% 182.67 ± 7% softirqs.CPU1.NET_RX
119534 ± 7% -11.6% 105649 ± 9% softirqs.CPU1.TIMER
116298 -12.5% 101784 ± 8% softirqs.CPU12.TIMER
121370 ± 4% -13.8% 104620 ± 7% softirqs.CPU16.TIMER
115479 ± 2% -7.6% 106670 ± 3% softirqs.CPU2.TIMER
117370 ± 4% -12.6% 102596 ± 8% softirqs.CPU20.TIMER
141857 ± 23% -27.4% 102983 ± 5% softirqs.CPU23.TIMER
121250 ± 4% -15.9% 101922 ± 3% softirqs.CPU24.TIMER
113802 ± 4% -12.3% 99762 ± 3% softirqs.CPU25.TIMER
115962 ± 7% -11.8% 102314 ± 5% softirqs.CPU27.TIMER
118600 ± 2% -15.9% 99746 ± 3% softirqs.CPU28.TIMER
111281 ± 3% -9.7% 100442 ± 2% softirqs.CPU29.TIMER
114727 ± 7% -11.7% 101284 ± 6% softirqs.CPU31.TIMER
117706 ± 2% -16.3% 98561 ± 2% softirqs.CPU32.TIMER
111704 ± 2% -11.1% 99308 ± 2% softirqs.CPU33.TIMER
113769 ± 5% -9.7% 102742 ± 3% softirqs.CPU34.TIMER
118381 ± 6% -14.3% 101509 ± 5% softirqs.CPU35.TIMER
124979 ± 5% -19.5% 100653 ± 3% softirqs.CPU36.TIMER
118029 ± 4% -14.1% 101349 ± 2% softirqs.CPU37.TIMER
116608 ± 5% -10.3% 104644 softirqs.CPU38.TIMER
120916 ± 7% -15.8% 101849 ± 5% softirqs.CPU39.TIMER
121219 ± 3% -14.4% 103712 ± 7% softirqs.CPU4.TIMER
124203 ± 5% -19.6% 99810 ± 5% softirqs.CPU40.TIMER
117777 ± 5% -14.0% 101305 ± 3% softirqs.CPU41.TIMER
15501 ± 6% +10.1% 17060 ± 7% softirqs.CPU42.RCU
117204 ± 3% -11.1% 104163 ± 3% softirqs.CPU42.TIMER
123928 ± 6% -16.4% 103591 ± 5% softirqs.CPU43.TIMER
121932 ± 4% -13.1% 105966 ± 9% softirqs.CPU44.TIMER
119465 ± 2% -14.0% 102690 ± 9% softirqs.CPU48.TIMER
15988 ± 9% -13.4% 13839 ± 3% softirqs.CPU49.RCU
118678 -14.5% 101519 ± 8% softirqs.CPU52.TIMER
115458 -12.3% 101281 ± 8% softirqs.CPU56.TIMER
119449 ± 3% -13.2% 103647 ± 7% softirqs.CPU60.TIMER
124537 ± 10% -17.8% 102344 ± 4% softirqs.CPU67.TIMER
121448 ± 5% -17.7% 99965 ± 3% softirqs.CPU68.TIMER
112604 ± 4% -12.8% 98184 ± 3% softirqs.CPU69.TIMER
116708 ± 7% -13.4% 101059 ± 5% softirqs.CPU71.TIMER
118026 ± 2% -16.5% 98503 ± 3% softirqs.CPU72.TIMER
110472 ± 3% -9.1% 100419 ± 3% softirqs.CPU73.TIMER
114615 ± 8% -12.3% 100546 ± 6% softirqs.CPU75.TIMER
117420 ± 3% -15.5% 99212 ± 3% softirqs.CPU76.TIMER
111314 -10.1% 100038 ± 3% softirqs.CPU77.TIMER
114170 ± 5% -11.5% 100999 ± 2% softirqs.CPU78.TIMER
118013 ± 7% -13.5% 102039 ± 6% softirqs.CPU79.TIMER
119115 -14.2% 102215 ± 9% softirqs.CPU8.TIMER
124833 ± 5% -18.8% 101420 ± 3% softirqs.CPU80.TIMER
116041 ± 5% -12.9% 101060 ± 3% softirqs.CPU81.TIMER
115255 ± 5% -9.2% 104659 ± 2% softirqs.CPU82.TIMER
119809 ± 7% -15.8% 100850 ± 5% softirqs.CPU83.TIMER
122483 ± 5% -19.4% 98724 ± 4% softirqs.CPU84.TIMER
116504 ± 4% -13.7% 100577 ± 3% softirqs.CPU85.TIMER
116582 ± 4% -12.0% 102642 ± 3% softirqs.CPU86.TIMER
123119 ± 8% -17.1% 102019 ± 6% softirqs.CPU87.TIMER
10286028 -11.2% 9128903 ± 5% softirqs.TIMER
67.05 ± 5% -7.1 59.96 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.mmap64
67.05 ± 5% -7.1 59.97 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.mmap64
67.26 ± 5% -7.1 60.18 perf-profile.calltrace.cycles-pp.mmap64
66.19 ± 5% -6.9 59.30 perf-profile.calltrace.cycles-pp.vm_mmap_pgoff.ksys_mmap_pgoff.do_syscall_64.entry_SYSCALL_64_after_hwframe.mmap64
66.26 ± 5% -6.9 59.37 perf-profile.calltrace.cycles-pp.ksys_mmap_pgoff.do_syscall_64.entry_SYSCALL_64_after_hwframe.mmap64
79.90 -2.2 77.73 perf-profile.calltrace.cycles-pp.osq_lock.rwsem_down_write_failed.call_rwsem_down_write_failed.down_write.vma_link
81.13 -2.2 78.97 perf-profile.calltrace.cycles-pp.down_write.vma_link.mmap_region.do_mmap.vm_mmap_pgoff
81.05 -2.2 78.89 perf-profile.calltrace.cycles-pp.call_rwsem_down_write_failed.down_write.vma_link.mmap_region.do_mmap
81.04 -2.2 78.89 perf-profile.calltrace.cycles-pp.rwsem_down_write_failed.call_rwsem_down_write_failed.down_write.vma_link.mmap_region
82.13 -2.1 80.05 perf-profile.calltrace.cycles-pp.vma_link.mmap_region.do_mmap.vm_mmap_pgoff.ksys_mmap_pgoff
82.52 -2.0 80.51 perf-profile.calltrace.cycles-pp.mmap_region.do_mmap.vm_mmap_pgoff.ksys_mmap_pgoff.do_syscall_64
82.90 -2.0 80.94 perf-profile.calltrace.cycles-pp.do_mmap.vm_mmap_pgoff.ksys_mmap_pgoff.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.92 -0.2 0.70 ± 4% perf-profile.calltrace.cycles-pp.__handle_mm_fault.handle_mm_fault.__do_page_fault.do_page_fault.page_fault
0.78 -0.2 0.57 ± 5% perf-profile.calltrace.cycles-pp.exit_to_usermode_loop.do_syscall_64.entry_SYSCALL_64_after_hwframe.mmap64
0.78 -0.2 0.57 ± 5% perf-profile.calltrace.cycles-pp.task_work_run.exit_to_usermode_loop.do_syscall_64.entry_SYSCALL_64_after_hwframe.mmap64
0.77 ± 2% -0.2 0.57 ± 5% perf-profile.calltrace.cycles-pp.task_numa_work.task_work_run.exit_to_usermode_loop.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.11 -0.2 0.92 ± 2% perf-profile.calltrace.cycles-pp.handle_mm_fault.__do_page_fault.do_page_fault.page_fault.do_access
1.85 -0.1 1.77 perf-profile.calltrace.cycles-pp.__do_page_fault.do_page_fault.page_fault.do_access
3.83 +0.2 4.06 perf-profile.calltrace.cycles-pp.page_fault.do_access
0.17 ±141% +0.4 0.54 ± 2% perf-profile.calltrace.cycles-pp.swapgs_restore_regs_and_return_to_usermode.do_access
8.94 +1.1 9.99 perf-profile.calltrace.cycles-pp.do_access
10.60 +1.5 12.09 perf-profile.calltrace.cycles-pp.do_rw_once
16.81 ± 20% +5.0 21.76 ± 4% perf-profile.calltrace.cycles-pp.vm_mmap_pgoff.ksys_mmap_pgoff.do_syscall_64.entry_SYSCALL_64_after_hwframe
17.05 ± 20% +5.0 22.01 ± 4% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
17.05 ± 20% +5.0 22.01 ± 4% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
16.82 ± 20% +5.0 21.79 ± 4% perf-profile.calltrace.cycles-pp.ksys_mmap_pgoff.do_syscall_64.entry_SYSCALL_64_after_hwframe
67.27 ± 5% -7.1 60.19 perf-profile.children.cycles-pp.mmap64
79.93 -2.2 77.75 perf-profile.children.cycles-pp.osq_lock
81.13 -2.2 78.97 perf-profile.children.cycles-pp.down_write
81.05 -2.2 78.89 perf-profile.children.cycles-pp.call_rwsem_down_write_failed
81.05 -2.2 78.89 perf-profile.children.cycles-pp.rwsem_down_write_failed
84.15 -2.1 82.01 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
84.14 -2.1 82.01 perf-profile.children.cycles-pp.do_syscall_64
82.13 -2.1 80.05 perf-profile.children.cycles-pp.vma_link
82.53 -2.0 80.51 perf-profile.children.cycles-pp.mmap_region
82.90 -2.0 80.94 perf-profile.children.cycles-pp.do_mmap
82.99 -1.9 81.06 perf-profile.children.cycles-pp.vm_mmap_pgoff
83.09 -1.9 81.17 perf-profile.children.cycles-pp.ksys_mmap_pgoff
1.18 ± 3% -0.2 0.94 ± 5% perf-profile.children.cycles-pp.exit_to_usermode_loop
1.18 ± 3% -0.2 0.94 ± 5% perf-profile.children.cycles-pp.task_work_run
1.18 ± 3% -0.2 0.94 ± 5% perf-profile.children.cycles-pp.task_numa_work
0.94 -0.2 0.72 ± 3% perf-profile.children.cycles-pp.__handle_mm_fault
1.12 -0.2 0.94 ± 2% perf-profile.children.cycles-pp.handle_mm_fault
1.87 -0.1 1.79 perf-profile.children.cycles-pp.__do_page_fault
0.11 ± 4% -0.1 0.06 ± 8% perf-profile.children.cycles-pp.osq_unlock
0.40 -0.0 0.38 ± 2% perf-profile.children.cycles-pp.smp_apic_timer_interrupt
0.23 ± 2% -0.0 0.22 perf-profile.children.cycles-pp.__hrtimer_run_queues
0.05 +0.0 0.06 perf-profile.children.cycles-pp.selinux_mmap_file
0.05 +0.0 0.06 perf-profile.children.cycles-pp.__fget
0.05 +0.0 0.06 perf-profile.children.cycles-pp.__slab_alloc
0.05 +0.0 0.06 perf-profile.children.cycles-pp.___slab_alloc
0.05 +0.0 0.06 perf-profile.children.cycles-pp.new_slab
0.07 +0.0 0.08 perf-profile.children.cycles-pp.security_mmap_file
0.10 ± 4% +0.0 0.11 perf-profile.children.cycles-pp.vm_area_alloc
0.07 ± 6% +0.0 0.09 ± 5% perf-profile.children.cycles-pp.syscall_return_via_sysret
0.09 +0.0 0.10 ± 4% perf-profile.children.cycles-pp.vmacache_find
0.07 ± 7% +0.0 0.08 perf-profile.children.cycles-pp.kmem_cache_alloc
0.06 +0.0 0.07 ± 6% perf-profile.children.cycles-pp._raw_spin_lock
0.09 +0.0 0.11 ± 4% perf-profile.children.cycles-pp.sync_regs
0.07 ± 7% +0.0 0.09 ± 5% perf-profile.children.cycles-pp.__rb_insert_augmented
0.14 ± 3% +0.0 0.17 ± 5% perf-profile.children.cycles-pp.vma_policy_mof
0.22 ± 2% +0.0 0.25 ± 3% perf-profile.children.cycles-pp.find_vma
0.18 ± 2% +0.0 0.22 ± 2% perf-profile.children.cycles-pp.perf_event_mmap
0.22 ± 3% +0.0 0.26 perf-profile.children.cycles-pp.___perf_sw_event
0.28 +0.0 0.32 perf-profile.children.cycles-pp.unmapped_area_topdown
0.58 ± 2% +0.0 0.62 ± 4% perf-profile.children.cycles-pp.swapgs_restore_regs_and_return_to_usermode
0.31 +0.0 0.35 ± 2% perf-profile.children.cycles-pp.arch_get_unmapped_area_topdown
0.18 ± 2% +0.0 0.23 ± 4% perf-profile.children.cycles-pp.do_anonymous_page
0.33 +0.0 0.38 perf-profile.children.cycles-pp.get_unmapped_area
0.00 +0.1 0.05 perf-profile.children.cycles-pp.vma_interval_tree_augment_rotate
0.00 +0.1 0.05 perf-profile.children.cycles-pp.down_read_trylock
0.00 +0.1 0.05 perf-profile.children.cycles-pp.perf_iterate_sb
0.00 +0.1 0.05 perf-profile.children.cycles-pp.___might_sleep
0.29 +0.1 0.34 ± 2% perf-profile.children.cycles-pp.__perf_sw_event
0.44 +0.1 0.50 ± 2% perf-profile.children.cycles-pp.vma_interval_tree_insert
0.00 +0.1 0.06 perf-profile.children.cycles-pp.__vma_link_list
0.55 +0.1 0.64 perf-profile.children.cycles-pp.native_irq_return_iret
3.09 +0.1 3.20 perf-profile.children.cycles-pp.page_fault
0.78 +0.1 0.91 perf-profile.children.cycles-pp.rwsem_spin_on_owner
10.80 +1.3 12.07 perf-profile.children.cycles-pp.do_access
9.23 +1.3 10.55 perf-profile.children.cycles-pp.do_rw_once
79.58 -2.2 77.43 perf-profile.self.cycles-pp.osq_lock
0.71 -0.3 0.44 ± 6% perf-profile.self.cycles-pp.__handle_mm_fault
1.04 ± 3% -0.3 0.77 ± 5% perf-profile.self.cycles-pp.task_numa_work
0.21 -0.1 0.14 ± 5% perf-profile.self.cycles-pp.rwsem_down_write_failed
0.11 ± 4% -0.1 0.06 ± 8% perf-profile.self.cycles-pp.osq_unlock
0.18 ± 5% -0.0 0.14 ± 3% perf-profile.self.cycles-pp.up_write
0.05 +0.0 0.06 perf-profile.self.cycles-pp.__fget
0.07 ± 6% +0.0 0.09 ± 5% perf-profile.self.cycles-pp.syscall_return_via_sysret
0.09 ± 5% +0.0 0.10 perf-profile.self.cycles-pp.vmacache_find
0.07 +0.0 0.09 ± 5% perf-profile.self.cycles-pp.__perf_sw_event
0.06 ± 7% +0.0 0.08 perf-profile.self.cycles-pp.__rb_insert_augmented
0.08 +0.0 0.10 ± 4% perf-profile.self.cycles-pp.sync_regs
0.10 ± 4% +0.0 0.12 ± 4% perf-profile.self.cycles-pp.mmap_region
0.09 ± 5% +0.0 0.11 ± 8% perf-profile.self.cycles-pp.vma_policy_mof
0.08 ± 5% +0.0 0.10 ± 4% perf-profile.self.cycles-pp.do_anonymous_page
0.12 ± 4% +0.0 0.14 ± 6% perf-profile.self.cycles-pp.find_vma
0.17 ± 2% +0.0 0.19 ± 2% perf-profile.self.cycles-pp.handle_mm_fault
0.19 ± 4% +0.0 0.22 ± 2% perf-profile.self.cycles-pp.___perf_sw_event
0.25 +0.0 0.28 ± 3% perf-profile.self.cycles-pp.__do_page_fault
0.28 +0.0 0.32 perf-profile.self.cycles-pp.unmapped_area_topdown
0.00 +0.1 0.05 perf-profile.self.cycles-pp.page_fault
0.00 +0.1 0.05 perf-profile.self.cycles-pp.vma_interval_tree_augment_rotate
0.00 +0.1 0.05 perf-profile.self.cycles-pp.___might_sleep
0.44 +0.1 0.49 perf-profile.self.cycles-pp.vma_interval_tree_insert
0.00 +0.1 0.06 perf-profile.self.cycles-pp.__vma_link_list
0.37 ± 2% +0.1 0.44 perf-profile.self.cycles-pp.swapgs_restore_regs_and_return_to_usermode
0.55 +0.1 0.64 perf-profile.self.cycles-pp.native_irq_return_iret
0.78 +0.1 0.91 perf-profile.self.cycles-pp.rwsem_spin_on_owner
5.50 +0.8 6.31 perf-profile.self.cycles-pp.do_access
6.00 +0.9 6.92 perf-profile.self.cycles-pp.do_rw_once
vm-scalability.throughput
2e+07 +-+-------OO-------O---O------------------------------------------+
1.8e+07 O-OO OO O OO O O O O OO OO O |
|.++.++.+.++.++.+.++.+.++.++.+.++.++.+.+ ++.+.++.+.+ ++.+.++.++.|
1.6e+07 +-+ : : : : |
1.4e+07 +-+ : : : : |
| : : : : |
1.2e+07 +-+ : : : : |
1e+07 +-+ : : : : |
8e+06 +-+ :: :: |
| :: :: |
6e+06 +-+ :: :: |
4e+06 +-+ :: :: |
| : : |
2e+06 +-+ : : |
0 +-+--------------------------O----O-------------------------------+
vm-scalability.median
250000 +-+----------------------------------------------------------------+
| |
O OO O OO OO O OO O OO O OO O O O O |
200000 +-++.+.++.++.+.++.+.++.+.++.++.+.++.+.++ +.+.++.+.++ ++.++.+.++.|
| : : : : |
| : : : : |
150000 +-+ : : : : |
| : : : : |
100000 +-+ : : : : |
| :: : : |
| :: : : |
50000 +-+ :: : : |
| : : |
| : : |
0 +-+--------------------------O----O--------------------------------+
[*] 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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