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Date: Tue, 25 May 2021 11:16:36 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Jason Gunthorpe <jgg@...dia.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
John Hubbard <jhubbard@...dia.com>, Jan Kara <jack@...e.cz>,
Peter Xu <peterx@...hat.com>,
Andrea Arcangeli <aarcange@...hat.com>,
"Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
Christoph Hellwig <hch@....de>,
Hugh Dickins <hughd@...gle.com>, Jann Horn <jannh@...gle.com>,
Kirill Shutemov <kirill@...temov.name>,
Kirill Tkhai <ktkhai@...tuozzo.com>,
Leon Romanovsky <leonro@...dia.com>,
Michal Hocko <mhocko@...e.com>,
Oleg Nesterov <oleg@...hat.com>,
Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
lkp@...el.com, ying.huang@...el.com, feng.tang@...el.com,
zhengjun.xing@...el.com
Subject: [mm/gup] 57efa1fe59: will-it-scale.per_thread_ops -9.2% regression
Greeting,
FYI, we noticed a -9.2% regression of will-it-scale.per_thread_ops due to commit:
commit: 57efa1fe5957694fa541c9062de0a127f0b9acb0 ("mm/gup: prevent gup_fast from racing with COW during fork")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: will-it-scale
on test machine: 96 threads 2 sockets Ice Lake with 256G memory
with following parameters:
nr_task: 50%
mode: thread
test: mmap1
cpufreq_governor: performance
ucode: 0xb000280
test-description: Will It Scale takes a testcase and runs it from 1 through to n parallel copies to see if the testcase will scale. It builds both a process and threads based test in order to see any differences between the two.
test-url: https://github.com/antonblanchard/will-it-scale
In addition to that, the commit also has significant impact on the following tests:
+------------------+---------------------------------------------------------------------------------+
| testcase: change | will-it-scale: will-it-scale.per_thread_ops 3.7% improvement |
| test machine | 88 threads 2 sockets Intel(R) Xeon(R) Gold 6238M CPU @ 2.10GHz with 128G memory |
| test parameters | cpufreq_governor=performance |
| | mode=thread |
| | nr_task=50% |
| | test=mmap1 |
| | ucode=0x5003006 |
+------------------+---------------------------------------------------------------------------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
bin/lkp run generated-yaml-file
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase/ucode:
gcc-9/performance/x86_64-rhel-8.3/thread/50%/debian-10.4-x86_64-20200603.cgz/lkp-icl-2sp1/mmap1/will-it-scale/0xb000280
commit:
c28b1fc703 ("mm/gup: reorganize internal_get_user_pages_fast()")
57efa1fe59 ("mm/gup: prevent gup_fast from racing with COW during fork")
c28b1fc70390df32 57efa1fe5957694fa541c9062de
---------------- ---------------------------
%stddev %change %stddev
\ | \
342141 -9.2% 310805 ± 2% will-it-scale.48.threads
7127 -9.2% 6474 ± 2% will-it-scale.per_thread_ops
342141 -9.2% 310805 ± 2% will-it-scale.workload
2555927 ± 3% +45.8% 3727702 meminfo.Committed_AS
12108 ± 13% -36.7% 7665 ± 7% vmstat.system.cs
1142492 ± 30% -47.3% 602364 ± 11% cpuidle.C1.usage
282373 ± 13% -45.6% 153684 ± 7% cpuidle.POLL.usage
48437 ± 3% -5.9% 45563 proc-vmstat.nr_active_anon
54617 ± 3% -5.5% 51602 proc-vmstat.nr_shmem
48437 ± 3% -5.9% 45563 proc-vmstat.nr_zone_active_anon
70511 ± 3% -5.1% 66942 ± 2% proc-vmstat.pgactivate
278653 ± 8% +23.4% 343904 ± 4% sched_debug.cpu.avg_idle.stddev
22572 ± 16% -36.3% 14378 ± 4% sched_debug.cpu.nr_switches.avg
66177 ± 16% -36.8% 41800 ± 21% sched_debug.cpu.nr_switches.max
11613 ± 15% -41.4% 6810 ± 23% sched_debug.cpu.nr_switches.stddev
22.96 ± 15% +55.6% 35.73 ± 12% perf-sched.total_wait_and_delay.average.ms
69713 ± 19% -38.0% 43235 ± 12% perf-sched.total_wait_and_delay.count.ms
22.95 ± 15% +55.6% 35.72 ± 12% perf-sched.total_wait_time.average.ms
29397 ± 23% -35.3% 19030 ± 17% perf-sched.wait_and_delay.count.rwsem_down_write_slowpath.down_write_killable.__vm_munmap.__x64_sys_munmap
31964 ± 20% -50.8% 15738 ± 14% perf-sched.wait_and_delay.count.rwsem_down_write_slowpath.down_write_killable.vm_mmap_pgoff.ksys_mmap_pgoff
4.59 ± 6% +12.2% 5.15 ± 4% perf-stat.i.MPKI
3.105e+09 -2.1% 3.04e+09 perf-stat.i.branch-instructions
12033 ± 12% -36.8% 7600 ± 7% perf-stat.i.context-switches
10.06 +1.9% 10.25 perf-stat.i.cpi
4.067e+09 -1.3% 4.016e+09 perf-stat.i.dTLB-loads
4.521e+08 -5.1% 4.291e+08 ± 2% perf-stat.i.dTLB-stores
1.522e+10 -1.6% 1.497e+10 perf-stat.i.instructions
0.10 -1.9% 0.10 perf-stat.i.ipc
0.19 ± 8% -22.8% 0.15 ± 5% perf-stat.i.metric.K/sec
80.30 -1.7% 78.93 perf-stat.i.metric.M/sec
167270 ± 6% -14.9% 142312 ± 11% perf-stat.i.node-loads
49.76 -1.6 48.11 perf-stat.i.node-store-miss-rate%
3945152 +6.2% 4189006 perf-stat.i.node-stores
4.59 ± 6% +12.1% 5.15 ± 4% perf-stat.overall.MPKI
10.04 +1.8% 10.23 perf-stat.overall.cpi
0.10 -1.8% 0.10 perf-stat.overall.ipc
49.76 -1.6 48.12 perf-stat.overall.node-store-miss-rate%
13400506 +8.2% 14504566 perf-stat.overall.path-length
3.094e+09 -2.1% 3.03e+09 perf-stat.ps.branch-instructions
12087 ± 13% -36.9% 7622 ± 7% perf-stat.ps.context-switches
4.054e+09 -1.3% 4.002e+09 perf-stat.ps.dTLB-loads
4.508e+08 -5.1% 4.278e+08 ± 2% perf-stat.ps.dTLB-stores
1.516e+10 -1.6% 1.492e+10 perf-stat.ps.instructions
3932404 +6.2% 4175831 perf-stat.ps.node-stores
4.584e+12 -1.7% 4.506e+12 perf-stat.total.instructions
364038 ± 6% -40.3% 217265 ± 9% interrupts.CAL:Function_call_interrupts
5382 ± 33% -63.4% 1970 ± 35% interrupts.CPU44.CAL:Function_call_interrupts
6325 ± 19% -58.1% 2650 ± 37% interrupts.CPU47.CAL:Function_call_interrupts
11699 ± 19% -60.6% 4610 ± 23% interrupts.CPU48.CAL:Function_call_interrupts
94.20 ± 22% -45.8% 51.09 ± 46% interrupts.CPU48.TLB:TLB_shootdowns
9223 ± 24% -52.5% 4383 ± 28% interrupts.CPU49.CAL:Function_call_interrupts
9507 ± 24% -57.5% 4040 ± 27% interrupts.CPU50.CAL:Function_call_interrupts
4530 ± 18% -33.9% 2993 ± 28% interrupts.CPU62.CAL:Function_call_interrupts
82.00 ± 21% -41.9% 47.64 ± 38% interrupts.CPU63.TLB:TLB_shootdowns
4167 ± 16% -45.4% 2276 ± 22% interrupts.CPU64.CAL:Function_call_interrupts
135.20 ± 31% -58.4% 56.27 ± 51% interrupts.CPU64.TLB:TLB_shootdowns
4155 ± 17% -42.5% 2387 ± 27% interrupts.CPU65.CAL:Function_call_interrupts
95.00 ± 48% -53.8% 43.91 ± 42% interrupts.CPU65.TLB:TLB_shootdowns
4122 ± 20% -39.4% 2497 ± 29% interrupts.CPU66.CAL:Function_call_interrupts
3954 ± 14% -41.4% 2318 ± 28% interrupts.CPU67.CAL:Function_call_interrupts
3802 ± 17% -41.9% 2209 ± 17% interrupts.CPU70.CAL:Function_call_interrupts
3787 ± 11% -48.2% 1961 ± 29% interrupts.CPU71.CAL:Function_call_interrupts
3580 ± 14% -45.1% 1964 ± 19% interrupts.CPU72.CAL:Function_call_interrupts
3711 ± 20% -51.3% 1806 ± 25% interrupts.CPU73.CAL:Function_call_interrupts
3494 ± 21% -40.6% 2076 ± 21% interrupts.CPU76.CAL:Function_call_interrupts
3416 ± 21% -45.2% 1873 ± 26% interrupts.CPU77.CAL:Function_call_interrupts
3047 ± 24% -38.0% 1890 ± 18% interrupts.CPU78.CAL:Function_call_interrupts
3102 ± 28% -41.8% 1805 ± 16% interrupts.CPU80.CAL:Function_call_interrupts
2811 ± 23% -36.5% 1785 ± 22% interrupts.CPU83.CAL:Function_call_interrupts
2617 ± 17% -30.7% 1814 ± 30% interrupts.CPU84.CAL:Function_call_interrupts
3322 ± 25% -38.1% 2055 ± 29% interrupts.CPU87.CAL:Function_call_interrupts
2941 ± 12% -39.2% 1787 ± 27% interrupts.CPU93.CAL:Function_call_interrupts
72.56 -19.7 52.82 perf-profile.calltrace.cycles-pp.__mmap
72.52 -19.7 52.78 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__mmap
72.48 -19.7 52.74 perf-profile.calltrace.cycles-pp.ksys_mmap_pgoff.do_syscall_64.entry_SYSCALL_64_after_hwframe.__mmap
72.49 -19.7 52.76 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__mmap
72.47 -19.7 52.74 perf-profile.calltrace.cycles-pp.vm_mmap_pgoff.ksys_mmap_pgoff.do_syscall_64.entry_SYSCALL_64_after_hwframe.__mmap
71.74 -19.7 52.04 perf-profile.calltrace.cycles-pp.down_write_killable.vm_mmap_pgoff.ksys_mmap_pgoff.do_syscall_64.entry_SYSCALL_64_after_hwframe
71.63 -19.7 51.95 perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.down_write_killable.vm_mmap_pgoff.ksys_mmap_pgoff.do_syscall_64
71.52 -19.6 51.88 perf-profile.calltrace.cycles-pp.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable.vm_mmap_pgoff.ksys_mmap_pgoff
70.12 -19.2 50.92 perf-profile.calltrace.cycles-pp.osq_lock.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable.vm_mmap_pgoff
0.91 ± 2% -0.2 0.70 perf-profile.calltrace.cycles-pp.rwsem_spin_on_owner.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable.vm_mmap_pgoff
0.87 ± 2% +0.1 0.95 ± 2% perf-profile.calltrace.cycles-pp.__do_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.6 0.63 ± 2% perf-profile.calltrace.cycles-pp.rwsem_spin_on_owner.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable.__vm_munmap
24.24 ± 3% +19.4 43.62 perf-profile.calltrace.cycles-pp.osq_lock.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable.__vm_munmap
24.72 ± 3% +19.8 44.47 perf-profile.calltrace.cycles-pp.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable.__vm_munmap.__x64_sys_munmap
24.87 ± 3% +19.8 44.62 perf-profile.calltrace.cycles-pp.down_write_killable.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe
24.78 ± 3% +19.8 44.54 perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.down_write_killable.__vm_munmap.__x64_sys_munmap.do_syscall_64
25.94 ± 3% +19.8 45.73 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__munmap
25.97 ± 3% +19.8 45.77 perf-profile.calltrace.cycles-pp.__munmap
25.90 ± 3% +19.8 45.70 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap
25.88 ± 3% +19.8 45.68 perf-profile.calltrace.cycles-pp.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap
25.87 ± 3% +19.8 45.67 perf-profile.calltrace.cycles-pp.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap
72.57 -19.7 52.83 perf-profile.children.cycles-pp.__mmap
72.48 -19.7 52.74 perf-profile.children.cycles-pp.ksys_mmap_pgoff
72.48 -19.7 52.74 perf-profile.children.cycles-pp.vm_mmap_pgoff
0.22 ± 5% -0.1 0.14 ± 6% perf-profile.children.cycles-pp.unmap_region
0.08 ± 23% -0.0 0.04 ± 61% perf-profile.children.cycles-pp.__schedule
0.06 ± 7% -0.0 0.03 ± 75% perf-profile.children.cycles-pp.perf_event_mmap
0.12 ± 4% -0.0 0.09 ± 5% perf-profile.children.cycles-pp.up_write
0.09 ± 7% -0.0 0.06 ± 16% perf-profile.children.cycles-pp.unmap_vmas
0.10 ± 4% -0.0 0.08 ± 3% perf-profile.children.cycles-pp.up_read
0.18 ± 2% +0.0 0.20 ± 3% perf-profile.children.cycles-pp.vm_area_dup
0.18 ± 5% +0.0 0.21 ± 2% perf-profile.children.cycles-pp.vma_merge
0.12 ± 4% +0.0 0.14 ± 4% perf-profile.children.cycles-pp.kmem_cache_free
0.19 ± 6% +0.0 0.23 ± 2% perf-profile.children.cycles-pp.get_unmapped_area
0.16 ± 6% +0.0 0.20 ± 2% perf-profile.children.cycles-pp.vm_unmapped_area
0.17 ± 6% +0.0 0.21 ± 2% perf-profile.children.cycles-pp.arch_get_unmapped_area_topdown
0.07 ± 10% +0.1 0.14 ± 16% perf-profile.children.cycles-pp.find_vma
0.27 ± 4% +0.1 0.35 ± 2% perf-profile.children.cycles-pp.__vma_adjust
0.35 ± 2% +0.1 0.43 ± 3% perf-profile.children.cycles-pp.__split_vma
0.87 ± 2% +0.1 0.95 ± 2% perf-profile.children.cycles-pp.__do_munmap
1.23 +0.1 1.33 perf-profile.children.cycles-pp.rwsem_spin_on_owner
25.98 ± 3% +19.8 45.78 perf-profile.children.cycles-pp.__munmap
25.87 ± 3% +19.8 45.68 perf-profile.children.cycles-pp.__vm_munmap
25.88 ± 3% +19.8 45.68 perf-profile.children.cycles-pp.__x64_sys_munmap
0.53 ± 2% -0.2 0.35 ± 3% perf-profile.self.cycles-pp.rwsem_optimistic_spin
0.08 ± 5% -0.1 0.03 ± 75% perf-profile.self.cycles-pp.do_mmap
0.11 ± 6% -0.0 0.09 ± 5% perf-profile.self.cycles-pp.up_write
0.19 ± 4% -0.0 0.16 ± 5% perf-profile.self.cycles-pp.down_write_killable
0.05 ± 8% +0.0 0.07 ± 8% perf-profile.self.cycles-pp.downgrade_write
0.11 ± 4% +0.0 0.14 ± 4% perf-profile.self.cycles-pp.__vma_adjust
0.16 ± 6% +0.0 0.20 ± 3% perf-profile.self.cycles-pp.vm_unmapped_area
0.05 ± 9% +0.0 0.10 ± 13% perf-profile.self.cycles-pp.find_vma
1.21 +0.1 1.31 perf-profile.self.cycles-pp.rwsem_spin_on_owner
will-it-scale.per_thread_ops
7400 +--------------------------------------------------------------------+
| + |
7200 |.++. .+. +.+ .++. : :.+ .+ +. |
| ++.+.++ ++ + +.+.++.+ ++.+.++.++. : + + : : + |
7000 |-+ + + : + :: |
| + + .+ : + |
6800 |-+ + + |
| O |
6600 |-+ O O O O O O OO OO O |
| OO O O O OO O O O O O O O O O |
6400 |-+ O O O O O O OO O |
| O O O |
6200 |-+ O |
| O |
6000 +--------------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
***************************************************************************************************
lkp-csl-2sp9: 88 threads 2 sockets Intel(R) Xeon(R) Gold 6238M CPU @ 2.10GHz with 128G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase/ucode:
gcc-9/performance/x86_64-rhel-8.3/thread/50%/debian-10.4-x86_64-20200603.cgz/lkp-csl-2sp9/mmap1/will-it-scale/0x5003006
commit:
c28b1fc703 ("mm/gup: reorganize internal_get_user_pages_fast()")
57efa1fe59 ("mm/gup: prevent gup_fast from racing with COW during fork")
c28b1fc70390df32 57efa1fe5957694fa541c9062de
---------------- ---------------------------
%stddev %change %stddev
\ | \
247840 +3.7% 257132 ± 2% will-it-scale.44.threads
5632 +3.7% 5843 ± 2% will-it-scale.per_thread_ops
247840 +3.7% 257132 ± 2% will-it-scale.workload
0.10 ± 5% +0.0 0.13 ± 8% perf-profile.children.cycles-pp.find_vma
14925 ± 19% -48.2% 7724 ± 8% softirqs.CPU87.SCHED
9950 ± 3% -36.1% 6355 ± 2% vmstat.system.cs
3312916 ± 4% +13.9% 3774536 ± 9% cpuidle.C1.time
1675504 ± 5% -36.6% 1061625 cpuidle.POLL.time
987055 ± 5% -41.8% 574757 ± 2% cpuidle.POLL.usage
165545 ± 3% -12.2% 145358 ± 4% meminfo.Active
165235 ± 3% -12.1% 145188 ± 4% meminfo.Active(anon)
180757 ± 3% -11.7% 159538 ± 3% meminfo.Shmem
2877001 ± 11% +16.2% 3342948 ± 10% sched_debug.cfs_rq:/.min_vruntime.avg
5545708 ± 11% +9.8% 6086941 ± 8% sched_debug.cfs_rq:/.min_vruntime.max
2773178 ± 11% +15.4% 3199941 ± 9% sched_debug.cfs_rq:/.spread0.avg
733740 ± 3% -12.0% 646033 ± 5% sched_debug.cpu.avg_idle.avg
17167 ± 10% -28.2% 12332 ± 7% sched_debug.cpu.nr_switches.avg
49180 ± 14% -33.5% 32687 ± 22% sched_debug.cpu.nr_switches.max
9311 ± 18% -36.2% 5943 ± 22% sched_debug.cpu.nr_switches.stddev
41257 ± 3% -12.1% 36252 ± 4% proc-vmstat.nr_active_anon
339681 -1.6% 334294 proc-vmstat.nr_file_pages
10395 -3.5% 10036 proc-vmstat.nr_mapped
45130 ± 3% -11.7% 39848 ± 3% proc-vmstat.nr_shmem
41257 ± 3% -12.1% 36252 ± 4% proc-vmstat.nr_zone_active_anon
841530 -1.7% 826917 proc-vmstat.numa_local
21515 ± 11% -68.9% 6684 ± 70% proc-vmstat.numa_pages_migrated
60224 ± 3% -11.1% 53513 ± 3% proc-vmstat.pgactivate
981265 -2.5% 956415 proc-vmstat.pgalloc_normal
895893 -1.9% 878978 proc-vmstat.pgfree
21515 ± 11% -68.9% 6684 ± 70% proc-vmstat.pgmigrate_success
0.07 ±135% -74.1% 0.02 ± 5% perf-sched.sch_delay.max.ms.preempt_schedule_common._cond_resched.stop_one_cpu.__set_cpus_allowed_ptr.sched_setaffinity
21.44 ± 5% +80.9% 38.79 ± 3% perf-sched.total_wait_and_delay.average.ms
67273 ± 6% -44.9% 37095 ± 5% perf-sched.total_wait_and_delay.count.ms
21.44 ± 5% +80.9% 38.79 ± 3% perf-sched.total_wait_time.average.ms
0.08 ± 14% +60.1% 0.13 ± 9% perf-sched.wait_and_delay.avg.ms.rwsem_down_write_slowpath.down_write_killable.__vm_munmap.__x64_sys_munmap
0.09 ± 12% +58.0% 0.15 ± 15% perf-sched.wait_and_delay.avg.ms.rwsem_down_write_slowpath.down_write_killable.vm_mmap_pgoff.ksys_mmap_pgoff
255.38 ± 14% +22.1% 311.71 ± 17% perf-sched.wait_and_delay.avg.ms.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_sys_poll
31877 ± 10% -54.2% 14606 ± 13% perf-sched.wait_and_delay.count.rwsem_down_write_slowpath.down_write_killable.__vm_munmap.__x64_sys_munmap
27110 ± 7% -47.3% 14280 ± 4% perf-sched.wait_and_delay.count.rwsem_down_write_slowpath.down_write_killable.vm_mmap_pgoff.ksys_mmap_pgoff
138.60 ± 13% -21.4% 109.00 ± 15% perf-sched.wait_and_delay.count.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_sys_poll
1.00 ±199% -99.9% 0.00 ±200% perf-sched.wait_time.avg.ms.preempt_schedule_common._cond_resched.remove_vma.__do_munmap.__vm_munmap
0.08 ± 14% +60.9% 0.13 ± 9% perf-sched.wait_time.avg.ms.rwsem_down_write_slowpath.down_write_killable.__vm_munmap.__x64_sys_munmap
0.09 ± 12% +58.2% 0.15 ± 15% perf-sched.wait_time.avg.ms.rwsem_down_write_slowpath.down_write_killable.vm_mmap_pgoff.ksys_mmap_pgoff
255.38 ± 14% +22.1% 311.71 ± 17% perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_sys_poll
1.00 ±199% -99.9% 0.00 ±200% perf-sched.wait_time.max.ms.preempt_schedule_common._cond_resched.remove_vma.__do_munmap.__vm_munmap
4.99 -36.1% 3.19 ± 36% perf-sched.wait_time.max.ms.rcu_gp_kthread.kthread.ret_from_fork
9869 ± 3% -36.2% 6295 ± 2% perf-stat.i.context-switches
0.00 ± 7% +0.0 0.00 ± 29% perf-stat.i.dTLB-load-miss-rate%
76953 ± 7% +327.4% 328871 ± 29% perf-stat.i.dTLB-load-misses
4152320 -3.0% 4026365 perf-stat.i.iTLB-load-misses
1665297 -2.2% 1628746 perf-stat.i.iTLB-loads
8627 +3.5% 8933 perf-stat.i.instructions-per-iTLB-miss
0.33 ± 3% -11.0% 0.29 ± 6% perf-stat.i.metric.K/sec
87.42 +1.7 89.11 perf-stat.i.node-load-miss-rate%
7507752 -9.2% 6814138 perf-stat.i.node-load-misses
1078418 ± 2% -22.9% 831563 ± 3% perf-stat.i.node-loads
3091445 -8.2% 2838247 perf-stat.i.node-store-misses
0.00 ± 7% +0.0 0.00 ± 29% perf-stat.overall.dTLB-load-miss-rate%
8599 +3.6% 8907 perf-stat.overall.instructions-per-iTLB-miss
87.44 +1.7 89.13 perf-stat.overall.node-load-miss-rate%
43415811 -3.3% 41994695 ± 2% perf-stat.overall.path-length
9895 ± 3% -36.4% 6291 ± 2% perf-stat.ps.context-switches
76756 ± 7% +327.0% 327716 ± 29% perf-stat.ps.dTLB-load-misses
4138410 -3.0% 4012712 perf-stat.ps.iTLB-load-misses
1659653 -2.2% 1623167 perf-stat.ps.iTLB-loads
7483002 -9.2% 6791226 perf-stat.ps.node-load-misses
1074856 ± 2% -22.9% 828780 ± 3% perf-stat.ps.node-loads
3081222 -8.2% 2828732 perf-stat.ps.node-store-misses
335021 ± 2% -27.9% 241715 ± 12% interrupts.CAL:Function_call_interrupts
3662 ± 31% -61.3% 1417 ± 16% interrupts.CPU10.CAL:Function_call_interrupts
4671 ± 32% -65.6% 1607 ± 30% interrupts.CPU12.CAL:Function_call_interrupts
4999 ± 34% -68.1% 1592 ± 43% interrupts.CPU14.CAL:Function_call_interrupts
129.00 ± 30% -46.8% 68.60 ± 34% interrupts.CPU14.RES:Rescheduling_interrupts
4531 ± 49% -58.5% 1881 ± 39% interrupts.CPU15.CAL:Function_call_interrupts
4639 ± 28% -37.6% 2893 ± 2% interrupts.CPU18.NMI:Non-maskable_interrupts
4639 ± 28% -37.6% 2893 ± 2% interrupts.CPU18.PMI:Performance_monitoring_interrupts
6310 ± 49% -68.5% 1988 ± 57% interrupts.CPU21.CAL:Function_call_interrupts
149.40 ± 49% -49.3% 75.80 ± 42% interrupts.CPU21.RES:Rescheduling_interrupts
3592 ± 38% -63.0% 1330 ± 14% interrupts.CPU24.CAL:Function_call_interrupts
5350 ± 21% -30.5% 3720 ± 44% interrupts.CPU24.NMI:Non-maskable_interrupts
5350 ± 21% -30.5% 3720 ± 44% interrupts.CPU24.PMI:Performance_monitoring_interrupts
139.00 ± 27% -33.4% 92.60 ± 26% interrupts.CPU24.RES:Rescheduling_interrupts
3858 ± 42% -53.7% 1785 ± 38% interrupts.CPU26.CAL:Function_call_interrupts
5964 ± 28% -42.4% 3432 ± 55% interrupts.CPU27.NMI:Non-maskable_interrupts
5964 ± 28% -42.4% 3432 ± 55% interrupts.CPU27.PMI:Performance_monitoring_interrupts
3429 ± 37% -57.1% 1470 ± 44% interrupts.CPU28.CAL:Function_call_interrupts
3008 ± 35% -37.6% 1877 ± 38% interrupts.CPU29.CAL:Function_call_interrupts
4684 ± 73% -60.0% 1872 ± 34% interrupts.CPU30.CAL:Function_call_interrupts
4300 ± 46% -54.7% 1949 ± 13% interrupts.CPU43.CAL:Function_call_interrupts
10255 ± 26% -50.0% 5127 ± 29% interrupts.CPU44.CAL:Function_call_interrupts
5800 ± 20% -28.3% 4158 ± 27% interrupts.CPU52.CAL:Function_call_interrupts
4802 ± 19% -31.7% 3279 ± 18% interrupts.CPU58.CAL:Function_call_interrupts
4042 ± 32% -65.6% 1391 ± 41% interrupts.CPU6.CAL:Function_call_interrupts
128.60 ± 31% -52.9% 60.60 ± 38% interrupts.CPU6.RES:Rescheduling_interrupts
4065 ± 20% -37.8% 2530 ± 6% interrupts.CPU63.CAL:Function_call_interrupts
4340 ± 24% -36.2% 2771 ± 11% interrupts.CPU64.CAL:Function_call_interrupts
3983 ± 11% -27.1% 2904 ± 19% interrupts.CPU65.CAL:Function_call_interrupts
3392 ± 25% -55.2% 1518 ± 53% interrupts.CPU7.CAL:Function_call_interrupts
171.80 ± 67% -62.5% 64.40 ± 32% interrupts.CPU7.RES:Rescheduling_interrupts
2942 ± 33% -50.5% 1455 ± 25% interrupts.CPU8.CAL:Function_call_interrupts
7818 -27.3% 5681 ± 31% interrupts.CPU85.NMI:Non-maskable_interrupts
7818 -27.3% 5681 ± 31% interrupts.CPU85.PMI:Performance_monitoring_interrupts
320.80 ± 54% -44.6% 177.80 ± 58% interrupts.CPU87.TLB:TLB_shootdowns
3212 ± 31% -64.8% 1130 ± 36% interrupts.CPU9.CAL:Function_call_interrupts
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.
---
0DAY/LKP+ Test Infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org Intel Corporation
Thanks,
Oliver Sang
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