* [bigeasy-staging:futex_local_v4.5] [futex] 6df37a9175: will-it-scale.per_thread_ops 99.1% regression
@ 2024-12-20 8:38 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-12-20 8:38 UTC (permalink / raw)
To: Sebastian Andrzej Siewior; +Cc: oe-lkp, lkp, oliver.sang
Hello,
kernel test robot noticed a 99.1% regression of will-it-scale.per_thread_ops on:
commit: 6df37a9175b2332651f820dabcf09d958e2838b4 ("futex: Track the futex hash bucket.")
https://git.kernel.org/cgit/linux/kernel/git/bigeasy/staging.git futex_local_v4.5
testcase: will-it-scale
config: x86_64-rhel-9.4
compiler: gcc-12
test machine: 224 threads 4 sockets Intel(R) Xeon(R) Platinum 8380H CPU @ 2.90GHz (Cooper Lake) with 192G memory
parameters:
nr_task: 100%
mode: thread
test: futex3
cpufreq_governor: performance
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 19.3% improvement |
| test machine | 224 threads 4 sockets Intel(R) Xeon(R) Platinum 8380H CPU @ 2.90GHz (Cooper Lake) with 192G memory |
| test parameters | cpufreq_governor=performance |
| | mode=thread |
| | nr_task=100% |
| | test=pthread_mutex5 |
+------------------+----------------------------------------------------------------------------------------------------+
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202412201525.7043e9be-lkp@intel.com
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20241220/202412201525.7043e9be-lkp@intel.com
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-12/performance/x86_64-rhel-9.4/thread/100%/debian-12-x86_64-20240206.cgz/lkp-cpl-4sp2/futex3/will-it-scale
commit:
f9c3465f79 ("futex: Hash only the address for private futexes.")
6df37a9175 ("futex: Track the futex hash bucket.")
f9c3465f79b97231 6df37a9175b2332651f820dabcf
---------------- ---------------------------
%stddev %change %stddev
\ | \
216553 -42.1% 125385 ± 4% cpuidle..usage
0.01 ± 3% +0.0 0.04 ± 2% mpstat.cpu.all.soft%
76.68 +21.1 97.82 mpstat.cpu.all.sys%
22.24 -21.1 1.14 ± 4% mpstat.cpu.all.usr%
21.97 -95.1% 1.07 ± 5% vmstat.cpu.us
2644 ± 2% +33.7% 3534 vmstat.system.cs
264029 +4.5% 275990 ± 2% vmstat.system.in
1.145e+09 -99.1% 10220847 ± 3% will-it-scale.224.threads
5111063 -99.1% 45628 ± 3% will-it-scale.per_thread_ops
1.145e+09 -99.1% 10220847 ± 3% will-it-scale.workload
21.83 ± 19% +567.8% 145.80 ± 27% perf-c2c.DRAM.local
480.67 ± 7% +772.6% 4194 ± 23% perf-c2c.DRAM.remote
708.83 ± 17% +1170.8% 9007 ± 21% perf-c2c.HITM.local
404.83 ± 9% +417.2% 2093 ± 24% perf-c2c.HITM.remote
1113 ± 10% +896.8% 11101 ± 22% perf-c2c.HITM.total
47559 ± 74% +386.5% 231392 ± 40% numa-meminfo.node0.Mapped
2490 ± 10% +27.6% 3179 ± 16% numa-meminfo.node0.PageTables
23012 ±132% +998.7% 252847 ± 27% numa-meminfo.node1.Mapped
22426 ±120% +766.3% 194289 ± 24% numa-meminfo.node2.Mapped
43422 ± 65% +877.3% 424370 ± 14% numa-meminfo.node3.Mapped
2180 ± 10% +100.9% 4381 ± 12% numa-meminfo.node3.PageTables
11997 ± 74% +382.0% 57832 ± 40% numa-vmstat.node0.nr_mapped
622.66 ± 10% +27.6% 794.27 ± 16% numa-vmstat.node0.nr_page_table_pages
5783 ±132% +994.4% 63295 ± 27% numa-vmstat.node1.nr_mapped
5634 ±121% +762.1% 48577 ± 24% numa-vmstat.node2.nr_mapped
10996 ± 65% +863.6% 105959 ± 14% numa-vmstat.node3.nr_mapped
544.94 ± 10% +100.9% 1094 ± 12% numa-vmstat.node3.nr_page_table_pages
1553391 +29.1% 2004812 ± 18% meminfo.Active
1553391 +29.1% 2004812 ± 18% meminfo.Active(anon)
779945 +10.6% 862841 meminfo.AnonPages
137214 +704.0% 1103213 ± 20% meminfo.Mapped
6676542 +25.0% 8348555 ± 4% meminfo.Memused
8696 +42.0% 12344 ± 2% meminfo.PageTables
777002 +47.5% 1145945 ± 31% meminfo.Shmem
388384 +29.0% 501083 ± 18% proc-vmstat.nr_active_anon
194965 +10.6% 215693 proc-vmstat.nr_anon_pages
1070569 +8.6% 1162643 ± 7% proc-vmstat.nr_file_pages
34502 +699.9% 275986 ± 20% proc-vmstat.nr_mapped
2172 +42.0% 3084 ± 2% proc-vmstat.nr_page_table_pages
194308 +47.4% 286383 ± 31% proc-vmstat.nr_shmem
36661 +1.3% 37154 proc-vmstat.nr_slab_reclaimable
88110 +4.0% 91596 proc-vmstat.nr_slab_unreclaimable
388384 +29.0% 501083 ± 18% proc-vmstat.nr_zone_active_anon
55590 ± 9% +107.6% 115430 ± 43% proc-vmstat.numa_hint_faults
14771 ± 16% +190.5% 42918 ± 34% proc-vmstat.numa_hint_faults_local
205921 ± 22% +162.6% 540759 ± 26% proc-vmstat.numa_pte_updates
1444186 -28.0% 1040142 ± 10% proc-vmstat.pgfree
62061 -22.1% 48345 ± 20% proc-vmstat.pgreuse
0.00 ± 3% +1.7e+05% 6.48 perf-stat.i.MPKI
1.67e+11 -98.9% 1.903e+09 ± 3% perf-stat.i.branch-instructions
0.01 ± 4% +0.5 0.56 ± 2% perf-stat.i.branch-miss-rate%
12706268 ± 2% -11.5% 11248669 ± 2% perf-stat.i.branch-misses
15.04 ± 2% +27.8 42.87 perf-stat.i.cache-miss-rate%
1619360 ± 6% +2904.5% 48654422 ± 3% perf-stat.i.cache-misses
12260198 ± 3% +825.7% 1.135e+08 ± 3% perf-stat.i.cache-references
2581 ± 2% +33.2% 3438 perf-stat.i.context-switches
1.24 +9114.1% 113.84 ± 3% perf-stat.i.cpi
7.821e+11 +8.9% 8.52e+11 perf-stat.i.cpu-cycles
301.46 -13.3% 261.32 perf-stat.i.cpu-migrations
665106 ± 7% -97.4% 17524 ± 2% perf-stat.i.cycles-between-cache-misses
6.328e+11 -98.8% 7.598e+09 ± 3% perf-stat.i.instructions
0.81 -98.9% 0.01 ± 3% perf-stat.i.ipc
0.01 ± 63% +214.7% 0.03 ± 51% perf-stat.i.major-faults
0.00 ± 6% +2.5e+05% 6.42 perf-stat.overall.MPKI
0.01 ± 2% +0.6 0.58 ± 2% perf-stat.overall.branch-miss-rate%
12.97 ± 3% +29.9 42.88 perf-stat.overall.cache-miss-rate%
1.24 +8997.7% 112.44 ± 3% perf-stat.overall.cpi
485320 ± 6% -96.4% 17524 ± 2% perf-stat.overall.cycles-between-cache-misses
0.81 -98.9% 0.01 ± 3% perf-stat.overall.ipc
166478 +33.5% 222214 perf-stat.overall.path-length
1.664e+11 -98.9% 1.88e+09 ± 3% perf-stat.ps.branch-instructions
12596385 ± 2% -12.9% 10967444 perf-stat.ps.branch-misses
1612398 ± 6% +2886.3% 48150254 ± 2% perf-stat.ps.cache-misses
12422547 ± 3% +804.1% 1.123e+08 ± 2% perf-stat.ps.cache-references
2570 ± 2% +31.6% 3381 perf-stat.ps.context-switches
7.794e+11 +8.2% 8.432e+11 perf-stat.ps.cpu-cycles
299.35 -14.7% 255.41 ± 2% perf-stat.ps.cpu-migrations
6.306e+11 -98.8% 7.507e+09 ± 3% perf-stat.ps.instructions
0.01 ± 63% +207.1% 0.03 ± 52% perf-stat.ps.major-faults
1.906e+14 -98.8% 2.271e+12 ± 3% perf-stat.total.instructions
38348453 -11.0% 34112278 sched_debug.cfs_rq:/.avg_vruntime.avg
67424249 ± 11% +274.8% 2.527e+08 ± 28% sched_debug.cfs_rq:/.avg_vruntime.max
34251697 ± 2% -37.5% 21423393 ± 14% sched_debug.cfs_rq:/.avg_vruntime.min
2343085 ± 18% +698.5% 18708664 ± 24% sched_debug.cfs_rq:/.avg_vruntime.stddev
0.75 ± 11% -68.0% 0.24 ± 33% sched_debug.cfs_rq:/.h_nr_running.min
0.12 ± 9% +51.1% 0.18 ± 4% sched_debug.cfs_rq:/.h_nr_running.stddev
6929 ±141% +5350.7% 377703 ± 62% sched_debug.cfs_rq:/.left_deadline.avg
1552183 ±141% +5350.7% 84605534 ± 62% sched_debug.cfs_rq:/.left_deadline.max
103477 ±141% +5350.7% 5640312 ± 62% sched_debug.cfs_rq:/.left_deadline.stddev
6929 ±141% +5350.8% 377703 ± 62% sched_debug.cfs_rq:/.left_vruntime.avg
1552173 ±141% +5350.8% 84605475 ± 62% sched_debug.cfs_rq:/.left_vruntime.max
103477 ±141% +5350.8% 5640308 ± 62% sched_debug.cfs_rq:/.left_vruntime.stddev
41599 ±157% +538.3% 265515 ± 58% sched_debug.cfs_rq:/.load.max
3457 ± 10% -68.9% 1074 ± 33% sched_debug.cfs_rq:/.load.min
3040 ±143% +493.8% 18055 ± 57% sched_debug.cfs_rq:/.load.stddev
3.11 ± 10% -64.0% 1.12 ± 31% sched_debug.cfs_rq:/.load_avg.min
38348453 -11.0% 34112279 sched_debug.cfs_rq:/.min_vruntime.avg
67424249 ± 11% +274.8% 2.527e+08 ± 28% sched_debug.cfs_rq:/.min_vruntime.max
34251697 ± 2% -37.5% 21423393 ± 14% sched_debug.cfs_rq:/.min_vruntime.min
2343085 ± 18% +698.5% 18708675 ± 24% sched_debug.cfs_rq:/.min_vruntime.stddev
0.75 ± 11% -68.0% 0.24 ± 33% sched_debug.cfs_rq:/.nr_running.min
0.04 ± 13% +102.3% 0.09 ± 4% sched_debug.cfs_rq:/.nr_running.stddev
170.67 +19.2% 203.52 sched_debug.cfs_rq:/.removed.load_avg.max
6929 ±141% +5350.8% 377703 ± 62% sched_debug.cfs_rq:/.right_vruntime.avg
1552173 ±141% +5350.8% 84605475 ± 62% sched_debug.cfs_rq:/.right_vruntime.max
103477 ±141% +5350.8% 5640308 ± 62% sched_debug.cfs_rq:/.right_vruntime.stddev
1594 ± 6% +24.1% 1979 ± 3% sched_debug.cfs_rq:/.runnable_avg.max
767.22 ± 11% -62.0% 291.88 ± 50% sched_debug.cfs_rq:/.runnable_avg.min
80.26 ± 10% +106.6% 165.79 ± 4% sched_debug.cfs_rq:/.runnable_avg.stddev
659.19 ± 11% -76.7% 153.84 ± 37% sched_debug.cfs_rq:/.util_avg.min
56.72 ± 17% +76.2% 99.95 ± 2% sched_debug.cfs_rq:/.util_avg.stddev
1371 ± 7% +30.4% 1788 ± 3% sched_debug.cfs_rq:/.util_est.max
379.72 ± 68% -90.5% 35.96 ±164% sched_debug.cfs_rq:/.util_est.min
87768 ± 12% +34.5% 118032 ± 6% sched_debug.cpu.avg_idle.stddev
196042 -12.5% 171520 sched_debug.cpu.clock.avg
196077 -11.9% 172787 sched_debug.cpu.clock.max
196002 -13.2% 170197 sched_debug.cpu.clock.min
21.40 ± 9% +3428.4% 755.23 ± 16% sched_debug.cpu.clock.stddev
195166 -12.5% 170715 sched_debug.cpu.clock_task.avg
195357 -11.9% 172182 sched_debug.cpu.clock_task.max
182273 -14.1% 156586 sched_debug.cpu.clock_task.min
879.67 ± 6% +49.3% 1313 ± 10% sched_debug.cpu.clock_task.stddev
9794 -20.3% 7809 ± 9% sched_debug.cpu.curr->pid.max
4128 ± 4% -41.7% 2404 ± 9% sched_debug.cpu.curr->pid.min
544581 ± 6% +17.4% 639606 ± 8% sched_debug.cpu.max_idle_balance_cost.max
3550 ± 66% +188.2% 10231 ± 32% sched_debug.cpu.max_idle_balance_cost.stddev
0.00 ± 33% +1805.0% 0.00 ± 16% sched_debug.cpu.next_balance.stddev
0.11 ± 10% +49.3% 0.17 ± 2% sched_debug.cpu.nr_running.stddev
865.72 ± 2% -30.3% 603.52 ± 2% sched_debug.cpu.nr_switches.min
196003 -13.2% 170178 sched_debug.cpu_clk
195151 -13.2% 169326 sched_debug.ktime
0.00 +284.0% 0.00 ± 12% sched_debug.rt_rq:.rt_nr_running.avg
0.17 +260.0% 0.60 sched_debug.rt_rq:.rt_nr_running.max
0.01 +269.9% 0.04 ± 5% sched_debug.rt_rq:.rt_nr_running.stddev
196817 -13.1% 170992 sched_debug.sched_clk
29.07 -29.1 0.00 perf-profile.calltrace.cycles-pp.clear_bhb_loop.syscall
20.40 -20.4 0.00 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.syscall
7.72 -7.7 0.00 perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
98.13 +0.4 98.53 perf-profile.calltrace.cycles-pp.syscall
0.00 +0.6 0.56 ± 2% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.futex_hash_priv_put.futex_wake.do_futex.__x64_sys_futex
0.00 +0.6 0.59 ± 3% perf-profile.calltrace.cycles-pp.queue_event.ordered_events__queue.process_simple.reader__read_event.perf_session__process_events
0.00 +0.6 0.60 ± 3% perf-profile.calltrace.cycles-pp.ordered_events__queue.process_simple.reader__read_event.perf_session__process_events.record__finish_output
0.00 +0.6 0.60 ± 3% perf-profile.calltrace.cycles-pp.process_simple.reader__read_event.perf_session__process_events.record__finish_output.__cmd_record
0.00 +0.6 0.62 ± 4% perf-profile.calltrace.cycles-pp.__cmd_record
0.00 +0.6 0.62 ± 4% perf-profile.calltrace.cycles-pp.perf_session__process_events.record__finish_output.__cmd_record
0.00 +0.6 0.62 ± 4% perf-profile.calltrace.cycles-pp.reader__read_event.perf_session__process_events.record__finish_output.__cmd_record
0.00 +0.6 0.62 ± 4% perf-profile.calltrace.cycles-pp.record__finish_output.__cmd_record
0.00 +1.5 1.52 ± 2% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.futex_hash.futex_wake.do_futex.__x64_sys_futex
0.00 +34.9 34.87 perf-profile.calltrace.cycles-pp.futex_hash_priv_put.futex_wake.do_futex.__x64_sys_futex.do_syscall_64
5.03 ± 3% +50.6 55.63 perf-profile.calltrace.cycles-pp.futex_hash.futex_wake.do_futex.__x64_sys_futex.do_syscall_64
39.98 +58.2 98.15 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.syscall
36.78 +61.3 98.13 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
21.65 +76.3 97.92 perf-profile.calltrace.cycles-pp.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
17.90 +80.0 97.89 perf-profile.calltrace.cycles-pp.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
13.70 +84.1 97.81 perf-profile.calltrace.cycles-pp.futex_wake.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe
29.26 -29.1 0.20 ± 3% perf-profile.children.cycles-pp.clear_bhb_loop
13.10 -13.0 0.10 ± 4% perf-profile.children.cycles-pp.entry_SYSCALL_64
7.93 -7.8 0.17 ± 8% perf-profile.children.cycles-pp.syscall_exit_to_user_mode
7.78 -7.7 0.06 perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.30 ± 2% -0.1 0.23 ± 6% perf-profile.children.cycles-pp.tick_nohz_handler
98.66 -0.1 98.59 perf-profile.children.cycles-pp.syscall
0.27 ± 3% -0.1 0.21 ± 4% perf-profile.children.cycles-pp.update_process_times
0.06 ± 6% +0.0 0.10 ± 7% perf-profile.children.cycles-pp.task_tick_fair
0.00 +0.1 0.06 ± 6% perf-profile.children.cycles-pp.__handle_mm_fault
0.00 +0.1 0.07 ± 7% perf-profile.children.cycles-pp.do_user_addr_fault
0.00 +0.1 0.07 ± 7% perf-profile.children.cycles-pp.exc_page_fault
0.00 +0.1 0.07 ± 7% perf-profile.children.cycles-pp.handle_mm_fault
0.00 +0.1 0.07 ± 5% perf-profile.children.cycles-pp.asm_exc_page_fault
0.00 +0.1 0.08 ± 23% perf-profile.children.cycles-pp.kthread
0.00 +0.1 0.08 ± 23% perf-profile.children.cycles-pp.ret_from_fork
0.00 +0.1 0.08 ± 23% perf-profile.children.cycles-pp.ret_from_fork_asm
0.00 +0.3 0.26 ± 2% perf-profile.children.cycles-pp.copy_page_from_iter_atomic
0.00 +0.3 0.26 ± 2% perf-profile.children.cycles-pp.rep_movs_alternative
0.02 ±141% +0.4 0.41 ± 2% perf-profile.children.cycles-pp.handle_internal_command
0.02 ±141% +0.4 0.41 ± 2% perf-profile.children.cycles-pp.main
0.02 ±141% +0.4 0.41 ± 2% perf-profile.children.cycles-pp.run_builtin
0.02 ±141% +0.4 0.41 ± 2% perf-profile.children.cycles-pp.cmd_record
0.02 ±141% +0.4 0.41 ± 2% perf-profile.children.cycles-pp.perf_mmap__push
0.02 ±141% +0.4 0.41 ± 2% perf-profile.children.cycles-pp.record__mmap_read_evlist
0.00 +0.4 0.40 ± 2% perf-profile.children.cycles-pp.generic_perform_write
0.00 +0.4 0.40 ± 2% perf-profile.children.cycles-pp.shmem_file_write_iter
0.00 +0.4 0.40 ± 2% perf-profile.children.cycles-pp.record__pushfn
0.00 +0.4 0.40 ± 2% perf-profile.children.cycles-pp.vfs_write
0.00 +0.4 0.40 ± 2% perf-profile.children.cycles-pp.writen
0.00 +0.4 0.40 ± 2% perf-profile.children.cycles-pp.ksys_write
0.00 +0.4 0.41 ± 2% perf-profile.children.cycles-pp.write
0.00 +0.6 0.59 ± 3% perf-profile.children.cycles-pp.queue_event
0.00 +0.6 0.60 ± 3% perf-profile.children.cycles-pp.ordered_events__queue
0.00 +0.6 0.60 ± 3% perf-profile.children.cycles-pp.process_simple
0.00 +0.6 0.62 ± 4% perf-profile.children.cycles-pp.perf_session__process_events
0.00 +0.6 0.62 ± 4% perf-profile.children.cycles-pp.reader__read_event
0.00 +0.6 0.62 ± 4% perf-profile.children.cycles-pp.record__finish_output
0.02 ±141% +1.0 1.03 ± 3% perf-profile.children.cycles-pp.__cmd_record
0.47 ± 4% +1.1 1.57 ± 2% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
0.00 +35.3 35.27 perf-profile.children.cycles-pp.futex_hash_priv_put
4.62 +51.6 56.26 perf-profile.children.cycles-pp.futex_hash
40.50 +58.3 98.77 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
37.13 +61.6 98.73 perf-profile.children.cycles-pp.do_syscall_64
22.04 +75.9 97.92 perf-profile.children.cycles-pp.__x64_sys_futex
18.23 +79.7 97.89 perf-profile.children.cycles-pp.do_futex
14.37 +83.5 97.87 perf-profile.children.cycles-pp.futex_wake
29.09 -28.9 0.20 ± 3% perf-profile.self.cycles-pp.clear_bhb_loop
10.90 -10.8 0.08 ± 7% perf-profile.self.cycles-pp.syscall
7.38 -7.3 0.06 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
6.53 -6.4 0.12 ± 10% perf-profile.self.cycles-pp.syscall_exit_to_user_mode
5.81 -5.8 0.01 ±200% perf-profile.self.cycles-pp.entry_SYSCALL_64
6.63 -0.4 6.26 ± 2% perf-profile.self.cycles-pp.futex_wake
0.00 +0.3 0.25 ± 3% perf-profile.self.cycles-pp.rep_movs_alternative
0.00 +0.6 0.58 ± 3% perf-profile.self.cycles-pp.queue_event
0.00 +35.1 35.10 perf-profile.self.cycles-pp.futex_hash_priv_put
4.10 +51.9 55.98 perf-profile.self.cycles-pp.futex_hash
0.21 ±149% +1579.9% 3.53 ± 2% perf-sched.sch_delay.avg.ms.__cond_resched.__alloc_pages_noprof.alloc_pages_mpol_noprof.folio_alloc_mpol_noprof.vma_alloc_folio_noprof
0.10 ±223% +1414.6% 1.51 ± 49% perf-sched.sch_delay.avg.ms.__cond_resched.__anon_vma_prepare.__vmf_anon_prepare.do_anonymous_page.__handle_mm_fault
0.38 ± 99% +825.2% 3.55 ± 18% perf-sched.sch_delay.avg.ms.__cond_resched.__kmalloc_cache_noprof.vmstat_start.seq_read_iter.proc_reg_read_iter
0.50 ±223% +626.9% 3.62 ± 15% perf-sched.sch_delay.avg.ms.__cond_resched.__tlb_batch_free_encoded_pages.tlb_finish_mmu.exit_mmap.__mmput
0.04 ± 9% +4470.9% 1.68 ±119% perf-sched.sch_delay.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
0.25 ±144% +1158.1% 3.13 ± 13% perf-sched.sch_delay.avg.ms.__cond_resched.down_write.free_pgtables.exit_mmap.__mmput
0.12 ±223% +3404.5% 4.21 ± 18% perf-sched.sch_delay.avg.ms.__cond_resched.exit_mmap.__mmput.exit_mm.do_exit
0.29 ±110% +3467.5% 10.20 ±121% perf-sched.sch_delay.avg.ms.__cond_resched.mutex_lock.pipe_write.vfs_write.ksys_write
0.01 ± 71% +543.0% 0.06 ± 14% perf-sched.sch_delay.avg.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.31 ± 34% +357.5% 1.40 ± 10% perf-sched.sch_delay.avg.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.15 ±220% +2476.6% 3.77 ± 10% perf-sched.sch_delay.avg.ms.__cond_resched.zap_pmd_range.isra.0.unmap_page_range
0.76 ± 53% +526.3% 4.78 ± 25% perf-sched.sch_delay.avg.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.38 ± 45% +475.9% 2.21 ± 11% perf-sched.sch_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.03 ± 19% +29641.2% 9.47 ±187% perf-sched.sch_delay.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.01 ± 14% +1537.8% 0.10 ± 29% perf-sched.sch_delay.avg.ms.irq_thread.kthread.ret_from_fork.ret_from_fork_asm
0.73 ±201% -100.0% 0.00 perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_common_interrupt.[unknown].[unknown]
0.51 ±142% +555.6% 3.33 ± 5% perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_exc_page_fault.[unknown]
1.44 ± 4% +222.9% 4.64 ± 79% perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown].[unknown]
0.02 ± 19% +13135.4% 2.10 ±163% perf-sched.sch_delay.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
0.50 ± 48% +342.7% 2.21 ± 37% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range.do_poll.constprop.0.do_sys_poll
0.00 ± 71% +2091.3% 0.08 ± 34% perf-sched.sch_delay.avg.ms.schedule_timeout.__wait_for_common.__flush_work.__lru_add_drain_all
0.05 ± 9% +13771.3% 6.50 ±175% perf-sched.sch_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.01 ± 7% +1034.2% 0.06 ± 39% perf-sched.sch_delay.avg.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
0.00 ± 10% +487.1% 0.03 ± 4% perf-sched.sch_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.01 ± 24% +2810.7% 0.21 ±152% perf-sched.sch_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.62 ± 7% +487.2% 3.67 ±117% perf-sched.sch_delay.avg.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.53 ± 11% +498.2% 3.17 ± 5% perf-sched.sch_delay.avg.ms.wait_for_partner.fifo_open.do_dentry_open.vfs_open
0.03 ± 45% +34580.8% 8.96 ± 96% perf-sched.sch_delay.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
3.80 ± 11% +1759.6% 70.73 ±182% perf-sched.sch_delay.max.ms.__cond_resched.__alloc_pages_noprof.alloc_pages_mpol_noprof.folio_alloc_mpol_noprof.shmem_alloc_folio
0.21 ±149% +2730.0% 5.94 ± 15% perf-sched.sch_delay.max.ms.__cond_resched.__alloc_pages_noprof.alloc_pages_mpol_noprof.folio_alloc_mpol_noprof.vma_alloc_folio_noprof
0.10 ±223% +3112.9% 3.20 ± 48% perf-sched.sch_delay.max.ms.__cond_resched.__anon_vma_prepare.__vmf_anon_prepare.do_anonymous_page.__handle_mm_fault
0.39 ± 99% +4784.3% 18.89 ±126% perf-sched.sch_delay.max.ms.__cond_resched.__kmalloc_cache_noprof.vmstat_start.seq_read_iter.proc_reg_read_iter
0.50 ±223% +1616.3% 8.55 ± 38% perf-sched.sch_delay.max.ms.__cond_resched.__tlb_batch_free_encoded_pages.tlb_finish_mmu.exit_mmap.__mmput
0.25 ±144% +3022.2% 7.77 ± 16% perf-sched.sch_delay.max.ms.__cond_resched.down_write.free_pgtables.exit_mmap.__mmput
0.12 ±223% +5581.4% 6.83 ± 28% perf-sched.sch_delay.max.ms.__cond_resched.exit_mmap.__mmput.exit_mm.do_exit
4.15 ± 8% +9818.7% 411.53 ±191% perf-sched.sch_delay.max.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
0.29 ±110% +3713.3% 10.90 ±110% perf-sched.sch_delay.max.ms.__cond_resched.mutex_lock.pipe_write.vfs_write.ksys_write
4.00 +46.3% 5.85 ± 35% perf-sched.sch_delay.max.ms.__cond_resched.shmem_inode_acct_blocks.shmem_alloc_and_add_folio.shmem_get_folio_gfp.shmem_write_begin
3.00 ± 19% +80.8% 5.43 ± 24% perf-sched.sch_delay.max.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.15 ±220% +17249.0% 25.39 ±143% perf-sched.sch_delay.max.ms.__cond_resched.zap_pmd_range.isra.0.unmap_page_range
1.84 ± 66% +293.6% 7.24 ± 15% perf-sched.sch_delay.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
1.72 ± 70% +301.6% 6.91 ± 26% perf-sched.sch_delay.max.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.97 ± 4% +2.2e+05% 2114 ±199% perf-sched.sch_delay.max.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.01 ± 15% +2117.8% 0.20 ± 19% perf-sched.sch_delay.max.ms.irq_thread.kthread.ret_from_fork.ret_from_fork_asm
0.74 ±197% -100.0% 0.00 perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_common_interrupt.[unknown].[unknown]
0.88 ±142% +652.7% 6.65 ± 26% perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_exc_page_fault.[unknown]
5.53 ± 38% +7144.0% 400.59 ±182% perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
3.84 ± 54% -87.5% 0.48 ±100% perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown].[unknown]
12.03 ± 35% +21629.8% 2614 ±158% perf-sched.sch_delay.max.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
4.04 ± 2% +624.4% 29.25 ±164% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range.do_poll.constprop.0.do_sys_poll
0.00 ± 71% +2237.4% 0.09 ± 36% perf-sched.sch_delay.max.ms.schedule_timeout.__wait_for_common.__flush_work.__lru_add_drain_all
2.17 ± 55% +42355.2% 921.21 ±188% perf-sched.sch_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.01 ± 85% +2112.1% 0.28 ± 77% perf-sched.sch_delay.max.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
0.04 ±119% +590.5% 0.28 ± 18% perf-sched.sch_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
13.50 ± 35% +22769.7% 3086 ±186% perf-sched.sch_delay.max.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
1.57 ± 56% +272.5% 5.83 ± 24% perf-sched.sch_delay.max.ms.wait_for_partner.fifo_open.do_dentry_open.vfs_open
3.13 ± 24% +1.1e+05% 3404 ±154% perf-sched.sch_delay.max.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
0.43 ± 4% +622.1% 3.08 ±113% perf-sched.total_sch_delay.average.ms
15.19 ± 24% +25981.4% 3962 ±133% perf-sched.total_sch_delay.max.ms
13684 ± 4% +153.1% 34634 ± 57% perf-sched.total_wait_and_delay.count.ms
3700 ± 19% +202.0% 11173 ± 86% perf-sched.total_wait_and_delay.max.ms
3700 ± 19% +202.0% 11173 ± 86% perf-sched.total_wait_time.max.ms
305.70 ± 14% +234.6% 1022 ± 48% perf-sched.wait_and_delay.avg.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.31 ± 34% +745.1% 2.58 ± 10% perf-sched.wait_and_delay.avg.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
2.87 ±173% +1237.0% 38.38 ± 21% perf-sched.wait_and_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.x64_sys_call
1.53 ± 6% +1877.9% 30.28 ±126% perf-sched.wait_and_delay.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
7.33 ± 2% +42.7% 10.46 ± 44% perf-sched.wait_and_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
0.06 ± 21% -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown].[unknown]
1.57 ± 6% +2633.7% 42.82 ± 65% perf-sched.wait_and_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
7.45 ± 4% -44.2% 4.15 ± 3% perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
611.50 +25.9% 770.05 ± 19% perf-sched.wait_and_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
1.70 ± 26% +447.8% 9.33 ± 99% perf-sched.wait_and_delay.avg.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
481.66 ± 3% +45.5% 700.99 ± 20% perf-sched.wait_and_delay.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
6.50 ± 76% +11730.8% 769.00 ± 62% perf-sched.wait_and_delay.count.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
10.17 ± 3% +128.2% 23.20 ± 61% perf-sched.wait_and_delay.count.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
10.00 +96.0% 19.60 ± 39% perf-sched.wait_and_delay.count.irq_thread.kthread.ret_from_fork.ret_from_fork_asm
349.00 ± 10% +131.5% 807.80 ± 46% perf-sched.wait_and_delay.count.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
663.33 ± 3% -67.2% 217.40 ± 82% perf-sched.wait_and_delay.count.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown].[unknown]
396.17 ± 17% -100.0% 0.00 perf-sched.wait_and_delay.count.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown].[unknown]
2006 ± 13% +102.5% 4061 ± 59% perf-sched.wait_and_delay.count.pipe_read.vfs_read.ksys_read.do_syscall_64
661.00 ± 4% +208.1% 2036 ± 41% perf-sched.wait_and_delay.count.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
5269 ± 6% +227.6% 17264 ± 57% perf-sched.wait_and_delay.count.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
360.00 ± 3% +225.1% 1170 ± 60% perf-sched.wait_and_delay.count.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
1965 ± 20% +273.0% 7333 ± 64% perf-sched.wait_and_delay.max.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
3.00 ± 19% +240.5% 10.23 ± 28% perf-sched.wait_and_delay.max.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
11.06 ± 38% +9578.2% 1070 ±132% perf-sched.wait_and_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
7.68 ± 54% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown].[unknown]
1034 ± 3% +649.2% 7751 ±114% perf-sched.wait_and_delay.max.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
16.71 ±124% +13109.3% 2207 ±174% perf-sched.wait_and_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
239.66 ± 8% -92.3% 18.57 ±146% perf-sched.wait_and_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
2993 ± 21% +235.4% 10041 ± 83% perf-sched.wait_and_delay.max.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.21 ±149% +5795.1% 12.38 ± 74% perf-sched.wait_time.avg.ms.__cond_resched.__alloc_pages_noprof.alloc_pages_mpol_noprof.folio_alloc_mpol_noprof.vma_alloc_folio_noprof
0.38 ± 99% +823.1% 3.54 ± 18% perf-sched.wait_time.avg.ms.__cond_resched.__kmalloc_cache_noprof.vmstat_start.seq_read_iter.proc_reg_read_iter
0.50 ±223% +4641.6% 23.62 ±167% perf-sched.wait_time.avg.ms.__cond_resched.__tlb_batch_free_encoded_pages.tlb_finish_mmu.exit_mmap.__mmput
0.25 ±144% +5833.1% 14.77 ±158% perf-sched.wait_time.avg.ms.__cond_resched.down_write.free_pgtables.exit_mmap.__mmput
0.12 ±223% +3404.5% 4.21 ± 18% perf-sched.wait_time.avg.ms.__cond_resched.exit_mmap.__mmput.exit_mm.do_exit
305.69 ± 14% +234.6% 1022 ± 48% perf-sched.wait_time.avg.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.15 ±220% +2360.4% 3.60 ± 5% perf-sched.wait_time.avg.ms.__cond_resched.zap_pmd_range.isra.0.unmap_page_range
2.87 ±173% +1237.0% 38.38 ± 21% perf-sched.wait_time.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.x64_sys_call
1.50 ± 6% +1288.4% 20.82 ± 99% perf-sched.wait_time.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.73 ±201% -100.0% 0.00 perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_common_interrupt.[unknown].[unknown]
0.64 ±142% +403.9% 3.21 ± 4% perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_exc_page_fault.[unknown]
3.67 ± 2% +55.0% 5.68 ± 47% perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
1.44 ± 4% +1293.4% 20.03 ± 36% perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown].[unknown]
2.90 ± 7% -76.2% 0.69 ±122% perf-sched.wait_time.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
1.52 ± 6% +2291.0% 36.32 ± 45% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
7.44 ± 4% -44.6% 4.13 ± 3% perf-sched.wait_time.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
611.49 +25.9% 769.84 ± 19% perf-sched.wait_time.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
1.08 ± 44% +424.7% 5.66 ± 87% perf-sched.wait_time.avg.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.53 ± 11% +488.5% 3.12 ± 8% perf-sched.wait_time.avg.ms.wait_for_partner.fifo_open.do_dentry_open.vfs_open
481.64 ± 3% +43.7% 692.03 ± 20% perf-sched.wait_time.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
3.80 ± 11% +1759.6% 70.73 ±182% perf-sched.wait_time.max.ms.__cond_resched.__alloc_pages_noprof.alloc_pages_mpol_noprof.folio_alloc_mpol_noprof.shmem_alloc_folio
0.21 ±149% +2.9e+05% 608.49 ± 80% perf-sched.wait_time.max.ms.__cond_resched.__alloc_pages_noprof.alloc_pages_mpol_noprof.folio_alloc_mpol_noprof.vma_alloc_folio_noprof
0.39 ± 99% +4784.3% 18.89 ±126% perf-sched.wait_time.max.ms.__cond_resched.__kmalloc_cache_noprof.vmstat_start.seq_read_iter.proc_reg_read_iter
0.50 ±223% +41581.6% 207.64 ±190% perf-sched.wait_time.max.ms.__cond_resched.__tlb_batch_free_encoded_pages.tlb_finish_mmu.exit_mmap.__mmput
0.25 ±144% +82323.0% 205.23 ±193% perf-sched.wait_time.max.ms.__cond_resched.down_write.free_pgtables.exit_mmap.__mmput
0.12 ±223% +5581.4% 6.83 ± 28% perf-sched.wait_time.max.ms.__cond_resched.exit_mmap.__mmput.exit_mm.do_exit
1965 ± 20% +273.0% 7333 ± 64% perf-sched.wait_time.max.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.15 ±220% +17249.0% 25.39 ±143% perf-sched.wait_time.max.ms.__cond_resched.zap_pmd_range.isra.0.unmap_page_range
0.74 ±197% -100.0% 0.00 perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_common_interrupt.[unknown].[unknown]
1.14 ±142% +440.1% 6.17 ± 25% perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_exc_page_fault.[unknown]
5.53 ± 38% +12036.3% 671.14 ±116% perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
9.43 ± 60% +10515.6% 1000 perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown].[unknown]
3.84 ± 54% -87.3% 0.49 ± 97% perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown].[unknown]
1034 ± 3% +572.1% 6953 ±107% perf-sched.wait_time.max.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
4.99 -85.4% 0.73 ±122% perf-sched.wait_time.max.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
16.01 ±130% +8187.9% 1326 ±158% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
239.66 ± 8% -92.3% 18.46 ±147% perf-sched.wait_time.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
2993 ± 21% +235.4% 10041 ± 83% perf-sched.wait_time.max.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
1.57 ± 56% +272.5% 5.83 ± 24% perf-sched.wait_time.max.ms.wait_for_partner.fifo_open.do_dentry_open.vfs_open
***************************************************************************************************
lkp-cpl-4sp2: 224 threads 4 sockets Intel(R) Xeon(R) Platinum 8380H CPU @ 2.90GHz (Cooper Lake) with 192G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-12/performance/x86_64-rhel-9.4/thread/100%/debian-12-x86_64-20240206.cgz/lkp-cpl-4sp2/pthread_mutex5/will-it-scale
commit:
f9c3465f79 ("futex: Hash only the address for private futexes.")
6df37a9175 ("futex: Track the futex hash bucket.")
f9c3465f79b97231 6df37a9175b2332651f820dabcf
---------------- ---------------------------
%stddev %change %stddev
\ | \
249211 ± 5% -12.6% 217791 ± 4% meminfo.Mapped
0.73 -0.1 0.65 ± 2% mpstat.cpu.all.usr%
171009 ± 4% -8.5% 156505 ± 2% vmstat.system.cs
4.397e+08 +182.3% 1.241e+09 ±122% cpuidle..time
11572000 ± 3% +44.7% 16746422 ± 3% cpuidle..usage
2395 ± 2% +20.5% 2886 ± 2% sched_debug.cpu.avg_idle.min
19.17 ± 6% -7.6% 17.72 ± 5% sched_debug.cpu.clock.stddev
117008 ± 3% -7.6% 108083 ± 4% sched_debug.cpu.nr_switches.avg
17533 ± 44% -65.6% 6031 ± 28% numa-vmstat.node2.nr_mapped
12394 ± 42% -56.5% 5385 ± 26% numa-vmstat.node2.nr_slab_reclaimable
531719 ± 69% -98.4% 8326 ±198% numa-vmstat.node2.nr_unevictable
531719 ± 69% -98.4% 8326 ±198% numa-vmstat.node2.nr_zone_unevictable
564.17 ± 27% -40.5% 335.80 ± 30% perf-c2c.DRAM.local
31523 ± 2% -10.1% 28329 ± 3% perf-c2c.DRAM.remote
24225 ± 2% -10.6% 21654 ± 3% perf-c2c.HITM.remote
37087 -9.1% 33705 ± 4% perf-c2c.HITM.total
12683598 +19.3% 15128378 ± 2% will-it-scale.224.threads
0.11 ± 4% +23.5% 0.14 will-it-scale.224.threads_idle
56622 +19.3% 67536 ± 2% will-it-scale.per_thread_ops
12683598 +19.3% 15128378 ± 2% will-it-scale.workload
49577 ± 42% -56.5% 21544 ± 26% numa-meminfo.node2.KReclaimable
69331 ± 43% -65.6% 23847 ± 28% numa-meminfo.node2.Mapped
2778125 ± 52% -73.5% 737515 ± 24% numa-meminfo.node2.MemUsed
49577 ± 42% -56.5% 21544 ± 26% numa-meminfo.node2.SReclaimable
137905 ± 13% -26.0% 102005 ± 6% numa-meminfo.node2.Slab
2126878 ± 69% -98.4% 33306 ±198% numa-meminfo.node2.Unevictable
493659 -2.8% 479977 proc-vmstat.nr_active_anon
197492 -0.8% 195981 proc-vmstat.nr_anon_pages
1173403 -1.0% 1161422 proc-vmstat.nr_file_pages
61995 ± 5% -12.5% 54220 ± 5% proc-vmstat.nr_mapped
297145 -4.1% 284994 proc-vmstat.nr_shmem
493659 -2.8% 479977 proc-vmstat.nr_zone_active_anon
18032 ± 54% +96.1% 35368 ± 26% proc-vmstat.numa_pages_migrated
18032 ± 54% +96.1% 35368 ± 26% proc-vmstat.pgmigrate_success
0.05 ± 12% +20.0% 0.06 ± 11% perf-sched.sch_delay.avg.ms.irq_thread.kthread.ret_from_fork.ret_from_fork_asm
0.08 ± 4% +20.0% 0.10 ± 6% perf-sched.sch_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
7.89 ± 68% -52.1% 3.78 ± 8% perf-sched.sch_delay.max.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
3.78 ± 4% +18.6% 4.49 ± 4% perf-sched.total_wait_and_delay.average.ms
453207 ± 4% -13.2% 393197 ± 4% perf-sched.total_wait_and_delay.count.ms
3.77 ± 4% +18.7% 4.48 ± 4% perf-sched.total_wait_time.average.ms
4.39 -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
1344 -100.0% 0.00 perf-sched.wait_and_delay.count.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
442497 ± 4% -13.9% 381078 ± 4% perf-sched.wait_and_delay.count.futex_wait_queue.__futex_wait.futex_wait.do_futex
1542 ± 6% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
2.33 ± 15% -40.6% 1.38 ± 35% perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
554.50 ±190% -99.3% 3.91 ± 2% perf-sched.wait_time.max.ms.__cond_resched.__alloc_pages_noprof.alloc_pages_mpol_noprof.folio_alloc_mpol_noprof.shmem_alloc_folio
1541 ± 6% -18.3% 1260 ± 10% perf-sched.wait_time.max.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
0.06 ± 76% +931.0% 0.66 ± 77% perf-sched.wait_time.max.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
367.70 ±118% -97.8% 7.94 ±145% perf-sched.wait_time.max.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
1.70 ± 7% +25.1% 2.12 ± 3% perf-stat.i.MPKI
38930792 ± 7% +23.5% 48074667 ± 3% perf-stat.i.cache-misses
69228168 ± 5% +19.5% 82708343 ± 2% perf-stat.i.cache-references
172005 ± 4% -8.4% 157491 ± 2% perf-stat.i.context-switches
295.15 +1.7% 300.20 perf-stat.i.cpu-migrations
21924 ± 7% -21.1% 17292 ± 5% perf-stat.i.cycles-between-cache-misses
0.01 ± 2% -23.4% 0.01 ± 18% perf-stat.i.metric.K/sec
1.69 ± 7% +25.4% 2.12 ± 4% perf-stat.overall.MPKI
56.10 +1.9 58.02 perf-stat.overall.cache-miss-rate%
21862 ± 7% -20.2% 17448 ± 4% perf-stat.overall.cycles-between-cache-misses
546682 -16.5% 456641 ± 2% perf-stat.overall.path-length
38798683 ± 7% +23.5% 47912740 ± 3% perf-stat.ps.cache-misses
69090235 ± 5% +19.5% 82560051 ± 2% perf-stat.ps.cache-references
171454 ± 4% -8.4% 156978 ± 2% perf-stat.ps.context-switches
293.82 +1.6% 298.66 perf-stat.ps.cpu-migrations
58.45 -0.6 57.80 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.futex_wake.do_futex.__x64_sys_futex
58.50 -0.6 57.86 perf-profile.calltrace.cycles-pp._raw_spin_lock.futex_wake.do_futex.__x64_sys_futex.do_syscall_64
58.72 -0.4 58.28 perf-profile.calltrace.cycles-pp.futex_wake.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe
99.36 +0.1 99.45 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
99.36 +0.1 99.46 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
99.32 +0.1 99.42 perf-profile.calltrace.cycles-pp.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe
99.32 +0.1 99.43 perf-profile.calltrace.cycles-pp.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe
40.26 +0.3 40.60 perf-profile.calltrace.cycles-pp._raw_spin_lock.futex_q_lock.futex_wait_setup.__futex_wait.futex_wait
40.25 +0.3 40.59 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.futex_q_lock.futex_wait_setup.__futex_wait
40.35 +0.5 40.84 perf-profile.calltrace.cycles-pp.futex_q_lock.futex_wait_setup.__futex_wait.futex_wait.do_futex
40.58 +0.6 41.14 perf-profile.calltrace.cycles-pp.__futex_wait.futex_wait.do_futex.__x64_sys_futex.do_syscall_64
40.59 +0.6 41.14 perf-profile.calltrace.cycles-pp.futex_wait.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe
40.49 +0.6 41.06 perf-profile.calltrace.cycles-pp.futex_wait_setup.__futex_wait.futex_wait.do_futex.__x64_sys_futex
58.72 -0.4 58.28 perf-profile.children.cycles-pp.futex_wake
98.73 -0.3 98.41 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
98.79 -0.3 98.48 perf-profile.children.cycles-pp._raw_spin_lock
0.37 ± 2% -0.1 0.29 ± 3% perf-profile.children.cycles-pp.pthread_mutex_lock
0.12 ± 3% -0.0 0.09 ± 4% perf-profile.children.cycles-pp.__schedule
0.08 ± 4% -0.0 0.06 perf-profile.children.cycles-pp.schedule
0.09 ± 5% -0.0 0.07 perf-profile.children.cycles-pp.futex_wait_queue
0.09 ± 4% +0.0 0.10 ± 4% perf-profile.children.cycles-pp.cpuidle_idle_call
0.08 ± 6% +0.0 0.09 ± 5% perf-profile.children.cycles-pp.acpi_idle_do_entry
0.08 ± 6% +0.0 0.09 ± 5% perf-profile.children.cycles-pp.acpi_idle_enter
0.08 ± 6% +0.0 0.09 ± 5% perf-profile.children.cycles-pp.acpi_safe_halt
0.08 ± 4% +0.0 0.10 ± 5% perf-profile.children.cycles-pp.cpuidle_enter
0.08 ± 4% +0.0 0.10 ± 5% perf-profile.children.cycles-pp.cpuidle_enter_state
0.06 ± 9% +0.1 0.12 ± 3% perf-profile.children.cycles-pp.futex_q_unlock
99.39 +0.1 99.48 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
99.38 +0.1 99.48 perf-profile.children.cycles-pp.do_syscall_64
99.32 +0.1 99.42 perf-profile.children.cycles-pp.do_futex
99.32 +0.1 99.43 perf-profile.children.cycles-pp.__x64_sys_futex
0.00 +0.2 0.18 ± 2% perf-profile.children.cycles-pp.futex_hash_priv_put
0.02 ±142% +0.2 0.25 ± 8% perf-profile.children.cycles-pp.futex_hash
40.35 +0.5 40.84 perf-profile.children.cycles-pp.futex_q_lock
40.58 +0.6 41.14 perf-profile.children.cycles-pp.__futex_wait
40.59 +0.6 41.14 perf-profile.children.cycles-pp.futex_wait
40.49 +0.6 41.06 perf-profile.children.cycles-pp.futex_wait_setup
98.28 -0.3 97.97 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
0.37 ± 2% -0.1 0.28 ± 3% perf-profile.self.cycles-pp.pthread_mutex_lock
0.12 ± 4% -0.0 0.11 ± 6% perf-profile.self.cycles-pp.futex_wake
0.05 ± 8% +0.1 0.12 ± 3% perf-profile.self.cycles-pp.futex_q_unlock
0.00 +0.2 0.17 ± 2% perf-profile.self.cycles-pp.futex_hash_priv_put
0.02 ±142% +0.2 0.25 ± 8% perf-profile.self.cycles-pp.futex_hash
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.
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https://github.com/intel/lkp-tests/wiki
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