| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <202506032142.4f7b26c9-lkp@intel.com>
Date: Tue, 3 Jun 2025 21:48:19 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Peter Zijlstra <peterz@...radead.org>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, Chris Mason <clm@...a.com>,
<linux-kernel@...r.kernel.org>, <aubrey.li@...ux.intel.com>,
<yu.c.chen@...el.com>, <oliver.sang@...el.com>
Subject: [peterz-queue:sched/core] [sched/deadline] 7bca60ce65:
will-it-scale.per_process_ops 63.0% regression
Hello,
kernel test robot noticed a 63.0% regression of will-it-scale.per_process_ops on:
commit: 7bca60ce656978b01caafc4e2285272ae9631953 ("sched/deadline: Less agressive dl_server handling")
https://git.kernel.org/cgit/linux/kernel/git/peterz/queue.git sched/core
testcase: will-it-scale
config: x86_64-rhel-9.4
compiler: gcc-12
test machine: 256 threads 2 sockets Intel(R) Xeon(R) 6767P CPU @ 2.4GHz (Granite Rapids) with 256G memory
parameters:
nr_task: 100%
mode: process
test: pwrite2
cpufreq_governor: performance
In addition to that, the commit also has significant impact on the following tests:
+------------------+---------------------------------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.min-nanosleep.ops_per_sec 8.0% improvement |
| test machine | 192 threads 2 sockets Intel(R) Xeon(R) 6740E CPU @ 2.4GHz (Sierra Forest) with 256G memory |
| test parameters | cpufreq_governor=performance |
| | nr_threads=100% |
| | test=min-nanosleep |
| | testtime=60s |
+------------------+---------------------------------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.rawudp.packets_32_bytes_received_per_sec 45.9% improvement |
| test machine | 192 threads 2 sockets Intel(R) Xeon(R) 6740E CPU @ 2.4GHz (Sierra Forest) with 256G memory |
| test parameters | cpufreq_governor=performance |
| | nr_threads=100% |
| | test=rawudp |
| | testtime=60s |
+------------------+---------------------------------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.membarrier.ops_per_sec 18.2% improvement |
| test machine | 192 threads 2 sockets Intel(R) Xeon(R) 6740E CPU @ 2.4GHz (Sierra Forest) with 256G memory |
| test parameters | cpufreq_governor=performance |
| | nr_threads=100% |
| | test=membarrier |
| | testtime=60s |
+------------------+---------------------------------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.timer.ops_per_sec 265.1% improvement |
| test machine | 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480CTDX (Sapphire Rapids) with 512G memory |
| test parameters | cpufreq_governor=performance |
| | nr_threads=100% |
| | test=timer |
| | testtime=60s |
+------------------+---------------------------------------------------------------------------------------------+
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@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202506032142.4f7b26c9-lkp@intel.com
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250603/202506032142.4f7b26c9-lkp@intel.com
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-12/performance/x86_64-rhel-9.4/process/100%/debian-12-x86_64-20240206.cgz/lkp-gnr-2sp3/pwrite2/will-it-scale
commit:
032e1003ad ("sched: Make clangd usable")
7bca60ce65 ("sched/deadline: Less agressive dl_server handling")
032e1003ad358e4c 7bca60ce656978b01caafc4e228
---------------- ---------------------------
%stddev %change %stddev
\ | \
62171 +33.9% 83247 ± 4% uptime.idle
2.143e+09 +986.3% 2.328e+10 ± 16% cpuidle..time
5220618 ± 13% +300.1% 20887937 ± 10% cpuidle..usage
9915050 ± 10% -17.6% 8167082 ± 6% meminfo.DirectMap2M
1378641 -15.6% 1164078 ± 4% meminfo.Shmem
22480 ± 5% -17.7% 18493 ± 2% perf-c2c.DRAM.remote
14405 ± 7% -19.3% 11619 perf-c2c.HITM.remote
32559 ± 5% -14.0% 28016 ± 2% perf-c2c.HITM.total
522414 -63.0% 193394 ± 13% will-it-scale.256.processes
2.23 ± 2% +1197.8% 28.98 ± 16% will-it-scale.256.processes_idle
2040 -63.0% 754.83 ± 13% will-it-scale.per_process_ops
522414 -63.0% 193394 ± 13% will-it-scale.workload
2.73 ± 2% +26.6 29.35 ± 16% mpstat.cpu.all.idle%
0.48 +0.7 1.13 ± 6% mpstat.cpu.all.irq%
0.01 ± 5% +0.1 0.09 ± 19% mpstat.cpu.all.soft%
96.71 -27.4 69.35 ± 6% mpstat.cpu.all.sys%
99.21 -26.1% 73.30 ± 8% mpstat.max_utilization_pct
3.15 ± 4% +843.3% 29.74 ± 16% vmstat.cpu.id
96.77 -27.5% 70.18 ± 6% vmstat.cpu.sy
226.34 -20.5% 179.86 ± 6% vmstat.procs.r
44868 ± 12% +164.0% 118461 ± 14% vmstat.system.cs
338462 -9.1% 307666 ± 6% vmstat.system.in
554522 -9.6% 501067 ± 2% proc-vmstat.nr_inactive_anon
1227403 -4.4% 1173704 proc-vmstat.nr_mapped
127426 -1.3% 125816 proc-vmstat.nr_slab_reclaimable
344630 -15.6% 290933 ± 4% proc-vmstat.nr_writeback_temp
554522 -9.6% 501067 ± 2% proc-vmstat.nr_zone_active_anon
10697 ± 27% +133.3% 24951 ± 15% proc-vmstat.numa_hint_faults
1539573 -5.9% 1449401 proc-vmstat.numa_interleave
1914686 -3.5% 1847747 proc-vmstat.pgalloc_dma32
4.307e+10 -25.7% 3.2e+10 ± 5% perf-stat.i.branch-instructions
0.02 +0.0 0.03 ± 5% perf-stat.i.branch-miss-rate%
37.57 ± 2% -4.4 33.13 ± 2% perf-stat.i.cache-miss-rate%
24711200 ± 2% -24.3% 18713324 ± 8% perf-stat.i.cache-misses
69291497 ± 5% -16.8% 57684629 ± 8% perf-stat.i.cache-references
45155 ± 12% +165.4% 119829 ± 14% perf-stat.i.context-switches
4.16 -2.8% 4.04 perf-stat.i.cpi
8.973e+11 -27.7% 6.483e+11 ± 6% perf-stat.i.cpu-cycles
2.153e+11 -25.7% 1.599e+11 ± 5% perf-stat.i.instructions
0.24 +2.9% 0.25 perf-stat.i.ipc
0.01 +0.0 0.02 ± 7% perf-stat.overall.branch-miss-rate%
35.74 ± 4% -3.9 31.80 ± 3% perf-stat.overall.cache-miss-rate%
4.17 -2.7% 4.05 perf-stat.overall.cpi
0.24 +2.8% 0.25 perf-stat.overall.ipc
1.242e+08 +103.6% 2.529e+08 ± 11% perf-stat.overall.path-length
4.292e+10 -25.7% 3.191e+10 ± 5% perf-stat.ps.branch-instructions
24658370 ± 2% -24.0% 18732132 ± 8% perf-stat.ps.cache-misses
69159431 ± 5% -14.7% 59026367 ± 9% perf-stat.ps.cache-references
44956 ± 12% +164.5% 118893 ± 14% perf-stat.ps.context-switches
8.943e+11 -27.7% 6.466e+11 ± 6% perf-stat.ps.cpu-cycles
2.146e+11 -25.7% 1.594e+11 ± 5% perf-stat.ps.instructions
6.488e+13 -25.6% 4.825e+13 ± 5% perf-stat.total.instructions
36962481 -46.0% 19945596 ± 15% sched_debug.cfs_rq:/.avg_vruntime.avg
37099616 -24.3% 28080467 ± 8% sched_debug.cfs_rq:/.avg_vruntime.max
32455889 ± 4% -87.4% 4074413 ± 13% sched_debug.cfs_rq:/.avg_vruntime.min
320613 ± 30% +3264.0% 10785304 ± 5% sched_debug.cfs_rq:/.avg_vruntime.stddev
0.77 ± 2% -22.7% 0.60 ± 7% sched_debug.cfs_rq:/.h_nr_queued.avg
1.81 ± 6% -38.5% 1.11 ± 16% sched_debug.cfs_rq:/.h_nr_queued.max
0.25 ± 14% +57.4% 0.40 ± 8% sched_debug.cfs_rq:/.h_nr_queued.stddev
0.77 ± 2% -22.7% 0.60 ± 7% sched_debug.cfs_rq:/.h_nr_runnable.avg
1.81 ± 6% -43.1% 1.03 ± 6% sched_debug.cfs_rq:/.h_nr_runnable.max
0.25 ± 14% +57.6% 0.40 ± 8% sched_debug.cfs_rq:/.h_nr_runnable.stddev
1.67 ± 14% -80.0% 0.33 ± 40% sched_debug.cfs_rq:/.load_avg.min
36962481 -46.0% 19945596 ± 15% sched_debug.cfs_rq:/.min_vruntime.avg
37099616 -24.3% 28080467 ± 8% sched_debug.cfs_rq:/.min_vruntime.max
32455889 ± 4% -87.4% 4074413 ± 13% sched_debug.cfs_rq:/.min_vruntime.min
320613 ± 30% +3264.0% 10785304 ± 5% sched_debug.cfs_rq:/.min_vruntime.stddev
0.77 ± 2% -22.3% 0.60 ± 7% sched_debug.cfs_rq:/.nr_queued.avg
0.24 ± 13% +67.1% 0.40 ± 8% sched_debug.cfs_rq:/.nr_queued.stddev
781.09 -25.1% 584.71 ± 8% sched_debug.cfs_rq:/.runnable_avg.avg
1446 ± 9% -28.5% 1033 ± 6% sched_debug.cfs_rq:/.runnable_avg.max
419.36 ± 12% -83.6% 68.78 ± 39% sched_debug.cfs_rq:/.runnable_avg.min
100.55 ± 4% +238.4% 340.26 ± 7% sched_debug.cfs_rq:/.runnable_avg.stddev
779.02 -25.0% 584.31 ± 9% sched_debug.cfs_rq:/.util_avg.avg
1232 ± 7% -18.4% 1005 ± 2% sched_debug.cfs_rq:/.util_avg.max
382.89 ± 18% -83.2% 64.39 ± 40% sched_debug.cfs_rq:/.util_avg.min
94.04 ± 4% +261.5% 339.97 ± 7% sched_debug.cfs_rq:/.util_avg.stddev
736.25 ± 2% -25.7% 547.37 ± 9% sched_debug.cfs_rq:/.util_est.avg
1379 ± 13% -28.6% 984.69 ± 2% sched_debug.cfs_rq:/.util_est.max
224.52 ± 14% +73.9% 390.37 ± 7% sched_debug.cfs_rq:/.util_est.stddev
711444 ± 6% +28.6% 914604 sched_debug.cpu.avg_idle.avg
325251 ± 3% -30.9% 224817 ± 7% sched_debug.cpu.avg_idle.stddev
483.08 +228.2% 1585 ± 30% sched_debug.cpu.clock_task.stddev
4766 ± 2% -22.4% 3697 ± 7% sched_debug.cpu.curr->pid.avg
8228 ± 8% +18.1% 9717 sched_debug.cpu.curr->pid.max
1453 ± 13% +69.5% 2464 ± 8% sched_debug.cpu.curr->pid.stddev
0.00 ± 6% +17.8% 0.00 ± 9% sched_debug.cpu.next_balance.stddev
0.77 ± 2% -23.1% 0.59 ± 7% sched_debug.cpu.nr_running.avg
1.78 ± 8% -37.5% 1.11 ± 16% sched_debug.cpu.nr_running.max
0.25 ± 13% +57.6% 0.40 ± 8% sched_debug.cpu.nr_running.stddev
27430 ± 11% +154.7% 69851 ± 14% sched_debug.cpu.nr_switches.avg
12269 ± 6% -87.3% 1561 ± 10% sched_debug.cpu.nr_switches.min
17965 ± 43% +441.4% 97256 ± 24% sched_debug.cpu.nr_switches.stddev
0.07 ± 30% +248.0% 0.25 ± 19% sched_debug.cpu.nr_uninterruptible.avg
0.02 ±104% -100.0% 0.00 perf-sched.sch_delay.avg.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.folio_alloc_mpol_noprof.shmem_alloc_folio
0.09 ± 8% +28.4% 0.11 ± 3% perf-sched.sch_delay.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
0.07 ±169% -100.0% 0.00 perf-sched.sch_delay.avg.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
0.01 ± 22% -100.0% 0.00 perf-sched.sch_delay.avg.ms.__cond_resched.dput.__fput.__x64_sys_close.do_syscall_64
0.00 ± 19% +288.9% 0.01 ± 27% perf-sched.sch_delay.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.__x64_sys_pwrite64
0.07 ± 51% -97.7% 0.00 ±223% perf-sched.sch_delay.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
0.03 ± 85% -100.0% 0.00 perf-sched.sch_delay.avg.ms.__cond_resched.shmem_inode_acct_blocks.shmem_alloc_and_add_folio.shmem_get_folio_gfp.shmem_write_begin
0.19 ± 17% -96.5% 0.01 ± 10% perf-sched.sch_delay.avg.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.02 ±139% -100.0% 0.00 perf-sched.sch_delay.avg.ms.__cond_resched.zap_pte_range.zap_pmd_range.isra.0
1.09 ± 33% -99.1% 0.01 ± 26% perf-sched.sch_delay.avg.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.04 ± 43% -82.8% 0.01 ± 12% perf-sched.sch_delay.avg.ms.anon_pipe_read.fifo_pipe_read.vfs_read.ksys_read
0.02 ± 74% -84.6% 0.00 ± 11% perf-sched.sch_delay.avg.ms.anon_pipe_read.vfs_read.ksys_read.do_syscall_64
0.10 ± 42% -90.3% 0.01 ± 10% perf-sched.sch_delay.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.02 ± 75% -100.0% 0.00 perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_exc_page_fault.[unknown].[unknown]
0.01 ± 48% -100.0% 0.00 perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown]
0.03 ±168% -100.0% 0.00 perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown].[unknown]
0.01 ± 17% -100.0% 0.00 perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown]
0.66 ± 5% -90.0% 0.07 ± 68% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_poll
0.21 ± 30% -95.7% 0.01 ± 49% perf-sched.sch_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.02 ± 18% -76.4% 0.01 ± 13% perf-sched.sch_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.07 ± 61% -90.4% 0.01 ± 15% perf-sched.sch_delay.avg.ms.wait_for_partner.fifo_open.do_dentry_open.vfs_open
0.01 ± 16% +24449.4% 3.31 ±220% perf-sched.sch_delay.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
1.01 ±139% -100.0% 0.00 perf-sched.sch_delay.max.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.folio_alloc_mpol_noprof.shmem_alloc_folio
0.36 ±203% -100.0% 0.00 perf-sched.sch_delay.max.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
0.02 ± 26% -100.0% 0.00 perf-sched.sch_delay.max.ms.__cond_resched.dput.__fput.__x64_sys_close.do_syscall_64
0.01 ± 35% +216.3% 0.02 ± 97% perf-sched.sch_delay.max.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.__x64_sys_pwrite64
3.59 ± 7% -99.9% 0.00 ±223% perf-sched.sch_delay.max.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
1.52 ±100% -100.0% 0.00 perf-sched.sch_delay.max.ms.__cond_resched.shmem_inode_acct_blocks.shmem_alloc_and_add_folio.shmem_get_folio_gfp.shmem_write_begin
2.48 ± 19% -99.6% 0.01 ± 20% perf-sched.sch_delay.max.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.13 ±201% -100.0% 0.00 perf-sched.sch_delay.max.ms.__cond_resched.zap_pte_range.zap_pmd_range.isra.0
2.41 ± 44% -99.4% 0.02 ± 29% perf-sched.sch_delay.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
3.35 ± 23% -99.1% 0.03 ± 31% perf-sched.sch_delay.max.ms.anon_pipe_read.fifo_pipe_read.vfs_read.ksys_read
2.82 ± 26% -58.6% 1.17 ± 39% perf-sched.sch_delay.max.ms.anon_pipe_read.vfs_read.ksys_read.do_syscall_64
2.37 ± 33% -98.3% 0.04 ± 46% perf-sched.sch_delay.max.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.05 ± 84% -100.0% 0.00 perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_exc_page_fault.[unknown].[unknown]
0.15 ± 84% -100.0% 0.00 perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown]
0.44 ±194% -100.0% 0.00 perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown].[unknown]
0.02 ± 42% -100.0% 0.00 perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown]
0.13 ± 61% -94.3% 0.01 ±135% perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown].[unknown]
3.64 ± 5% -76.5% 0.86 ± 43% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_poll
3.32 ± 18% -94.3% 0.19 ±194% perf-sched.sch_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
2.84 ± 12% -98.5% 0.04 ± 15% perf-sched.sch_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
2.37 ± 48% -98.9% 0.03 ± 48% perf-sched.sch_delay.max.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
1.58 ± 61% -99.0% 0.02 ± 7% perf-sched.sch_delay.max.ms.wait_for_partner.fifo_open.do_dentry_open.vfs_open
14.39 ± 8% -41.5% 8.42 ± 9% perf-sched.total_wait_and_delay.average.ms
110674 ± 7% +111.8% 234429 ± 8% perf-sched.total_wait_and_delay.count.ms
4196 ± 4% -17.8% 3448 ± 12% perf-sched.total_wait_and_delay.max.ms
14.36 ± 8% -41.5% 8.40 ± 9% perf-sched.total_wait_time.average.ms
4196 ± 4% -17.8% 3448 ± 12% perf-sched.total_wait_time.max.ms
103.13 ± 33% +97.9% 204.04 ± 2% perf-sched.wait_and_delay.avg.ms.anon_pipe_read.fifo_pipe_read.vfs_read.ksys_read
40.08 ± 58% -51.0% 19.63 ± 2% perf-sched.wait_and_delay.avg.ms.anon_pipe_read.vfs_read.ksys_read.do_syscall_64
0.36 ± 15% +403.1% 1.83 ± 14% perf-sched.wait_and_delay.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.shmem_file_write_iter
655.89 ± 2% -10.9% 584.12 ± 5% perf-sched.wait_and_delay.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
403.33 ± 64% -99.3% 2.83 ± 89% perf-sched.wait_and_delay.count.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
439.00 ± 38% -55.0% 197.67 ± 2% perf-sched.wait_and_delay.count.anon_pipe_read.fifo_pipe_read.vfs_read.ksys_read
871.17 ± 39% +63.0% 1419 ± 2% perf-sched.wait_and_delay.count.anon_pipe_read.vfs_read.ksys_read.do_syscall_64
102542 ± 7% +121.9% 227581 ± 9% perf-sched.wait_and_delay.count.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.shmem_file_write_iter
653.50 ± 2% -72.0% 183.17 ±141% perf-sched.wait_and_delay.count.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
1944 +13.7% 2211 ± 3% perf-sched.wait_and_delay.count.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
439.50 ± 4% -35.6% 283.00 ± 12% perf-sched.wait_and_delay.count.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
1.19 ±145% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.folio_alloc_mpol_noprof.shmem_alloc_folio
0.01 ± 65% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
0.01 ± 22% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.dput.__fput.__x64_sys_close.do_syscall_64
2.52 ± 28% +115.7% 5.45 ± 12% perf-sched.wait_time.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.__x64_sys_pwrite64
4.99 ±132% +713.8% 40.64 ± 70% perf-sched.wait_time.avg.ms.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
83.35 ±223% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.zap_pte_range.zap_pmd_range.isra.0
103.08 ± 33% +97.9% 204.03 ± 2% perf-sched.wait_time.avg.ms.anon_pipe_read.fifo_pipe_read.vfs_read.ksys_read
40.06 ± 58% -51.0% 19.63 ± 2% perf-sched.wait_time.avg.ms.anon_pipe_read.vfs_read.ksys_read.do_syscall_64
0.10 ±128% -100.0% 0.00 perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_exc_page_fault.[unknown].[unknown]
0.05 ± 85% -100.0% 0.00 perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown]
0.04 ±125% -100.0% 0.00 perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown].[unknown]
0.01 ± 48% -100.0% 0.00 perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown]
1.55 ± 39% +184.1% 4.40 ± 27% perf-sched.wait_time.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
0.34 ± 16% +431.0% 1.82 ± 15% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.shmem_file_write_iter
0.93 ± 17% -30.3% 0.65 ± 4% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
7.37 ± 2% +13.2% 8.34 ± 4% perf-sched.wait_time.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
655.87 ± 2% -11.4% 580.80 ± 4% perf-sched.wait_time.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
80.44 ±140% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.folio_alloc_mpol_noprof.shmem_alloc_folio
0.02 ± 58% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
0.02 ± 26% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.dput.__fput.__x64_sys_close.do_syscall_64
174.94 ±211% -95.6% 7.61 ± 10% perf-sched.wait_time.max.ms.__cond_resched.shmem_get_folio_gfp.shmem_write_begin.generic_perform_write.shmem_file_write_iter
166.80 ±223% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.zap_pte_range.zap_pmd_range.isra.0
0.28 ±133% -100.0% 0.00 perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_exc_page_fault.[unknown].[unknown]
0.82 ± 97% -100.0% 0.00 perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown]
0.70 ±120% -100.0% 0.00 perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown].[unknown]
0.05 ±110% -100.0% 0.00 perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown]
334.66 ±141% -99.9% 0.21 ±220% perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown].[unknown]
9.25 ±103% -71.0% 2.68 ± 9% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
98.80 -1.8 97.02 perf-profile.calltrace.cycles-pp.osq_lock.rwsem_down_write_slowpath.down_write.shmem_file_write_iter.vfs_write
99.20 -1.0 98.24 perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.down_write.shmem_file_write_iter.vfs_write.__x64_sys_pwrite64
99.22 -0.9 98.29 perf-profile.calltrace.cycles-pp.down_write.shmem_file_write_iter.vfs_write.__x64_sys_pwrite64.do_syscall_64
99.59 -0.6 99.02 perf-profile.calltrace.cycles-pp.shmem_file_write_iter.vfs_write.__x64_sys_pwrite64.do_syscall_64.entry_SYSCALL_64_after_hwframe
99.60 -0.6 99.03 perf-profile.calltrace.cycles-pp.__x64_sys_pwrite64.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_pwrite
99.60 -0.6 99.03 perf-profile.calltrace.cycles-pp.vfs_write.__x64_sys_pwrite64.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_pwrite
99.65 -0.5 99.12 perf-profile.calltrace.cycles-pp.__libc_pwrite
99.64 -0.5 99.12 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_pwrite
99.64 -0.5 99.12 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__libc_pwrite
0.51 +0.9 1.43 ± 6% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.osq_lock.rwsem_down_write_slowpath.down_write.shmem_file_write_iter
0.00 +1.2 1.15 ± 6% perf-profile.calltrace.cycles-pp.update_process_times.tick_nohz_handler.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt
0.00 +1.2 1.20 ± 6% perf-profile.calltrace.cycles-pp.tick_nohz_handler.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt
0.00 +1.2 1.21 ± 6% perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
0.00 +1.4 1.38 ± 6% perf-profile.calltrace.cycles-pp.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.osq_lock
0.00 +1.4 1.38 ± 6% perf-profile.calltrace.cycles-pp.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.osq_lock.rwsem_down_write_slowpath
0.00 +1.4 1.41 ± 6% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.osq_lock.rwsem_down_write_slowpath.down_write
98.82 -1.8 97.04 perf-profile.children.cycles-pp.osq_lock
99.20 -1.0 98.24 perf-profile.children.cycles-pp.rwsem_down_write_slowpath
99.23 -0.9 98.29 perf-profile.children.cycles-pp.down_write
99.60 -0.6 99.03 perf-profile.children.cycles-pp.__x64_sys_pwrite64
99.66 -0.5 99.12 perf-profile.children.cycles-pp.__libc_pwrite
99.70 -0.5 99.20 perf-profile.children.cycles-pp.shmem_file_write_iter
99.71 -0.5 99.22 perf-profile.children.cycles-pp.vfs_write
99.78 -0.4 99.33 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
99.77 -0.4 99.33 perf-profile.children.cycles-pp.do_syscall_64
0.02 ±141% +0.0 0.06 ± 9% perf-profile.children.cycles-pp.shmem_get_folio_gfp
0.00 +0.1 0.06 ± 9% perf-profile.children.cycles-pp.update_rq_clock_task
0.00 +0.1 0.06 ± 8% perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.00 +0.1 0.06 ± 9% perf-profile.children.cycles-pp.wake_q_add
0.05 +0.1 0.12 ± 18% perf-profile.children.cycles-pp.shmem_write_end
0.00 +0.1 0.06 ± 17% perf-profile.children.cycles-pp.sched_ttwu_pending
0.20 ± 4% +0.1 0.27 ± 10% perf-profile.children.cycles-pp.copy_page_from_iter_atomic
0.10 ± 13% +0.1 0.17 ± 19% perf-profile.children.cycles-pp.perf_mmap__read_head
0.00 +0.1 0.07 ± 18% perf-profile.children.cycles-pp.idle_cpu
0.06 ± 6% +0.1 0.13 ± 6% perf-profile.children.cycles-pp.clockevents_program_event
0.09 ± 12% +0.1 0.17 ± 18% perf-profile.children.cycles-pp.ring_buffer_read_head
0.00 +0.1 0.08 ± 8% perf-profile.children.cycles-pp.raw_spin_rq_lock_nested
0.00 +0.1 0.08 ± 8% perf-profile.children.cycles-pp._raw_spin_lock
0.00 +0.1 0.08 ± 13% perf-profile.children.cycles-pp.__flush_smp_call_function_queue
0.00 +0.1 0.09 ± 12% perf-profile.children.cycles-pp.__sysvec_call_function_single
0.00 +0.1 0.09 ± 12% perf-profile.children.cycles-pp.kick_ilb
0.06 +0.1 0.15 ± 3% perf-profile.children.cycles-pp.get_jiffies_update
0.06 +0.1 0.15 ± 4% perf-profile.children.cycles-pp.tmigr_requires_handle_remote
0.00 +0.1 0.10 ± 19% perf-profile.children.cycles-pp.folio_unlock
0.05 +0.1 0.15 ± 5% perf-profile.children.cycles-pp.ktime_get
0.00 +0.1 0.10 ± 7% perf-profile.children.cycles-pp.update_curr
0.00 +0.1 0.11 ± 26% perf-profile.children.cycles-pp._nohz_idle_balance
0.23 ± 3% +0.1 0.36 ± 7% perf-profile.children.cycles-pp.rwsem_spin_on_owner
0.00 +0.1 0.12 ± 4% perf-profile.children.cycles-pp.update_load_avg
0.00 +0.1 0.13 ± 14% perf-profile.children.cycles-pp.try_to_wake_up
0.12 ± 6% +0.1 0.25 ± 10% perf-profile.children.cycles-pp.update_cfs_group
0.00 +0.1 0.13 ± 22% perf-profile.children.cycles-pp.handle_softirqs
0.00 +0.1 0.14 ± 22% perf-profile.children.cycles-pp.__irq_exit_rcu
0.00 +0.1 0.14 ± 14% perf-profile.children.cycles-pp.wake_up_q
0.34 ± 5% +0.2 0.49 ± 6% perf-profile.children.cycles-pp.generic_perform_write
0.03 ±100% +0.2 0.20 ± 14% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
0.00 +0.2 0.21 ± 15% perf-profile.children.cycles-pp.sysvec_call_function_single
0.00 +0.2 0.21 ± 31% perf-profile.children.cycles-pp.update_sg_lb_stats
0.00 +0.2 0.22 ± 30% perf-profile.children.cycles-pp.sched_balance_find_src_group
0.00 +0.2 0.22 ± 30% perf-profile.children.cycles-pp.update_sd_lb_stats
0.00 +0.2 0.23 ± 31% perf-profile.children.cycles-pp.sched_balance_newidle
0.00 +0.2 0.24 ± 15% perf-profile.children.cycles-pp.asm_sysvec_call_function_single
0.00 +0.2 0.24 ± 32% perf-profile.children.cycles-pp.sched_balance_rq
0.00 +0.2 0.24 ± 28% perf-profile.children.cycles-pp.pick_next_task_fair
0.00 +0.3 0.26 ± 27% perf-profile.children.cycles-pp.__pick_next_task
0.08 ± 11% +0.3 0.34 ± 10% perf-profile.children.cycles-pp.rwsem_wake
0.19 ± 4% +0.3 0.45 ± 7% perf-profile.children.cycles-pp.task_tick_fair
0.11 ± 8% +0.3 0.40 ± 11% perf-profile.children.cycles-pp.up_write
0.00 +0.3 0.30 ± 20% perf-profile.children.cycles-pp.schedule_preempt_disabled
0.00 +0.3 0.30 ± 15% perf-profile.children.cycles-pp.nohz_balancer_kick
0.00 +0.3 0.31 ± 20% perf-profile.children.cycles-pp.schedule
0.00 +0.3 0.32 ± 14% perf-profile.children.cycles-pp.acpi_idle_do_entry
0.00 +0.3 0.32 ± 14% perf-profile.children.cycles-pp.acpi_idle_enter
0.00 +0.3 0.32 ± 14% perf-profile.children.cycles-pp.acpi_safe_halt
0.00 +0.3 0.32 ± 14% perf-profile.children.cycles-pp.pv_native_safe_halt
0.00 +0.3 0.32 ± 14% perf-profile.children.cycles-pp.cpuidle_enter
0.00 +0.3 0.32 ± 14% perf-profile.children.cycles-pp.cpuidle_enter_state
0.24 ± 3% +0.3 0.57 ± 7% perf-profile.children.cycles-pp.sched_tick
0.01 ±223% +0.3 0.35 ± 16% perf-profile.children.cycles-pp.__schedule
0.00 +0.4 0.35 ± 15% perf-profile.children.cycles-pp.cpuidle_idle_call
0.00 +0.4 0.36 ± 18% perf-profile.children.cycles-pp.start_secondary
0.00 +0.4 0.37 ± 24% perf-profile.children.cycles-pp._raw_spin_lock_irq
0.00 +0.4 0.41 ± 14% perf-profile.children.cycles-pp.common_startup_64
0.00 +0.4 0.41 ± 14% perf-profile.children.cycles-pp.cpu_startup_entry
0.00 +0.4 0.41 ± 14% perf-profile.children.cycles-pp.do_idle
0.00 +0.4 0.45 ± 24% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
0.36 ± 2% +0.8 1.20 ± 6% perf-profile.children.cycles-pp.update_process_times
0.38 +0.9 1.26 ± 6% perf-profile.children.cycles-pp.tick_nohz_handler
0.38 +0.9 1.27 ± 6% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.48 +1.0 1.46 ± 5% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
0.48 +1.0 1.46 ± 5% perf-profile.children.cycles-pp.hrtimer_interrupt
0.50 +1.0 1.51 ± 5% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
0.52 +1.0 1.55 ± 5% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
98.32 -2.7 95.61 perf-profile.self.cycles-pp.osq_lock
0.02 ± 99% +0.0 0.07 ± 10% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.06 ± 7% +0.1 0.12 ± 21% perf-profile.self.cycles-pp.rwsem_down_write_slowpath
0.00 +0.1 0.05 ± 8% perf-profile.self.cycles-pp.up_write
0.00 +0.1 0.06 ± 9% perf-profile.self.cycles-pp.wake_q_add
0.20 ± 4% +0.1 0.26 ± 10% perf-profile.self.cycles-pp.copy_page_from_iter_atomic
0.00 +0.1 0.06 ± 17% perf-profile.self.cycles-pp._raw_spin_lock
0.00 +0.1 0.07 ± 10% perf-profile.self.cycles-pp.update_load_avg
0.00 +0.1 0.07 ± 18% perf-profile.self.cycles-pp.idle_cpu
0.09 ± 12% +0.1 0.16 ± 18% perf-profile.self.cycles-pp.ring_buffer_read_head
0.06 +0.1 0.15 ± 3% perf-profile.self.cycles-pp.get_jiffies_update
0.05 +0.1 0.15 ± 7% perf-profile.self.cycles-pp.ktime_get
0.00 +0.1 0.10 ± 19% perf-profile.self.cycles-pp.folio_unlock
0.23 ± 3% +0.1 0.35 ± 6% perf-profile.self.cycles-pp.rwsem_spin_on_owner
0.12 ± 6% +0.1 0.25 ± 10% perf-profile.self.cycles-pp.update_cfs_group
0.00 +0.2 0.16 ± 31% perf-profile.self.cycles-pp.update_sg_lb_stats
0.00 +0.2 0.25 ± 13% perf-profile.self.cycles-pp.nohz_balancer_kick
0.00 +0.4 0.45 ± 24% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
***************************************************************************************************
lkp-srf-2sp2: 192 threads 2 sockets Intel(R) Xeon(R) 6740E CPU @ 2.4GHz (Sierra Forest) with 256G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
gcc-12/performance/x86_64-rhel-9.4/100%/debian-12-x86_64-20240206.cgz/lkp-srf-2sp2/min-nanosleep/stress-ng/60s
commit:
032e1003ad ("sched: Make clangd usable")
7bca60ce65 ("sched/deadline: Less agressive dl_server handling")
032e1003ad358e4c 7bca60ce656978b01caafc4e228
---------------- ---------------------------
%stddev %change %stddev
\ | \
51713 ± 91% +171.0% 140151 ± 27% numa-numastat.node1.other_node
51713 ± 91% +171.0% 140151 ± 27% numa-vmstat.node1.numa_local
7.78 ± 7% -6.8 0.96 ± 2% mpstat.cpu.all.irq%
0.52 ± 4% -0.2 0.33 ± 3% mpstat.cpu.all.sys%
11.42 ± 19% -60.5% 4.51 ± 4% mpstat.max_utilization_pct
206334 +8.0% 222876 stress-ng.min-nanosleep.ops
3437 +8.0% 3713 stress-ng.min-nanosleep.ops_per_sec
72619226 +8.0% 78450215 stress-ng.time.voluntary_context_switches
91.34 +7.6% 98.24 vmstat.cpu.id
2300297 +8.0% 2485443 vmstat.system.cs
1296371 +5.1% 1362893 vmstat.system.in
1165012 +4.4% 1216559 proc-vmstat.nr_inactive_anon
1878335 +2.8% 1930467 proc-vmstat.nr_mapped
3264015 +1.6% 3315154 proc-vmstat.nr_unaccepted
990621 +5.3% 1042760 proc-vmstat.nr_writeback_temp
1165012 +4.4% 1216559 proc-vmstat.nr_zone_active_anon
1911876 +3.8% 1984414 proc-vmstat.numa_interleave
2154719 +3.6% 2232864 proc-vmstat.pgalloc_dma32
903.88 ± 11% -30.3% 629.56 ± 14% sched_debug.cfs_rq:/.avg_vruntime.min
6336 ± 29% -59.2% 2583 ± 8% sched_debug.cfs_rq:/.left_deadline.max
555.30 ± 26% -52.9% 261.73 ± 14% sched_debug.cfs_rq:/.left_deadline.stddev
6284 ± 30% -59.0% 2579 ± 8% sched_debug.cfs_rq:/.left_vruntime.max
551.08 ± 26% -52.6% 261.08 ± 14% sched_debug.cfs_rq:/.left_vruntime.stddev
187380 ± 5% +35.3% 253537 ± 5% sched_debug.cfs_rq:/.load.max
903.88 ± 11% -30.3% 629.56 ± 14% sched_debug.cfs_rq:/.min_vruntime.min
6284 ± 30% -59.0% 2579 ± 8% sched_debug.cfs_rq:/.right_vruntime.max
551.08 ± 26% -52.6% 261.08 ± 14% sched_debug.cfs_rq:/.right_vruntime.stddev
12.39 ± 4% +26.9% 15.72 ± 7% sched_debug.cpu.clock.stddev
192.90 ± 18% -29.5% 136.07 ± 8% sched_debug.cpu.curr->pid.avg
891.74 ± 8% -16.2% 746.94 ± 3% sched_debug.cpu.curr->pid.stddev
438984 +34.6% 590692 ± 2% sched_debug.cpu.nr_switches.max
180298 ± 11% -85.3% 26562 ± 99% sched_debug.cpu.nr_switches.min
34604 ± 7% +291.7% 135541 ± 12% sched_debug.cpu.nr_switches.stddev
0.01 ± 7% +30.1% 0.02 ± 13% perf-sched.sch_delay.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
0.01 ± 11% +43.2% 0.01 ± 12% perf-sched.sch_delay.avg.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.01 ± 11% +30.0% 0.01 ± 8% perf-sched.sch_delay.avg.ms.anon_pipe_read.fifo_pipe_read.vfs_read.ksys_read
0.02 ± 4% +16.5% 0.03 ± 6% perf-sched.sch_delay.avg.ms.anon_pipe_read.vfs_read.ksys_read.do_syscall_64
0.01 -70.0% 0.00 perf-sched.sch_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.01 ± 3% +23.1% 0.01 ± 3% perf-sched.sch_delay.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.19 ± 50% +92.7% 0.38 ± 12% perf-sched.sch_delay.max.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
3.21 ± 73% -64.9% 1.13 ± 27% perf-sched.sch_delay.max.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.07 ± 87% -73.1% 0.02 ± 27% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.05 ± 31% -64.7% 0.02 ± 11% perf-sched.sch_delay.max.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
0.09 ± 35% -76.9% 0.02 ± 11% perf-sched.sch_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.01 -70.0% 0.00 perf-sched.total_sch_delay.average.ms
0.07 ±223% +563.7% 0.47 ± 7% perf-sched.wait_and_delay.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.67 ± 3% +16.3% 0.78 ± 7% perf-sched.wait_and_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.28 ±223% +575.7% 1.86 ± 13% perf-sched.wait_and_delay.max.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.39 ± 3% +17.1% 0.45 ± 7% perf-sched.wait_time.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.66 ± 3% +16.4% 0.77 ± 7% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.56 ± 2% -23.9% 0.43 ± 3% perf-stat.i.MPKI
5.319e+09 -26.4% 3.914e+09 perf-stat.i.branch-instructions
0.91 -0.0 0.87 perf-stat.i.branch-miss-rate%
45430893 -29.7% 31944159 perf-stat.i.branch-misses
6.57 ± 2% +13.0 19.54 ± 5% perf-stat.i.cache-miss-rate%
15264617 ± 2% -33.7% 10123277 ± 3% perf-stat.i.cache-misses
2.363e+08 ± 5% -81.5% 43729498 ± 5% perf-stat.i.cache-references
2384996 +8.0% 2575726 perf-stat.i.context-switches
3.93 ± 5% -62.2% 1.49 perf-stat.i.cpi
9.365e+10 ± 5% -70.8% 2.737e+10 perf-stat.i.cpu-cycles
8978 ± 11% +187.1% 25778 ± 15% perf-stat.i.cpu-migrations
7934 ± 9% -36.7% 5019 ± 4% perf-stat.i.cycles-between-cache-misses
2.57e+10 -23.8% 1.958e+10 perf-stat.i.instructions
0.29 ± 4% +140.6% 0.69 perf-stat.i.ipc
12.42 +8.0% 13.42 perf-stat.i.metric.K/sec
0.59 ± 2% -12.9% 0.52 ± 3% perf-stat.overall.MPKI
0.85 -0.0 0.82 perf-stat.overall.branch-miss-rate%
6.47 ± 2% +16.8 23.23 ± 6% perf-stat.overall.cache-miss-rate%
3.64 ± 5% -61.6% 1.40 perf-stat.overall.cpi
6142 ± 7% -56.0% 2703 ± 2% perf-stat.overall.cycles-between-cache-misses
0.28 ± 5% +160.0% 0.72 perf-stat.overall.ipc
5.234e+09 -26.4% 3.853e+09 perf-stat.ps.branch-instructions
44685648 -29.7% 31428779 perf-stat.ps.branch-misses
15022399 ± 2% -33.6% 9973785 ± 3% perf-stat.ps.cache-misses
2.325e+08 ± 5% -81.5% 43045648 ± 5% perf-stat.ps.cache-references
2346125 +8.0% 2533751 perf-stat.ps.context-switches
9.212e+10 ± 5% -70.8% 2.693e+10 perf-stat.ps.cpu-cycles
8832 ± 11% +187.1% 25360 ± 15% perf-stat.ps.cpu-migrations
2.529e+10 -23.8% 1.927e+10 perf-stat.ps.instructions
1.554e+12 -23.8% 1.184e+12 perf-stat.total.instructions
***************************************************************************************************
lkp-srf-2sp3: 192 threads 2 sockets Intel(R) Xeon(R) 6740E CPU @ 2.4GHz (Sierra Forest) with 256G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
gcc-12/performance/x86_64-rhel-9.4/100%/debian-12-x86_64-20240206.cgz/lkp-srf-2sp3/rawudp/stress-ng/60s
commit:
032e1003ad ("sched: Make clangd usable")
7bca60ce65 ("sched/deadline: Less agressive dl_server handling")
032e1003ad358e4c 7bca60ce656978b01caafc4e228
---------------- ---------------------------
%stddev %change %stddev
\ | \
4.053e+08 ± 8% +72.3% 6.985e+08 ± 4% cpuidle..time
252110 ± 14% +346.5% 1125793 ± 11% cpuidle..usage
2.86 ± 7% +2.1 4.94 ± 5% mpstat.cpu.all.idle%
0.42 +0.1 0.53 ± 2% mpstat.cpu.all.usr%
384.45 -12.9% 335.02 vmstat.procs.r
31579 ± 10% +161.6% 82622 ± 9% vmstat.system.cs
454840 +3.5% 470902 vmstat.system.in
8193567 ± 7% -37.3% 5137179 ± 6% numa-numastat.node0.local_node
8333499 ± 7% -37.5% 5207944 ± 6% numa-numastat.node0.numa_hit
9576611 ± 2% -48.1% 4974997 ± 6% numa-numastat.node1.local_node
9634622 ± 2% -47.1% 5100815 ± 7% numa-numastat.node1.numa_hit
1328402 +17.4% 1559668 ± 2% meminfo.Active
1328402 +17.4% 1559668 ± 2% meminfo.Active(anon)
415239 ± 3% +16.7% 484410 ± 6% meminfo.Mapped
2919547 ± 3% -23.4% 2236770 ± 3% meminfo.SUnreclaim
610696 ± 3% +38.5% 846062 ± 4% meminfo.Shmem
3132101 ± 2% -22.0% 2443796 ± 3% meminfo.Slab
2494509 +46.3% 3650414 stress-ng.rawudp.ops
41563 +46.3% 60826 stress-ng.rawudp.ops_per_sec
215.09 +45.9% 313.72 stress-ng.rawudp.packets_32_bytes_received_per_sec
871151 ± 6% +47.8% 1287573 ± 5% stress-ng.time.involuntary_context_switches
5443 ± 3% +7.4% 5848 stress-ng.time.percent_of_cpu_this_job_got
3259 ± 3% +7.2% 3493 stress-ng.time.system_time
24.68 +40.0% 34.56 stress-ng.time.user_time
751066 ± 17% +184.8% 2139221 ± 11% stress-ng.time.voluntary_context_switches
103510 ± 4% +18.6% 122788 ± 5% proc-vmstat.nr_anon_pages
332513 +17.4% 390211 ± 2% proc-vmstat.nr_inactive_anon
1040924 +5.6% 1099375 proc-vmstat.nr_mapped
721178 ± 2% -20.5% 573139 ± 3% proc-vmstat.nr_slab_reclaimable
10829041 ± 3% -33.7% 7181747 ± 2% proc-vmstat.nr_unaccepted
52896 -1.5% 52098 proc-vmstat.nr_unevictable
153210 ± 3% +38.1% 211658 ± 4% proc-vmstat.nr_writeback_temp
332513 +17.4% 390211 ± 2% proc-vmstat.nr_zone_active_anon
17772587 ± 4% -43.1% 10106636 ± 3% proc-vmstat.numa_interleave
73014310 ± 4% -44.5% 40530405 ± 3% proc-vmstat.pgalloc_dma32
72586921 ± 4% -45.4% 39615004 ± 3% proc-vmstat.pgskip_device
2270969 ± 6% -18.3% 1855414 ± 4% sched_debug.cfs_rq:/.avg_vruntime.min
162743 ± 22% +38.0% 224614 ± 7% sched_debug.cfs_rq:/.avg_vruntime.stddev
2270969 ± 6% -18.3% 1855421 ± 4% sched_debug.cfs_rq:/.min_vruntime.min
162752 ± 22% +38.0% 224615 ± 7% sched_debug.cfs_rq:/.min_vruntime.stddev
1299 ± 4% -14.8% 1107 ± 6% sched_debug.cfs_rq:/.runnable_avg.avg
1092 ± 12% -17.7% 899.04 ± 6% sched_debug.cfs_rq:/.runnable_avg.stddev
1370 ± 6% +21.9% 1671 ± 10% sched_debug.cfs_rq:/.util_avg.max
204.56 ± 8% +33.1% 272.19 ± 12% sched_debug.cfs_rq:/.util_avg.stddev
765.31 ± 3% +80.8% 1383 ± 2% sched_debug.cpu.clock_task.stddev
6433 ± 8% +126.2% 14552 ± 9% sched_debug.cpu.nr_switches.avg
4046 ± 11% +128.8% 9257 ± 8% sched_debug.cpu.nr_switches.min
0.00 ± 44% +3130.0% 0.14 ± 17% sched_debug.cpu.nr_uninterruptible.avg
11.24 ± 27% +76.6% 19.85 ± 22% sched_debug.cpu.nr_uninterruptible.stddev
227050 ± 51% +234.8% 760066 ± 40% numa-meminfo.node0.Active
227050 ± 51% +234.8% 760066 ± 40% numa-meminfo.node0.Active(anon)
1349743 ±119% +142.7% 3276163 ± 40% numa-meminfo.node0.FilePages
39511 ± 97% +664.4% 302031 ± 33% numa-meminfo.node0.Mapped
3998073 ± 42% +50.4% 6015073 ± 20% numa-meminfo.node0.MemUsed
11816 ± 14% +132.4% 27462 ± 25% numa-meminfo.node0.PageTables
1392016 ± 2% -15.0% 1182833 ± 4% numa-meminfo.node0.SUnreclaim
64403 ± 46% +497.6% 384896 ± 36% numa-meminfo.node0.Shmem
1486559 ± 4% -12.2% 1305586 ± 3% numa-meminfo.node0.Slab
20595 ± 4% -14.0% 17717 ± 8% numa-meminfo.node1.KernelStack
5849357 ± 28% -39.9% 3518264 ± 35% numa-meminfo.node1.MemUsed
31576 ± 6% -52.6% 14979 ± 47% numa-meminfo.node1.PageTables
1435745 -22.6% 1111726 ± 2% numa-meminfo.node1.SUnreclaim
1551910 ± 2% -22.8% 1197513 ± 3% numa-meminfo.node1.Slab
9918 ± 99% +656.9% 75075 ± 34% numa-vmstat.node0.nr_anon_pages
56806 ± 51% +234.2% 189858 ± 40% numa-vmstat.node0.nr_inactive_anon
2948 ± 14% +132.1% 6841 ± 25% numa-vmstat.node0.nr_kernel_stack
337527 ±119% +142.6% 818901 ± 40% numa-vmstat.node0.nr_mapped
360490 ± 4% -17.1% 298949 ± 4% numa-vmstat.node0.nr_slab_reclaimable
5016234 ± 10% -20.8% 3973477 ± 8% numa-vmstat.node0.nr_unaccepted
16192 ± 46% +493.4% 96084 ± 36% numa-vmstat.node0.nr_writeback_temp
56806 ± 51% +234.2% 189858 ± 40% numa-vmstat.node0.nr_zone_active_anon
8193068 ± 7% -37.3% 5138236 ± 6% numa-vmstat.node0.numa_interleave
20586 ± 4% -13.9% 17725 ± 8% numa-vmstat.node1.nr_foll_pin_released
7871 ± 6% -52.3% 3752 ± 48% numa-vmstat.node1.nr_kernel_stack
374773 ± 3% -25.1% 280890 ± 4% numa-vmstat.node1.nr_slab_reclaimable
5818856 ± 8% -44.5% 3228232 ± 13% numa-vmstat.node1.nr_unaccepted
9575821 ± 2% -48.1% 4973900 ± 6% numa-vmstat.node1.numa_interleave
5.63 -12.7% 4.92 perf-stat.i.MPKI
1.919e+10 -5.6% 1.812e+10 perf-stat.i.branch-instructions
0.62 -0.0 0.60 perf-stat.i.branch-miss-rate%
1.161e+08 -7.6% 1.073e+08 perf-stat.i.branch-misses
40.35 -0.6 39.71 perf-stat.i.cache-miss-rate%
5.201e+08 -18.2% 4.253e+08 perf-stat.i.cache-misses
1.286e+09 -16.8% 1.07e+09 perf-stat.i.cache-references
32886 ± 9% +162.1% 86182 ± 9% perf-stat.i.context-switches
6.63 +3.4% 6.85 perf-stat.i.cpi
6.117e+11 -3.1% 5.928e+11 perf-stat.i.cpu-cycles
6685 ± 12% +84.8% 12353 ± 9% perf-stat.i.cpu-migrations
1177 +18.4% 1394 perf-stat.i.cycles-between-cache-misses
9.179e+10 -6.1% 8.623e+10 perf-stat.i.instructions
0.15 -3.5% 0.15 perf-stat.i.ipc
5.67 -12.9% 4.94 perf-stat.overall.MPKI
0.60 -0.0 0.59 perf-stat.overall.branch-miss-rate%
40.46 -0.7 39.79 perf-stat.overall.cache-miss-rate%
6.67 +3.1% 6.88 perf-stat.overall.cpi
1176 +18.4% 1393 perf-stat.overall.cycles-between-cache-misses
0.15 -3.0% 0.15 perf-stat.overall.ipc
1.85e+10 -4.9% 1.76e+10 perf-stat.ps.branch-instructions
1.114e+08 -6.8% 1.038e+08 perf-stat.ps.branch-misses
5.02e+08 -17.6% 4.137e+08 perf-stat.ps.cache-misses
1.241e+09 -16.2% 1.039e+09 perf-stat.ps.cache-references
30883 ± 10% +167.1% 82500 ± 10% perf-stat.ps.context-switches
5.905e+11 -2.4% 5.761e+11 perf-stat.ps.cpu-cycles
6173 ± 14% +87.6% 11579 ± 10% perf-stat.ps.cpu-migrations
8.851e+10 -5.4% 8.375e+10 perf-stat.ps.instructions
5.395e+12 -5.3% 5.111e+12 perf-stat.total.instructions
5.60 ± 67% -57.9% 2.36 ± 38% perf-sched.sch_delay.avg.ms.__cond_resched.__dentry_kill.dput.__fput.__x64_sys_close
10.76 ± 40% -68.5% 3.39 ± 15% perf-sched.sch_delay.avg.ms.__cond_resched.__mutex_lock.constprop.0.ip_ra_control
8.89 ± 10% -54.3% 4.07 ± 5% perf-sched.sch_delay.avg.ms.__cond_resched.dput.__fput.__x64_sys_close.do_syscall_64
10.27 ± 7% -73.1% 2.77 ± 12% perf-sched.sch_delay.avg.ms.__cond_resched.kmem_cache_alloc_lru_noprof.__d_alloc.d_alloc_pseudo.alloc_file_pseudo
7.75 ± 34% -69.3% 2.38 ± 59% perf-sched.sch_delay.avg.ms.__cond_resched.kmem_cache_alloc_lru_noprof.sock_alloc_inode.alloc_inode.sock_alloc
7.36 ± 12% -38.8% 4.50 ± 14% perf-sched.sch_delay.avg.ms.__cond_resched.kmem_cache_alloc_node_noprof.__alloc_skb.alloc_skb_with_frags.sock_alloc_send_pskb
5.29 ± 42% -47.0% 2.80 ± 26% perf-sched.sch_delay.avg.ms.__cond_resched.kmem_cache_alloc_noprof.alloc_empty_file.alloc_file_pseudo.sock_alloc_file
6.19 ± 16% -53.2% 2.90 ± 45% perf-sched.sch_delay.avg.ms.__cond_resched.kmem_cache_alloc_noprof.security_inode_alloc.inode_init_always_gfp.alloc_inode
6.07 ± 28% -61.4% 2.34 ± 30% perf-sched.sch_delay.avg.ms.__cond_resched.kmem_cache_alloc_noprof.sk_prot_alloc.sk_alloc.inet_create
8.97 ± 14% -71.1% 2.59 ± 17% perf-sched.sch_delay.avg.ms.__cond_resched.lock_sock_nested.raw_destroy.sk_common_release.inet_release
0.86 ± 15% +25.0% 1.08 ± 13% perf-sched.sch_delay.avg.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
4.92 ± 32% -60.9% 1.92 ± 48% perf-sched.sch_delay.avg.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.10 ± 56% +1195.4% 1.28 ±112% perf-sched.sch_delay.avg.ms.anon_pipe_read.fifo_pipe_read.vfs_read.ksys_read
25.42 ± 76% -82.0% 4.57 ±142% perf-sched.sch_delay.avg.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
0.03 ±170% +3613.4% 1.24 ±193% perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_exc_page_fault.[unknown].[unknown]
17.92 ± 7% -68.9% 5.58 ± 27% perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
16.30 ± 41% -76.5% 3.83 ± 43% perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown].[unknown]
9.61 ± 16% -78.2% 2.09 ± 11% perf-sched.sch_delay.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.ip_ra_control
4.46 ± 13% -83.6% 0.73 ± 16% perf-sched.sch_delay.avg.ms.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_datagram.skb_recv_datagram
0.67 ± 12% -56.4% 0.29 ± 46% perf-sched.sch_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
13.88 ± 7% -58.1% 5.82 ± 9% perf-sched.sch_delay.avg.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
66.14 ± 27% -57.2% 28.29 ± 57% perf-sched.sch_delay.max.ms.__cond_resched.__dentry_kill.dput.__fput.__x64_sys_close
217.80 ± 20% -48.9% 111.31 ± 31% perf-sched.sch_delay.max.ms.__cond_resched.kmem_cache_alloc_lru_noprof.__d_alloc.d_alloc_pseudo.alloc_file_pseudo
54.66 ± 37% -48.5% 28.14 ± 29% perf-sched.sch_delay.max.ms.__cond_resched.kmem_cache_alloc_noprof.alloc_empty_file.alloc_file_pseudo.sock_alloc_file
23.20 ± 42% +73.8% 40.32 ± 23% perf-sched.sch_delay.max.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
36.10 ± 62% +1009.7% 400.61 ±115% perf-sched.sch_delay.max.ms.anon_pipe_read.fifo_pipe_read.vfs_read.ksys_read
25.42 ± 76% -81.9% 4.60 ±141% perf-sched.sch_delay.max.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
0.06 ±191% +2498.0% 1.53 ±150% perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_exc_page_fault.[unknown].[unknown]
638.81 ± 23% -39.7% 384.97 ± 23% perf-sched.sch_delay.max.ms.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_datagram.skb_recv_datagram
8.50 ± 10% -76.9% 1.96 ± 16% perf-sched.total_sch_delay.average.ms
35.01 ± 9% -71.0% 10.14 ± 11% perf-sched.total_wait_and_delay.average.ms
142342 ± 10% +220.0% 455497 ± 9% perf-sched.total_wait_and_delay.count.ms
3405 ± 14% -36.7% 2156 ± 8% perf-sched.total_wait_and_delay.max.ms
26.51 ± 9% -69.1% 8.18 ± 10% perf-sched.total_wait_time.average.ms
3405 ± 14% -41.4% 1996 ± 15% perf-sched.total_wait_time.max.ms
17.80 ± 10% -36.8% 11.24 ± 2% perf-sched.wait_and_delay.avg.ms.__cond_resched.dput.__fput.__x64_sys_close.do_syscall_64
435.74 ± 73% -93.6% 27.69 ± 28% perf-sched.wait_and_delay.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
20.60 ± 7% -92.9% 1.46 ±223% perf-sched.wait_and_delay.avg.ms.__cond_resched.kmem_cache_alloc_lru_noprof.__d_alloc.d_alloc_pseudo.alloc_file_pseudo
60.91 ± 8% -35.7% 39.14 ± 7% perf-sched.wait_and_delay.avg.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
44.07 ± 24% +92.4% 84.81 ± 41% perf-sched.wait_and_delay.avg.ms.anon_pipe_read.fifo_pipe_read.vfs_read.ksys_read
481.12 ± 7% +21.5% 584.73 ± 4% perf-sched.wait_and_delay.avg.ms.anon_pipe_read.vfs_read.ksys_read.do_syscall_64
5.54 ±223% +476.8% 31.97 ± 10% perf-sched.wait_and_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.x64_sys_call
249.16 ± 23% -44.8% 137.52 ± 14% perf-sched.wait_and_delay.avg.ms.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_poll
9.50 ± 12% -82.9% 1.63 ± 15% perf-sched.wait_and_delay.avg.ms.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_datagram.skb_recv_datagram
5.87 ± 10% -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
157.39 ± 7% -63.8% 57.02 ± 8% perf-sched.wait_and_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
28.10 ± 7% -51.3% 13.68 ± 8% perf-sched.wait_and_delay.avg.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
3937 ± 13% -39.0% 2400 ± 7% perf-sched.wait_and_delay.count.__cond_resched.dput.__fput.__x64_sys_close.do_syscall_64
11.83 ± 83% +484.5% 69.17 ± 46% perf-sched.wait_and_delay.count.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
2951 ± 11% -92.5% 222.00 ±223% perf-sched.wait_and_delay.count.__cond_resched.kmem_cache_alloc_lru_noprof.__d_alloc.d_alloc_pseudo.alloc_file_pseudo
794.33 ± 11% +144.0% 1938 ± 14% perf-sched.wait_and_delay.count.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
2.50 ±223% +2246.7% 58.67 ± 12% perf-sched.wait_and_delay.count.__cond_resched.task_work_run.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
959.17 ± 18% -45.3% 524.33 ± 37% perf-sched.wait_and_delay.count.anon_pipe_read.fifo_pipe_read.vfs_read.ksys_read
58.67 ± 5% -21.0% 46.33 ± 6% perf-sched.wait_and_delay.count.anon_pipe_read.vfs_read.ksys_read.do_syscall_64
54.00 ± 24% +73.1% 93.50 ± 12% perf-sched.wait_and_delay.count.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_poll
57079 ± 17% +442.4% 309621 ± 11% perf-sched.wait_and_delay.count.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_datagram.skb_recv_datagram
1010 ± 7% -100.0% 0.00 perf-sched.wait_and_delay.count.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
9873 ± 9% +188.3% 28469 ± 7% perf-sched.wait_and_delay.count.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
61865 ± 5% +66.2% 102833 ± 6% perf-sched.wait_and_delay.count.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
435.61 ± 20% -85.0% 65.18 ±223% perf-sched.wait_and_delay.max.ms.__cond_resched.kmem_cache_alloc_lru_noprof.__d_alloc.d_alloc_pseudo.alloc_file_pseudo
34.85 ±223% +1078.1% 410.53 ± 65% perf-sched.wait_and_delay.max.ms.__cond_resched.task_work_run.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
1208 ± 17% -36.0% 774.17 ± 23% perf-sched.wait_and_delay.max.ms.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_datagram.skb_recv_datagram
212.55 ±158% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
1841 ± 9% -16.0% 1547 ± 9% perf-sched.wait_and_delay.max.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
26.10 ± 61% -58.6% 10.80 ± 23% perf-sched.wait_time.avg.ms.__cond_resched.__wait_for_common.stop_two_cpus.migrate_swap.task_numa_migrate
418.96 ± 75% -94.6% 22.51 ± 31% perf-sched.wait_time.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
10.33 ± 7% -40.1% 6.18 ± 3% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc_lru_noprof.__d_alloc.d_alloc_pseudo.alloc_file_pseudo
6.19 ± 16% -43.3% 3.51 ± 26% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc_noprof.security_inode_alloc.inode_init_always_gfp.alloc_inode
10.11 ± 25% +333.1% 43.78 ± 15% perf-sched.wait_time.avg.ms.__cond_resched.lock_sock_nested.raw_destroy.sk_common_release.inet_release
60.05 ± 8% -36.6% 38.06 ± 7% perf-sched.wait_time.avg.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
5.18 ± 91% +184.3% 14.71 ± 42% perf-sched.wait_time.avg.ms.__cond_resched.task_work_run.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
43.97 ± 24% +90.0% 83.54 ± 41% perf-sched.wait_time.avg.ms.anon_pipe_read.fifo_pipe_read.vfs_read.ksys_read
479.10 ± 7% +20.8% 578.54 ± 4% perf-sched.wait_time.avg.ms.anon_pipe_read.vfs_read.ksys_read.do_syscall_64
4.37 ± 27% -53.2% 2.04 ± 33% perf-sched.wait_time.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
18.92 ± 6% -67.6% 6.13 ± 23% perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
1.93 ± 62% +557.9% 12.73 ± 53% perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown].[unknown]
244.40 ± 23% -46.0% 131.93 ± 13% perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_poll
9.76 ± 16% -47.6% 5.12 ± 7% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.ip_ra_control
5.04 ± 12% -82.3% 0.89 ± 15% perf-sched.wait_time.avg.ms.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_datagram.skb_recv_datagram
156.71 ± 7% -63.8% 56.73 ± 8% perf-sched.wait_time.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
14.22 ± 7% -44.7% 7.86 ± 7% perf-sched.wait_time.avg.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
242.75 ± 20% +63.8% 397.69 ± 10% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc_lru_noprof.__d_alloc.d_alloc_pseudo.alloc_file_pseudo
110.27 ± 45% +123.6% 246.56 ± 25% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc_node_noprof.__alloc_skb.alloc_skb_with_frags.sock_alloc_send_pskb
66.55 ± 38% +245.7% 230.06 ± 57% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc_noprof.sk_prot_alloc.sk_alloc.inet_create
15.52 ± 9% +1583.8% 261.33 ±105% perf-sched.wait_time.max.ms.__cond_resched.shmem_inode_acct_blocks.shmem_alloc_and_add_folio.shmem_get_folio_gfp.shmem_write_begin
38.52 ± 84% +855.3% 367.94 ± 80% perf-sched.wait_time.max.ms.__cond_resched.task_work_run.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
34.34 ± 82% +681.2% 268.28 ± 50% perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown].[unknown]
131.26 ± 64% +195.2% 387.45 ± 7% perf-sched.wait_time.max.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.ip_ra_control
645.30 ± 24% -39.5% 390.56 ± 23% perf-sched.wait_time.max.ms.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_datagram.skb_recv_datagram
1841 ± 9% -16.0% 1547 ± 9% perf-sched.wait_time.max.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
***************************************************************************************************
lkp-srf-2sp2: 192 threads 2 sockets Intel(R) Xeon(R) 6740E CPU @ 2.4GHz (Sierra Forest) with 256G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
gcc-12/performance/x86_64-rhel-9.4/100%/debian-12-x86_64-20240206.cgz/lkp-srf-2sp2/membarrier/stress-ng/60s
commit:
032e1003ad ("sched: Make clangd usable")
7bca60ce65 ("sched/deadline: Less agressive dl_server handling")
032e1003ad358e4c 7bca60ce656978b01caafc4e228
---------------- ---------------------------
%stddev %change %stddev
\ | \
2.649e+09 +104.8% 5.425e+09 ± 6% cpuidle..time
3815319 +104.4% 7797511 ± 5% cpuidle..usage
387254 +4.6% 405223 ± 4% proc-vmstat.nr_inactive_anon
1005623 +1.8% 1023290 proc-vmstat.nr_mapped
117909 +15.0% 135583 ± 12% proc-vmstat.nr_writeback_temp
387254 +4.6% 405223 ± 4% proc-vmstat.nr_zone_active_anon
24.15 +90.6% 46.04 ± 6% vmstat.cpu.id
165.74 ± 2% -35.8% 106.42 ± 8% vmstat.procs.r
52841 +71.6% 90667 ± 3% vmstat.system.cs
3030991 -26.8% 2219763 ± 3% vmstat.system.in
22.70 +22.1 44.83 ± 6% mpstat.cpu.all.idle%
1.80 -0.4 1.38 ± 2% mpstat.cpu.all.irq%
75.22 -21.7 53.48 ± 5% mpstat.cpu.all.sys%
8.33 ± 34% +424.0% 43.67 ± 21% mpstat.max_utilization.seconds
82.47 -28.8% 58.72 ± 4% mpstat.max_utilization_pct
183.75 +18.2% 217.18 ± 3% stress-ng.membarrier.membarrier_calls_per_sec
106067 +18.1% 125306 ± 3% stress-ng.membarrier.ops
1765 +18.2% 2086 ± 3% stress-ng.membarrier.ops_per_sec
507928 -80.1% 100928 ± 31% stress-ng.time.involuntary_context_switches
14890 -30.0% 10421 ± 5% stress-ng.time.percent_of_cpu_this_job_got
8973 -30.0% 6279 ± 5% stress-ng.time.system_time
1595572 +80.9% 2886509 ± 2% stress-ng.time.voluntary_context_switches
0.16 ± 2% +21.3% 0.20 ± 3% perf-stat.i.MPKI
1.799e+10 -28.9% 1.279e+10 ± 5% perf-stat.i.branch-instructions
0.15 ± 2% +0.1 0.21 ± 5% perf-stat.i.branch-miss-rate%
15.43 -2.1 13.31 ± 3% perf-stat.i.cache-miss-rate%
11411999 -13.4% 9882107 ± 3% perf-stat.i.cache-misses
54258 +72.7% 93707 ± 3% perf-stat.i.context-switches
4.84e+11 -29.5% 3.412e+11 ± 5% perf-stat.i.cpu-cycles
17914 +8.6% 19454 perf-stat.i.cpu-migrations
45484 -17.5% 37527 ± 3% perf-stat.i.cycles-between-cache-misses
8.952e+10 -29.1% 6.343e+10 ± 5% perf-stat.i.instructions
0.19 +2.4% 0.19 perf-stat.i.ipc
0.13 +22.3% 0.16 ± 3% perf-stat.overall.MPKI
0.12 +0.1 0.18 ± 6% perf-stat.overall.branch-miss-rate%
15.19 -2.2 12.98 ± 4% perf-stat.overall.cache-miss-rate%
42490 -18.5% 34619 ± 4% perf-stat.overall.cycles-between-cache-misses
1.769e+10 -28.9% 1.258e+10 ± 5% perf-stat.ps.branch-instructions
11203175 -13.4% 9698099 ± 2% perf-stat.ps.cache-misses
53359 +72.7% 92170 ± 3% perf-stat.ps.context-switches
4.76e+11 -29.5% 3.358e+11 ± 5% perf-stat.ps.cpu-cycles
17618 +8.6% 19130 perf-stat.ps.cpu-migrations
8.804e+10 -29.1% 6.242e+10 ± 5% perf-stat.ps.instructions
5.366e+12 -28.7% 3.827e+12 ± 5% perf-stat.total.instructions
4027699 -53.5% 1873472 ± 10% sched_debug.cfs_rq:/.avg_vruntime.avg
4311516 -40.2% 2577501 ± 5% sched_debug.cfs_rq:/.avg_vruntime.max
3909898 -77.1% 894939 ± 10% sched_debug.cfs_rq:/.avg_vruntime.min
59088 ± 5% +1096.6% 707027 ± 3% sched_debug.cfs_rq:/.avg_vruntime.stddev
0.47 ± 6% -40.9% 0.28 ± 24% sched_debug.cfs_rq:/.h_nr_queued.avg
2.42 ± 14% -37.9% 1.50 ± 19% sched_debug.cfs_rq:/.h_nr_queued.max
0.44 ± 8% -15.9% 0.37 ± 6% sched_debug.cfs_rq:/.h_nr_queued.stddev
0.47 ± 6% -40.8% 0.28 ± 24% sched_debug.cfs_rq:/.h_nr_runnable.avg
2.42 ± 14% -37.9% 1.50 ± 19% sched_debug.cfs_rq:/.h_nr_runnable.max
0.44 ± 8% -15.8% 0.37 ± 6% sched_debug.cfs_rq:/.h_nr_runnable.stddev
4027699 -53.5% 1873472 ± 10% sched_debug.cfs_rq:/.min_vruntime.avg
4311516 -40.2% 2577501 ± 5% sched_debug.cfs_rq:/.min_vruntime.max
3909898 -77.1% 894939 ± 10% sched_debug.cfs_rq:/.min_vruntime.min
59088 ± 5% +1096.6% 707027 ± 3% sched_debug.cfs_rq:/.min_vruntime.stddev
0.41 ± 5% -33.0% 0.27 ± 23% sched_debug.cfs_rq:/.nr_queued.avg
574.68 ± 3% -36.2% 366.88 ± 7% sched_debug.cfs_rq:/.runnable_avg.avg
1582 ± 8% -34.4% 1037 ± 3% sched_debug.cfs_rq:/.runnable_avg.max
230.83 ± 8% -55.2% 103.42 ± 30% sched_debug.cfs_rq:/.runnable_avg.min
257.39 ± 4% -23.1% 197.85 ± 6% sched_debug.cfs_rq:/.runnable_avg.stddev
490.01 ± 2% -26.0% 362.55 ± 7% sched_debug.cfs_rq:/.util_avg.avg
1342 ± 5% -24.9% 1008 ± 3% sched_debug.cfs_rq:/.util_avg.max
180.83 ± 10% -43.5% 102.25 ± 29% sched_debug.cfs_rq:/.util_avg.min
152.13 ± 8% -62.1% 57.69 ± 29% sched_debug.cfs_rq:/.util_est.avg
954.33 ± 17% -37.1% 599.83 ± 8% sched_debug.cfs_rq:/.util_est.max
144.41 ± 11% -28.8% 102.89 ± 13% sched_debug.cfs_rq:/.util_est.stddev
2119 ± 5% -34.0% 1398 ± 25% sched_debug.cpu.curr->pid.avg
0.00 ± 5% -13.2% 0.00 ± 11% sched_debug.cpu.next_balance.stddev
0.47 ± 6% -41.1% 0.28 ± 25% sched_debug.cpu.nr_running.avg
2.42 ± 14% -37.9% 1.50 ± 19% sched_debug.cpu.nr_running.max
0.44 ± 8% -16.8% 0.37 ± 6% sched_debug.cpu.nr_running.stddev
9997 +62.1% 16208 ± 2% sched_debug.cpu.nr_switches.avg
8163 ± 2% -38.0% 5063 ± 2% sched_debug.cpu.nr_switches.min
5189 ± 4% +190.8% 15089 ± 4% sched_debug.cpu.nr_switches.stddev
238.83 ± 19% +563.5% 1584 ± 34% sched_debug.cpu.nr_uninterruptible.max
-143.67 +542.7% -923.33 sched_debug.cpu.nr_uninterruptible.min
57.69 ± 3% +1206.4% 753.61 ± 24% sched_debug.cpu.nr_uninterruptible.stddev
2.25 ± 50% -99.9% 0.00 ±223% perf-sched.sch_delay.avg.ms.__cond_resched.__kmalloc_node_noprof.alloc_cpumask_var_node.membarrier_private_expedited.__do_sys_membarrier
0.00 ±143% +7057.1% 0.17 ±197% perf-sched.sch_delay.avg.ms.__cond_resched.__mutex_lock.constprop.0.membarrier_global_expedited
0.12 ± 11% -18.8% 0.10 ± 8% perf-sched.sch_delay.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
0.54 ± 33% -94.6% 0.03 ± 39% perf-sched.sch_delay.avg.ms.__cond_resched.__wait_for_common.stop_two_cpus.migrate_swap.task_numa_migrate
1.90 ± 26% -99.6% 0.01 ± 50% perf-sched.sch_delay.avg.ms.__cond_resched.cpus_read_lock.membarrier_global_expedited.__do_sys_membarrier.do_syscall_64
0.01 ± 86% -100.0% 0.00 perf-sched.sch_delay.avg.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
0.01 ± 41% -100.0% 0.00 perf-sched.sch_delay.avg.ms.__cond_resched.dput.__fput.__x64_sys_close.do_syscall_64
0.56 ± 70% -95.9% 0.02 ± 31% perf-sched.sch_delay.avg.ms.__cond_resched.stop_one_cpu.migrate_task_to.task_numa_migrate.isra
1.49 ± 29% -99.8% 0.00 ±107% perf-sched.sch_delay.avg.ms.__cond_resched.task_work_run.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.29 ± 91% -97.6% 0.01 ± 23% perf-sched.sch_delay.avg.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.03 ± 41% -75.1% 0.01 ± 38% perf-sched.sch_delay.avg.ms.anon_pipe_read.fifo_pipe_read.vfs_read.ksys_read
0.24 ± 92% -97.6% 0.01 ± 19% perf-sched.sch_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.05 ± 52% -76.7% 0.01 ± 22% perf-sched.sch_delay.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.23 ±117% -95.0% 0.01 ± 26% perf-sched.sch_delay.avg.ms.io_schedule.migration_entry_wait_on_locked.__handle_mm_fault.handle_mm_fault
1.41 ± 55% -99.5% 0.01 ± 91% perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
0.05 ±114% -86.1% 0.01 ± 14% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.22 ± 60% -90.6% 0.02 ± 69% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_poll
1.48 -88.4% 0.17 ± 29% perf-sched.sch_delay.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.membarrier_global_expedited
1.35 -98.1% 0.03 ± 16% perf-sched.sch_delay.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.membarrier_private_expedited
0.56 ± 2% -95.4% 0.03 ± 17% perf-sched.sch_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.__wait_rcu_gp
0.23 ± 21% -97.4% 0.01 ± 9% perf-sched.sch_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
1.19 ± 4% -97.7% 0.03 ± 23% perf-sched.sch_delay.avg.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
2.51 ± 44% -99.9% 0.00 ±223% perf-sched.sch_delay.max.ms.__cond_resched.__kmalloc_node_noprof.alloc_cpumask_var_node.membarrier_private_expedited.__do_sys_membarrier
0.00 ±143% +2.1e+05% 4.82 ±219% perf-sched.sch_delay.max.ms.__cond_resched.__mutex_lock.constprop.0.membarrier_global_expedited
5.38 ± 13% -82.7% 0.93 ± 32% perf-sched.sch_delay.max.ms.__cond_resched.__wait_for_common.stop_two_cpus.migrate_swap.task_numa_migrate
4.51 ± 27% -99.8% 0.01 ± 51% perf-sched.sch_delay.max.ms.__cond_resched.cpus_read_lock.membarrier_global_expedited.__do_sys_membarrier.do_syscall_64
0.02 ±119% -100.0% 0.00 perf-sched.sch_delay.max.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
0.01 ± 38% -100.0% 0.00 perf-sched.sch_delay.max.ms.__cond_resched.dput.__fput.__x64_sys_close.do_syscall_64
11.24 ±118% -91.5% 0.96 ± 26% perf-sched.sch_delay.max.ms.__cond_resched.stop_one_cpu.migrate_task_to.task_numa_migrate.isra
0.58 ± 88% -98.0% 0.01 ± 22% perf-sched.sch_delay.max.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
4.25 ± 20% -99.9% 0.00 ±110% perf-sched.sch_delay.max.ms.__cond_resched.task_work_run.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.23 ±106% -99.1% 0.01 ± 28% perf-sched.sch_delay.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.94 ± 81% -99.0% 0.01 ± 13% perf-sched.sch_delay.max.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
2.33 ± 50% -92.6% 0.17 ±175% perf-sched.sch_delay.max.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.34 ± 52% -99.7% 0.01 ± 91% perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
3.96 ± 19% -99.3% 0.03 ± 62% perf-sched.sch_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
16.95 ± 75% -97.6% 0.41 ±104% perf-sched.sch_delay.max.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.94 -93.3% 0.06 ± 24% perf-sched.total_sch_delay.average.ms
35.08 -24.6% 26.43 ± 2% perf-sched.total_wait_and_delay.average.ms
172758 +33.5% 230694 perf-sched.total_wait_and_delay.count.ms
4826 -11.0% 4295 ± 4% perf-sched.total_wait_and_delay.max.ms
34.14 -22.7% 26.37 ± 2% perf-sched.total_wait_time.average.ms
4826 -11.0% 4295 ± 4% perf-sched.total_wait_time.max.ms
521.72 ± 10% -66.9% 172.46 ± 10% perf-sched.wait_and_delay.avg.ms.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_poll
17.81 +36.8% 24.35 perf-sched.wait_and_delay.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.membarrier_global_expedited
18.37 -16.7% 15.29 ± 7% perf-sched.wait_and_delay.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.membarrier_private_expedited
31.46 -40.7% 18.67 ± 2% perf-sched.wait_and_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.__wait_rcu_gp
528.64 ± 2% -15.5% 446.58 ± 2% perf-sched.wait_and_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
33.01 -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
24.50 ± 3% +249.7% 85.67 ± 7% perf-sched.wait_and_delay.count.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_poll
46991 +19.1% 55945 ± 6% perf-sched.wait_and_delay.count.schedule_preempt_disabled.__mutex_lock.constprop.0.membarrier_global_expedited
31298 +128.6% 71533 ± 3% perf-sched.wait_and_delay.count.schedule_preempt_disabled.__mutex_lock.constprop.0.membarrier_private_expedited
1858 +17.7% 2187 ± 2% perf-sched.wait_and_delay.count.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
906.33 ± 4% -100.0% 0.00 perf-sched.wait_and_delay.count.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
157.84 ±223% +519.2% 977.33 perf-sched.wait_and_delay.max.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.x64_sys_call
173.28 ± 14% -62.8% 64.47 ± 40% perf-sched.wait_and_delay.max.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.membarrier_global_expedited
173.41 ± 14% -63.6% 63.19 ± 35% perf-sched.wait_and_delay.max.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.membarrier_private_expedited
172.89 ± 13% -63.1% 63.75 ± 41% perf-sched.wait_and_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.__wait_rcu_gp
15.67 ± 47% -67.8% 5.05 perf-sched.wait_and_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
863.19 ± 35% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
31.51 ± 6% -93.7% 1.98 ±223% perf-sched.wait_time.avg.ms.__cond_resched.__kmalloc_node_noprof.alloc_cpumask_var_node.membarrier_private_expedited.__do_sys_membarrier
7.30 ±145% +263.7% 26.54 ± 6% perf-sched.wait_time.avg.ms.__cond_resched.__mutex_lock.constprop.0.membarrier_global_expedited
31.79 ± 5% -26.7% 23.29 ± 3% perf-sched.wait_time.avg.ms.__cond_resched.__wait_for_common.stop_two_cpus.migrate_swap.task_numa_migrate
29.60 ± 2% -52.7% 13.99 ± 50% perf-sched.wait_time.avg.ms.__cond_resched.cpus_read_lock.membarrier_global_expedited.__do_sys_membarrier.do_syscall_64
0.01 ± 41% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.dput.__fput.__x64_sys_close.do_syscall_64
31.61 ± 4% -32.3% 21.42 ± 2% perf-sched.wait_time.avg.ms.__cond_resched.stop_one_cpu.migrate_task_to.task_numa_migrate.isra
28.18 ± 16% -40.3% 16.83 ± 30% perf-sched.wait_time.avg.ms.io_schedule.migration_entry_wait_on_locked.__handle_mm_fault.handle_mm_fault
521.50 ± 10% -66.9% 172.44 ± 10% perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_poll
16.33 +48.1% 24.18 perf-sched.wait_time.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.membarrier_global_expedited
30.90 -39.7% 18.64 ± 2% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.__wait_rcu_gp
0.84 ± 4% -28.9% 0.60 ± 2% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
528.63 ± 2% -15.5% 446.57 ± 2% perf-sched.wait_time.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
31.82 -36.4% 20.24 ± 10% perf-sched.wait_time.avg.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
32.50 ± 5% -93.9% 1.98 ±223% perf-sched.wait_time.max.ms.__cond_resched.__kmalloc_node_noprof.alloc_cpumask_var_node.membarrier_private_expedited.__do_sys_membarrier
7.30 ±145% +367.3% 34.11 ± 8% perf-sched.wait_time.max.ms.__cond_resched.__mutex_lock.constprop.0.membarrier_global_expedited
131.53 ± 30% -65.6% 45.28 ± 52% perf-sched.wait_time.max.ms.__cond_resched.__wait_for_common.stop_two_cpus.migrate_swap.task_numa_migrate
35.67 ± 3% -56.0% 15.69 ± 61% perf-sched.wait_time.max.ms.__cond_resched.cpus_read_lock.membarrier_global_expedited.__do_sys_membarrier.do_syscall_64
0.01 ± 38% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.dput.__fput.__x64_sys_close.do_syscall_64
58.67 ± 80% -78.9% 12.40 ±106% perf-sched.wait_time.max.ms.__cond_resched.task_work_run.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
337.05 ±140% -99.7% 1.17 ± 3% perf-sched.wait_time.max.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
35.86 ± 11% -57.8% 15.12 ± 84% perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
166.02 ± 16% -62.3% 62.52 ± 42% perf-sched.wait_time.max.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.membarrier_global_expedited
168.85 ± 15% -66.0% 57.38 ± 44% perf-sched.wait_time.max.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.membarrier_private_expedited
166.11 ± 15% -63.4% 60.73 ± 44% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.__wait_rcu_gp
4.66 ± 12% -50.4% 2.31 ± 4% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
13.65 ± 49% -63.2% 5.02 perf-sched.wait_time.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
861.59 ± 36% -95.7% 37.30 ± 19% perf-sched.wait_time.max.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
***************************************************************************************************
lkp-spr-2sp4: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480CTDX (Sapphire Rapids) with 512G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
gcc-12/performance/x86_64-rhel-9.4/100%/debian-12-x86_64-20240206.cgz/lkp-spr-2sp4/timer/stress-ng/60s
commit:
032e1003ad ("sched: Make clangd usable")
7bca60ce65 ("sched/deadline: Less agressive dl_server handling")
032e1003ad358e4c 7bca60ce656978b01caafc4e228
---------------- ---------------------------
%stddev %change %stddev
\ | \
9.65e+08 ± 20% -44.3% 5.377e+08 ± 6% cpuidle..time
471918 ± 13% -36.6% 299078 ± 3% cpuidle..usage
1393 ± 27% +162.5% 3658 ± 2% perf-c2c.DRAM.local
3285 ± 19% -46.2% 1768 ± 12% perf-c2c.DRAM.remote
49987 ± 7% -93.9% 3069 ± 5% perf-c2c.HITM.local
51112 ± 7% -92.2% 3983 ± 6% perf-c2c.HITM.total
11.12 ± 17% -39.8% 6.70 ± 9% vmstat.cpu.id
63.78 ± 9% +176.1% 176.06 vmstat.procs.r
14250660 ± 4% +279.8% 54130066 vmstat.system.cs
18058657 ± 6% +255.1% 64127870 vmstat.system.in
8.33 ± 23% -4.4 3.96 ± 6% mpstat.cpu.all.idle%
72.47 ± 5% -47.7 24.80 mpstat.cpu.all.irq%
0.13 ± 7% +0.9 1.02 mpstat.cpu.all.soft%
15.77 ± 9% +45.9 61.71 mpstat.cpu.all.sys%
3.30 ± 8% +5.2 8.50 mpstat.cpu.all.usr%
30202899 ± 27% -74.5% 7713523 ± 15% stress-ng.time.involuntary_context_switches
3451 ± 9% +271.5% 12821 stress-ng.time.percent_of_cpu_this_job_got
1808 ± 9% +279.4% 6860 stress-ng.time.system_time
269.18 ± 10% +218.9% 858.49 stress-ng.time.user_time
4.734e+08 ± 5% +266.2% 1.734e+09 stress-ng.time.voluntary_context_switches
5.573e+08 ± 6% +265.1% 2.035e+09 stress-ng.timer.ops
9288895 ± 6% +265.1% 33915351 stress-ng.timer.ops_per_sec
11366431 ± 2% -33.7% 7539947 ± 2% meminfo.Active
11366431 ± 2% -33.7% 7539947 ± 2% meminfo.Active(anon)
13966810 ± 2% -26.7% 10238040 ± 3% meminfo.Cached
13228581 ± 2% -28.5% 9461059 ± 3% meminfo.Committed_AS
978798 ± 3% -24.2% 742213 ± 2% meminfo.Mapped
18188884 -21.1% 14349727 meminfo.Memused
10415785 ± 3% -35.8% 6687008 ± 4% meminfo.Shmem
18314446 -21.1% 14457915 meminfo.max_used_kB
245720 ± 3% -24.3% 186050 ± 2% proc-vmstat.nr_anon_pages
2843787 ± 2% -33.9% 1880585 ± 2% proc-vmstat.nr_inactive_anon
3493822 ± 2% -26.9% 2554863 ± 3% proc-vmstat.nr_mapped
4993412 -19.1% 4037784 proc-vmstat.nr_unaccepted
44879 -4.6% 42832 proc-vmstat.nr_unevictable
2606064 ± 3% -36.0% 1667105 ± 5% proc-vmstat.nr_writeback_temp
2843787 ± 2% -33.9% 1880585 ± 2% proc-vmstat.nr_zone_active_anon
4624388 ± 4% -29.8% 3246513 ± 4% proc-vmstat.numa_interleave
4995767 ± 3% -28.6% 3567888 ± 3% proc-vmstat.pgalloc_dma32
22.69 ±100% -22.7 0.00 perf-profile.calltrace.cycles-pp.dl_server_start.enqueue_task_fair.enqueue_task.ttwu_do_activate.try_to_wake_up
22.68 ±100% -22.7 0.00 perf-profile.calltrace.cycles-pp.enqueue_dl_entity.dl_server_start.enqueue_task_fair.enqueue_task.ttwu_do_activate
22.59 ±100% -22.6 0.00 perf-profile.calltrace.cycles-pp.start_dl_timer.enqueue_dl_entity.dl_server_start.enqueue_task_fair.enqueue_task
22.54 ±100% -22.5 0.00 perf-profile.calltrace.cycles-pp.hrtimer_start_range_ns.start_dl_timer.enqueue_dl_entity.dl_server_start.enqueue_task_fair
14.58 ±100% -14.6 0.00 perf-profile.calltrace.cycles-pp.dl_server_stop.dequeue_entities.dequeue_task_fair.try_to_block_task.__schedule
14.38 ±100% -14.4 0.00 perf-profile.calltrace.cycles-pp.hrtimer_try_to_cancel.dl_server_stop.dequeue_entities.dequeue_task_fair.try_to_block_task
14.24 ±100% -14.2 0.00 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.hrtimer_try_to_cancel.dl_server_stop.dequeue_entities.dequeue_task_fair
14.19 ±100% -14.2 0.00 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.hrtimer_try_to_cancel.dl_server_stop.dequeue_entities
13.74 ±100% -13.7 0.00 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.hrtimer_start_range_ns.start_dl_timer.enqueue_dl_entity.dl_server_start
13.69 ±100% -13.7 0.00 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.hrtimer_start_range_ns.start_dl_timer.enqueue_dl_entity
8.62 ±100% -8.6 0.00 perf-profile.calltrace.cycles-pp.switch_hrtimer_base.hrtimer_start_range_ns.start_dl_timer.enqueue_dl_entity.dl_server_start
8.52 ±100% -8.5 0.00 perf-profile.calltrace.cycles-pp._raw_spin_lock.switch_hrtimer_base.hrtimer_start_range_ns.start_dl_timer.enqueue_dl_entity
8.48 ±100% -8.5 0.00 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.switch_hrtimer_base.hrtimer_start_range_ns.start_dl_timer
36.86 ±100% -36.9 0.00 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
22.70 ±100% -22.7 0.00 perf-profile.children.cycles-pp.dl_server_start
22.70 ±100% -22.7 0.00 perf-profile.children.cycles-pp.enqueue_dl_entity
22.61 ±100% -22.6 0.00 perf-profile.children.cycles-pp.start_dl_timer
14.58 ±100% -14.6 0.00 perf-profile.children.cycles-pp.dl_server_stop
36.86 ±100% -36.9 0.00 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
0.20 ± 10% -75.3% 0.05 ± 4% perf-stat.i.MPKI
3.739e+10 ± 3% +160.6% 9.743e+10 perf-stat.i.branch-instructions
0.32 ± 2% -0.1 0.17 ± 2% perf-stat.i.branch-miss-rate%
1.134e+08 ± 5% +36.0% 1.541e+08 perf-stat.i.branch-misses
13.85 ± 4% +8.4 22.21 ± 3% perf-stat.i.cache-miss-rate%
35907287 ± 12% -44.3% 20014868 ± 4% perf-stat.i.cache-misses
2.356e+08 ± 11% -66.9% 78055859 ± 5% perf-stat.i.cache-references
14772924 ± 4% +282.4% 56485490 perf-stat.i.context-switches
3.40 ± 5% -62.9% 1.26 perf-stat.i.cpi
6.126e+11 +3.6% 6.344e+11 perf-stat.i.cpu-cycles
45650 ± 30% -59.9% 18293 ± 15% perf-stat.i.cpu-migrations
25747 ± 26% +116.1% 55648 ± 6% perf-stat.i.cycles-between-cache-misses
1.844e+11 ± 3% +175.4% 5.079e+11 perf-stat.i.instructions
0.30 ± 5% +163.7% 0.80 perf-stat.i.ipc
65.89 ± 4% +282.7% 252.13 perf-stat.i.metric.K/sec
0.19 ± 9% -79.9% 0.04 ± 3% perf-stat.overall.MPKI
0.30 -0.1 0.16 perf-stat.overall.branch-miss-rate%
15.16 ± 2% +10.3 25.49 ± 3% perf-stat.overall.cache-miss-rate%
3.34 ± 5% -62.5% 1.25 perf-stat.overall.cpi
17517 ± 14% +83.8% 32206 ± 3% perf-stat.overall.cycles-between-cache-misses
0.30 ± 5% +166.0% 0.80 perf-stat.overall.ipc
3.665e+10 ± 3% +160.9% 9.561e+10 perf-stat.ps.branch-instructions
1.104e+08 ± 4% +35.6% 1.497e+08 perf-stat.ps.branch-misses
35038923 ± 12% -44.6% 19408879 ± 3% perf-stat.ps.cache-misses
2.307e+08 ± 10% -66.9% 76282209 ± 5% perf-stat.ps.cache-references
14499051 ± 4% +284.5% 55749126 perf-stat.ps.context-switches
6.024e+11 +3.7% 6.244e+11 perf-stat.ps.cpu-cycles
44625 ± 30% -59.3% 18160 ± 16% perf-stat.ps.cpu-migrations
1.808e+11 ± 3% +175.9% 4.987e+11 perf-stat.ps.instructions
1.109e+13 ± 3% +176.5% 3.065e+13 perf-stat.total.instructions
468618 ± 13% +555.4% 3071214 ± 4% sched_debug.cfs_rq:/.avg_vruntime.avg
1760225 ± 9% +135.1% 4137583 ± 4% sched_debug.cfs_rq:/.avg_vruntime.max
126460 ± 13% +2212.5% 2924391 ± 4% sched_debug.cfs_rq:/.avg_vruntime.min
165925 ± 8% -34.9% 108063 ± 7% sched_debug.cfs_rq:/.avg_vruntime.stddev
0.43 ± 5% -20.4% 0.35 ± 3% sched_debug.cfs_rq:/.h_nr_queued.avg
0.43 ± 6% -22.1% 0.33 ± 5% sched_debug.cfs_rq:/.h_nr_runnable.avg
1028326 ± 38% +209.6% 3183766 ± 4% sched_debug.cfs_rq:/.left_deadline.max
221871 ± 14% +259.8% 798312 ± 18% sched_debug.cfs_rq:/.left_deadline.stddev
1028182 ± 38% +209.6% 3183503 ± 4% sched_debug.cfs_rq:/.left_vruntime.max
221805 ± 14% +259.9% 798242 ± 18% sched_debug.cfs_rq:/.left_vruntime.stddev
6383 ± 23% -60.2% 2539 ± 5% sched_debug.cfs_rq:/.load.avg
196131 ±195% -90.4% 18756 ± 8% sched_debug.cfs_rq:/.load.max
468618 ± 13% +555.4% 3071214 ± 4% sched_debug.cfs_rq:/.min_vruntime.avg
1760225 ± 9% +135.1% 4137583 ± 4% sched_debug.cfs_rq:/.min_vruntime.max
126460 ± 13% +2212.5% 2924391 ± 4% sched_debug.cfs_rq:/.min_vruntime.min
165925 ± 8% -34.9% 108063 ± 7% sched_debug.cfs_rq:/.min_vruntime.stddev
0.43 ± 5% -28.3% 0.31 ± 6% sched_debug.cfs_rq:/.nr_queued.avg
0.28 ± 9% +27.0% 0.36 ± 3% sched_debug.cfs_rq:/.nr_queued.stddev
1028182 ± 38% +209.6% 3183503 ± 4% sched_debug.cfs_rq:/.right_vruntime.max
221805 ± 14% +259.9% 798242 ± 18% sched_debug.cfs_rq:/.right_vruntime.stddev
255.53 ± 6% +70.3% 435.29 ± 2% sched_debug.cfs_rq:/.runnable_avg.avg
196.91 ± 6% +118.7% 430.59 ± 3% sched_debug.cfs_rq:/.util_avg.avg
372.78 ± 4% -15.0% 316.74 ± 4% sched_debug.cfs_rq:/.util_est.avg
17.52 ± 4% +33.7% 23.42 ± 7% sched_debug.cpu.clock.stddev
69446 ± 5% +10.8% 76960 ± 2% sched_debug.cpu.clock_task.avg
55201 ± 5% +13.2% 62494 ± 3% sched_debug.cpu.clock_task.min
1380 ± 3% -23.0% 1063 ± 2% sched_debug.cpu.clock_task.stddev
1764 ± 11% +49.9% 2646 sched_debug.cpu.curr->pid.avg
0.00 ± 18% +171.9% 0.00 ± 90% sched_debug.cpu.next_balance.stddev
0.11 ± 22% +293.6% 0.44 sched_debug.cpu.nr_running.avg
1969374 ± 4% +284.2% 7566629 sched_debug.cpu.nr_switches.avg
3819538 ± 13% +122.0% 8477830 sched_debug.cpu.nr_switches.max
8064 ± 21% +38772.5% 3134971 ± 21% sched_debug.cpu.nr_switches.min
317241 ± 15% +68.5% 534501 ± 6% sched_debug.cpu.nr_switches.stddev
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.
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
Powered by blists - more mailing lists