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Message-ID: <202503102156.d70c4800-lkp@intel.com>
Date: Mon, 10 Mar 2025 22:06:01 +0800
From: kernel test robot <oliver.sang@...el.com>
To: James Morse <james.morse@....com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, Shaopeng Tan
<tan.shaopeng@...fujitsu.com>, Reinette Chatre <reinette.chatre@...el.com>,
Tony Luck <tony.luck@...el.com>, <linux-kernel@...r.kernel.org>,
<oliver.sang@...el.com>
Subject: [morse:mpam/move_to_fs/v7_bare] [x86/resctrl] 0021800a46:
will-it-scale.per_process_ops 18.4% improvement
Hello,
kernel test robot noticed a 18.4% improvement of will-it-scale.per_process_ops on:
commit: 0021800a465d495a536265c52f8a031da43948ed ("x86/resctrl: Use schema type to determine the schema format string")
https://git.kernel.org/cgit/linux/kernel/git/morse/linux.git mpam/move_to_fs/v7_bare
testcase: will-it-scale
config: x86_64-rhel-9.4
compiler: gcc-12
test machine: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480CTDX (Sapphire Rapids) with 512G memory
parameters:
nr_task: 100%
mode: process
test: signal1
cpufreq_governor: performance
In addition to that, the commit also has significant impact on the following tests:
+------------------+---------------------------------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.usersyscall.ops_per_sec 18.0% 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=usersyscall |
| | testtime=60s |
+------------------+---------------------------------------------------------------------------------------------+
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250310/202503102156.d70c4800-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-spr-2sp4/signal1/will-it-scale
commit:
a13ae432a6 ("x86/resctrl: Use schema type to determine how to parse schema values")
0021800a46 ("x86/resctrl: Use schema type to determine the schema format string")
a13ae432a665d1d0 0021800a465d495a536265c52f8
---------------- ---------------------------
%stddev %change %stddev
\ | \
371124 ± 13% +23.2% 457121 ± 5% meminfo.Mapped
0.02 ± 5% -0.0 0.02 ± 2% mpstat.cpu.all.soft%
93276 ± 13% +22.9% 114661 ± 5% proc-vmstat.nr_mapped
290918 ± 16% +38.9% 404183 ± 7% numa-meminfo.node1.Mapped
388.17 ±119% +3.2e+05% 1237125 ±124% numa-meminfo.node1.Unevictable
72842 ± 16% +38.7% 101060 ± 7% numa-vmstat.node1.nr_mapped
97.04 ±119% +3.2e+05% 309281 ±124% numa-vmstat.node1.nr_unevictable
97.04 ±119% +3.2e+05% 309281 ±124% numa-vmstat.node1.nr_zone_unevictable
6588847 +18.4% 7802117 will-it-scale.224.processes
29414 +18.4% 34830 will-it-scale.per_process_ops
6588847 +18.4% 7802117 will-it-scale.workload
5736 ± 18% -30.2% 4005 ± 16% perf-c2c.DRAM.remote
12227 ± 16% +55.7% 19033 ± 17% perf-c2c.HITM.local
5053 ± 18% -34.5% 3308 ± 16% perf-c2c.HITM.remote
17281 ± 16% +29.3% 22341 ± 17% perf-c2c.HITM.total
1.14 ± 33% -97.7% 0.03 ±108% perf-sched.sch_delay.avg.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.alloc_pages_noprof.__pud_alloc
3.13 ± 4% -10.6% 2.80 ± 6% perf-sched.sch_delay.avg.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.folio_alloc_mpol_noprof.vma_alloc_folio_noprof
0.38 ± 7% -18.5% 0.31 ± 5% perf-sched.sch_delay.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
0.02 ± 22% -44.0% 0.01 ± 18% perf-sched.sch_delay.avg.ms.schedule_timeout.msleep.ast_astdp_connector_helper_detect_ctx.drm_helper_probe_detect_ctx
0.04 ± 17% -18.5% 0.03 ± 9% perf-sched.sch_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
1.77 ± 28% -97.4% 0.05 ±117% perf-sched.sch_delay.max.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.alloc_pages_noprof.__pud_alloc
3.07 ± 24% -47.7% 1.60 ± 50% perf-sched.sch_delay.max.ms.__cond_resched.kmem_cache_alloc_noprof.vm_area_dup.__split_vma.vms_gather_munmap_vmas
0.04 ± 48% -60.4% 0.02 ± 35% perf-sched.sch_delay.max.ms.schedule_timeout.msleep.ast_astdp_connector_helper_detect_ctx.drm_helper_probe_detect_ctx
4698 ± 96% -78.5% 1007 perf-sched.wait_and_delay.max.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.97 ± 35% -98.6% 0.01 ±169% perf-sched.wait_time.avg.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.alloc_pages_noprof.__pud_alloc
1.90 ± 43% -59.9% 0.76 ± 82% perf-sched.wait_time.avg.ms.__cond_resched.__anon_vma_prepare.__vmf_anon_prepare.do_pte_missing.__handle_mm_fault
2.31 ± 15% -42.7% 1.32 ± 56% perf-sched.wait_time.avg.ms.__cond_resched.down_read.walk_component.link_path_walk.part
1.74 ± 25% -98.5% 0.03 ±170% perf-sched.wait_time.max.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.alloc_pages_noprof.__pud_alloc
3.07 ± 24% -47.7% 1.60 ± 50% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc_noprof.vm_area_dup.__split_vma.vms_gather_munmap_vmas
4436 ±104% -77.3% 1007 perf-sched.wait_time.max.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.16 -42.0% 0.09 perf-stat.i.MPKI
5.316e+09 +17.2% 6.231e+09 perf-stat.i.branch-instructions
0.40 -0.0 0.38 perf-stat.i.branch-miss-rate%
21246147 +11.4% 23662917 perf-stat.i.branch-misses
22.12 ± 2% -9.2 12.91 perf-stat.i.cache-miss-rate%
4407081 -33.2% 2945886 perf-stat.i.cache-misses
19702928 ± 2% +12.0% 22067992 perf-stat.i.cache-references
22.77 -14.7% 19.42 perf-stat.i.cpi
153602 +54.7% 237617 perf-stat.i.cycles-between-cache-misses
2.842e+10 +17.3% 3.332e+10 perf-stat.i.instructions
0.05 +15.3% 0.06 perf-stat.i.ipc
0.15 -43.1% 0.09 perf-stat.overall.MPKI
0.40 -0.0 0.38 perf-stat.overall.branch-miss-rate%
22.36 ± 2% -9.0 13.32 perf-stat.overall.cache-miss-rate%
22.77 -14.7% 19.43 perf-stat.overall.cpi
147278 +49.8% 220671 perf-stat.overall.cycles-between-cache-misses
0.04 +17.2% 0.05 perf-stat.overall.ipc
1302291 -1.0% 1289647 perf-stat.overall.path-length
5.297e+09 +17.2% 6.205e+09 perf-stat.ps.branch-instructions
21150909 +11.4% 23557858 perf-stat.ps.branch-misses
4378997 -33.3% 2922005 perf-stat.ps.cache-misses
19589543 ± 2% +12.0% 21940439 perf-stat.ps.cache-references
2.831e+10 +17.2% 3.318e+10 perf-stat.ps.instructions
8.581e+12 +17.3% 1.006e+13 perf-stat.total.instructions
39.12 -1.2 37.93 perf-profile.calltrace.cycles-pp.inc_rlimit_get_ucounts.sig_get_ucounts.__send_signal_locked.do_send_sig_info.do_send_specific
39.14 -1.2 37.95 perf-profile.calltrace.cycles-pp.sig_get_ucounts.__send_signal_locked.do_send_sig_info.do_send_specific.__x64_sys_tgkill
39.54 -0.8 38.74 perf-profile.calltrace.cycles-pp.do_dec_rlimit_put_ucounts.__sigqueue_free.dequeue_signal.get_signal.arch_do_signal_or_restart
39.55 -0.8 38.75 perf-profile.calltrace.cycles-pp.__sigqueue_free.dequeue_signal.get_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode
0.54 +0.1 0.62 perf-profile.calltrace.cycles-pp.copy_fpstate_to_sigframe.get_sigframe.x64_setup_rt_frame.handle_signal.arch_do_signal_or_restart
0.60 +0.1 0.68 perf-profile.calltrace.cycles-pp.fpu__restore_sig.restore_sigcontext.__x64_sys_rt_sigreturn.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.72 +0.1 0.82 perf-profile.calltrace.cycles-pp.restore_sigcontext.__x64_sys_rt_sigreturn.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.86 +0.1 0.99 perf-profile.calltrace.cycles-pp.get_sigframe.x64_setup_rt_frame.handle_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode
1.10 +0.1 1.23 perf-profile.calltrace.cycles-pp.__x64_sys_rt_sigreturn.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.99 +0.1 1.13 perf-profile.calltrace.cycles-pp.x64_setup_rt_frame.handle_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode.do_syscall_64
1.19 ± 22% +0.2 1.43 ± 6% perf-profile.calltrace.cycles-pp.idr_find.find_task_by_vpid.do_send_specific.__x64_sys_tgkill.do_syscall_64
1.48 ± 4% +0.3 1.75 perf-profile.calltrace.cycles-pp.obj_cgroup_charge.__memcg_slab_post_alloc_hook.kmem_cache_alloc_noprof.__send_signal_locked.do_send_sig_info
1.75 ± 13% +0.3 2.03 ± 2% perf-profile.calltrace.cycles-pp.handle_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.57 ± 4% +0.3 1.85 perf-profile.calltrace.cycles-pp.__memcg_slab_post_alloc_hook.kmem_cache_alloc_noprof.__send_signal_locked.do_send_sig_info.do_send_specific
1.46 ± 5% +0.3 1.75 perf-profile.calltrace.cycles-pp.refill_obj_stock.__memcg_slab_free_hook.kmem_cache_free.dequeue_signal.get_signal
1.63 ± 4% +0.3 1.93 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.__send_signal_locked.do_send_sig_info.do_send_specific.__x64_sys_tgkill
1.55 ± 5% +0.3 1.85 perf-profile.calltrace.cycles-pp.__memcg_slab_free_hook.kmem_cache_free.dequeue_signal.get_signal.arch_do_signal_or_restart
1.62 ± 5% +0.3 1.93 perf-profile.calltrace.cycles-pp.kmem_cache_free.dequeue_signal.get_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode
4.87 ± 6% +0.4 5.28 ± 3% perf-profile.calltrace.cycles-pp.handler
2.09 +0.5 2.60 perf-profile.calltrace.cycles-pp.recalc_sigpending.dequeue_signal.get_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode
2.48 +0.7 3.13 perf-profile.calltrace.cycles-pp.complete_signal.__send_signal_locked.do_send_sig_info.do_send_specific.__x64_sys_tgkill
39.12 -1.2 37.93 perf-profile.children.cycles-pp.inc_rlimit_get_ucounts
39.14 -1.2 37.95 perf-profile.children.cycles-pp.sig_get_ucounts
39.55 -0.8 38.74 perf-profile.children.cycles-pp.do_dec_rlimit_put_ucounts
39.56 -0.8 38.76 perf-profile.children.cycles-pp.__sigqueue_free
0.05 +0.0 0.06 perf-profile.children.cycles-pp.__get_user_8
0.05 +0.0 0.06 perf-profile.children.cycles-pp.__put_user_8
0.07 ± 5% +0.0 0.08 perf-profile.children.cycles-pp.mod_objcg_state
0.13 ± 3% +0.0 0.14 perf-profile.children.cycles-pp.restore_altstack
0.13 ± 2% +0.0 0.15 ± 3% perf-profile.children.cycles-pp.__task_pid_nr_ns
0.15 +0.0 0.17 ± 2% perf-profile.children.cycles-pp.check_xstate_in_sigframe
0.11 +0.0 0.13 ± 3% perf-profile.children.cycles-pp.__get_user_nocheck_4
0.08 ± 4% +0.0 0.10 ± 3% perf-profile.children.cycles-pp.rseq_update_cpu_node_id
0.14 ± 2% +0.0 0.16 ± 2% perf-profile.children.cycles-pp.__put_user_nocheck_4
0.14 +0.0 0.16 perf-profile.children.cycles-pp.rseq_ip_fixup
0.12 +0.0 0.14 perf-profile.children.cycles-pp.__get_user_nocheck_8
0.17 +0.0 0.19 perf-profile.children.cycles-pp._copy_from_user
0.16 +0.0 0.19 ± 2% perf-profile.children.cycles-pp.__fpu_restore_sig
0.16 ± 2% +0.0 0.19 perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.23 ± 2% +0.0 0.26 perf-profile.children.cycles-pp.save_xstate_epilog
0.23 +0.0 0.27 perf-profile.children.cycles-pp.__rseq_handle_notify_resume
0.00 +0.1 0.05 perf-profile.children.cycles-pp.__local_bh_enable_ip
0.00 +0.1 0.05 ± 7% perf-profile.children.cycles-pp.shmem_write_end
0.35 +0.1 0.40 perf-profile.children.cycles-pp.__restore_fpregs_from_user
0.44 ± 3% +0.1 0.49 ± 2% perf-profile.children.cycles-pp.__getpid
0.43 +0.1 0.49 perf-profile.children.cycles-pp.restore_fpregs_from_user
0.60 +0.1 0.68 perf-profile.children.cycles-pp.fpu__restore_sig
0.55 +0.1 0.63 perf-profile.children.cycles-pp.copy_fpstate_to_sigframe
0.91 ± 7% +0.1 1.01 ± 5% perf-profile.children.cycles-pp.find_task_by_vpid
0.72 +0.1 0.82 perf-profile.children.cycles-pp.restore_sigcontext
0.88 +0.1 1.00 perf-profile.children.cycles-pp.get_sigframe
1.12 +0.1 1.25 perf-profile.children.cycles-pp.__x64_sys_rt_sigreturn
1.00 +0.1 1.14 perf-profile.children.cycles-pp.x64_setup_rt_frame
1.84 ± 2% +0.2 2.04 ± 2% perf-profile.children.cycles-pp.handle_signal
1.48 ± 4% +0.3 1.75 perf-profile.children.cycles-pp.obj_cgroup_charge
1.58 ± 4% +0.3 1.86 perf-profile.children.cycles-pp.__memcg_slab_post_alloc_hook
1.46 ± 5% +0.3 1.75 perf-profile.children.cycles-pp.refill_obj_stock
1.64 ± 4% +0.3 1.93 perf-profile.children.cycles-pp.kmem_cache_alloc_noprof
1.56 ± 5% +0.3 1.86 perf-profile.children.cycles-pp.__memcg_slab_free_hook
1.62 ± 4% +0.3 1.94 perf-profile.children.cycles-pp.kmem_cache_free
2.17 +0.5 2.68 perf-profile.children.cycles-pp.recalc_sigpending
2.48 +0.6 3.13 perf-profile.children.cycles-pp.complete_signal
39.12 -1.2 37.93 perf-profile.self.cycles-pp.inc_rlimit_get_ucounts
39.55 -0.8 38.74 perf-profile.self.cycles-pp.do_dec_rlimit_put_ucounts
0.35 ± 17% -0.2 0.13 ± 10% perf-profile.self.cycles-pp.handler
0.05 +0.0 0.06 perf-profile.self.cycles-pp.__put_user_8
0.05 +0.0 0.06 perf-profile.self.cycles-pp.x64_sys_call
0.07 +0.0 0.08 perf-profile.self.cycles-pp.__memcg_slab_post_alloc_hook
0.09 +0.0 0.10 perf-profile.self.cycles-pp.check_xstate_in_sigframe
0.06 +0.0 0.07 perf-profile.self.cycles-pp.mod_objcg_state
0.08 +0.0 0.09 perf-profile.self.cycles-pp.rseq_update_cpu_node_id
0.11 ± 3% +0.0 0.12 perf-profile.self.cycles-pp.__get_user_nocheck_4
0.12 ± 3% +0.0 0.14 ± 3% perf-profile.self.cycles-pp.__task_pid_nr_ns
0.08 ± 4% +0.0 0.10 ± 5% perf-profile.self.cycles-pp.get_sigframe
0.09 ± 5% +0.0 0.11 ± 3% perf-profile.self.cycles-pp.save_xstate_epilog
0.11 ± 3% +0.0 0.13 perf-profile.self.cycles-pp.__get_user_nocheck_8
0.04 ± 44% +0.0 0.06 perf-profile.self.cycles-pp.__memcg_slab_free_hook
0.12 ± 4% +0.0 0.14 ± 5% perf-profile.self.cycles-pp.do_syscall_64
0.13 +0.0 0.15 perf-profile.self.cycles-pp.__put_user_nocheck_4
0.13 +0.0 0.15 perf-profile.self.cycles-pp.x64_setup_rt_frame
0.17 +0.0 0.19 perf-profile.self.cycles-pp._copy_from_user
0.15 +0.0 0.18 ± 2% perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.27 +0.0 0.30 perf-profile.self.cycles-pp.fpu__clear_user_states
0.25 ± 2% +0.0 0.29 perf-profile.self.cycles-pp.syscall_exit_to_user_mode
0.35 +0.0 0.40 perf-profile.self.cycles-pp.__restore_fpregs_from_user
0.00 +0.1 0.05 perf-profile.self.cycles-pp.shmem_write_end
0.42 +0.1 0.49 perf-profile.self.cycles-pp.copy_fpstate_to_sigframe
0.62 ± 7% +0.1 0.72 ± 5% perf-profile.self.cycles-pp.find_task_by_vpid
1.48 ± 4% +0.3 1.75 perf-profile.self.cycles-pp.obj_cgroup_charge
1.46 ± 5% +0.3 1.75 perf-profile.self.cycles-pp.refill_obj_stock
2.16 +0.5 2.67 perf-profile.self.cycles-pp.recalc_sigpending
2.42 +0.6 3.06 perf-profile.self.cycles-pp.complete_signal
***************************************************************************************************
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/usersyscall/stress-ng/60s
commit:
a13ae432a6 ("x86/resctrl: Use schema type to determine how to parse schema values")
0021800a46 ("x86/resctrl: Use schema type to determine the schema format string")
a13ae432a665d1d0 0021800a465d495a536265c52f8
---------------- ---------------------------
%stddev %change %stddev
\ | \
0.02 ± 5% -0.0 0.02 ± 3% mpstat.cpu.all.soft%
695763 ± 21% -28.4% 498121 ± 16% numa-numastat.node1.local_node
7622 ± 17% -51.6% 3685 ± 20% perf-c2c.DRAM.remote
6750 ± 17% -55.3% 3017 ± 20% perf-c2c.HITM.remote
32475 -15.5% 27453 stress-ng.usersyscall.nanosecs_per_syscall
1.974e+08 +18.0% 2.329e+08 stress-ng.usersyscall.ops
3290068 +18.0% 3881749 stress-ng.usersyscall.ops_per_sec
0.17 ± 5% -35.2% 0.11 ± 4% perf-stat.i.MPKI
6.367e+09 +16.5% 7.419e+09 perf-stat.i.branch-instructions
53883753 ± 3% +14.1% 61459248 ± 3% perf-stat.i.branch-misses
23.59 ± 4% -8.8 14.78 ± 3% perf-stat.i.cache-miss-rate%
5618447 ± 5% -27.6% 4069538 ± 5% perf-stat.i.cache-misses
22477865 ± 2% +8.1% 24292780 perf-stat.i.cache-references
19.10 -14.2% 16.40 perf-stat.i.cpi
136147 ± 4% +51.5% 206276 ± 4% perf-stat.i.cycles-between-cache-misses
3.331e+10 +16.7% 3.886e+10 perf-stat.i.instructions
0.06 +15.8% 0.06 perf-stat.i.ipc
0.17 ± 5% -38.0% 0.10 ± 4% perf-stat.overall.MPKI
24.72 ± 4% -8.2 16.49 ± 3% perf-stat.overall.cache-miss-rate%
19.15 -14.0% 16.47 perf-stat.overall.cpi
116330 ± 5% +38.6% 161261 ± 4% perf-stat.overall.cycles-between-cache-misses
0.05 +16.3% 0.06 perf-stat.overall.ipc
6.243e+09 +16.3% 7.26e+09 perf-stat.ps.branch-instructions
52388076 ± 3% +14.0% 59726018 ± 3% perf-stat.ps.branch-misses
5393246 ± 5% -27.8% 3891345 ± 4% perf-stat.ps.cache-misses
21817868 ± 2% +8.2% 23596167 perf-stat.ps.cache-references
3.267e+10 +16.4% 3.804e+10 perf-stat.ps.instructions
2.007e+12 +16.5% 2.339e+12 perf-stat.total.instructions
1.23 ± 35% -67.7% 0.40 ±101% perf-sched.sch_delay.avg.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.alloc_pages_noprof.__pud_alloc
1.78 ± 14% -70.7% 0.52 ±138% perf-sched.sch_delay.avg.ms.__cond_resched.__anon_vma_prepare.__vmf_anon_prepare.do_pte_missing.__handle_mm_fault
0.33 ± 80% -69.4% 0.10 ±131% perf-sched.sch_delay.avg.ms.__cond_resched.__get_user_pages.get_user_pages_remote.get_arg_page.copy_strings
2.56 ± 24% -69.6% 0.78 ± 80% perf-sched.sch_delay.avg.ms.__cond_resched.__kmalloc_cache_noprof.vmstat_start.seq_read_iter.proc_reg_read_iter
0.57 ± 58% -56.2% 0.25 ± 14% perf-sched.sch_delay.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
2.53 ± 12% -51.6% 1.23 ± 51% perf-sched.sch_delay.avg.ms.__cond_resched.down_read.walk_component.link_path_walk.part
1.67 ± 21% +53.0% 2.56 ± 19% perf-sched.sch_delay.avg.ms.__cond_resched.get_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode.do_syscall_64
1.67 ±167% -99.2% 0.01 ±223% perf-sched.sch_delay.avg.ms.__cond_resched.mutex_lock.perf_event_ctx_lock_nested.constprop.0
0.29 ± 38% -85.7% 0.04 ± 92% perf-sched.sch_delay.avg.ms.__cond_resched.mutex_lock_killable.pcpu_alloc_noprof.__percpu_counter_init_many.mm_init
0.02 ± 16% +45.6% 0.03 ± 26% perf-sched.sch_delay.avg.ms.irq_thread.kthread.ret_from_fork.ret_from_fork_asm
0.04 ± 36% -48.0% 0.02 ± 16% perf-sched.sch_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.04 ± 4% -19.5% 0.03 ± 7% perf-sched.sch_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
2.83 -31.6% 1.94 ± 33% perf-sched.sch_delay.avg.ms.wait_for_partner.fifo_open.do_dentry_open.vfs_open
2.43 ± 29% -54.1% 1.12 ± 76% perf-sched.sch_delay.max.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.alloc_pages_noprof.__pmd_alloc
1.87 ± 9% -63.2% 0.69 ±112% perf-sched.sch_delay.max.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.alloc_pages_noprof.__pud_alloc
5.07 ± 12% -62.3% 1.91 ± 85% perf-sched.sch_delay.max.ms.__cond_resched.__kmalloc_cache_noprof.vmstat_start.seq_read_iter.proc_reg_read_iter
367.03 ±138% -98.5% 5.38 ± 16% perf-sched.sch_delay.max.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
4.00 ± 9% -44.5% 2.22 ± 55% perf-sched.sch_delay.max.ms.__cond_resched.down_read.walk_component.link_path_walk.part
3.99 -21.6% 3.13 ± 12% perf-sched.sch_delay.max.ms.__cond_resched.kmem_cache_alloc_noprof.alloc_empty_file.path_openat.do_filp_open
7.04 ±199% -99.8% 0.01 ±223% perf-sched.sch_delay.max.ms.__cond_resched.mutex_lock.perf_event_ctx_lock_nested.constprop.0
1.19 ± 40% -84.8% 0.18 ±174% perf-sched.sch_delay.max.ms.__cond_resched.mutex_lock_killable.pcpu_alloc_noprof.__percpu_counter_init_many.mm_init
4.01 -74.9% 1.01 ±150% perf-sched.sch_delay.max.ms.__cond_resched.put_files_struct.do_exit.do_group_exit.__x64_sys_exit_group
21.67 ±141% -96.6% 0.73 ± 54% perf-sched.sch_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
757.83 ± 60% -51.4% 368.37 ±127% perf-sched.total_sch_delay.max.ms
4.53 ± 12% -23.3% 3.47 ± 12% perf-sched.wait_and_delay.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
7.40 ± 16% -28.8% 5.27 ± 28% perf-sched.wait_and_delay.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.96 ± 9% -18.6% 3.22 ± 12% perf-sched.wait_time.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
2.51 ± 12% -57.6% 1.06 ± 58% perf-sched.wait_time.avg.ms.__cond_resched.down_read.walk_component.link_path_walk.part
1.67 ± 21% +53.0% 2.56 ± 19% perf-sched.wait_time.avg.ms.__cond_resched.get_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode.do_syscall_64
1.67 ±167% -99.2% 0.01 ±223% perf-sched.wait_time.avg.ms.__cond_resched.mutex_lock.perf_event_ctx_lock_nested.constprop.0
59.25 ±208% -98.3% 1.00 ±152% perf-sched.wait_time.avg.ms.__cond_resched.put_files_struct.do_exit.do_group_exit.__x64_sys_exit_group
6.89 ± 17% -30.8% 4.76 ± 31% perf-sched.wait_time.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
447.08 ± 4% -7.0% 415.80 ± 5% perf-sched.wait_time.avg.ms.irq_thread.kthread.ret_from_fork.ret_from_fork_asm
3.45 ± 9% -18.8% 2.80 ± 9% perf-sched.wait_time.avg.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
2.78 ± 2% -33.6% 1.84 ± 34% perf-sched.wait_time.avg.ms.wait_for_partner.fifo_open.do_dentry_open.vfs_open
1.87 ± 9% -63.2% 0.69 ±112% perf-sched.wait_time.max.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.alloc_pages_noprof.__pud_alloc
4.00 ± 9% -45.6% 2.18 ± 57% perf-sched.wait_time.max.ms.__cond_resched.down_read.walk_component.link_path_walk.part
3.99 -21.6% 3.13 ± 12% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc_noprof.alloc_empty_file.path_openat.do_filp_open
7.04 ±199% -99.8% 0.01 ±223% perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.perf_event_ctx_lock_nested.constprop.0
170.02 ±218% -99.4% 1.00 ±152% perf-sched.wait_time.max.ms.__cond_resched.put_files_struct.do_exit.do_group_exit.__x64_sys_exit_group
37.94 -1.1 36.80 perf-profile.calltrace.cycles-pp.__sigqueue_free.get_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode.do_syscall_64
37.92 -1.1 36.79 perf-profile.calltrace.cycles-pp.do_dec_rlimit_put_ucounts.__sigqueue_free.get_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode
40.38 -0.8 39.53 perf-profile.calltrace.cycles-pp.get_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.48 ± 3% +0.2 1.66 perf-profile.calltrace.cycles-pp.refill_obj_stock.__memcg_slab_free_hook.kmem_cache_free.get_signal.arch_do_signal_or_restart
1.41 ± 4% +0.2 1.60 ± 3% perf-profile.calltrace.cycles-pp.obj_cgroup_charge.__memcg_slab_post_alloc_hook.kmem_cache_alloc_noprof.__send_signal_locked.force_sig_info_to_task
1.55 ± 3% +0.2 1.75 ± 2% perf-profile.calltrace.cycles-pp.__memcg_slab_post_alloc_hook.kmem_cache_alloc_noprof.__send_signal_locked.force_sig_info_to_task.syscall_user_dispatch
1.58 ± 3% +0.2 1.78 perf-profile.calltrace.cycles-pp.__memcg_slab_free_hook.kmem_cache_free.get_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode
1.47 ± 3% +0.2 1.67 ± 4% perf-profile.calltrace.cycles-pp.x64_setup_rt_frame.handle_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode.do_syscall_64
1.66 ± 3% +0.2 1.87 perf-profile.calltrace.cycles-pp.kmem_cache_free.get_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode.do_syscall_64
1.62 ± 3% +0.2 1.84 perf-profile.calltrace.cycles-pp.kmem_cache_alloc_noprof.__send_signal_locked.force_sig_info_to_task.syscall_user_dispatch.syscall_trace_enter
1.66 ± 4% +0.4 2.09 ± 6% perf-profile.calltrace.cycles-pp.fpregs_mark_activate.fpu__clear_user_states.handle_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode
2.39 ± 3% +0.5 2.84 ± 3% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.stress_sigsys_handler
2.42 ± 4% +0.5 2.87 ± 2% perf-profile.calltrace.cycles-pp.complete_signal.__send_signal_locked.force_sig_info_to_task.syscall_user_dispatch.syscall_trace_enter
1.96 ± 4% +0.5 2.42 ± 5% perf-profile.calltrace.cycles-pp.fpu__clear_user_states.handle_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode.do_syscall_64
2.39 ± 3% +0.5 2.85 ± 3% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.stress_sigsys_handler
2.39 ± 3% +0.5 2.85 ± 3% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.stress_sigsys_handler
2.20 ± 3% +0.5 2.67 ± 3% perf-profile.calltrace.cycles-pp.arch_do_signal_or_restart.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.stress_sigsys_handler
6.00 ± 5% +0.6 6.62 perf-profile.calltrace.cycles-pp.stress_sigsys_handler
3.82 ± 3% +0.7 4.53 perf-profile.calltrace.cycles-pp.handle_signal.arch_do_signal_or_restart.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
37.93 -1.1 36.78 perf-profile.children.cycles-pp.do_dec_rlimit_put_ucounts
37.94 -1.1 36.81 perf-profile.children.cycles-pp.__sigqueue_free
40.40 -0.8 39.56 perf-profile.children.cycles-pp.get_signal
0.29 ± 6% -0.0 0.24 ± 7% perf-profile.children.cycles-pp.task_work_run
0.28 ± 6% -0.0 0.23 ± 7% perf-profile.children.cycles-pp.task_mm_cid_work
0.41 ± 5% -0.0 0.38 ± 3% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
0.13 ± 3% +0.0 0.15 ± 4% perf-profile.children.cycles-pp.__get_user_nocheck_8
0.18 ± 4% +0.0 0.20 ± 3% perf-profile.children.cycles-pp._copy_from_user
0.18 ± 2% +0.0 0.20 ± 3% perf-profile.children.cycles-pp.check_xstate_in_sigframe
0.16 ± 3% +0.0 0.19 perf-profile.children.cycles-pp.__put_user_nocheck_4
0.18 ± 2% +0.0 0.21 ± 4% perf-profile.children.cycles-pp.copy_siginfo_to_user
0.31 ± 3% +0.0 0.36 ± 2% perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.37 ± 2% +0.1 0.42 ± 3% perf-profile.children.cycles-pp.__restore_fpregs_from_user
0.44 ± 2% +0.1 0.50 perf-profile.children.cycles-pp.entry_SYSCALL_64
0.47 ± 3% +0.1 0.53 ± 3% perf-profile.children.cycles-pp.restore_fpregs_from_user
0.70 ± 3% +0.1 0.79 ± 4% perf-profile.children.cycles-pp.copy_fpstate_to_sigframe
0.69 ± 4% +0.1 0.78 ± 4% perf-profile.children.cycles-pp.fpu__restore_sig
0.85 ± 5% +0.1 0.95 ± 4% perf-profile.children.cycles-pp.restore_sigcontext
1.48 ± 3% +0.2 1.66 perf-profile.children.cycles-pp.refill_obj_stock
1.41 ± 4% +0.2 1.60 ± 3% perf-profile.children.cycles-pp.obj_cgroup_charge
1.58 ± 3% +0.2 1.78 perf-profile.children.cycles-pp.__memcg_slab_free_hook
1.55 ± 3% +0.2 1.76 ± 2% perf-profile.children.cycles-pp.__memcg_slab_post_alloc_hook
1.48 ± 3% +0.2 1.69 ± 4% perf-profile.children.cycles-pp.x64_setup_rt_frame
1.67 ± 3% +0.2 1.88 perf-profile.children.cycles-pp.kmem_cache_free
1.63 ± 3% +0.2 1.84 perf-profile.children.cycles-pp.kmem_cache_alloc_noprof
1.73 ± 4% +0.4 2.16 ± 6% perf-profile.children.cycles-pp.fpregs_mark_activate
2.42 ± 4% +0.5 2.88 ± 2% perf-profile.children.cycles-pp.complete_signal
1.98 ± 4% +0.5 2.44 ± 5% perf-profile.children.cycles-pp.fpu__clear_user_states
4.44 ± 4% +0.5 4.93 perf-profile.children.cycles-pp.stress_sigsys_handler
3.82 ± 3% +0.7 4.54 perf-profile.children.cycles-pp.handle_signal
37.92 -1.1 36.78 perf-profile.self.cycles-pp.do_dec_rlimit_put_ucounts
0.26 ± 7% -0.0 0.23 ± 8% perf-profile.self.cycles-pp.task_mm_cid_work
0.13 ± 3% +0.0 0.14 ± 3% perf-profile.self.cycles-pp.__get_user_nocheck_8
0.09 ± 4% +0.0 0.11 perf-profile.self.cycles-pp.copy_siginfo_to_user
0.17 ± 5% +0.0 0.19 ± 5% perf-profile.self.cycles-pp.__get_user_nocheck_1
0.18 ± 4% +0.0 0.20 ± 5% perf-profile.self.cycles-pp._copy_from_user
0.15 ± 6% +0.0 0.18 ± 5% perf-profile.self.cycles-pp.do_syscall_64
0.16 ± 3% +0.0 0.18 ± 2% perf-profile.self.cycles-pp.__put_user_nocheck_4
0.22 ± 4% +0.0 0.25 ± 2% perf-profile.self.cycles-pp.prctl
0.16 ± 2% +0.0 0.19 ± 4% perf-profile.self.cycles-pp.x64_setup_rt_frame
0.29 ± 3% +0.0 0.32 ± 5% perf-profile.self.cycles-pp.syscall_exit_to_user_mode
0.02 ±141% +0.0 0.06 ± 9% perf-profile.self.cycles-pp.__local_bh_enable_ip
0.30 ± 3% +0.0 0.35 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.36 ± 2% +0.1 0.42 ± 2% perf-profile.self.cycles-pp.__restore_fpregs_from_user
0.53 ± 2% +0.1 0.60 ± 4% perf-profile.self.cycles-pp.copy_fpstate_to_sigframe
1.40 ± 4% +0.2 1.59 ± 3% perf-profile.self.cycles-pp.obj_cgroup_charge
1.48 ± 3% +0.2 1.66 perf-profile.self.cycles-pp.refill_obj_stock
1.70 ± 4% +0.4 2.13 ± 6% perf-profile.self.cycles-pp.fpregs_mark_activate
2.34 ± 4% +0.5 2.79 ± 3% perf-profile.self.cycles-pp.complete_signal
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
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