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X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR11MB4648 X-OriginatorOrg: intel.com Hello, kernel test robot noticed a -1.2% regression of netperf.Throughput_Mbps on: commit: 7ee988770326fca440472200c3eb58935fe712f6 ("timers: Implement the hierarchical pull model") https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git timers/core testcase: netperf test machine: 128 threads 2 sockets Intel(R) Xeon(R) Gold 6338 CPU @ 2.00GHz (Ice Lake) with 256G memory parameters: ip: ipv4 runtime: 300s nr_threads: 200% cluster: cs-localhost test: SCTP_STREAM cpufreq_governor: performance 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 | Closes: https://lore.kernel.org/oe-lkp/202403011511.24defbbd-oliver.sang@intel.com Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240301/202403011511.24defbbd-oliver.sang@intel.com ========================================================================================= cluster/compiler/cpufreq_governor/ip/kconfig/nr_threads/rootfs/runtime/tbox_group/test/testcase: cs-localhost/gcc-12/performance/ipv4/x86_64-rhel-8.3/200%/debian-12-x86_64-20240206.cgz/300s/lkp-icl-2sp2/SCTP_STREAM/netperf commit: 57e95a5c41 ("timers: Introduce function to check timer base is_idle flag") 7ee9887703 ("timers: Implement the hierarchical pull model") 57e95a5c4117dc6a 7ee988770326fca440472200c3e ---------------- --------------------------- %stddev %change %stddev \ | \ 5232 +6.8% 5589 vmstat.system.in 0.03 +0.0 0.04 mpstat.cpu.all.soft% 0.04 +0.0 0.08 mpstat.cpu.all.sys% 201.33 ? 3% -34.1% 132.67 ? 7% perf-c2c.DRAM.remote 187.83 ? 3% -28.7% 133.83 ? 12% perf-c2c.HITM.local 40.67 ? 7% -57.4% 17.33 ? 26% perf-c2c.HITM.remote 4984 +4.9% 5227 proc-vmstat.nr_shmem 100999 +3.6% 104640 proc-vmstat.nr_slab_unreclaimable 8114 ? 2% +11.0% 9005 ? 2% proc-vmstat.pgactivate 20.00 +1907.5% 401.50 ? 79% proc-vmstat.unevictable_pgs_culled 965754 -10.3% 866147 sched_debug.cpu.avg_idle.avg 101797 ? 12% +41.8% 144376 ? 4% sched_debug.cpu.avg_idle.stddev 0.00 ? 22% -40.7% 0.00 ? 18% sched_debug.cpu.next_balance.stddev 886.06 ? 18% +339.7% 3895 ? 8% sched_debug.cpu.nr_switches.min 5474 ? 12% -23.9% 4164 ? 10% sched_debug.cpu.nr_switches.stddev 4.10 -1.2% 4.05 netperf.ThroughputBoth_Mbps 1049 -1.2% 1037 netperf.ThroughputBoth_total_Mbps 4.10 -1.2% 4.05 netperf.Throughput_Mbps 1049 -1.2% 1037 netperf.Throughput_total_Mbps 102.17 ? 8% +887.4% 1008 ? 3% netperf.time.involuntary_context_switches 2.07 ? 3% +388.2% 10.11 netperf.time.system_time 15.14 +18.8% 17.99 perf-stat.i.MPKI 1.702e+08 +1.6% 1.729e+08 perf-stat.i.branch-instructions 1.68 +0.0 1.71 perf-stat.i.branch-miss-rate% 18.46 +3.1 21.57 perf-stat.i.cache-miss-rate% 4047319 +19.7% 4846291 perf-stat.i.cache-misses 22007366 +3.2% 22707969 perf-stat.i.cache-references 1.84 +17.0% 2.15 perf-stat.i.cpi 9.159e+08 +10.4% 1.011e+09 perf-stat.i.cpu-cycles 161.08 +183.7% 456.91 ? 2% perf-stat.i.cpu-migrations 190.71 -1.6% 187.66 perf-stat.i.cycles-between-cache-misses 8.434e+08 +1.2% 8.535e+08 perf-stat.i.instructions 0.61 -10.6% 0.54 perf-stat.i.ipc 4.79 +18.4% 5.66 perf-stat.overall.MPKI 4.21 -0.1 4.14 perf-stat.overall.branch-miss-rate% 18.39 +2.9 21.33 perf-stat.overall.cache-miss-rate% 1.09 +9.1% 1.19 perf-stat.overall.cpi 227.07 -7.8% 209.29 perf-stat.overall.cycles-between-cache-misses 0.92 -8.3% 0.84 perf-stat.overall.ipc 1379820 +2.3% 1411871 perf-stat.overall.path-length 1.702e+08 +1.5% 1.728e+08 perf-stat.ps.branch-instructions 4035389 +19.7% 4830446 perf-stat.ps.cache-misses 21948285 +3.2% 22642774 perf-stat.ps.cache-references 9.163e+08 +10.3% 1.011e+09 perf-stat.ps.cpu-cycles 160.61 +183.5% 455.30 ? 2% perf-stat.ps.cpu-migrations 8.433e+08 +1.1% 8.529e+08 perf-stat.ps.instructions 2.551e+11 +1.5% 2.589e+11 perf-stat.total.instructions 31.82 ? 3% -12.9 18.91 ? 5% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.acpi_safe_halt.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter 36.90 ? 2% -12.1 24.83 ? 7% perf-profile.calltrace.cycles-pp.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle 27.61 ? 3% -11.9 15.68 ? 8% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt.acpi_idle_enter.cpuidle_enter_state 31.75 ? 2% -11.5 20.25 ? 8% perf-profile.calltrace.cycles-pp.acpi_safe_halt.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call 24.39 ? 3% -10.0 14.38 ? 8% perf-profile.calltrace.cycles-pp.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt.acpi_idle_enter 24.33 ? 3% -10.0 14.36 ? 8% perf-profile.calltrace.cycles-pp.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt 21.00 ? 3% -9.2 11.84 ? 9% perf-profile.calltrace.cycles-pp.net_rx_action.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt 20.97 ? 3% -9.1 11.83 ? 9% perf-profile.calltrace.cycles-pp.process_backlog.__napi_poll.net_rx_action.__do_softirq.irq_exit_rcu 20.97 ? 3% -9.1 11.84 ? 9% perf-profile.calltrace.cycles-pp.__napi_poll.net_rx_action.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt 4.92 ? 10% -4.0 0.91 ? 28% perf-profile.calltrace.cycles-pp._nohz_idle_balance.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify 1.81 ? 13% -1.5 0.29 ?100% perf-profile.calltrace.cycles-pp.run_timer_softirq.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt 9.76 ? 7% -1.5 8.26 ? 8% perf-profile.calltrace.cycles-pp.sctp_outq_flush.sctp_cmd_interpreter.sctp_do_sm.sctp_assoc_bh_rcv.sctp_rcv 5.08 ? 7% -1.0 4.12 ? 12% perf-profile.calltrace.cycles-pp.sctp_outq_flush_data.sctp_outq_flush.sctp_cmd_interpreter.sctp_do_sm.sctp_assoc_bh_rcv 2.99 ? 4% -0.8 2.22 ? 16% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe 2.98 ? 4% -0.8 2.22 ? 16% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe 1.66 ? 7% -0.7 0.95 ? 11% perf-profile.calltrace.cycles-pp.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt.acpi_idle_enter 1.58 ? 5% -0.7 0.90 ? 10% perf-profile.calltrace.cycles-pp.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt 1.05 ? 9% -0.5 0.52 ? 49% perf-profile.calltrace.cycles-pp.sctp_cmd_interpreter.sctp_do_sm.sctp_generate_timeout_event.call_timer_fn.__run_timers 0.95 ? 14% -0.5 0.50 ? 46% perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt 0.90 ? 14% -0.4 0.53 ? 47% perf-profile.calltrace.cycles-pp.schedule.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm 0.90 ? 14% -0.4 0.52 ? 47% perf-profile.calltrace.cycles-pp.__schedule.schedule.smpboot_thread_fn.kthread.ret_from_fork 0.64 ? 17% -0.4 0.27 ?100% perf-profile.calltrace.cycles-pp.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.64 ? 17% -0.4 0.27 ?100% perf-profile.calltrace.cycles-pp.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64 0.96 ? 8% -0.3 0.65 ? 45% perf-profile.calltrace.cycles-pp.__x64_sys_exit_group.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.96 ? 8% -0.3 0.64 ? 45% perf-profile.calltrace.cycles-pp.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.96 ? 8% -0.3 0.65 ? 45% perf-profile.calltrace.cycles-pp.do_group_exit.__x64_sys_exit_group.do_syscall_64.entry_SYSCALL_64_after_hwframe 1.53 ? 4% -0.3 1.22 ? 12% perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read 1.53 ? 4% -0.3 1.24 ? 12% perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read 1.62 ? 4% -0.3 1.33 ? 12% perf-profile.calltrace.cycles-pp.read 1.57 ? 5% -0.3 1.28 ? 13% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.read 1.57 ? 5% -0.3 1.28 ? 13% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.read 1.23 ? 8% -0.2 1.03 ? 10% perf-profile.calltrace.cycles-pp.tick_nohz_stop_tick.tick_nohz_idle_stop_tick.cpuidle_idle_call.do_idle.cpu_startup_entry 0.50 ? 45% +0.4 0.92 ? 14% perf-profile.calltrace.cycles-pp.rebalance_domains._nohz_idle_balance.__do_softirq.irq_exit_rcu.sysvec_call_function_single 0.45 ? 72% +0.5 0.95 ? 17% perf-profile.calltrace.cycles-pp.skb_release_data.kfree_skb_reason.sctp_recvmsg.inet_recvmsg.sock_recvmsg 0.75 ? 46% +0.5 1.26 ? 24% perf-profile.calltrace.cycles-pp.skb_release_data.consume_skb.sctp_chunk_put.sctp_ulpevent_free.sctp_recvmsg 0.82 ? 45% +0.5 1.36 ? 22% perf-profile.calltrace.cycles-pp.consume_skb.sctp_chunk_put.sctp_ulpevent_free.sctp_recvmsg.inet_recvmsg 1.08 ? 12% +0.6 1.68 ? 14% perf-profile.calltrace.cycles-pp.irq_exit_rcu.sysvec_call_function_single.asm_sysvec_call_function_single.acpi_safe_halt.acpi_idle_enter 1.08 ? 12% +0.6 1.68 ? 14% perf-profile.calltrace.cycles-pp._nohz_idle_balance.__do_softirq.irq_exit_rcu.sysvec_call_function_single.asm_sysvec_call_function_single 1.08 ? 12% +0.6 1.68 ? 14% perf-profile.calltrace.cycles-pp.__do_softirq.irq_exit_rcu.sysvec_call_function_single.asm_sysvec_call_function_single.acpi_safe_halt 0.18 ?141% +0.6 0.83 ? 14% perf-profile.calltrace.cycles-pp.load_balance.rebalance_domains._nohz_idle_balance.__do_softirq.irq_exit_rcu 0.00 +0.7 0.66 ? 18% perf-profile.calltrace.cycles-pp.sctp_generate_timeout_event.call_timer_fn.__run_timers.timer_expire_remote.tmigr_handle_remote_up 0.30 ?101% +0.7 0.97 ? 28% perf-profile.calltrace.cycles-pp.__free_pages_ok.skb_release_data.consume_skb.sctp_chunk_put.sctp_ulpevent_free 0.00 +0.8 0.77 ? 18% perf-profile.calltrace.cycles-pp.call_timer_fn.__run_timers.timer_expire_remote.tmigr_handle_remote_up.tmigr_handle_remote 0.00 +0.8 0.80 ? 17% perf-profile.calltrace.cycles-pp.__free_pages_ok.skb_release_data.consume_skb.sctp_chunk_put.sctp_datamsg_put 3.45 ? 14% +0.8 4.26 ? 11% perf-profile.calltrace.cycles-pp.__memcpy.skb_copy_bits.skb_copy.sctp_make_reassembled_event.sctp_ulpq_tail_data 3.46 ? 14% +0.8 4.28 ? 10% perf-profile.calltrace.cycles-pp.skb_copy_bits.skb_copy.sctp_make_reassembled_event.sctp_ulpq_tail_data.sctp_cmd_interpreter 0.00 +0.8 0.82 ? 18% perf-profile.calltrace.cycles-pp.__run_timers.timer_expire_remote.tmigr_handle_remote_up.tmigr_handle_remote.__do_softirq 0.00 +0.8 0.83 ? 17% perf-profile.calltrace.cycles-pp.timer_expire_remote.tmigr_handle_remote_up.tmigr_handle_remote.__do_softirq.irq_exit_rcu 0.00 +0.8 0.84 ? 31% perf-profile.calltrace.cycles-pp.free_one_page.__free_pages_ok.skb_release_data.consume_skb.sctp_chunk_put 4.44 ? 14% +0.9 5.36 ? 10% perf-profile.calltrace.cycles-pp.sctp_make_reassembled_event.sctp_ulpq_tail_data.sctp_cmd_interpreter.sctp_do_sm.sctp_assoc_bh_rcv 0.00 +0.9 0.94 ? 16% perf-profile.calltrace.cycles-pp.skb_release_data.consume_skb.sctp_chunk_put.sctp_datamsg_put.sctp_chunk_free 4.33 ? 14% +0.9 5.27 ? 10% perf-profile.calltrace.cycles-pp.skb_copy.sctp_make_reassembled_event.sctp_ulpq_tail_data.sctp_cmd_interpreter.sctp_do_sm 2.42 ? 9% +1.1 3.56 ? 17% perf-profile.calltrace.cycles-pp.do_softirq.__local_bh_enable_ip.__dev_queue_xmit.ip_finish_output2.__ip_queue_xmit 2.41 ? 9% +1.1 3.55 ? 17% perf-profile.calltrace.cycles-pp.__do_softirq.do_softirq.__local_bh_enable_ip.__dev_queue_xmit.ip_finish_output2 2.42 ? 9% +1.2 3.58 ? 17% perf-profile.calltrace.cycles-pp.__local_bh_enable_ip.__dev_queue_xmit.ip_finish_output2.__ip_queue_xmit.sctp_packet_transmit 2.34 ? 10% +1.2 3.50 ? 17% perf-profile.calltrace.cycles-pp.net_rx_action.__do_softirq.do_softirq.__local_bh_enable_ip.__dev_queue_xmit 2.56 ? 8% +1.2 3.74 ? 17% perf-profile.calltrace.cycles-pp.__dev_queue_xmit.ip_finish_output2.__ip_queue_xmit.sctp_packet_transmit.sctp_outq_flush 1.72 ? 15% +1.2 2.91 ? 19% perf-profile.calltrace.cycles-pp.ip_finish_output2.__ip_queue_xmit.sctp_packet_transmit.sctp_outq_flush.sctp_assoc_rwnd_increase 1.76 ? 14% +1.2 2.97 ? 18% perf-profile.calltrace.cycles-pp.__ip_queue_xmit.sctp_packet_transmit.sctp_outq_flush.sctp_assoc_rwnd_increase.sctp_ulpevent_free 1.88 ? 13% +1.2 3.10 ? 18% perf-profile.calltrace.cycles-pp.sctp_packet_transmit.sctp_outq_flush.sctp_assoc_rwnd_increase.sctp_ulpevent_free.sctp_recvmsg 2.34 ? 9% +1.2 3.57 ? 19% perf-profile.calltrace.cycles-pp.process_backlog.__napi_poll.net_rx_action.__do_softirq.do_softirq 2.34 ? 10% +1.2 3.57 ? 19% perf-profile.calltrace.cycles-pp.__napi_poll.net_rx_action.__do_softirq.do_softirq.__local_bh_enable_ip 1.98 ? 13% +1.3 3.23 ? 19% perf-profile.calltrace.cycles-pp.sctp_outq_flush.sctp_assoc_rwnd_increase.sctp_ulpevent_free.sctp_recvmsg.inet_recvmsg 2.23 ? 10% +1.3 3.50 ? 19% perf-profile.calltrace.cycles-pp.sctp_assoc_rwnd_increase.sctp_ulpevent_free.sctp_recvmsg.inet_recvmsg.sock_recvmsg 0.00 +1.4 1.37 ? 9% perf-profile.calltrace.cycles-pp.tmigr_handle_remote_up.tmigr_handle_remote.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt 0.00 +1.4 1.38 ? 10% perf-profile.calltrace.cycles-pp.tmigr_handle_remote.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt 3.52 ? 7% +1.8 5.30 ? 15% perf-profile.calltrace.cycles-pp.sctp_ulpevent_free.sctp_recvmsg.inet_recvmsg.sock_recvmsg.____sys_recvmsg 4.94 ? 5% +5.6 10.58 ? 16% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork.ret_from_fork_asm 4.94 ? 5% +5.6 10.58 ? 16% perf-profile.calltrace.cycles-pp.ret_from_fork.ret_from_fork_asm 4.94 ? 5% +5.6 10.58 ? 16% perf-profile.calltrace.cycles-pp.ret_from_fork_asm 2.83 ? 9% +5.9 8.73 ? 18% perf-profile.calltrace.cycles-pp.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm 1.73 ? 12% +6.2 7.93 ? 18% perf-profile.calltrace.cycles-pp.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm 1.73 ? 12% +6.2 7.93 ? 18% perf-profile.calltrace.cycles-pp.__do_softirq.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork 1.70 ? 13% +6.2 7.91 ? 18% perf-profile.calltrace.cycles-pp.process_backlog.__napi_poll.net_rx_action.__do_softirq.run_ksoftirqd 1.70 ? 13% +6.2 7.91 ? 18% perf-profile.calltrace.cycles-pp.__napi_poll.net_rx_action.__do_softirq.run_ksoftirqd.smpboot_thread_fn 1.70 ? 12% +6.2 7.92 ? 18% perf-profile.calltrace.cycles-pp.net_rx_action.__do_softirq.run_ksoftirqd.smpboot_thread_fn.kthread 0.00 +10.2 10.24 ? 89% perf-profile.calltrace.cycles-pp.poll_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle 36.91 ? 2% -12.1 24.83 ? 7% perf-profile.children.cycles-pp.acpi_idle_enter 36.80 ? 2% -12.0 24.80 ? 7% perf-profile.children.cycles-pp.acpi_safe_halt 29.95 ? 3% -11.8 18.19 ? 7% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt 27.78 ? 3% -11.4 16.39 ? 8% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt 25.75 ? 2% -9.1 16.65 ? 9% perf-profile.children.cycles-pp.irq_exit_rcu 5.07 ? 3% -3.4 1.71 ? 12% perf-profile.children.cycles-pp._raw_spin_lock 6.04 ? 8% -3.3 2.70 ? 17% perf-profile.children.cycles-pp._nohz_idle_balance 2.80 ? 6% -2.3 0.51 ? 31% perf-profile.children.cycles-pp.raw_spin_rq_lock_nested 1.83 ? 13% -1.3 0.51 ? 30% perf-profile.children.cycles-pp.run_timer_softirq 5.62 ? 5% -1.1 4.52 ? 10% perf-profile.children.cycles-pp.sctp_outq_flush_data 1.40 ? 13% -1.0 0.38 ? 25% perf-profile.children.cycles-pp.tick_irq_enter 1.44 ? 13% -1.0 0.44 ? 18% perf-profile.children.cycles-pp.irq_enter_rcu 1.77 ? 11% -1.0 0.78 ? 20% perf-profile.children.cycles-pp.__mod_timer 1.36 ? 15% -0.9 0.48 ? 24% perf-profile.children.cycles-pp.get_nohz_timer_target 0.97 ? 15% -0.9 0.10 ? 38% perf-profile.children.cycles-pp.tick_do_update_jiffies64 1.46 ? 11% -0.9 0.60 ? 23% perf-profile.children.cycles-pp.sctp_transport_reset_t3_rtx 1.53 ? 7% -0.6 0.92 ? 21% perf-profile.children.cycles-pp.update_blocked_averages 1.00 ? 27% -0.5 0.45 ? 32% perf-profile.children.cycles-pp.update_rq_clock_task 1.73 ? 7% -0.5 1.21 ? 7% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt 1.65 ? 5% -0.5 1.14 ? 5% perf-profile.children.cycles-pp.hrtimer_interrupt 1.94 ? 6% -0.4 1.56 ? 13% perf-profile.children.cycles-pp.vfs_read 1.16 ? 10% -0.3 0.84 ? 19% perf-profile.children.cycles-pp.sctp_generate_timeout_event 0.66 ? 12% -0.3 0.37 ? 17% perf-profile.children.cycles-pp.update_rq_clock 0.99 ? 8% -0.3 0.73 ? 20% perf-profile.children.cycles-pp.__x64_sys_exit_group 0.99 ? 8% -0.3 0.73 ? 20% perf-profile.children.cycles-pp.do_group_exit 0.99 ? 8% -0.3 0.73 ? 20% perf-profile.children.cycles-pp.do_exit 0.34 ? 17% -0.2 0.12 ? 46% perf-profile.children.cycles-pp.run_rebalance_domains 0.28 ? 23% -0.2 0.07 ? 83% perf-profile.children.cycles-pp.__release_sock 1.24 ? 9% -0.2 1.03 ? 10% perf-profile.children.cycles-pp.tick_nohz_stop_tick 0.54 ? 17% -0.2 0.33 ? 20% perf-profile.children.cycles-pp.idle_cpu 0.30 ? 16% -0.2 0.10 ? 32% perf-profile.children.cycles-pp.ktime_get_update_offsets_now 1.09 ? 5% -0.2 0.88 ? 15% perf-profile.children.cycles-pp.seq_read_iter 0.26 ? 26% -0.2 0.07 ? 83% perf-profile.children.cycles-pp.sctp_backlog_rcv 0.35 ? 25% -0.2 0.15 ? 41% perf-profile.children.cycles-pp.release_sock 0.39 ? 19% -0.2 0.20 ? 11% perf-profile.children.cycles-pp.__memcg_slab_free_hook 0.72 ? 13% -0.2 0.54 ? 11% perf-profile.children.cycles-pp.ktime_get 0.50 ? 14% -0.2 0.33 ? 18% perf-profile.children.cycles-pp.do_vmi_align_munmap 0.39 ? 18% -0.2 0.23 ? 14% perf-profile.children.cycles-pp.sctp_inq_pop 0.51 ? 15% -0.2 0.35 ? 20% perf-profile.children.cycles-pp.do_vmi_munmap 0.46 ? 14% -0.1 0.32 ? 18% perf-profile.children.cycles-pp.proc_reg_read_iter 0.26 ? 20% -0.1 0.14 ? 29% perf-profile.children.cycles-pp.tlb_finish_mmu 0.46 ? 10% -0.1 0.34 ? 20% perf-profile.children.cycles-pp.sched_clock_cpu 0.22 ? 17% -0.1 0.12 ? 13% perf-profile.children.cycles-pp.should_we_balance 0.21 ? 13% -0.1 0.10 ? 20% perf-profile.children.cycles-pp.lookup_fast 0.36 ? 16% -0.1 0.25 ? 24% perf-profile.children.cycles-pp.__split_vma 0.29 ? 10% -0.1 0.20 ? 27% perf-profile.children.cycles-pp.wp_page_copy 0.54 ? 11% -0.1 0.45 ? 8% perf-profile.children.cycles-pp.balance_fair 0.14 ? 34% -0.1 0.06 ? 48% perf-profile.children.cycles-pp.vma_prepare 0.21 ? 28% -0.1 0.13 ? 27% perf-profile.children.cycles-pp.vsnprintf 0.14 ? 31% -0.1 0.05 ? 75% perf-profile.children.cycles-pp.irqentry_exit 0.15 ? 17% -0.1 0.07 ? 45% perf-profile.children.cycles-pp.__x64_sys_munmap 0.19 ? 19% -0.1 0.12 ? 21% perf-profile.children.cycles-pp.__vm_munmap 0.10 ? 22% -0.1 0.05 ? 72% perf-profile.children.cycles-pp.dev_attr_show 0.10 ? 22% -0.1 0.05 ? 72% perf-profile.children.cycles-pp.sysfs_kf_seq_show 0.22 ? 8% -0.0 0.17 ? 17% perf-profile.children.cycles-pp.diskstats_show 0.05 ? 72% +0.1 0.12 ? 23% perf-profile.children.cycles-pp.__fdget_pos 0.07 ? 52% +0.1 0.16 ? 44% perf-profile.children.cycles-pp.local_clock_noinstr 0.06 ?106% +0.1 0.18 ? 32% perf-profile.children.cycles-pp.timerqueue_add 0.00 +0.2 0.17 ? 24% perf-profile.children.cycles-pp.tmigr_inactive_up 0.00 +0.2 0.18 ? 23% perf-profile.children.cycles-pp.tmigr_cpu_deactivate 0.06 ? 23% +0.2 0.25 ? 15% perf-profile.children.cycles-pp.task_work_run 0.00 +0.2 0.19 ? 19% perf-profile.children.cycles-pp.tmigr_cpu_activate 0.00 +0.2 0.20 ? 20% perf-profile.children.cycles-pp.task_mm_cid_work 0.00 +0.4 0.38 ? 17% perf-profile.children.cycles-pp.tmigr_update_events 0.07 ? 24% +0.4 0.49 ? 13% perf-profile.children.cycles-pp.__get_next_timer_interrupt 2.29 ? 4% +0.7 3.02 ? 12% perf-profile.children.cycles-pp.__kmalloc_large_node 2.32 ? 4% +0.7 3.05 ? 13% perf-profile.children.cycles-pp.__kmalloc_node_track_caller 2.09 ? 8% +0.7 2.82 ? 13% perf-profile.children.cycles-pp.get_page_from_freelist 0.00 +0.9 0.86 ? 16% perf-profile.children.cycles-pp.timer_expire_remote 1.25 ? 10% +0.9 2.15 ? 14% perf-profile.children.cycles-pp.rmqueue 1.48 ? 14% +1.0 2.51 ? 13% perf-profile.children.cycles-pp.__free_pages_ok 0.58 ? 29% +1.1 1.66 ? 14% perf-profile.children.cycles-pp.free_one_page 3.00 ? 6% +1.1 4.11 ? 17% perf-profile.children.cycles-pp.ip_finish_output2 2.88 ? 6% +1.1 4.00 ? 17% perf-profile.children.cycles-pp.__dev_queue_xmit 2.23 ? 10% +1.3 3.50 ? 19% perf-profile.children.cycles-pp.sctp_assoc_rwnd_increase 0.00 +1.4 1.40 ? 8% perf-profile.children.cycles-pp.tmigr_handle_remote_up 0.00 +1.4 1.43 ? 9% perf-profile.children.cycles-pp.tmigr_handle_remote 2.43 ? 9% +1.5 3.91 ? 18% perf-profile.children.cycles-pp.do_softirq 2.46 ? 9% +1.5 3.95 ? 18% perf-profile.children.cycles-pp.__local_bh_enable_ip 2.16 ? 9% +1.7 3.87 ? 13% perf-profile.children.cycles-pp._raw_spin_lock_irqsave 3.53 ? 7% +1.8 5.30 ? 14% perf-profile.children.cycles-pp.sctp_ulpevent_free 5.02 ? 5% +5.6 10.65 ? 15% perf-profile.children.cycles-pp.ret_from_fork_asm 5.00 ? 4% +5.6 10.64 ? 15% perf-profile.children.cycles-pp.ret_from_fork 4.94 ? 5% +5.6 10.58 ? 16% perf-profile.children.cycles-pp.kthread 2.83 ? 9% +5.9 8.74 ? 18% perf-profile.children.cycles-pp.smpboot_thread_fn 1.73 ? 12% +6.2 7.93 ? 18% perf-profile.children.cycles-pp.run_ksoftirqd 0.02 ?141% +10.3 10.31 ? 88% perf-profile.children.cycles-pp.poll_idle 2.41 ? 5% -1.1 1.32 ? 10% perf-profile.self.cycles-pp._raw_spin_lock 1.11 ? 19% -0.7 0.37 ? 20% perf-profile.self.cycles-pp.get_nohz_timer_target 0.84 ? 28% -0.5 0.34 ? 30% perf-profile.self.cycles-pp.update_rq_clock_task 0.65 ? 23% -0.5 0.16 ? 34% perf-profile.self.cycles-pp._nohz_idle_balance 0.29 ? 16% -0.2 0.07 ? 62% perf-profile.self.cycles-pp.ktime_get_update_offsets_now 0.52 ? 19% -0.2 0.31 ? 21% perf-profile.self.cycles-pp.idle_cpu 0.43 ? 9% -0.2 0.23 ? 23% perf-profile.self.cycles-pp.update_rq_clock 0.25 ? 28% -0.1 0.12 ? 50% perf-profile.self.cycles-pp.__memcg_slab_free_hook 0.16 ? 34% -0.1 0.03 ?101% perf-profile.self.cycles-pp.need_update 0.16 ? 32% -0.1 0.06 ? 80% perf-profile.self.cycles-pp.call_cpuidle 0.12 ? 19% -0.1 0.04 ?101% perf-profile.self.cycles-pp.sctp_inq_pop 0.23 ? 22% -0.1 0.15 ? 42% perf-profile.self.cycles-pp.sctp_check_transmitted 0.13 ? 47% -0.1 0.06 ? 55% perf-profile.self.cycles-pp.all_vm_events 0.19 ? 14% -0.1 0.12 ? 25% perf-profile.self.cycles-pp.filemap_map_pages 0.05 ? 72% +0.1 0.11 ? 24% perf-profile.self.cycles-pp.__fdget_pos 0.08 ? 54% +0.1 0.16 ? 22% perf-profile.self.cycles-pp.sctp_skb_recv_datagram 0.00 +0.1 0.09 ? 31% perf-profile.self.cycles-pp.tmigr_cpu_activate 0.00 +0.2 0.18 ? 26% perf-profile.self.cycles-pp.task_mm_cid_work 0.02 ?141% +10.1 10.08 ? 90% perf-profile.self.cycles-pp.poll_idle 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