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4BEXw/11G+i6si8e1tPKutCBFIb5q7GzqOOTWOVc4SuuNqZYtpKgiNyTJ2scIVRkU4sjj+X8tpHWSUkGXVSizg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR11MB8122 X-OriginatorOrg: intel.com Hello, kernel test robot noticed a 2.7% improvement of netperf.Throughput_Mbps on: commit: 61f7fdf8fd00ce33d30ca3fae8d643c0850ce945 ("timers/migration: Fix ignored event due to missing CPU update") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master 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: 50% cluster: cs-localhost test: SCTP_STREAM cpufreq_governor: performance In addition to that, the commit also has significant impact on the following tests: +------------------+--------------------------------------------------------------------------------------------+ | testcase: change | netperf: netperf.Throughput_Mbps 1.1% improvement | | test machine | 128 threads 2 sockets Intel(R) Xeon(R) Gold 6338 CPU @ 2.00GHz (Ice Lake) with 256G memory | | test parameters | cluster=cs-localhost | | | cpufreq_governor=performance | | | ip=ipv4 | | | nr_threads=200% | | | runtime=300s | | | test=SCTP_STREAM | +------------------+--------------------------------------------------------------------------------------------+ Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240515/202405151553.6423572f-oliver.sang@intel.com ========================================================================================= cluster/compiler/cpufreq_governor/ip/kconfig/nr_threads/rootfs/runtime/tbox_group/test/testcase: cs-localhost/gcc-13/performance/ipv4/x86_64-rhel-8.3/50%/debian-12-x86_64-20240206.cgz/300s/lkp-icl-2sp2/SCTP_STREAM/netperf commit: cffaefd15a ("vdso: Use CONFIG_PAGE_SHIFT in vdso/datapage.h") 61f7fdf8fd ("timers/migration: Fix ignored event due to missing CPU update") cffaefd15a8f423c 61f7fdf8fd00ce33d30ca3fae8d ---------------- --------------------------- %stddev %change %stddev \ | \ 205059 ? 27% -57.6% 87009 ?102% numa-meminfo.node1.AnonHugePages 100.03 ? 27% -57.6% 42.42 ?102% numa-vmstat.node1.nr_anon_transparent_hugepages 0.01 +0.0 0.01 mpstat.cpu.all.soft% 0.03 ? 3% -0.0 0.03 ? 2% mpstat.cpu.all.sys% 1319042 +0.9% 1330457 proc-vmstat.numa_local 15112424 +2.3% 15464529 proc-vmstat.pgalloc_normal 15078290 +2.2% 15416220 proc-vmstat.pgfree 3.99 +2.7% 4.10 netperf.ThroughputBoth_Mbps 255.41 +2.7% 262.40 netperf.ThroughputBoth_total_Mbps 3.99 +2.7% 4.10 netperf.Throughput_Mbps 255.41 +2.7% 262.40 netperf.Throughput_total_Mbps 45617 +2.5% 46775 netperf.time.voluntary_context_switches 45152 +2.4% 46223 netperf.workload 3.72 ? 4% +65.0% 6.14 ? 5% perf-stat.i.MPKI 9.45 ? 3% +5.2 14.60 ? 4% perf-stat.i.cache-miss-rate% 771280 ? 3% +47.1% 1134581 ? 3% perf-stat.i.cache-misses 1.25 +2.4% 1.28 perf-stat.i.cpi 547.23 ? 4% -31.1% 376.90 ? 4% perf-stat.i.cycles-between-cache-misses 0.86 -2.2% 0.84 perf-stat.i.ipc 1.07 ? 3% +46.2% 1.56 ? 3% perf-stat.overall.MPKI 10.15 ? 3% +4.7 14.81 ? 3% perf-stat.overall.cache-miss-rate% 785.35 ? 3% -31.3% 539.92 ? 3% perf-stat.overall.cycles-between-cache-misses 769379 ? 3% +47.0% 1131341 ? 3% perf-stat.ps.cache-misses 0.99 ?180% +799.5% 8.94 ? 54% sched_debug.cfs_rq:/.left_deadline.avg 83.53 ?163% +1106.3% 1007 ? 58% sched_debug.cfs_rq:/.left_deadline.max 8.56 ?169% +962.5% 90.94 ? 56% sched_debug.cfs_rq:/.left_deadline.stddev 0.99 ?180% +792.4% 8.85 ? 55% sched_debug.cfs_rq:/.left_vruntime.avg 83.35 ?163% +1095.6% 996.57 ? 58% sched_debug.cfs_rq:/.left_vruntime.max 8.54 ?169% +953.5% 89.97 ? 56% sched_debug.cfs_rq:/.left_vruntime.stddev 0.99 ?180% +795.3% 8.88 ? 55% sched_debug.cfs_rq:/.right_vruntime.avg 83.35 ?163% +1095.6% 996.57 ? 58% sched_debug.cfs_rq:/.right_vruntime.max 8.54 ?169% +954.2% 90.03 ? 56% sched_debug.cfs_rq:/.right_vruntime.stddev 4.83 ? 8% +24.3% 6.01 ? 9% sched_debug.cpu.nr_uninterruptible.stddev 0.82 ? 12% -0.4 0.43 ? 71% perf-profile.calltrace.cycles-pp.__do_sys_clone.do_syscall_64.entry_SYSCALL_64_after_hwframe._Fork 0.82 ? 12% -0.4 0.43 ? 71% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe._Fork 0.82 ? 12% -0.4 0.43 ? 71% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe._Fork 0.82 ? 12% -0.4 0.43 ? 71% perf-profile.calltrace.cycles-pp.kernel_clone.__do_sys_clone.do_syscall_64.entry_SYSCALL_64_after_hwframe._Fork 0.86 ? 17% -0.3 0.60 ? 46% perf-profile.calltrace.cycles-pp.__kmalloc_large_node.__kmalloc_node_track_caller.kmalloc_reserve.__alloc_skb._sctp_make_chunk 0.98 ? 15% -0.3 0.73 ? 14% perf-profile.calltrace.cycles-pp._Fork 0.92 ? 23% +0.4 1.33 ? 15% perf-profile.calltrace.cycles-pp.__memcpy.skb_copy_bits.skb_copy.sctp_make_reassembled_event.sctp_ulpq_partial_delivery 0.92 ? 23% +0.4 1.33 ? 15% perf-profile.calltrace.cycles-pp.skb_copy_bits.skb_copy.sctp_make_reassembled_event.sctp_ulpq_partial_delivery.sctp_cmd_interpreter 13.20 ? 7% +2.1 15.35 ? 3% perf-profile.calltrace.cycles-pp.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt.acpi_idle_enter 13.12 ? 7% +2.2 15.28 ? 4% perf-profile.calltrace.cycles-pp.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt 8.72 ? 14% +2.5 11.20 ? 8% perf-profile.calltrace.cycles-pp.__napi_poll.net_rx_action.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt 8.71 ? 14% +2.5 11.20 ? 8% perf-profile.calltrace.cycles-pp.process_backlog.__napi_poll.net_rx_action.__do_softirq.irq_exit_rcu 8.72 ? 14% +2.5 11.21 ? 8% perf-profile.calltrace.cycles-pp.net_rx_action.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt 0.82 ? 12% -0.3 0.56 ? 22% perf-profile.children.cycles-pp.__do_sys_clone 1.00 ? 13% -0.2 0.75 ? 16% perf-profile.children.cycles-pp._Fork 0.69 ? 17% -0.2 0.45 ? 22% perf-profile.children.cycles-pp.mas_store_prealloc 0.54 ? 8% -0.2 0.30 ? 45% perf-profile.children.cycles-pp.mas_wr_store_entry 0.45 ? 15% -0.2 0.24 ? 49% perf-profile.children.cycles-pp.dup_mmap 0.40 ? 28% -0.2 0.23 ? 38% perf-profile.children.cycles-pp.create_elf_tables 0.29 ? 31% -0.2 0.13 ? 58% perf-profile.children.cycles-pp.folio_batch_move_lru 0.23 ? 27% -0.1 0.08 ? 70% perf-profile.children.cycles-pp.lru_add_drain_cpu 0.22 ? 33% -0.1 0.07 ? 91% perf-profile.children.cycles-pp.lru_add_drain 0.22 ? 27% -0.1 0.10 ? 58% perf-profile.children.cycles-pp.aa_sk_perm 0.23 ? 38% +0.2 0.40 ? 20% perf-profile.children.cycles-pp.quiet_vmstat 0.20 ? 45% +0.2 0.40 ? 20% perf-profile.children.cycles-pp.need_update 16.11 ? 6% +2.0 18.08 ? 5% perf-profile.children.cycles-pp.irq_exit_rcu 0.18 ? 41% -0.1 0.05 ? 44% perf-profile.self.cycles-pp.entry_SYSCALL_64 0.03 ?100% +0.1 0.12 ? 6% perf-profile.self.cycles-pp.perf_iterate_sb 0.17 ? 63% +0.2 0.36 ? 25% perf-profile.self.cycles-pp.__schedule 0.29 ? 42% +0.2 0.53 ? 28% perf-profile.self.cycles-pp.__free_pages_ok *************************************************************************************************** lkp-icl-2sp2: 128 threads 2 sockets Intel(R) Xeon(R) Gold 6338 CPU @ 2.00GHz (Ice Lake) with 256G memory ========================================================================================= cluster/compiler/cpufreq_governor/ip/kconfig/nr_threads/rootfs/runtime/tbox_group/test/testcase: cs-localhost/gcc-13/performance/ipv4/x86_64-rhel-8.3/200%/debian-12-x86_64-20240206.cgz/300s/lkp-icl-2sp2/SCTP_STREAM/netperf commit: cffaefd15a ("vdso: Use CONFIG_PAGE_SHIFT in vdso/datapage.h") 61f7fdf8fd ("timers/migration: Fix ignored event due to missing CPU update") cffaefd15a8f423c 61f7fdf8fd00ce33d30ca3fae8d ---------------- --------------------------- %stddev %change %stddev \ | \ 0.08 ? 2% -0.0 0.05 ? 6% mpstat.cpu.all.sys% 107327 -1.4% 105800 proc-vmstat.nr_slab_unreclaimable 136.33 ? 8% +47.3% 200.83 ? 6% perf-c2c.DRAM.remote 15.67 ? 14% +210.6% 48.67 ? 10% perf-c2c.HITM.remote 143276 ? 5% -23.3% 109924 ? 6% sched_debug.cpu.avg_idle.stddev 3791 ? 9% -61.3% 1467 ? 40% sched_debug.cpu.nr_switches.min 4.05 +1.1% 4.10 netperf.ThroughputBoth_Mbps 1037 +1.1% 1049 netperf.ThroughputBoth_total_Mbps 4.05 +1.1% 4.10 netperf.Throughput_Mbps 1037 +1.1% 1049 netperf.Throughput_total_Mbps 1000 ? 3% -79.5% 205.17 ? 25% netperf.time.involuntary_context_switches 10.06 -58.5% 4.18 ? 14% netperf.time.system_time 18.49 +13.8% 21.04 perf-stat.i.MPKI 1.736e+08 -1.4% 1.711e+08 perf-stat.i.branch-instructions 21.87 +3.0 24.84 perf-stat.i.cache-miss-rate% 4862812 +10.9% 5394912 perf-stat.i.cache-misses 22488461 -2.3% 21975605 perf-stat.i.cache-references 9.721e+08 -2.5% 9.482e+08 perf-stat.i.cpu-cycles 464.99 ? 2% -44.1% 260.00 ? 5% perf-stat.i.cpu-migrations 181.26 ? 2% -14.3% 155.42 perf-stat.i.cycles-between-cache-misses 8.602e+08 -1.5% 8.47e+08 perf-stat.i.instructions 5.64 +12.7% 6.36 perf-stat.overall.MPKI 21.61 +2.9 24.54 perf-stat.overall.cache-miss-rate% 200.48 -12.1% 176.18 perf-stat.overall.cycles-between-cache-misses 1423522 -2.7% 1385059 perf-stat.overall.path-length 1.734e+08 -1.4% 1.709e+08 perf-stat.ps.branch-instructions 4847041 +11.0% 5377964 perf-stat.ps.cache-misses 22424436 -2.3% 21912803 perf-stat.ps.cache-references 9.717e+08 -2.5% 9.475e+08 perf-stat.ps.cpu-cycles 463.38 ? 2% -44.1% 259.19 ? 5% perf-stat.ps.cpu-migrations 8.594e+08 -1.5% 8.462e+08 perf-stat.ps.instructions 2.611e+11 -1.9% 2.561e+11 perf-stat.total.instructions 12.30 ? 4% -7.1 5.15 ? 13% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork.ret_from_fork_asm 12.30 ? 4% -7.1 5.15 ? 13% perf-profile.calltrace.cycles-pp.ret_from_fork.ret_from_fork_asm 12.30 ? 4% -7.1 5.15 ? 13% perf-profile.calltrace.cycles-pp.ret_from_fork_asm 10.50 ? 7% -6.9 3.63 ? 15% perf-profile.calltrace.cycles-pp.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm 9.62 ? 7% -6.8 2.79 ? 20% perf-profile.calltrace.cycles-pp.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm 9.62 ? 7% -6.8 2.79 ? 20% perf-profile.calltrace.cycles-pp.__do_softirq.run_ksoftirqd.smpboot_thread_fn.kthread.ret_from_fork 9.56 ? 7% -6.8 2.76 ? 20% perf-profile.calltrace.cycles-pp.net_rx_action.__do_softirq.run_ksoftirqd.smpboot_thread_fn.kthread 9.55 ? 7% -6.8 2.76 ? 20% perf-profile.calltrace.cycles-pp.process_backlog.__napi_poll.net_rx_action.__do_softirq.run_ksoftirqd 9.55 ? 7% -6.8 2.76 ? 20% perf-profile.calltrace.cycles-pp.__napi_poll.net_rx_action.__do_softirq.run_ksoftirqd.smpboot_thread_fn 3.63 ? 11% -1.2 2.46 ? 9% perf-profile.calltrace.cycles-pp.sctp_skb_recv_datagram.sctp_recvmsg.inet_recvmsg.sock_recvmsg.____sys_recvmsg 2.78 ? 15% -1.1 1.70 ? 14% perf-profile.calltrace.cycles-pp.cpu_startup_entry.rest_init.start_kernel.x86_64_start_reservations.x86_64_start_kernel 2.78 ? 15% -1.1 1.70 ? 14% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.rest_init.start_kernel.x86_64_start_reservations 2.78 ? 15% -1.1 1.70 ? 14% perf-profile.calltrace.cycles-pp.rest_init.start_kernel.x86_64_start_reservations.x86_64_start_kernel.common_startup_64 2.78 ? 15% -1.1 1.70 ? 14% perf-profile.calltrace.cycles-pp.start_kernel.x86_64_start_reservations.x86_64_start_kernel.common_startup_64 2.78 ? 15% -1.1 1.70 ? 14% perf-profile.calltrace.cycles-pp.x86_64_start_kernel.common_startup_64 2.78 ? 15% -1.1 1.70 ? 14% perf-profile.calltrace.cycles-pp.x86_64_start_reservations.x86_64_start_kernel.common_startup_64 2.74 ? 15% -1.1 1.66 ? 15% perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.rest_init.start_kernel 2.69 ? 15% -1.1 1.64 ? 15% perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.rest_init 6.25 ? 2% -1.0 5.28 ? 5% perf-profile.calltrace.cycles-pp.skb_copy.sctp_make_reassembled_event.sctp_ulpq_tail_data.sctp_cmd_interpreter.sctp_do_sm 6.40 ? 2% -1.0 5.42 ? 5% perf-profile.calltrace.cycles-pp.sctp_make_reassembled_event.sctp_ulpq_tail_data.sctp_cmd_interpreter.sctp_do_sm.sctp_assoc_bh_rcv 2.19 ? 14% -0.9 1.27 ? 25% perf-profile.calltrace.cycles-pp._nohz_idle_balance.__do_softirq.irq_exit_rcu.sysvec_call_function_single.asm_sysvec_call_function_single 2.19 ? 14% -0.9 1.28 ? 25% perf-profile.calltrace.cycles-pp.__do_softirq.irq_exit_rcu.sysvec_call_function_single.asm_sysvec_call_function_single.acpi_safe_halt 2.19 ? 14% -0.9 1.28 ? 25% perf-profile.calltrace.cycles-pp.irq_exit_rcu.sysvec_call_function_single.asm_sysvec_call_function_single.acpi_safe_halt.acpi_idle_enter 6.96 ? 3% -0.9 6.05 ? 5% perf-profile.calltrace.cycles-pp.sctp_ulpq_tail_data.sctp_cmd_interpreter.sctp_do_sm.sctp_assoc_bh_rcv.sctp_rcv 4.27 ? 6% -0.8 3.43 ? 13% perf-profile.calltrace.cycles-pp.sysvec_call_function_single.asm_sysvec_call_function_single.acpi_safe_halt.acpi_idle_enter.cpuidle_enter_state 5.07 ? 4% -0.7 4.36 ? 3% perf-profile.calltrace.cycles-pp.skb_copy_bits.skb_copy.sctp_make_reassembled_event.sctp_ulpq_tail_data.sctp_cmd_interpreter 5.05 ? 4% -0.7 4.36 ? 3% perf-profile.calltrace.cycles-pp.__memcpy.skb_copy_bits.skb_copy.sctp_make_reassembled_event.sctp_ulpq_tail_data 3.52 ? 8% -0.6 2.94 ? 7% perf-profile.calltrace.cycles-pp.sctp_packet_transmit_chunk.sctp_outq_flush_data.sctp_outq_flush.sctp_cmd_interpreter.sctp_do_sm 3.48 ? 9% -0.6 2.92 ? 8% perf-profile.calltrace.cycles-pp.sctp_packet_transmit.sctp_packet_transmit_chunk.sctp_outq_flush_data.sctp_outq_flush.sctp_cmd_interpreter 1.59 ? 7% -0.6 1.04 ? 11% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_bh.lock_sock_nested.sctp_skb_recv_datagram.sctp_recvmsg 1.63 ? 8% -0.5 1.11 ? 13% perf-profile.calltrace.cycles-pp._raw_spin_lock_bh.lock_sock_nested.sctp_skb_recv_datagram.sctp_recvmsg.inet_recvmsg 1.65 ? 8% -0.5 1.12 ? 13% perf-profile.calltrace.cycles-pp.lock_sock_nested.sctp_skb_recv_datagram.sctp_recvmsg.inet_recvmsg.sock_recvmsg 1.50 ? 12% -0.4 1.05 ? 11% perf-profile.calltrace.cycles-pp.schedule_timeout.sctp_skb_recv_datagram.sctp_recvmsg.inet_recvmsg.sock_recvmsg 1.47 ? 11% -0.4 1.03 ? 11% perf-profile.calltrace.cycles-pp.schedule.schedule_timeout.sctp_skb_recv_datagram.sctp_recvmsg.inet_recvmsg 1.46 ? 12% -0.4 1.03 ? 12% perf-profile.calltrace.cycles-pp.__schedule.schedule.schedule_timeout.sctp_skb_recv_datagram.sctp_recvmsg 1.79 ? 14% -0.4 1.40 ? 12% perf-profile.calltrace.cycles-pp.consume_skb.sctp_chunk_put.sctp_datamsg_put.sctp_chunk_free.sctp_outq_sack 1.01 ? 19% -0.4 0.62 ? 10% perf-profile.calltrace.cycles-pp.__free_pages_ok.skb_release_data.consume_skb.sctp_chunk_put.sctp_ulpevent_free 1.30 ? 18% -0.4 0.92 ? 23% perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_pages.__kmalloc_large_node.__kmalloc_node_track_caller.kmalloc_reserve 3.96 ? 6% -0.4 3.58 ? 6% perf-profile.calltrace.cycles-pp.sctp_packet_transmit.sctp_outq_flush.sctp_cmd_interpreter.sctp_do_sm.sctp_primitive_SEND 0.95 ? 8% -0.2 0.74 ? 10% perf-profile.calltrace.cycles-pp.skb_release_data.kfree_skb_reason.sctp_recvmsg.inet_recvmsg.sock_recvmsg 1.16 ? 5% -0.2 1.00 ? 10% perf-profile.calltrace.cycles-pp.kfree_skb_reason.sctp_recvmsg.inet_recvmsg.sock_recvmsg.____sys_recvmsg 0.66 ? 10% +0.2 0.86 ? 18% perf-profile.calltrace.cycles-pp.exit_mmap.__mmput.exit_mm.do_exit.do_group_exit 0.67 ? 10% +0.2 0.88 ? 18% perf-profile.calltrace.cycles-pp.__mmput.exit_mm.do_exit.do_group_exit.__x64_sys_exit_group 0.67 ? 10% +0.2 0.88 ? 20% perf-profile.calltrace.cycles-pp.exit_mm.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64 0.74 ? 16% +0.4 1.11 ? 13% perf-profile.calltrace.cycles-pp.sctp_generate_timeout_event.call_timer_fn.__run_timers.timer_expire_remote.tmigr_handle_remote_cpu 0.55 ? 47% +0.4 0.96 ? 13% perf-profile.calltrace.cycles-pp.sctp_cmd_interpreter.sctp_do_sm.sctp_generate_timeout_event.call_timer_fn.__run_timers 0.85 ? 15% +0.4 1.27 ? 13% perf-profile.calltrace.cycles-pp.__run_timers.timer_expire_remote.tmigr_handle_remote_cpu.tmigr_handle_remote_up.tmigr_handle_remote 0.85 ? 16% +0.4 1.28 ? 13% perf-profile.calltrace.cycles-pp.timer_expire_remote.tmigr_handle_remote_cpu.tmigr_handle_remote_up.tmigr_handle_remote.__do_softirq 1.49 ? 11% +0.5 1.98 ? 11% perf-profile.calltrace.cycles-pp.tmigr_handle_remote_up.tmigr_handle_remote.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt 1.51 ? 11% +0.5 2.01 ? 12% perf-profile.calltrace.cycles-pp.tmigr_handle_remote.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt 1.27 ? 10% +0.5 1.77 ? 11% perf-profile.calltrace.cycles-pp.tmigr_handle_remote_cpu.tmigr_handle_remote_up.tmigr_handle_remote.__do_softirq.irq_exit_rcu 0.00 +0.6 0.63 ? 13% perf-profile.calltrace.cycles-pp._raw_spin_lock.raw_spin_rq_lock_nested._nohz_idle_balance.do_idle.cpu_startup_entry 0.00 +0.6 0.63 ? 14% perf-profile.calltrace.cycles-pp.raw_spin_rq_lock_nested._nohz_idle_balance.do_idle.cpu_startup_entry.start_secondary 0.00 +0.8 0.75 ? 17% perf-profile.calltrace.cycles-pp.update_blocked_averages._nohz_idle_balance.do_idle.cpu_startup_entry.start_secondary 8.46 ? 4% +0.9 9.41 ? 3% perf-profile.calltrace.cycles-pp._copy_to_iter.__skb_datagram_iter.skb_copy_datagram_iter.sctp_recvmsg.inet_recvmsg 8.71 ? 4% +1.0 9.67 ? 2% perf-profile.calltrace.cycles-pp.skb_copy_datagram_iter.sctp_recvmsg.inet_recvmsg.sock_recvmsg.____sys_recvmsg 8.70 ? 4% +1.0 9.67 ? 2% perf-profile.calltrace.cycles-pp.__skb_datagram_iter.skb_copy_datagram_iter.sctp_recvmsg.inet_recvmsg.sock_recvmsg 0.80 ? 21% +1.2 2.02 ? 4% perf-profile.calltrace.cycles-pp._nohz_idle_balance.do_idle.cpu_startup_entry.start_secondary.common_startup_64 12.15 ? 3% +6.4 18.54 ? 5% perf-profile.calltrace.cycles-pp.__napi_poll.net_rx_action.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt 12.15 ? 3% +6.4 18.55 ? 5% perf-profile.calltrace.cycles-pp.net_rx_action.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt 12.14 ? 3% +6.4 18.54 ? 5% perf-profile.calltrace.cycles-pp.process_backlog.__napi_poll.net_rx_action.__do_softirq.irq_exit_rcu 21.77 +6.5 28.25 ? 3% perf-profile.calltrace.cycles-pp.acpi_safe_halt.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call 14.95 ? 3% +6.8 21.71 ? 4% perf-profile.calltrace.cycles-pp.__do_softirq.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt 14.98 ? 3% +6.8 21.74 ? 4% perf-profile.calltrace.cycles-pp.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt.acpi_idle_enter 26.76 ? 2% +6.8 33.55 ? 2% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry 26.47 ? 2% +6.8 33.31 ? 2% perf-profile.calltrace.cycles-pp.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle 16.26 ? 4% +7.1 23.40 ? 4% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.acpi_safe_halt.acpi_idle_enter.cpuidle_enter_state 19.50 ? 3% +7.6 27.06 ? 3% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.acpi_safe_halt.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter 24.14 ? 2% +7.8 31.96 ? 2% perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary 26.39 ? 2% +7.9 34.26 ? 2% perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.common_startup_64 31.94 ? 2% +8.0 39.97 perf-profile.calltrace.cycles-pp.common_startup_64 29.16 ? 2% +9.1 38.26 ? 2% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.common_startup_64 29.13 ? 2% +9.1 38.24 ? 2% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.common_startup_64 29.16 ? 2% +9.1 38.27 ? 2% perf-profile.calltrace.cycles-pp.start_secondary.common_startup_64 12.40 ? 4% -7.2 5.22 ? 12% perf-profile.children.cycles-pp.ret_from_fork_asm 12.30 ? 4% -7.1 5.15 ? 13% perf-profile.children.cycles-pp.kthread 12.36 ? 4% -7.1 5.21 ? 12% perf-profile.children.cycles-pp.ret_from_fork 10.50 ? 7% -6.9 3.63 ? 15% perf-profile.children.cycles-pp.smpboot_thread_fn 9.62 ? 7% -6.8 2.79 ? 20% perf-profile.children.cycles-pp.run_ksoftirqd 31.94 -1.5 30.44 perf-profile.children.cycles-pp.__do_softirq 5.16 ? 10% -1.4 3.72 ? 11% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath 3.68 ? 11% -1.3 2.36 ? 9% perf-profile.children.cycles-pp._raw_spin_lock_irqsave 3.33 ? 8% -1.2 2.12 ? 15% perf-profile.children.cycles-pp.load_balance 17.33 ? 2% -1.2 16.12 ? 3% perf-profile.children.cycles-pp.__memcpy 2.88 ? 9% -1.2 1.70 ? 8% perf-profile.children.cycles-pp.find_busiest_group 3.63 ? 11% -1.2 2.46 ? 9% perf-profile.children.cycles-pp.sctp_skb_recv_datagram 2.85 ? 9% -1.2 1.68 ? 8% perf-profile.children.cycles-pp.update_sd_lb_stats 2.78 ? 15% -1.1 1.70 ? 14% perf-profile.children.cycles-pp.rest_init 2.78 ? 15% -1.1 1.70 ? 14% perf-profile.children.cycles-pp.start_kernel 2.78 ? 15% -1.1 1.70 ? 14% perf-profile.children.cycles-pp.x86_64_start_kernel 2.78 ? 15% -1.1 1.70 ? 14% perf-profile.children.cycles-pp.x86_64_start_reservations 2.61 ? 10% -1.1 1.53 ? 8% perf-profile.children.cycles-pp.update_sg_lb_stats 7.41 ? 2% -1.0 6.42 ? 4% perf-profile.children.cycles-pp.sctp_ulpq_tail_data 16.46 ? 2% -1.0 15.46 ? 3% perf-profile.children.cycles-pp.sctp_packet_transmit 3.51 ? 5% -0.9 2.58 ? 9% perf-profile.children.cycles-pp.kmalloc_reserve 3.42 ? 5% -0.9 2.49 ? 10% perf-profile.children.cycles-pp.__kmalloc_node_track_caller 50.46 -0.9 49.53 perf-profile.children.cycles-pp.do_syscall_64 50.52 -0.9 49.60 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 2.19 ? 5% -0.9 1.27 ? 17% perf-profile.children.cycles-pp.rmqueue 3.37 ? 5% -0.9 2.46 ? 10% perf-profile.children.cycles-pp.__kmalloc_large_node 3.96 ? 3% -0.9 3.06 ? 8% perf-profile.children.cycles-pp.__alloc_skb 4.38 ? 6% -0.9 3.48 ? 4% perf-profile.children.cycles-pp.__schedule 3.21 ? 4% -0.9 2.34 ? 13% perf-profile.children.cycles-pp.__alloc_pages 3.04 ? 4% -0.9 2.17 ? 14% perf-profile.children.cycles-pp.get_page_from_freelist 4.32 ? 6% -0.9 3.46 ? 13% perf-profile.children.cycles-pp.sysvec_call_function_single 2.59 ? 17% -0.8 1.77 ? 5% perf-profile.children.cycles-pp.__free_pages_ok 9.60 ? 2% -0.8 8.78 ? 4% perf-profile.children.cycles-pp.sctp_make_reassembled_event 9.34 ? 2% -0.8 8.54 ? 4% perf-profile.children.cycles-pp.skb_copy 1.69 ? 20% -0.8 0.90 ? 14% perf-profile.children.cycles-pp.pick_next_task_fair 3.32 ? 9% -0.8 2.54 ? 5% perf-profile.children.cycles-pp.schedule 2.05 ? 15% -0.8 1.28 ? 10% perf-profile.children.cycles-pp.newidle_balance 1.47 ? 21% -0.8 0.71 ? 10% perf-profile.children.cycles-pp.free_one_page 3.71 ? 14% -0.6 3.07 ? 6% perf-profile.children.cycles-pp.skb_release_data 2.37 ? 9% -0.6 1.73 ? 6% perf-profile.children.cycles-pp.schedule_timeout 2.04 ? 9% -0.5 1.50 ? 12% perf-profile.children.cycles-pp.lock_sock_nested 2.06 ? 8% -0.5 1.52 ? 13% perf-profile.children.cycles-pp._raw_spin_lock_bh 0.50 ? 47% -0.2 0.26 ? 18% perf-profile.children.cycles-pp.cpu_util 0.27 ? 23% -0.2 0.10 ? 40% perf-profile.children.cycles-pp.task_work_run 0.23 ? 19% -0.2 0.06 ? 52% perf-profile.children.cycles-pp.task_mm_cid_work 0.26 ? 24% -0.1 0.14 ? 17% perf-profile.children.cycles-pp._find_next_and_bit 0.16 ? 27% -0.1 0.08 ? 35% perf-profile.children.cycles-pp.rw_verify_area 0.15 ? 9% +0.0 0.18 ? 14% perf-profile.children.cycles-pp.__cmd_record 0.15 ? 9% +0.0 0.18 ? 14% perf-profile.children.cycles-pp.cmd_record 0.05 ? 75% +0.1 0.14 ? 19% perf-profile.children.cycles-pp.call_cpuidle 0.31 ? 16% +0.1 0.41 ? 13% perf-profile.children.cycles-pp.write 0.12 ? 35% +0.1 0.24 ? 34% perf-profile.children.cycles-pp.tick_do_update_jiffies64 0.08 ? 19% +0.1 0.19 ? 21% perf-profile.children.cycles-pp.sctp_backlog_rcv 0.22 ? 33% +0.1 0.35 ? 13% perf-profile.children.cycles-pp.perf_read 0.08 ? 19% +0.1 0.22 ? 25% perf-profile.children.cycles-pp.__release_sock 0.14 ? 19% +0.2 0.30 ? 14% perf-profile.children.cycles-pp.release_sock 0.31 ? 11% +0.2 0.48 ? 37% perf-profile.children.cycles-pp.zap_pte_range 0.34 ? 19% +0.2 0.52 ? 32% perf-profile.children.cycles-pp.unmap_page_range 0.31 ? 14% +0.2 0.50 ? 35% perf-profile.children.cycles-pp.zap_pmd_range 0.44 ? 15% +0.2 0.64 ? 15% perf-profile.children.cycles-pp.__rhashtable_lookup 0.68 ? 9% +0.2 0.90 ? 19% perf-profile.children.cycles-pp.exit_mm 0.86 ? 4% +0.2 1.10 ? 18% perf-profile.children.cycles-pp.exit_mmap 0.86 ? 4% +0.3 1.12 ? 17% perf-profile.children.cycles-pp.__mmput 1.48 ? 11% +0.3 1.77 ? 9% perf-profile.children.cycles-pp.__run_timers 0.64 ? 15% +0.3 0.99 ? 34% perf-profile.children.cycles-pp.__sctp_rcv_lookup 0.63 ? 15% +0.4 0.98 ? 34% perf-profile.children.cycles-pp.sctp_addrs_lookup_transport 0.88 ? 15% +0.4 1.32 ? 13% perf-profile.children.cycles-pp.timer_expire_remote 1.53 ? 10% +0.5 2.03 ? 11% perf-profile.children.cycles-pp.tmigr_handle_remote_up 1.55 ? 10% +0.5 2.07 ? 11% perf-profile.children.cycles-pp.tmigr_handle_remote 1.31 ? 9% +0.5 1.83 ? 11% perf-profile.children.cycles-pp.tmigr_handle_remote_cpu 0.50 ? 14% +0.5 1.03 ? 9% perf-profile.children.cycles-pp.raw_spin_rq_lock_nested 8.71 ? 4% +1.0 9.67 ? 2% perf-profile.children.cycles-pp.skb_copy_datagram_iter 8.52 ? 4% +1.0 9.48 ? 2% perf-profile.children.cycles-pp._copy_to_iter 8.70 ? 4% +1.0 9.67 ? 2% perf-profile.children.cycles-pp.__skb_datagram_iter 1.79 ? 12% +1.0 2.80 ? 4% perf-profile.children.cycles-pp._raw_spin_lock 17.97 ? 3% +5.6 23.57 ? 4% perf-profile.children.cycles-pp.irq_exit_rcu 26.84 ? 2% +6.8 33.60 ? 2% perf-profile.children.cycles-pp.cpuidle_enter 29.13 ? 2% +6.8 35.92 ? 2% perf-profile.children.cycles-pp.cpuidle_idle_call 26.77 ? 2% +6.8 33.56 ? 2% perf-profile.children.cycles-pp.cpuidle_enter_state 26.45 ? 2% +6.8 33.28 ? 2% perf-profile.children.cycles-pp.acpi_safe_halt 17.04 ? 3% +6.8 23.88 ? 4% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt 26.47 ? 2% +6.8 33.31 ? 2% perf-profile.children.cycles-pp.acpi_idle_enter 18.83 ? 3% +7.0 25.78 ? 3% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt 31.93 ? 2% +8.0 39.96 perf-profile.children.cycles-pp.do_idle 31.94 ? 2% +8.0 39.97 perf-profile.children.cycles-pp.common_startup_64 31.94 ? 2% +8.0 39.97 perf-profile.children.cycles-pp.cpu_startup_entry 29.16 ? 2% +9.1 38.27 ? 2% perf-profile.children.cycles-pp.start_secondary 5.14 ? 10% -1.4 3.71 ? 11% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath 16.85 ? 2% -0.9 15.98 ? 2% perf-profile.self.cycles-pp.__memcpy 1.83 ? 10% -0.7 1.09 ? 9% perf-profile.self.cycles-pp.update_sg_lb_stats 0.20 ? 24% -0.2 0.05 ? 74% perf-profile.self.cycles-pp.task_mm_cid_work 0.35 ? 25% -0.1 0.21 ? 16% perf-profile.self.cycles-pp.cpu_util 0.23 ? 24% -0.1 0.13 ? 21% perf-profile.self.cycles-pp._find_next_and_bit 0.02 ?141% +0.1 0.08 ? 22% perf-profile.self.cycles-pp.folio_remove_rmap_ptes 0.02 ?141% +0.1 0.08 ? 38% perf-profile.self.cycles-pp.__run_timers 0.05 ? 75% +0.1 0.13 ? 18% perf-profile.self.cycles-pp.call_cpuidle 0.03 ?150% +0.1 0.12 ? 35% perf-profile.self.cycles-pp.update_blocked_averages 0.18 ? 33% +0.1 0.32 ? 22% perf-profile.self.cycles-pp.sctp_packet_config 1.29 ? 11% +0.4 1.66 ? 7% perf-profile.self.cycles-pp._raw_spin_lock 8.42 ? 4% +1.0 9.45 ? 2% perf-profile.self.cycles-pp._copy_to_iter 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