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Date: Wed, 15 May 2024 16:06:50 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Frederic Weisbecker <frederic@...nel.org>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <linux-kernel@...r.kernel.org>,
Thomas Gleixner <tglx@...utronix.de>, Anna-Maria Behnsen
<anna-maria@...utronix.de>, <ying.huang@...el.com>, <feng.tang@...el.com>,
<fengwei.yin@...el.com>, <oliver.sang@...el.com>
Subject: [linus:master] [timers/migration] 61f7fdf8fd:
netperf.Throughput_Mbps 2.7% improvement
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
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