Greeting,
FYI, we noticed a -5.4% regression of netperf.Throughput_tps due to commit:
commit: 56498cfb045d7147cdcba33795d19429afcd1d00 ("sched/fair: Avoid a second scan of target in select_idle_cpu")
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git sched/core
in testcase: netperf
on test machine: 128 threads 2 sockets Intel(R) Xeon(R) Gold 6338 CPU @ 2.00GHz with 256G memory
with following parameters:
ip: ipv4
runtime: 300s
nr_threads: 50%
cluster: cs-localhost
test: UDP_RR
cpufreq_governor: performance
ucode: 0xd000280
test-description: Netperf is a benchmark that can be use to measure various aspect of networking performance.
test-url: http://www.netperf.org/netperf/
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <[email protected]>
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
bin/lkp run generated-yaml-file
=========================================================================================
cluster/compiler/cpufreq_governor/ip/kconfig/nr_threads/rootfs/runtime/tbox_group/test/testcase/ucode:
cs-localhost/gcc-9/performance/ipv4/x86_64-rhel-8.3/50%/debian-10.4-x86_64-20200603.cgz/300s/lkp-icl-2sp2/UDP_RR/netperf/0xd000280
commit:
89aafd67f2 ("sched/fair: Use prev instead of new target as recent_used_cpu")
56498cfb04 ("sched/fair: Avoid a second scan of target in select_idle_cpu")
89aafd67f28c9e3b 56498cfb045d7147cdcba33795d
---------------- ---------------------------
%stddev %change %stddev
\ | \
4980199 -5.4% 4710753 netperf.Throughput_total_tps
77815 -5.4% 73605 netperf.Throughput_tps
3057 -1.5% 3012 netperf.time.percent_of_cpu_this_job_got
8502 -1.0% 8417 netperf.time.system_time
704.60 ? 6% -7.3% 652.99 netperf.time.user_time
1.475e+09 -4.6% 1.407e+09 netperf.time.voluntary_context_switches
1.494e+09 -5.4% 1.413e+09 netperf.workload
81047 ? 24% +100.4% 162384 ? 32% numa-meminfo.node1.AnonPages.max
74515 ? 45% -62.9% 27610 ? 70% numa-numastat.node0.other_node
74346 ? 45% -62.2% 28115 ? 67% numa-vmstat.node0.numa_other
44.36 +0.8 45.20 turbostat.C1%
8565 ? 16% -14.3% 7342 ? 20% interrupts.CPU93.NMI:Non-maskable_interrupts
8565 ? 16% -14.3% 7342 ? 20% interrupts.CPU93.PMI:Performance_monitoring_interrupts
19377271 -5.2% 18374412 vmstat.system.cs
9888699 -5.0% 9397833 vmstat.system.in
789686 ? 4% +5.8% 835223 ? 3% proc-vmstat.nr_mapped
3724 +2.9% 3834 proc-vmstat.nr_page_table_pages
1120470 +5.3% 1179918 ? 4% proc-vmstat.numa_pte_updates
9.40 ? 2% +37.2% 12.90 perf-stat.i.MPKI
3.325e+10 -5.3% 3.148e+10 perf-stat.i.branch-instructions
4.653e+08 -4.8% 4.431e+08 perf-stat.i.branch-misses
14090850 ? 7% +23.6% 17410487 ? 7% perf-stat.i.cache-misses
1.558e+09 +29.7% 2.021e+09 perf-stat.i.cache-references
19525342 -5.1% 18528333 perf-stat.i.context-switches
1.48 +4.0% 1.54 perf-stat.i.cpi
2.478e+11 -2.3% 2.422e+11 perf-stat.i.cpu-cycles
20475 ? 7% -23.0% 15760 ? 9% perf-stat.i.cycles-between-cache-misses
0.02 ? 2% +0.0 0.03 ? 92% perf-stat.i.dTLB-load-miss-rate%
8389062 ? 2% +12.1% 9400511 ? 2% perf-stat.i.dTLB-load-misses
4.883e+10 -5.4% 4.619e+10 perf-stat.i.dTLB-loads
0.00 ? 6% +0.0 0.00 ? 56% perf-stat.i.dTLB-store-miss-rate%
2.983e+10 -5.5% 2.821e+10 perf-stat.i.dTLB-stores
1.688e+11 -5.4% 1.598e+11 perf-stat.i.instructions
0.68 -3.4% 0.66 perf-stat.i.ipc
1.94 -2.3% 1.89 perf-stat.i.metric.GHz
886.48 -4.9% 842.91 perf-stat.i.metric.M/sec
9.23 ? 2% +37.1% 12.65 perf-stat.overall.MPKI
1.47 +3.3% 1.52 perf-stat.overall.cpi
17698 ? 7% -21.0% 13980 ? 7% perf-stat.overall.cycles-between-cache-misses
0.02 ? 2% +0.0 0.02 ? 3% perf-stat.overall.dTLB-load-miss-rate%
0.00 ? 6% +0.0 0.00 ? 6% perf-stat.overall.dTLB-store-miss-rate%
0.68 -3.2% 0.66 perf-stat.overall.ipc
3.314e+10 -5.3% 3.137e+10 perf-stat.ps.branch-instructions
4.638e+08 -4.8% 4.416e+08 perf-stat.ps.branch-misses
14042045 ? 8% +23.6% 17351753 ? 7% perf-stat.ps.cache-misses
1.553e+09 +29.7% 2.014e+09 perf-stat.ps.cache-references
19460780 -5.1% 18466153 perf-stat.ps.context-switches
2.47e+11 -2.3% 2.414e+11 perf-stat.ps.cpu-cycles
8348081 ? 2% +12.1% 9359431 ? 2% perf-stat.ps.dTLB-load-misses
4.866e+10 -5.4% 4.603e+10 perf-stat.ps.dTLB-loads
2.973e+10 -5.5% 2.811e+10 perf-stat.ps.dTLB-stores
1.683e+11 -5.4% 1.592e+11 perf-stat.ps.instructions
5.085e+13 -4.8% 4.841e+13 perf-stat.total.instructions
44.71 -1.0 43.72 perf-profile.calltrace.cycles-pp.asm_sysvec_reschedule_ipi.acpi_idle_do_entry.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter
27.78 -0.6 27.20 perf-profile.calltrace.cycles-pp.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
27.63 -0.6 27.07 perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary
26.02 -0.5 25.49 perf-profile.calltrace.cycles-pp.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry
1.81 ? 2% -0.2 1.58 ? 2% perf-profile.calltrace.cycles-pp.ip_route_output_flow.udp_sendmsg.sock_sendmsg.__sys_sendto.__x64_sys_sendto
1.76 ? 2% -0.2 1.53 ? 2% perf-profile.calltrace.cycles-pp.ip_route_output_key_hash.ip_route_output_flow.udp_sendmsg.sock_sendmsg.__sys_sendto
1.51 ? 2% -0.2 1.31 ? 2% perf-profile.calltrace.cycles-pp.ip_route_output_key_hash_rcu.ip_route_output_key_hash.ip_route_output_flow.udp_sendmsg.sock_sendmsg
2.75 ? 2% -0.1 2.64 ? 2% perf-profile.calltrace.cycles-pp.menu_select.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
1.02 ? 4% -0.1 0.92 ? 4% perf-profile.calltrace.cycles-pp.fib_table_lookup.ip_route_output_key_hash_rcu.ip_route_output_key_hash.ip_route_output_flow.udp_sendmsg
0.97 -0.1 0.91 perf-profile.calltrace.cycles-pp.ip_generic_getfrag.__ip_append_data.ip_make_skb.udp_sendmsg.sock_sendmsg
0.77 -0.1 0.70 perf-profile.calltrace.cycles-pp.security_socket_sendmsg.sock_sendmsg.__sys_sendto.__x64_sys_sendto.do_syscall_64
0.61 -0.1 0.55 perf-profile.calltrace.cycles-pp._copy_from_iter_full.ip_generic_getfrag.__ip_append_data.ip_make_skb.udp_sendmsg
5.78 -0.1 5.73 perf-profile.calltrace.cycles-pp.acpi_idle_do_entry.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter.do_idle
1.44 -0.0 1.40 perf-profile.calltrace.cycles-pp.ttwu_do_wakeup.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
1.34 -0.0 1.29 perf-profile.calltrace.cycles-pp.check_preempt_curr.ttwu_do_wakeup.try_to_wake_up.autoremove_wake_function.__wake_up_common
0.84 -0.0 0.80 perf-profile.calltrace.cycles-pp.native_apic_msr_eoi_write.sysvec_reschedule_ipi.asm_sysvec_reschedule_ipi.acpi_idle_do_entry.acpi_idle_enter
0.54 -0.0 0.52 perf-profile.calltrace.cycles-pp.__switch_to
0.63 -0.0 0.60 perf-profile.calltrace.cycles-pp.update_load_avg.set_next_entity.pick_next_task_fair.pick_next_task.__schedule
0.55 -0.0 0.53 perf-profile.calltrace.cycles-pp.pick_next_task.__schedule.schedule.schedule_timeout.__skb_wait_for_more_packets
1.04 +0.0 1.08 perf-profile.calltrace.cycles-pp.update_load_avg.dequeue_entity.dequeue_task_fair.__schedule.schedule
0.62 ? 2% +0.0 0.66 perf-profile.calltrace.cycles-pp.update_load_avg.enqueue_entity.enqueue_task_fair.ttwu_do_activate.try_to_wake_up
0.58 ? 2% +0.0 0.63 perf-profile.calltrace.cycles-pp.__slab_free.__consume_stateless_skb.udp_recvmsg.inet_recvmsg.__sys_recvfrom
0.70 ? 2% +0.1 0.75 perf-profile.calltrace.cycles-pp.perf_trace_sched_wakeup_template.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
2.13 +0.1 2.18 perf-profile.calltrace.cycles-pp.sysvec_reschedule_ipi.asm_sysvec_reschedule_ipi.acpi_idle_do_entry.acpi_idle_enter.cpuidle_enter_state
1.29 ? 2% +0.1 1.35 perf-profile.calltrace.cycles-pp.update_curr.dequeue_entity.dequeue_task_fair.__schedule.schedule
0.92 +0.1 0.98 perf-profile.calltrace.cycles-pp.irqtime_account_irq.__softirqentry_text_start.do_softirq.__local_bh_enable_ip.ip_finish_output2
0.80 ? 2% +0.1 0.86 perf-profile.calltrace.cycles-pp.sock_wfree.loopback_xmit.dev_hard_start_xmit.__dev_queue_xmit.ip_finish_output2
0.65 ? 2% +0.1 0.73 perf-profile.calltrace.cycles-pp.switch_mm_irqs_off.__schedule.schedule_idle.do_idle.cpu_startup_entry
0.94 +0.1 1.03 perf-profile.calltrace.cycles-pp.tick_nohz_idle_exit.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
0.92 ? 2% +0.1 1.00 perf-profile.calltrace.cycles-pp.__check_object_size.udp_recvmsg.inet_recvmsg.__sys_recvfrom.__x64_sys_recvfrom
0.96 +0.1 1.05 perf-profile.calltrace.cycles-pp.select_task_rq_fair.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
1.64 ? 2% +0.1 1.73 perf-profile.calltrace.cycles-pp.loopback_xmit.dev_hard_start_xmit.__dev_queue_xmit.ip_finish_output2.ip_output
1.34 ? 3% +0.1 1.43 perf-profile.calltrace.cycles-pp.__consume_stateless_skb.udp_recvmsg.inet_recvmsg.__sys_recvfrom.__x64_sys_recvfrom
1.77 +0.1 1.87 perf-profile.calltrace.cycles-pp.dev_hard_start_xmit.__dev_queue_xmit.ip_finish_output2.ip_output.ip_send_skb
2.96 +0.1 3.06 perf-profile.calltrace.cycles-pp.sock_alloc_send_pskb.__ip_append_data.ip_make_skb.udp_sendmsg.sock_sendmsg
2.52 +0.1 2.62 perf-profile.calltrace.cycles-pp.__dev_queue_xmit.ip_finish_output2.ip_output.ip_send_skb.udp_send_skb
0.56 ? 3% +0.1 0.66 perf-profile.calltrace.cycles-pp.update_ts_time_stats.tick_nohz_idle_exit.do_idle.cpu_startup_entry.start_secondary
1.09 ? 2% +0.1 1.20 perf-profile.calltrace.cycles-pp._copy_to_iter.udp_recvmsg.inet_recvmsg.__sys_recvfrom.__x64_sys_recvfrom
0.84 ? 3% +0.1 0.95 perf-profile.calltrace.cycles-pp.irqentry_enter.sysvec_reschedule_ipi.asm_sysvec_reschedule_ipi.acpi_idle_do_entry.acpi_idle_enter
0.68 ? 2% +0.1 0.78 perf-profile.calltrace.cycles-pp.select_idle_sibling.select_task_rq_fair.try_to_wake_up.autoremove_wake_function.__wake_up_common
3.13 +0.1 3.23 perf-profile.calltrace.cycles-pp.dequeue_entity.dequeue_task_fair.__schedule.schedule.schedule_timeout
0.73 ? 3% +0.1 0.83 perf-profile.calltrace.cycles-pp.copyout._copy_to_iter.udp_recvmsg.inet_recvmsg.__sys_recvfrom
0.62 ? 4% +0.1 0.72 perf-profile.calltrace.cycles-pp.copy_user_generic_unrolled.copyout._copy_to_iter.udp_recvmsg.inet_recvmsg
3.50 +0.1 3.60 perf-profile.calltrace.cycles-pp.dequeue_task_fair.__schedule.schedule.schedule_timeout.__skb_wait_for_more_packets
0.79 ? 3% +0.1 0.91 perf-profile.calltrace.cycles-pp.__ksize.__alloc_skb.alloc_skb_with_frags.sock_alloc_send_pskb.__ip_append_data
7.12 +0.1 7.25 perf-profile.calltrace.cycles-pp.schedule.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_udp.udp_recvmsg
6.89 +0.2 7.04 perf-profile.calltrace.cycles-pp.__schedule.schedule.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_udp
0.99 ? 3% +0.2 1.15 perf-profile.calltrace.cycles-pp.update_rq_clock.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
1.90 +0.2 2.07 perf-profile.calltrace.cycles-pp.set_next_entity.pick_next_task_fair.pick_next_task.__schedule.schedule_idle
1.94 +0.2 2.10 perf-profile.calltrace.cycles-pp.enqueue_entity.enqueue_task_fair.ttwu_do_activate.try_to_wake_up.autoremove_wake_function
7.79 +0.2 8.00 perf-profile.calltrace.cycles-pp.schedule_timeout.__skb_wait_for_more_packets.__skb_recv_udp.udp_recvmsg.inet_recvmsg
2.62 +0.2 2.82 perf-profile.calltrace.cycles-pp.ttwu_do_activate.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
2.52 +0.2 2.73 perf-profile.calltrace.cycles-pp.enqueue_task_fair.ttwu_do_activate.try_to_wake_up.autoremove_wake_function.__wake_up_common
2.79 +0.2 3.02 perf-profile.calltrace.cycles-pp.pick_next_task_fair.pick_next_task.__schedule.schedule_idle.do_idle
3.10 +0.3 3.36 perf-profile.calltrace.cycles-pp.pick_next_task.__schedule.schedule_idle.do_idle.cpu_startup_entry
0.35 ? 70% +0.3 0.62 perf-profile.calltrace.cycles-pp.nr_iowait_cpu.update_ts_time_stats.tick_nohz_idle_exit.do_idle.cpu_startup_entry
9.02 +0.3 9.31 perf-profile.calltrace.cycles-pp.__skb_wait_for_more_packets.__skb_recv_udp.udp_recvmsg.inet_recvmsg.__sys_recvfrom
6.05 +0.4 6.40 perf-profile.calltrace.cycles-pp.schedule_idle.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
5.78 +0.4 6.15 perf-profile.calltrace.cycles-pp.__schedule.schedule_idle.do_idle.cpu_startup_entry.start_secondary
10.77 +0.4 11.17 perf-profile.calltrace.cycles-pp.__skb_recv_udp.udp_recvmsg.inet_recvmsg.__sys_recvfrom.__x64_sys_recvfrom
0.00 +0.5 0.52 ? 3% perf-profile.calltrace.cycles-pp.skb_release_data.__consume_stateless_skb.udp_recvmsg.inet_recvmsg.__sys_recvfrom
18.15 +0.6 18.73 perf-profile.calltrace.cycles-pp.__x64_sys_recvfrom.do_syscall_64.entry_SYSCALL_64_after_hwframe
17.97 +0.6 18.56 perf-profile.calltrace.cycles-pp.__sys_recvfrom.__x64_sys_recvfrom.do_syscall_64.entry_SYSCALL_64_after_hwframe
55.03 +0.6 55.64 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
8.05 +0.6 8.67 perf-profile.calltrace.cycles-pp.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.sock_def_readable
8.28 +0.6 8.90 perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.sock_def_readable.__udp_enqueue_schedule_skb
15.65 +0.7 16.30 perf-profile.calltrace.cycles-pp.inet_recvmsg.__sys_recvfrom.__x64_sys_recvfrom.do_syscall_64.entry_SYSCALL_64_after_hwframe
15.52 +0.7 16.18 perf-profile.calltrace.cycles-pp.udp_recvmsg.inet_recvmsg.__sys_recvfrom.__x64_sys_recvfrom.do_syscall_64
15.18 +0.7 15.86 perf-profile.calltrace.cycles-pp.net_rx_action.__softirqentry_text_start.do_softirq.__local_bh_enable_ip.ip_finish_output2
14.65 +0.7 15.34 perf-profile.calltrace.cycles-pp.__napi_poll.net_rx_action.__softirqentry_text_start.do_softirq.__local_bh_enable_ip
17.11 +0.7 17.81 perf-profile.calltrace.cycles-pp.__local_bh_enable_ip.ip_finish_output2.ip_output.ip_send_skb.udp_send_skb
16.91 +0.7 17.61 perf-profile.calltrace.cycles-pp.do_softirq.__local_bh_enable_ip.ip_finish_output2.ip_output.ip_send_skb
16.65 +0.7 17.36 perf-profile.calltrace.cycles-pp.__softirqentry_text_start.do_softirq.__local_bh_enable_ip.ip_finish_output2.ip_output
8.79 +0.7 9.51 perf-profile.calltrace.cycles-pp.__wake_up_common.__wake_up_common_lock.sock_def_readable.__udp_enqueue_schedule_skb.udp_queue_rcv_one_skb
9.06 +0.7 9.79 perf-profile.calltrace.cycles-pp.__wake_up_common_lock.sock_def_readable.__udp_enqueue_schedule_skb.udp_queue_rcv_one_skb.udp_unicast_rcv_skb
21.83 +0.7 22.58 perf-profile.calltrace.cycles-pp.udp_send_skb.udp_sendmsg.sock_sendmsg.__sys_sendto.__x64_sys_sendto
14.55 +0.8 15.31 perf-profile.calltrace.cycles-pp.process_backlog.__napi_poll.net_rx_action.__softirqentry_text_start.do_softirq
21.40 +0.8 22.16 perf-profile.calltrace.cycles-pp.ip_send_skb.udp_send_skb.udp_sendmsg.sock_sendmsg.__sys_sendto
21.02 +0.8 21.78 perf-profile.calltrace.cycles-pp.ip_output.ip_send_skb.udp_send_skb.udp_sendmsg.sock_sendmsg
20.17 +0.8 20.95 perf-profile.calltrace.cycles-pp.ip_finish_output2.ip_output.ip_send_skb.udp_send_skb.udp_sendmsg
9.51 +0.8 10.30 perf-profile.calltrace.cycles-pp.sock_def_readable.__udp_enqueue_schedule_skb.udp_queue_rcv_one_skb.udp_unicast_rcv_skb.__udp4_lib_rcv
9.87 +0.8 10.66 perf-profile.calltrace.cycles-pp.__udp_enqueue_schedule_skb.udp_queue_rcv_one_skb.udp_unicast_rcv_skb.__udp4_lib_rcv.ip_protocol_deliver_rcu
13.38 +0.8 14.20 perf-profile.calltrace.cycles-pp.__netif_receive_skb_one_core.process_backlog.__napi_poll.net_rx_action.__softirqentry_text_start
12.87 +0.8 13.72 perf-profile.calltrace.cycles-pp.ip_rcv.__netif_receive_skb_one_core.process_backlog.__napi_poll.net_rx_action
11.06 +0.9 11.91 perf-profile.calltrace.cycles-pp.udp_queue_rcv_one_skb.udp_unicast_rcv_skb.__udp4_lib_rcv.ip_protocol_deliver_rcu.ip_local_deliver_finish
12.27 +0.9 13.13 perf-profile.calltrace.cycles-pp.ip_local_deliver_finish.ip_local_deliver.ip_rcv.__netif_receive_skb_one_core.process_backlog
12.21 +0.9 13.07 perf-profile.calltrace.cycles-pp.ip_protocol_deliver_rcu.ip_local_deliver_finish.ip_local_deliver.ip_rcv.__netif_receive_skb_one_core
12.00 +0.9 12.86 perf-profile.calltrace.cycles-pp.__udp4_lib_rcv.ip_protocol_deliver_rcu.ip_local_deliver_finish.ip_local_deliver.ip_rcv
11.15 +0.9 12.01 perf-profile.calltrace.cycles-pp.udp_unicast_rcv_skb.__udp4_lib_rcv.ip_protocol_deliver_rcu.ip_local_deliver_finish.ip_local_deliver
12.35 +0.9 13.21 perf-profile.calltrace.cycles-pp.ip_local_deliver.ip_rcv.__netif_receive_skb_one_core.process_backlog.__napi_poll
28.03 -0.6 27.44 perf-profile.children.cycles-pp.cpuidle_enter
27.91 -0.6 27.34 perf-profile.children.cycles-pp.cpuidle_enter_state
26.24 -0.5 25.72 perf-profile.children.cycles-pp.acpi_idle_enter
25.83 -0.5 25.32 perf-profile.children.cycles-pp.acpi_idle_do_entry
23.91 -0.5 23.43 perf-profile.children.cycles-pp.asm_sysvec_reschedule_ipi
1.82 ? 2% -0.2 1.59 ? 2% perf-profile.children.cycles-pp.ip_route_output_flow
1.77 -0.2 1.55 ? 2% perf-profile.children.cycles-pp.ip_route_output_key_hash
1.54 ? 2% -0.2 1.34 ? 2% perf-profile.children.cycles-pp.ip_route_output_key_hash_rcu
2.82 ? 3% -0.1 2.70 ? 2% perf-profile.children.cycles-pp.menu_select
1.03 ? 4% -0.1 0.93 ? 4% perf-profile.children.cycles-pp.fib_table_lookup
0.77 ? 2% -0.1 0.69 perf-profile.children.cycles-pp.syscall_return_via_sysret
0.58 ? 2% -0.1 0.51 ? 2% perf-profile.children.cycles-pp.kmem_cache_alloc_node
0.63 -0.1 0.57 perf-profile.children.cycles-pp._copy_from_iter_full
0.78 -0.1 0.72 perf-profile.children.cycles-pp.security_socket_sendmsg
0.99 -0.1 0.93 perf-profile.children.cycles-pp.ip_generic_getfrag
1.23 -0.1 1.17 perf-profile.children.cycles-pp.sched_clock_cpu
0.58 -0.1 0.52 perf-profile.children.cycles-pp.move_addr_to_kernel
1.46 -0.1 1.41 perf-profile.children.cycles-pp.ttwu_do_wakeup
0.45 ? 2% -0.0 0.40 perf-profile.children.cycles-pp._copy_from_user
1.12 -0.0 1.08 perf-profile.children.cycles-pp.__switch_to
0.34 ? 4% -0.0 0.30 perf-profile.children.cycles-pp.rcu_read_unlock_strict
1.35 -0.0 1.30 perf-profile.children.cycles-pp.check_preempt_curr
1.32 -0.0 1.27 perf-profile.children.cycles-pp.native_irq_return_iret
1.00 -0.0 0.95 perf-profile.children.cycles-pp.native_sched_clock
0.17 ? 6% -0.0 0.13 ? 3% perf-profile.children.cycles-pp.xfrm_lookup_route
1.00 ? 2% -0.0 0.96 perf-profile.children.cycles-pp.native_apic_msr_eoi_write
0.23 ? 4% -0.0 0.19 perf-profile.children.cycles-pp.__cond_resched
0.20 ? 11% -0.0 0.16 ? 6% perf-profile.children.cycles-pp.ip_setup_cork
0.24 ? 4% -0.0 0.20 ? 2% perf-profile.children.cycles-pp.import_single_range
0.89 -0.0 0.86 perf-profile.children.cycles-pp.sockfd_lookup_light
0.11 ? 3% -0.0 0.08 ? 5% perf-profile.children.cycles-pp.apparmor_socket_sendmsg
0.50 -0.0 0.48 perf-profile.children.cycles-pp.tick_nohz_idle_enter
0.07 ? 9% -0.0 0.04 ? 45% perf-profile.children.cycles-pp.find_exception
0.13 ? 6% -0.0 0.10 ? 3% perf-profile.children.cycles-pp.__fdget
0.33 -0.0 0.30 perf-profile.children.cycles-pp.copy_fpregs_to_fpstate
0.43 -0.0 0.41 perf-profile.children.cycles-pp.__wrgsbase_inactive
0.11 ? 6% -0.0 0.09 ? 4% perf-profile.children.cycles-pp.xfrm_lookup_with_ifid
0.09 ? 7% -0.0 0.07 ? 5% perf-profile.children.cycles-pp.rb_erase
0.07 ? 10% -0.0 0.05 perf-profile.children.cycles-pp.finish_wait
0.41 -0.0 0.39 perf-profile.children.cycles-pp.sock_recvmsg
0.36 -0.0 0.34 ? 2% perf-profile.children.cycles-pp.security_socket_recvmsg
0.25 ? 4% -0.0 0.23 ? 2% perf-profile.children.cycles-pp.resched_curr
0.31 -0.0 0.30 perf-profile.children.cycles-pp.kfree
0.27 -0.0 0.25 perf-profile.children.cycles-pp.copyin
0.06 ? 7% -0.0 0.05 ? 8% perf-profile.children.cycles-pp.native_smp_send_reschedule
0.43 ? 2% +0.0 0.46 ? 2% perf-profile.children.cycles-pp._raw_spin_lock_bh
0.28 +0.0 0.31 ? 2% perf-profile.children.cycles-pp.available_idle_cpu
0.44 ? 3% +0.0 0.48 perf-profile.children.cycles-pp.perf_tp_event
0.48 +0.0 0.52 ? 2% perf-profile.children.cycles-pp.pick_next_entity
0.40 ? 3% +0.1 0.46 ? 2% perf-profile.children.cycles-pp.__list_del_entry_valid
2.17 +0.1 2.22 perf-profile.children.cycles-pp.sysvec_reschedule_ipi
0.91 +0.1 0.97 perf-profile.children.cycles-pp.__slab_free
2.40 +0.1 2.46 perf-profile.children.cycles-pp.update_load_avg
0.71 ? 2% +0.1 0.77 perf-profile.children.cycles-pp.perf_trace_sched_wakeup_template
0.97 +0.1 1.04 perf-profile.children.cycles-pp.irqtime_account_irq
0.40 ? 3% +0.1 0.47 ? 2% perf-profile.children.cycles-pp.skb_set_owner_w
1.44 +0.1 1.50 perf-profile.children.cycles-pp.update_curr
0.81 ? 2% +0.1 0.88 perf-profile.children.cycles-pp.sock_wfree
0.37 ? 5% +0.1 0.44 perf-profile.children.cycles-pp.cpus_share_cache
0.42 ? 5% +0.1 0.50 ? 3% perf-profile.children.cycles-pp.sock_def_write_space
0.45 ? 6% +0.1 0.53 ? 4% perf-profile.children.cycles-pp.skb_release_data
1.37 +0.1 1.45 perf-profile.children.cycles-pp.__check_object_size
0.66 ? 2% +0.1 0.74 perf-profile.children.cycles-pp.switch_mm_irqs_off
0.97 +0.1 1.06 perf-profile.children.cycles-pp.tick_nohz_idle_exit
0.99 +0.1 1.08 perf-profile.children.cycles-pp.select_task_rq_fair
1.09 ? 2% +0.1 1.18 perf-profile.children.cycles-pp.copy_user_generic_unrolled
1.67 ? 2% +0.1 1.76 perf-profile.children.cycles-pp.loopback_xmit
1.35 ? 3% +0.1 1.44 perf-profile.children.cycles-pp.__consume_stateless_skb
1.78 ? 2% +0.1 1.88 perf-profile.children.cycles-pp.dev_hard_start_xmit
2.55 +0.1 2.64 perf-profile.children.cycles-pp.__dev_queue_xmit
2.97 +0.1 3.07 perf-profile.children.cycles-pp.sock_alloc_send_pskb
0.70 ? 2% +0.1 0.80 perf-profile.children.cycles-pp.select_idle_sibling
0.74 ? 3% +0.1 0.84 perf-profile.children.cycles-pp.copyout
1.11 ? 2% +0.1 1.21 perf-profile.children.cycles-pp._copy_to_iter
0.87 ? 3% +0.1 0.97 perf-profile.children.cycles-pp.irqentry_enter
3.21 +0.1 3.32 perf-profile.children.cycles-pp.dequeue_entity
0.59 ? 2% +0.1 0.69 perf-profile.children.cycles-pp.update_ts_time_stats
0.59 ? 3% +0.1 0.70 perf-profile.children.cycles-pp.nr_iowait_cpu
3.52 +0.1 3.62 perf-profile.children.cycles-pp.dequeue_task_fair
0.84 ? 3% +0.1 0.96 perf-profile.children.cycles-pp.__ksize
7.14 +0.1 7.27 perf-profile.children.cycles-pp.schedule
2.01 +0.2 2.17 perf-profile.children.cycles-pp.set_next_entity
2.01 +0.2 2.17 perf-profile.children.cycles-pp.enqueue_entity
1.71 ? 2% +0.2 1.90 perf-profile.children.cycles-pp.update_rq_clock
7.82 +0.2 8.02 perf-profile.children.cycles-pp.schedule_timeout
2.54 +0.2 2.76 perf-profile.children.cycles-pp.enqueue_task_fair
2.63 +0.2 2.84 perf-profile.children.cycles-pp.ttwu_do_activate
3.16 +0.2 3.39 perf-profile.children.cycles-pp.pick_next_task_fair
3.70 +0.2 3.95 perf-profile.children.cycles-pp.pick_next_task
9.06 +0.3 9.34 perf-profile.children.cycles-pp.__skb_wait_for_more_packets
6.12 +0.4 6.48 perf-profile.children.cycles-pp.schedule_idle
10.86 +0.4 11.26 perf-profile.children.cycles-pp.__skb_recv_udp
12.90 +0.5 13.41 perf-profile.children.cycles-pp.__schedule
18.19 +0.6 18.77 perf-profile.children.cycles-pp.__x64_sys_recvfrom
18.01 +0.6 18.60 perf-profile.children.cycles-pp.__sys_recvfrom
55.13 +0.6 55.74 perf-profile.children.cycles-pp.do_syscall_64
8.11 +0.6 8.73 perf-profile.children.cycles-pp.try_to_wake_up
8.30 +0.6 8.92 perf-profile.children.cycles-pp.autoremove_wake_function
15.66 +0.6 16.31 perf-profile.children.cycles-pp.inet_recvmsg
15.54 +0.7 16.20 perf-profile.children.cycles-pp.udp_recvmsg
15.22 +0.7 15.89 perf-profile.children.cycles-pp.net_rx_action
17.23 +0.7 17.92 perf-profile.children.cycles-pp.__local_bh_enable_ip
16.94 +0.7 17.64 perf-profile.children.cycles-pp.do_softirq
14.78 +0.7 15.48 perf-profile.children.cycles-pp.__napi_poll
16.77 +0.7 17.48 perf-profile.children.cycles-pp.__softirqentry_text_start
8.80 +0.7 9.52 perf-profile.children.cycles-pp.__wake_up_common
9.09 +0.7 9.82 perf-profile.children.cycles-pp.__wake_up_common_lock
14.59 +0.7 15.34 perf-profile.children.cycles-pp.process_backlog
21.84 +0.8 22.60 perf-profile.children.cycles-pp.udp_send_skb
21.43 +0.8 22.19 perf-profile.children.cycles-pp.ip_send_skb
21.04 +0.8 21.81 perf-profile.children.cycles-pp.ip_output
20.19 +0.8 20.98 perf-profile.children.cycles-pp.ip_finish_output2
9.52 +0.8 10.31 perf-profile.children.cycles-pp.sock_def_readable
9.89 +0.8 10.68 perf-profile.children.cycles-pp.__udp_enqueue_schedule_skb
13.40 +0.8 14.23 perf-profile.children.cycles-pp.__netif_receive_skb_one_core
12.90 +0.8 13.75 perf-profile.children.cycles-pp.ip_rcv
11.09 +0.8 11.94 perf-profile.children.cycles-pp.udp_queue_rcv_one_skb
12.30 +0.9 13.15 perf-profile.children.cycles-pp.ip_local_deliver_finish
12.23 +0.9 13.09 perf-profile.children.cycles-pp.ip_protocol_deliver_rcu
12.02 +0.9 12.88 perf-profile.children.cycles-pp.__udp4_lib_rcv
11.16 +0.9 12.02 perf-profile.children.cycles-pp.udp_unicast_rcv_skb
12.36 +0.9 13.22 perf-profile.children.cycles-pp.ip_local_deliver
21.50 -0.5 20.98 perf-profile.self.cycles-pp.acpi_idle_do_entry
1.08 ? 2% -0.1 0.94 perf-profile.self.cycles-pp.udp_sendmsg
0.77 -0.1 0.68 perf-profile.self.cycles-pp.syscall_return_via_sysret
0.42 ? 4% -0.1 0.36 ? 2% perf-profile.self.cycles-pp.ip_route_output_key_hash_rcu
0.53 -0.1 0.46 perf-profile.self.cycles-pp.process_backlog
1.01 ? 2% -0.1 0.96 perf-profile.self.cycles-pp.menu_select
1.00 -0.0 0.96 perf-profile.self.cycles-pp.native_apic_msr_eoi_write
0.96 -0.0 0.92 perf-profile.self.cycles-pp.native_sched_clock
1.04 -0.0 1.00 perf-profile.self.cycles-pp.__switch_to
1.31 -0.0 1.27 perf-profile.self.cycles-pp.native_irq_return_iret
0.14 ? 4% -0.0 0.10 ? 4% perf-profile.self.cycles-pp.__cond_resched
0.57 -0.0 0.54 perf-profile.self.cycles-pp.cpuidle_enter_state
0.20 ? 5% -0.0 0.16 ? 3% perf-profile.self.cycles-pp.rcu_read_unlock_strict
0.22 ? 4% -0.0 0.19 ? 5% perf-profile.self.cycles-pp.kmem_cache_free
0.17 ? 4% -0.0 0.14 ? 3% perf-profile.self.cycles-pp._copy_from_iter_full
0.10 ? 8% -0.0 0.07 ? 5% perf-profile.self.cycles-pp._copy_from_user
0.14 ? 10% -0.0 0.11 ? 3% perf-profile.self.cycles-pp.ip_setup_cork
0.22 ? 5% -0.0 0.19 perf-profile.self.cycles-pp.import_single_range
0.44 ? 3% -0.0 0.41 ? 2% perf-profile.self.cycles-pp.__ip_append_data
0.32 ? 2% -0.0 0.29 ? 2% perf-profile.self.cycles-pp.kmem_cache_alloc_node
0.10 ? 7% -0.0 0.08 ? 4% perf-profile.self.cycles-pp.__fdget
0.29 -0.0 0.26 perf-profile.self.cycles-pp.__napi_poll
0.49 -0.0 0.47 ? 2% perf-profile.self.cycles-pp.__softirqentry_text_start
0.40 -0.0 0.37 perf-profile.self.cycles-pp.net_rx_action
0.23 ? 3% -0.0 0.20 ? 3% perf-profile.self.cycles-pp.ip_route_output_key_hash
0.10 ? 3% -0.0 0.08 ? 4% perf-profile.self.cycles-pp.apparmor_socket_sendmsg
0.46 ? 2% -0.0 0.44 ? 2% perf-profile.self.cycles-pp.___might_sleep
0.32 -0.0 0.30 ? 2% perf-profile.self.cycles-pp.copy_fpregs_to_fpstate
0.30 -0.0 0.28 perf-profile.self.cycles-pp.kfree
0.42 -0.0 0.40 perf-profile.self.cycles-pp.__wrgsbase_inactive
0.27 -0.0 0.26 perf-profile.self.cycles-pp.security_socket_sendmsg
0.11 ? 3% -0.0 0.10 ? 5% perf-profile.self.cycles-pp.security_socket_recvmsg
0.10 ? 4% -0.0 0.09 ? 4% perf-profile.self.cycles-pp.xfrm_lookup_with_ifid
0.07 ? 7% -0.0 0.05 perf-profile.self.cycles-pp.rb_erase
0.17 ? 4% -0.0 0.15 ? 2% perf-profile.self.cycles-pp.schedule
0.18 ? 2% -0.0 0.17 perf-profile.self.cycles-pp.sched_clock_cpu
0.06 ? 7% -0.0 0.05 ? 7% perf-profile.self.cycles-pp.native_smp_send_reschedule
0.19 -0.0 0.18 perf-profile.self.cycles-pp.__x64_sys_sendto
0.14 -0.0 0.13 perf-profile.self.cycles-pp.tick_nohz_next_event
0.13 ? 2% +0.0 0.15 ? 3% perf-profile.self.cycles-pp.perf_trace_sched_wakeup_template
0.81 +0.0 0.84 perf-profile.self.cycles-pp.__update_load_avg_cfs_rq
0.38 +0.0 0.40 ? 2% perf-profile.self.cycles-pp.pick_next_task
0.19 ? 18% +0.0 0.22 ? 4% perf-profile.self.cycles-pp.poll_idle
0.26 ? 2% +0.0 0.29 perf-profile.self.cycles-pp.available_idle_cpu
0.41 ? 2% +0.0 0.45 perf-profile.self.cycles-pp._raw_spin_lock_bh
0.54 ? 2% +0.0 0.58 perf-profile.self.cycles-pp.enqueue_task_fair
0.46 +0.0 0.50 ? 2% perf-profile.self.cycles-pp.pick_next_entity
0.33 ? 3% +0.0 0.37 perf-profile.self.cycles-pp.perf_tp_event
0.38 ? 3% +0.1 0.43 ? 2% perf-profile.self.cycles-pp.__list_del_entry_valid
0.90 +0.1 0.95 perf-profile.self.cycles-pp.__slab_free
0.90 ? 2% +0.1 0.95 perf-profile.self.cycles-pp.update_load_avg
1.53 +0.1 1.59 perf-profile.self.cycles-pp.__schedule
0.41 ? 4% +0.1 0.47 perf-profile.self.cycles-pp.sock_def_readable
0.40 ? 3% +0.1 0.46 ? 2% perf-profile.self.cycles-pp.skb_set_owner_w
0.37 ? 4% +0.1 0.44 perf-profile.self.cycles-pp.cpus_share_cache
0.76 ? 4% +0.1 0.83 perf-profile.self.cycles-pp.update_curr
0.42 ? 5% +0.1 0.49 ? 2% perf-profile.self.cycles-pp.sock_def_write_space
0.68 ? 2% +0.1 0.76 perf-profile.self.cycles-pp.schedule_timeout
0.60 ? 3% +0.1 0.67 perf-profile.self.cycles-pp.irqtime_account_irq
0.44 ? 6% +0.1 0.52 ? 3% perf-profile.self.cycles-pp.skb_release_data
0.86 ? 2% +0.1 0.94 perf-profile.self.cycles-pp.__skb_recv_udp
0.65 ? 2% +0.1 0.73 perf-profile.self.cycles-pp.switch_mm_irqs_off
0.54 ? 4% +0.1 0.62 ? 2% perf-profile.self.cycles-pp.udp_queue_rcv_one_skb
0.83 ? 2% +0.1 0.92 perf-profile.self.cycles-pp.__check_object_size
1.04 ? 3% +0.1 1.13 perf-profile.self.cycles-pp.copy_user_generic_unrolled
0.50 ? 4% +0.1 0.59 perf-profile.self.cycles-pp.__wake_up_common
0.58 ? 5% +0.1 0.68 perf-profile.self.cycles-pp.irqentry_enter
0.93 +0.1 1.04 perf-profile.self.cycles-pp.enqueue_entity
0.82 ? 2% +0.1 0.92 perf-profile.self.cycles-pp.__skb_wait_for_more_packets
0.58 ? 3% +0.1 0.68 perf-profile.self.cycles-pp.nr_iowait_cpu
0.82 ? 3% +0.1 0.94 perf-profile.self.cycles-pp.__ksize
0.75 ? 4% +0.1 0.87 perf-profile.self.cycles-pp.try_to_wake_up
1.19 ? 2% +0.2 1.39 perf-profile.self.cycles-pp.set_next_entity
1.24 ? 4% +0.2 1.45 perf-profile.self.cycles-pp.update_rq_clock
netperf.Throughput_tps
90000 +-------------------------------------------------------------------+
| .+. |
80000 |.+.+.++.+ +.+.++.+.+.+.+.++.+.+.+.+.++ +.+.+ +.+.+.+.+.++.+.+.|
70000 |-O O OO O O O O OO O O O O O O O O O O: O : O : O: O O O OO |
| : : : : |
60000 |-+ : : : : |
50000 |-+ : : : : |
| : : : : |
40000 |-+ : : : : |
30000 |-+ : : :: |
| : : :: |
20000 |-+ :: : |
10000 |-+ : : |
| : : |
0 +-------------------------------------------------------------------+
netperf.Throughput_total_tps
6e+06 +-------------------------------------------------------------------+
| |
5e+06 |.+.+.++.+.+.+.+.++.+.+.+.+.++.+.+.+.+.++ +.+.+ +.+.+.+.+.++.+.+.|
| O O OO O O O O OO O O O O OO O O O O O: O : O : O: O O O O OO |
| : : : : |
4e+06 |-+ : : : : |
| : : : : |
3e+06 |-+ : : : : |
| : : : : |
2e+06 |-+ : : :: |
| : : :: |
| :: : |
1e+06 |-+ : : |
| : : |
0 +-------------------------------------------------------------------+
netperf.workload
1.6e+09 +-----------------------------------------------------------------+
|.+.++.+.+ +.+.+.+.++.+.+.+.++.+.+.++.+ +.++ +.+.++.+.+.++.+.|
1.4e+09 |-O OO O O OO O O O OO O O O OO O O OO : O : O: O : O O O O O |
1.2e+09 |-+ : : : : |
| : : : : |
1e+09 |-+ : : : : |
| : : : : |
8e+08 |-+ : : : : |
| : : : : |
6e+08 |-+ : : : : |
4e+08 |-+ : : : : |
| : : |
2e+08 |-+ : : |
| : : |
0 +-----------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
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.
---
0DAY/LKP+ Test Infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/[email protected] Intel Corporation
Thanks,
Oliver Sang