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Date: Sun, 6 Oct 2019 19:38:47 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Eric Dumazet <edumazet@...gle.com>
Cc: "David S. Miller" <davem@...emloft.net>,
Soheil Hassas Yeganeh <soheil@...gle.com>,
LKML <linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>, lkp@...org
Subject: [tcp] 1a9914884d: netpipe.bigger_5M_Mbps.avg -8.0% regression
Greeting,
FYI, we noticed a -8.0% regression of netpipe.bigger_5M_Mbps.avg due to commit:
commit: 1a9914884db5138682032cf69f2d55739f236c80 ("tcp: batch calls to sk_flush_backlog()")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: netpipe
on test machine: 4 threads Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz with 4G memory
with following parameters:
test: tcp
cluster: cs-localhost
cpufreq_governor: performance
ucode: 0x21
test-description: NetPIPE is a protocol independent performance tool that encapsulates the best of ttcp and netperf and visually represents the network performance under a variety of conditions.
test-url: http://bitspjoule.org/netpipe/
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <rong.a.chen@...el.com>
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 run job.yaml
=========================================================================================
cluster/compiler/cpufreq_governor/kconfig/rootfs/tbox_group/test/testcase/ucode:
cs-localhost/gcc-7/performance/x86_64-rhel-7.6/debian-x86_64-2019-05-14.cgz/lkp-ivb-d04/tcp/netpipe/0x21
commit:
fcc32a2165 ("liquidio: Use pcie_flr() instead of reimplementing it")
1a9914884d ("tcp: batch calls to sk_flush_backlog()")
fcc32a21655e26d3 1a9914884db5138682032cf69f2
---------------- ---------------------------
fail:runs %reproduction fail:runs
| | |
1:4 -25% :4 dmesg.WARNING:at#for_ip_interrupt_entry/0x
%stddev %change %stddev
\ | \
26920 -8.0% 24780 netpipe.bigger_5M_Mbps.avg
150.28 +9.4% 164.43 netpipe.time.elapsed_time
150.28 +9.4% 164.43 netpipe.time.elapsed_time.max
86.00 +2.3% 88.00 netpipe.time.percent_of_cpu_this_job_got
127.29 +12.6% 143.34 netpipe.time.system_time
3699450 +1.8% 3764243 netpipe.time.voluntary_context_switches
0.00 ± 33% +0.0 0.01 ±115% mpstat.cpu.all.iowait%
5539 +1.7% 5633 proc-vmstat.nr_shmem
225822 +7.2% 242028 proc-vmstat.pgfault
55.25 -2.7% 53.75 vmstat.cpu.id
107545 -6.2% 100878 vmstat.system.cs
13936 -5.1% 13223 vmstat.system.in
981178 ± 9% -11.6% 867496 ± 2% cpuidle.C1E.usage
219332 ± 6% +69.2% 371070 ± 33% cpuidle.C6.usage
159555 +18.7% 189397 ± 5% cpuidle.POLL.time
26366 ± 4% +65.5% 43647 ± 8% cpuidle.POLL.usage
40000 ± 5% +11.1% 44434 ± 4% softirqs.CPU0.SCHED
69896 ± 4% +11.0% 77578 ± 3% softirqs.CPU1.TIMER
35079 ± 2% +16.4% 40815 softirqs.CPU3.SCHED
151984 +10.7% 168187 softirqs.SCHED
1584 +3.3% 1636 turbostat.Avg_MHz
6.39 ± 5% -1.2 5.20 ± 3% turbostat.C1%
981176 ± 9% -11.6% 867494 ± 2% turbostat.C1E
9.48 ± 16% -2.1 7.39 ± 2% turbostat.C1E%
219331 ± 6% +69.2% 371070 ± 33% turbostat.C6
0.92 ± 59% -69.1% 0.28 ± 11% turbostat.CPU%c6
4025 ± 2% +8.4% 4361 interrupts.CAL:Function_call_interrupts
22995 ± 11% -27.9% 16570 ± 13% interrupts.CPU1.RES:Rescheduling_interrupts
926.25 ± 3% +21.0% 1121 interrupts.CPU2.CAL:Function_call_interrupts
20381 ± 12% -48.3% 10532 ± 24% interrupts.CPU2.RES:Rescheduling_interrupts
477890 ± 2% +13.4% 541884 ± 3% interrupts.CPU3.LOC:Local_timer_interrupts
960.50 ±166% +565.2% 6389 ± 39% interrupts.CPU3.NMI:Non-maskable_interrupts
960.50 ±166% +565.2% 6389 ± 39% interrupts.CPU3.PMI:Performance_monitoring_interrupts
84789 ± 15% -34.0% 55991 ± 4% interrupts.RES:Rescheduling_interrupts
108.00 ± 11% -19.0% 87.50 ± 16% interrupts.TLB:TLB_shootdowns
554079 ± 21% -27.0% 404433 ± 6% sched_debug.cfs_rq:/.load.max
225.69 ± 17% -21.7% 176.67 ± 13% sched_debug.cfs_rq:/.runnable_load_avg.avg
470.75 ± 20% -41.0% 277.75 ± 8% sched_debug.cfs_rq:/.runnable_load_avg.max
170.37 ± 18% -47.8% 88.97 ± 20% sched_debug.cfs_rq:/.runnable_load_avg.stddev
458733 ± 30% -30.4% 319089 ± 3% sched_debug.cfs_rq:/.runnable_weight.max
1490943 ± 4% -10.4% 1335260 ± 5% sched_debug.cpu.nr_switches.min
-7.83 +38.3% -10.83 sched_debug.cpu.nr_uninterruptible.min
6.19 ± 8% +30.3% 8.06 ± 13% sched_debug.cpu.nr_uninterruptible.stddev
1482291 ± 4% -10.5% 1326215 ± 5% sched_debug.cpu.sched_count.min
726955 ± 4% -9.0% 661412 ± 5% sched_debug.cpu.sched_goidle.min
743551 ± 4% -10.3% 666695 ± 5% sched_debug.cpu.ttwu_count.min
260937 ± 8% -19.0% 211342 ± 18% sched_debug.cpu.ttwu_local.max
4.265e+08 ± 8% -20.0% 3.411e+08 ± 14% perf-stat.i.branch-instructions
2.499e+08 ± 4% -21.6% 1.959e+08 ± 17% perf-stat.i.cache-references
109510 -6.6% 102314 perf-stat.i.context-switches
3211371 ± 4% -15.4% 2716219 ± 9% perf-stat.i.dTLB-load-misses
9.824e+08 ± 5% -20.9% 7.772e+08 ± 16% perf-stat.i.dTLB-loads
853729 ± 4% -16.1% 715879 ± 10% perf-stat.i.dTLB-store-misses
7.672e+08 ± 4% -21.1% 6.056e+08 ± 17% perf-stat.i.dTLB-stores
712689 ± 3% -17.8% 586172 ± 14% perf-stat.i.iTLB-load-misses
324859 ± 4% -16.0% 272850 ± 15% perf-stat.i.iTLB-loads
2.062e+09 ± 8% -20.0% 1.649e+09 ± 14% perf-stat.i.instructions
0.30 ± 3% -18.0% 0.25 ± 12% perf-stat.i.ipc
27.16 +3.6 30.73 ± 3% perf-stat.overall.cache-miss-rate%
4.24e+08 ± 8% -20.0% 3.393e+08 ± 14% perf-stat.ps.branch-instructions
2.484e+08 ± 3% -21.5% 1.949e+08 ± 17% perf-stat.ps.cache-references
108872 -6.5% 101753 perf-stat.ps.context-switches
3192441 ± 4% -15.4% 2701404 ± 9% perf-stat.ps.dTLB-load-misses
9.766e+08 ± 5% -20.8% 7.73e+08 ± 16% perf-stat.ps.dTLB-loads
848715 ± 4% -16.1% 711942 ± 10% perf-stat.ps.dTLB-store-misses
7.627e+08 ± 4% -21.0% 6.023e+08 ± 17% perf-stat.ps.dTLB-stores
708519 ± 3% -17.7% 583007 ± 14% perf-stat.ps.iTLB-load-misses
322966 ± 4% -16.0% 271378 ± 15% perf-stat.ps.iTLB-loads
2.05e+09 ± 8% -20.0% 1.64e+09 ± 14% perf-stat.ps.instructions
40.55 ± 6% -9.9 30.64 ± 22% perf-profile.calltrace.cycles-pp.write
40.38 ± 6% -9.9 30.52 ± 22% perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
40.37 ± 6% -9.9 30.52 ± 22% perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
40.35 ± 6% -9.8 30.51 ± 22% perf-profile.calltrace.cycles-pp.new_sync_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
40.31 ± 6% -9.8 30.47 ± 22% perf-profile.calltrace.cycles-pp.sock_write_iter.new_sync_write.vfs_write.ksys_write.do_syscall_64
40.30 ± 6% -9.8 30.46 ± 22% perf-profile.calltrace.cycles-pp.tcp_sendmsg.sock_sendmsg.sock_write_iter.new_sync_write.vfs_write
40.31 ± 6% -9.8 30.47 ± 22% perf-profile.calltrace.cycles-pp.sock_sendmsg.sock_write_iter.new_sync_write.vfs_write.ksys_write
40.38 ± 6% -9.8 30.54 ± 22% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write
40.38 ± 6% -9.8 30.54 ± 22% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
40.23 ± 6% -9.8 30.43 ± 22% perf-profile.calltrace.cycles-pp.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg.sock_write_iter.new_sync_write
26.63 ± 6% -6.2 20.48 ± 23% perf-profile.calltrace.cycles-pp._copy_from_iter_full.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg.sock_write_iter
26.27 ± 6% -6.2 20.12 ± 23% perf-profile.calltrace.cycles-pp.copy_user_enhanced_fast_string.copyin._copy_from_iter_full.tcp_sendmsg_locked.tcp_sendmsg
26.44 ± 6% -6.1 20.32 ± 23% perf-profile.calltrace.cycles-pp.copyin._copy_from_iter_full.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg
26.41 ± 10% -5.6 20.84 ± 21% perf-profile.calltrace.cycles-pp.read
25.61 ± 10% -5.3 20.27 ± 21% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.read
25.56 ± 10% -5.3 20.23 ± 21% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
24.89 ± 10% -5.1 19.84 ± 21% perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
24.75 ± 10% -5.0 19.74 ± 21% perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
24.15 ± 10% -4.8 19.37 ± 21% perf-profile.calltrace.cycles-pp.new_sync_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
24.00 ± 10% -4.7 19.30 ± 21% perf-profile.calltrace.cycles-pp.sock_read_iter.new_sync_read.vfs_read.ksys_read.do_syscall_64
23.77 ± 10% -4.6 19.17 ± 21% perf-profile.calltrace.cycles-pp.inet_recvmsg.sock_read_iter.new_sync_read.vfs_read.ksys_read
23.71 ± 10% -4.6 19.14 ± 21% perf-profile.calltrace.cycles-pp.tcp_recvmsg.inet_recvmsg.sock_read_iter.new_sync_read.vfs_read
9.44 ± 7% -2.6 6.86 ± 23% perf-profile.calltrace.cycles-pp.tcp_write_xmit.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg.sock_write_iter
8.53 ± 8% -2.4 6.17 ± 23% perf-profile.calltrace.cycles-pp.__tcp_transmit_skb.tcp_write_xmit.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg
8.02 ± 8% -2.3 5.72 ± 23% perf-profile.calltrace.cycles-pp.__ip_queue_xmit.__tcp_transmit_skb.tcp_write_xmit.tcp_sendmsg_locked.tcp_sendmsg
7.66 ± 7% -2.2 5.46 ± 23% perf-profile.calltrace.cycles-pp.ip_output.__ip_queue_xmit.__tcp_transmit_skb.tcp_write_xmit.tcp_sendmsg_locked
7.28 ± 8% -2.1 5.22 ± 23% perf-profile.calltrace.cycles-pp.ip_finish_output2.ip_output.__ip_queue_xmit.__tcp_transmit_skb.tcp_write_xmit
7.19 ± 9% -2.0 5.23 ± 27% perf-profile.calltrace.cycles-pp.do_softirq.__local_bh_enable_ip.ip_finish_output2.ip_output.__ip_queue_xmit
7.22 ± 9% -1.9 5.28 ± 27% perf-profile.calltrace.cycles-pp.__local_bh_enable_ip.ip_finish_output2.ip_output.__ip_queue_xmit.__tcp_transmit_skb
7.09 ± 10% -1.9 5.16 ± 27% perf-profile.calltrace.cycles-pp.do_softirq_own_stack.do_softirq.__local_bh_enable_ip.ip_finish_output2.ip_output
7.05 ± 10% -1.9 5.14 ± 27% perf-profile.calltrace.cycles-pp.__softirqentry_text_start.do_softirq_own_stack.do_softirq.__local_bh_enable_ip.ip_finish_output2
6.89 ± 10% -1.8 5.04 ± 28% perf-profile.calltrace.cycles-pp.net_rx_action.__softirqentry_text_start.do_softirq_own_stack.do_softirq.__local_bh_enable_ip
6.75 ± 10% -1.8 4.92 ± 28% perf-profile.calltrace.cycles-pp.process_backlog.net_rx_action.__softirqentry_text_start.do_softirq_own_stack.do_softirq
6.56 ± 10% -1.8 4.80 ± 27% perf-profile.calltrace.cycles-pp.__netif_receive_skb_one_core.process_backlog.net_rx_action.__softirqentry_text_start.do_softirq_own_stack
5.54 ± 12% -1.6 3.95 ± 23% perf-profile.calltrace.cycles-pp.ip_local_deliver_finish.ip_local_deliver.ip_rcv.__netif_receive_skb_one_core.process_backlog
5.49 ± 12% -1.6 3.92 ± 23% perf-profile.calltrace.cycles-pp.ip_protocol_deliver_rcu.ip_local_deliver_finish.ip_local_deliver.ip_rcv.__netif_receive_skb_one_core
5.38 ± 12% -1.5 3.86 ± 23% perf-profile.calltrace.cycles-pp.tcp_v4_rcv.ip_protocol_deliver_rcu.ip_local_deliver_finish.ip_local_deliver.ip_rcv
5.62 ± 13% -1.5 4.12 ± 27% perf-profile.calltrace.cycles-pp.ip_local_deliver.ip_rcv.__netif_receive_skb_one_core.process_backlog.net_rx_action
1.93 ± 34% -1.2 0.78 ± 63% perf-profile.calltrace.cycles-pp.printk.irq_work_run_list.irq_work_run.smp_irq_work_interrupt.irq_work_interrupt
1.93 ± 34% -1.2 0.78 ± 63% perf-profile.calltrace.cycles-pp.vprintk_emit.printk.irq_work_run_list.irq_work_run.smp_irq_work_interrupt
1.93 ± 34% -1.1 0.78 ± 63% perf-profile.calltrace.cycles-pp.console_unlock.vprintk_emit.printk.irq_work_run_list.irq_work_run
1.83 ± 35% -1.1 0.75 ± 64% perf-profile.calltrace.cycles-pp.serial8250_console_write.console_unlock.vprintk_emit.printk.irq_work_run_list
1.80 ± 35% -1.1 0.75 ± 65% perf-profile.calltrace.cycles-pp.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit.printk
1.75 ± 35% -1.0 0.73 ± 65% perf-profile.calltrace.cycles-pp.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit
1.75 ± 35% -1.0 0.73 ± 65% perf-profile.calltrace.cycles-pp.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock
4.32 ± 10% -1.0 3.31 ± 25% perf-profile.calltrace.cycles-pp.tcp_v4_do_rcv.tcp_v4_rcv.ip_protocol_deliver_rcu.ip_local_deliver_finish.ip_local_deliver
3.44 ± 10% -0.9 2.51 ± 22% perf-profile.calltrace.cycles-pp.__wake_up_common.__wake_up_common_lock.sock_def_readable.tcp_rcv_established.tcp_v4_do_rcv
3.40 ± 10% -0.9 2.48 ± 23% perf-profile.calltrace.cycles-pp.try_to_wake_up.__wake_up_common.__wake_up_common_lock.sock_def_readable.tcp_rcv_established
2.73 ± 9% -0.8 1.92 ± 25% perf-profile.calltrace.cycles-pp.ttwu_do_activate.try_to_wake_up.__wake_up_common.__wake_up_common_lock.sock_def_readable
2.72 ± 9% -0.8 1.92 ± 25% perf-profile.calltrace.cycles-pp.activate_task.ttwu_do_activate.try_to_wake_up.__wake_up_common.__wake_up_common_lock
2.69 ± 9% -0.8 1.91 ± 25% perf-profile.calltrace.cycles-pp.enqueue_task_fair.activate_task.ttwu_do_activate.try_to_wake_up.__wake_up_common
2.32 ± 17% -0.8 1.55 ± 20% perf-profile.calltrace.cycles-pp.sk_wait_data.tcp_recvmsg.inet_recvmsg.sock_read_iter.new_sync_read
2.55 ± 10% -0.8 1.79 ± 25% perf-profile.calltrace.cycles-pp.enqueue_entity.enqueue_task_fair.activate_task.ttwu_do_activate.try_to_wake_up
1.97 ± 18% -0.7 1.24 ± 19% perf-profile.calltrace.cycles-pp.wait_woken.sk_wait_data.tcp_recvmsg.inet_recvmsg.sock_read_iter
2.17 ± 16% -0.7 1.45 ± 21% perf-profile.calltrace.cycles-pp.__tcp_transmit_skb.tcp_recvmsg.inet_recvmsg.sock_read_iter.new_sync_read
1.59 ± 16% -0.7 0.87 ± 22% perf-profile.calltrace.cycles-pp.__sk_flush_backlog.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg.sock_write_iter
1.54 ± 17% -0.7 0.86 ± 21% perf-profile.calltrace.cycles-pp.__release_sock.__sk_flush_backlog.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg
1.93 ± 16% -0.6 1.29 ± 20% perf-profile.calltrace.cycles-pp.__ip_queue_xmit.__tcp_transmit_skb.tcp_recvmsg.inet_recvmsg.sock_read_iter
1.46 ± 16% -0.6 0.84 ± 20% perf-profile.calltrace.cycles-pp.tcp_rcv_established.tcp_v4_do_rcv.__release_sock.__sk_flush_backlog.tcp_sendmsg_locked
1.47 ± 16% -0.6 0.85 ± 21% perf-profile.calltrace.cycles-pp.tcp_v4_do_rcv.__release_sock.__sk_flush_backlog.tcp_sendmsg_locked.tcp_sendmsg
1.75 ± 18% -0.6 1.16 ± 19% perf-profile.calltrace.cycles-pp.ip_output.__ip_queue_xmit.__tcp_transmit_skb.tcp_recvmsg.inet_recvmsg
1.98 ± 9% -0.6 1.42 ± 27% perf-profile.calltrace.cycles-pp.__account_scheduler_latency.enqueue_entity.enqueue_task_fair.activate_task.ttwu_do_activate
0.86 ± 13% -0.5 0.32 ±100% perf-profile.calltrace.cycles-pp.dequeue_task_fair.__sched_text_start.schedule.schedule_timeout.wait_woken
1.83 ± 8% -0.5 1.31 ± 28% perf-profile.calltrace.cycles-pp.stack_trace_save_tsk.__account_scheduler_latency.enqueue_entity.enqueue_task_fair.activate_task
1.50 ± 22% -0.5 1.00 ± 16% perf-profile.calltrace.cycles-pp.ip_finish_output2.ip_output.__ip_queue_xmit.__tcp_transmit_skb.tcp_recvmsg
1.28 ± 19% -0.5 0.80 ± 21% perf-profile.calltrace.cycles-pp.tcp_ack.tcp_rcv_established.tcp_v4_do_rcv.__release_sock.__sk_flush_backlog
0.76 ± 14% -0.5 0.28 ±100% perf-profile.calltrace.cycles-pp.dequeue_entity.dequeue_task_fair.__sched_text_start.schedule.schedule_timeout
1.70 ± 7% -0.5 1.22 ± 27% perf-profile.calltrace.cycles-pp.arch_stack_walk.stack_trace_save_tsk.__account_scheduler_latency.enqueue_entity.enqueue_task_fair
1.02 ± 18% -0.3 0.76 ± 22% perf-profile.calltrace.cycles-pp.tcp_clean_rtx_queue.tcp_ack.tcp_rcv_established.tcp_v4_do_rcv.__release_sock
66.30 ± 7% -15.0 51.28 ± 21% perf-profile.children.cycles-pp.do_syscall_64
66.34 ± 7% -15.0 51.33 ± 21% perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
40.55 ± 6% -9.9 30.65 ± 22% perf-profile.children.cycles-pp.write
40.38 ± 6% -9.8 30.54 ± 22% perf-profile.children.cycles-pp.ksys_write
40.31 ± 6% -9.8 30.47 ± 22% perf-profile.children.cycles-pp.sock_write_iter
40.37 ± 6% -9.8 30.52 ± 22% perf-profile.children.cycles-pp.vfs_write
40.30 ± 6% -9.8 30.46 ± 22% perf-profile.children.cycles-pp.tcp_sendmsg
40.35 ± 6% -9.8 30.52 ± 22% perf-profile.children.cycles-pp.new_sync_write
40.31 ± 6% -9.8 30.48 ± 22% perf-profile.children.cycles-pp.sock_sendmsg
40.26 ± 6% -9.8 30.44 ± 22% perf-profile.children.cycles-pp.tcp_sendmsg_locked
26.63 ± 6% -6.2 20.48 ± 23% perf-profile.children.cycles-pp._copy_from_iter_full
26.45 ± 6% -6.1 20.32 ± 23% perf-profile.children.cycles-pp.copyin
26.46 ± 10% -5.6 20.88 ± 21% perf-profile.children.cycles-pp.read
24.89 ± 10% -5.1 19.84 ± 21% perf-profile.children.cycles-pp.ksys_read
24.75 ± 10% -5.0 19.75 ± 21% perf-profile.children.cycles-pp.vfs_read
24.15 ± 10% -4.8 19.38 ± 21% perf-profile.children.cycles-pp.new_sync_read
24.00 ± 10% -4.7 19.31 ± 21% perf-profile.children.cycles-pp.sock_read_iter
23.77 ± 10% -4.6 19.17 ± 21% perf-profile.children.cycles-pp.inet_recvmsg
23.72 ± 10% -4.6 19.14 ± 21% perf-profile.children.cycles-pp.tcp_recvmsg
11.05 ± 8% -3.1 7.98 ± 22% perf-profile.children.cycles-pp.__tcp_transmit_skb
10.25 ± 7% -2.9 7.32 ± 22% perf-profile.children.cycles-pp.__ip_queue_xmit
9.68 ± 7% -2.8 6.91 ± 22% perf-profile.children.cycles-pp.ip_output
9.76 ± 7% -2.6 7.20 ± 22% perf-profile.children.cycles-pp.tcp_write_xmit
9.03 ± 6% -2.5 6.49 ± 22% perf-profile.children.cycles-pp.ip_finish_output2
7.64 ± 11% -1.9 5.73 ± 22% perf-profile.children.cycles-pp.__softirqentry_text_start
7.49 ± 9% -1.8 5.67 ± 23% perf-profile.children.cycles-pp.__local_bh_enable_ip
7.42 ± 9% -1.8 5.60 ± 23% perf-profile.children.cycles-pp.do_softirq
7.30 ± 10% -1.8 5.53 ± 23% perf-profile.children.cycles-pp.do_softirq_own_stack
7.12 ± 10% -1.7 5.41 ± 23% perf-profile.children.cycles-pp.net_rx_action
6.95 ± 10% -1.7 5.26 ± 24% perf-profile.children.cycles-pp.process_backlog
6.77 ± 10% -1.6 5.12 ± 24% perf-profile.children.cycles-pp.__netif_receive_skb_one_core
5.91 ± 11% -1.5 4.37 ± 23% perf-profile.children.cycles-pp.tcp_rcv_established
5.95 ± 11% -1.5 4.40 ± 23% perf-profile.children.cycles-pp.tcp_v4_do_rcv
6.02 ± 9% -1.4 4.63 ± 24% perf-profile.children.cycles-pp.ip_local_deliver
5.92 ± 9% -1.4 4.57 ± 23% perf-profile.children.cycles-pp.ip_local_deliver_finish
5.86 ± 9% -1.3 4.53 ± 23% perf-profile.children.cycles-pp.ip_protocol_deliver_rcu
5.76 ± 9% -1.3 4.44 ± 23% perf-profile.children.cycles-pp.tcp_v4_rcv
3.64 ± 10% -1.0 2.66 ± 22% perf-profile.children.cycles-pp.__wake_up_common
3.61 ± 10% -1.0 2.64 ± 23% perf-profile.children.cycles-pp.try_to_wake_up
2.90 ± 9% -0.9 2.03 ± 25% perf-profile.children.cycles-pp.ttwu_do_activate
2.89 ± 9% -0.9 2.03 ± 25% perf-profile.children.cycles-pp.activate_task
2.85 ± 8% -0.8 2.02 ± 25% perf-profile.children.cycles-pp.enqueue_task_fair
2.71 ± 9% -0.8 1.90 ± 25% perf-profile.children.cycles-pp.enqueue_entity
2.54 ± 10% -0.8 1.75 ± 24% perf-profile.children.cycles-pp.__sched_text_start
2.32 ± 17% -0.8 1.55 ± 20% perf-profile.children.cycles-pp.sk_wait_data
1.97 ± 18% -0.7 1.24 ± 19% perf-profile.children.cycles-pp.wait_woken
1.59 ± 16% -0.7 0.87 ± 22% perf-profile.children.cycles-pp.__sk_flush_backlog
1.58 ± 18% -0.7 0.92 ± 22% perf-profile.children.cycles-pp.__release_sock
1.34 ± 14% -0.6 0.71 ± 15% perf-profile.children.cycles-pp.__dev_queue_xmit
2.10 ± 9% -0.6 1.49 ± 27% perf-profile.children.cycles-pp.__account_scheduler_latency
1.94 ± 8% -0.6 1.37 ± 28% perf-profile.children.cycles-pp.stack_trace_save_tsk
1.81 ± 6% -0.5 1.28 ± 28% perf-profile.children.cycles-pp.arch_stack_walk
1.33 ± 18% -0.5 0.83 ± 20% perf-profile.children.cycles-pp.tcp_ack
0.82 ± 21% -0.4 0.43 ± 21% perf-profile.children.cycles-pp.dev_hard_start_xmit
1.18 ± 9% -0.4 0.82 ± 26% perf-profile.children.cycles-pp.__kfree_skb
0.75 ± 28% -0.4 0.39 ± 25% perf-profile.children.cycles-pp.loopback_xmit
0.87 ± 12% -0.3 0.57 ± 11% perf-profile.children.cycles-pp.dequeue_task_fair
1.06 ± 18% -0.3 0.78 ± 20% perf-profile.children.cycles-pp.tcp_clean_rtx_queue
0.79 ± 14% -0.3 0.52 ± 13% perf-profile.children.cycles-pp.dequeue_entity
1.09 ± 10% -0.3 0.82 ± 14% perf-profile.children.cycles-pp.menu_select
0.31 ± 19% -0.2 0.11 ± 25% perf-profile.children.cycles-pp.tcp_schedule_loss_probe
0.33 ± 19% -0.2 0.15 ± 28% perf-profile.children.cycles-pp.__netif_receive_skb_core
0.36 ± 13% -0.2 0.18 ± 26% perf-profile.children.cycles-pp.security_file_permission
0.27 ± 15% -0.2 0.12 ± 58% perf-profile.children.cycles-pp.unwind_get_return_address
0.48 ± 15% -0.1 0.34 ± 9% perf-profile.children.cycles-pp.update_load_avg
0.44 ± 16% -0.1 0.30 ± 20% perf-profile.children.cycles-pp.security_sock_rcv_skb
0.46 ± 19% -0.1 0.33 ± 20% perf-profile.children.cycles-pp.sk_filter_trim_cap
0.31 ± 31% -0.1 0.18 ± 30% perf-profile.children.cycles-pp.update_process_times
0.25 ± 22% -0.1 0.13 ± 40% perf-profile.children.cycles-pp.__x86_indirect_thunk_rax
0.20 ± 18% -0.1 0.08 ± 65% perf-profile.children.cycles-pp.avc_has_perm
0.17 ± 17% -0.1 0.04 ± 59% perf-profile.children.cycles-pp.file_has_perm
0.40 ± 16% -0.1 0.28 ± 24% perf-profile.children.cycles-pp.selinux_socket_sock_rcv_skb
0.23 ± 13% -0.1 0.12 ± 23% perf-profile.children.cycles-pp.selinux_parse_skb
0.22 ± 15% -0.1 0.11 ± 57% perf-profile.children.cycles-pp.__kernel_text_address
0.34 ± 18% -0.1 0.23 ± 26% perf-profile.children.cycles-pp._raw_spin_lock
0.18 ± 10% -0.1 0.07 ± 58% perf-profile.children.cycles-pp.kernel_text_address
0.26 ± 17% -0.1 0.16 ± 33% perf-profile.children.cycles-pp.__unwind_start
0.22 ± 10% -0.1 0.12 ± 25% perf-profile.children.cycles-pp.update_cfs_group
0.57 ± 6% -0.1 0.47 ± 13% perf-profile.children.cycles-pp.tick_nohz_get_sleep_length
0.20 ± 10% -0.1 0.10 ± 10% perf-profile.children.cycles-pp.validate_xmit_skb
0.26 ± 23% -0.1 0.17 ± 12% perf-profile.children.cycles-pp.entry_SYSCALL_64
0.26 ± 19% -0.1 0.17 ± 25% perf-profile.children.cycles-pp.skb_release_all
0.24 ± 17% -0.1 0.15 ± 20% perf-profile.children.cycles-pp.skb_release_head_state
0.35 ± 12% -0.1 0.27 ± 17% perf-profile.children.cycles-pp.ktime_get
0.33 ± 11% -0.1 0.26 ± 16% perf-profile.children.cycles-pp.get_next_timer_interrupt
0.14 ± 9% -0.1 0.07 ± 71% perf-profile.children.cycles-pp.tick_nohz_idle_exit
0.10 ± 18% -0.1 0.03 ±102% perf-profile.children.cycles-pp.tcp_queue_rcv
0.15 ± 24% -0.1 0.08 ± 29% perf-profile.children.cycles-pp.pick_next_task_idle
0.20 ± 7% -0.1 0.14 ± 26% perf-profile.children.cycles-pp.__update_load_avg_cfs_rq
0.18 ± 8% -0.1 0.12 ± 36% perf-profile.children.cycles-pp.tcp_mstamp_refresh
0.12 ± 22% -0.1 0.06 ± 60% perf-profile.children.cycles-pp.cfb_imageblit
0.10 ± 27% -0.1 0.04 ± 63% perf-profile.children.cycles-pp.cpuacct_charge
0.17 ± 26% -0.1 0.12 ± 12% perf-profile.children.cycles-pp.update_rq_clock
0.12 ± 22% -0.1 0.07 ± 59% perf-profile.children.cycles-pp.drm_fb_helper_cfb_imageblit
0.09 ± 35% -0.1 0.04 ±113% perf-profile.children.cycles-pp.in_sched_functions
0.12 ± 18% -0.0 0.07 ± 20% perf-profile.children.cycles-pp.scheduler_tick
0.13 ± 33% -0.0 0.08 ± 19% perf-profile.children.cycles-pp.ns_to_timespec64
0.08 ± 17% -0.0 0.04 ± 60% perf-profile.children.cycles-pp.netif_skb_features
0.11 ± 17% -0.0 0.08 ± 8% perf-profile.children.cycles-pp.__update_load_avg_se
0.03 ±100% +0.0 0.07 ± 7% perf-profile.children.cycles-pp.tcp_rbtree_insert
0.07 ± 50% +0.1 0.15 ± 32% perf-profile.children.cycles-pp.__do_execve_file
0.07 ± 50% +0.1 0.15 ± 34% perf-profile.children.cycles-pp.__x64_sys_execve
0.07 ± 50% +0.1 0.15 ± 31% perf-profile.children.cycles-pp.execve
0.05 ± 63% +0.1 0.18 ± 33% perf-profile.children.cycles-pp.tcp_add_backlog
0.69 ± 6% -0.2 0.46 ± 25% perf-profile.self.cycles-pp.unwind_next_frame
0.32 ± 18% -0.2 0.15 ± 28% perf-profile.self.cycles-pp.__netif_receive_skb_core
0.44 ± 15% -0.1 0.30 ± 24% perf-profile.self.cycles-pp.__check_object_size
0.48 ± 3% -0.1 0.35 ± 21% perf-profile.self.cycles-pp.do_syscall_64
0.16 ± 32% -0.1 0.04 ±108% perf-profile.self.cycles-pp.dequeue_entity
0.20 ± 21% -0.1 0.08 ± 65% perf-profile.self.cycles-pp.avc_has_perm
0.25 ± 21% -0.1 0.14 ± 29% perf-profile.self.cycles-pp.ip_finish_output2
0.23 ± 10% -0.1 0.12 ± 23% perf-profile.self.cycles-pp.selinux_parse_skb
0.32 ± 14% -0.1 0.21 ± 30% perf-profile.self.cycles-pp.menu_select
0.29 ± 14% -0.1 0.18 ± 20% perf-profile.self.cycles-pp.skb_release_data
0.22 ± 10% -0.1 0.11 ± 28% perf-profile.self.cycles-pp.update_cfs_group
0.22 ± 23% -0.1 0.12 ± 49% perf-profile.self.cycles-pp.__x86_indirect_thunk_rax
0.32 ± 15% -0.1 0.22 ± 23% perf-profile.self.cycles-pp._raw_spin_lock
0.14 ± 13% -0.1 0.04 ± 58% perf-profile.self.cycles-pp.tcp_clean_rtx_queue
0.24 ± 24% -0.1 0.15 ± 13% perf-profile.self.cycles-pp.entry_SYSCALL_64
0.22 ± 11% -0.1 0.14 ± 21% perf-profile.self.cycles-pp.tcp_v4_rcv
0.17 ± 8% -0.1 0.09 ± 17% perf-profile.self.cycles-pp.wait_woken
0.10 ± 18% -0.1 0.03 ±102% perf-profile.self.cycles-pp.tcp_queue_rcv
0.11 ± 33% -0.1 0.04 ±103% perf-profile.self.cycles-pp.new_sync_read
0.10 ± 15% -0.1 0.03 ±100% perf-profile.self.cycles-pp.validate_xmit_skb
0.15 ± 19% -0.1 0.08 ± 31% perf-profile.self.cycles-pp.process_backlog
0.19 ± 18% -0.1 0.13 ± 16% perf-profile.self.cycles-pp.__skb_datagram_iter
0.12 ± 22% -0.1 0.06 ± 60% perf-profile.self.cycles-pp.cfb_imageblit
0.15 ± 19% -0.1 0.09 ± 34% perf-profile.self.cycles-pp.__softirqentry_text_start
0.10 ± 25% -0.1 0.04 ± 63% perf-profile.self.cycles-pp.cpuacct_charge
0.13 ± 33% -0.0 0.08 ± 19% perf-profile.self.cycles-pp.ns_to_timespec64
0.10 ± 30% -0.0 0.06 ± 11% perf-profile.self.cycles-pp.ip_rcv_finish_core
0.03 ±100% +0.0 0.07 ± 7% perf-profile.self.cycles-pp.tcp_rbtree_insert
netpipe.time.system_time
155 +-+-----O-------------------------------------------------------------+
| O O |
150 +-+ O |
|O O O O |
145 +-O O O O O OOOO OO O O O O |
O O O OO O O O OOOOO |
140 +-+ O O |
| |
135 +-+ |
| |
130 +-+ + + + + + |
|+++ .++ ++ +. ++ +++.+ ++ ++++.++ ++ +++.++ ++++ +.+++++++++.++++|
125 +-+ + +++ ++ ++ + + |
| |
120 +-+-------------------------------------------------------------------+
netpipe.time.percent_of_cpu_this_job_got
89 +-+--------OO--------------------------------------------------------+
| |
88.5 +-+ |
88 OOOOOO O OO OOOO OOOOOOOOOOO OOOOOOOOOO O |
| |
87.5 +-+ |
| |
87 +-+ O |
| |
86.5 +-+ |
86 +-+ + ++ +++ +++.++++ + + +.+ + + + +.+ + +++++++ +++++++.+++++|
|: : :: : : : : : : : : : : : : : : : : : |
85.5 +-+ ::: :: :: ::: ::: ::::: ::: :::: : : |
| :: :: : : : :: : : : :: : : : : : |
85 +-+------------------------------------------------------------------+
netpipe.time.elapsed_time
180 +-+-------------------------------------------------------------------+
| O |
175 +-+ O O |
| O |
170 +O+ O |
| O O O O O OO O |
165 O-OO OO O O OOOO O O OO O O O |
| O OO O O |
160 +-+ O |
| |
155 +-+ + |
| +++ +++ +++ ++ :+.+ + + |
150 +-++ .++ : ++. ++ +++.+ ++ ++.++ ++ +.+ ++++ +++++ ++.++ +|
| + ++ ++ ++ + + |
145 +-+-------------------------------------------------------------------+
netpipe.time.elapsed_time.max
180 +-+-------------------------------------------------------------------+
| O |
175 +-+ O O |
| O |
170 +O+ O |
| O O O O O OO O |
165 O-OO OO O O OOOO O O OO O O O |
| O OO O O |
160 +-+ O |
| |
155 +-+ + |
| +++ +++ +++ ++ :+.+ + + |
150 +-++ .++ : ++. ++ +++.+ ++ ++.++ ++ +.+ ++++ +++++ ++.++ +|
| + ++ ++ ++ + + |
145 +-+-------------------------------------------------------------------+
netpipe.bigger_5M_Mbps.avg
27500 +-+-----------------------------------------------------------------+
27000 +-+ ++ +++++.+ |
|++ +++.+ + ++ +++ ++++ +++.+ ++++ +++ +.+++ ++++++.+ ++++|
26500 +-++ + + + + + ++ +++ + |
26000 +-+ |
| |
25500 +-+ O |
25000 +-+OO OO OOO O O O O O OO |
24500 +-O O OO OO OO O O O |
OO O OO O O |
24000 +-+ O O |
23500 +-+ |
| O O |
23000 +-+ |
22500 +-+-----O-----------------------------------------------------------+
[*] 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.
Thanks,
Rong Chen
View attachment "config-5.3.0-rc3-00727-g1a9914884db51" of type "text/plain" (199638 bytes)
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