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Date: Fri, 4 Nov 2016 09:56:50 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Cong Wang <xiyou.wangcong@...il.com>
Cc: netdev@...r.kernel.org, Cong Wang <xiyou.wangcong@...il.com>,
Andrey Konovalov <andreyknvl@...gle.com>,
Eric Dumazet <eric.dumazet@...il.com>,
Peter Zijlstra <peterz@...radead.org>, lkp@...org
Subject: [lkp] [inet] 34630bc073: netperf.Throughput_tps 4.2% improvement
Greeting,
FYI, we noticed a 4.2% improvement of netperf.Throughput_tps due to commit:
commit 34630bc07341e30e42a974840a0d622b31f1845c ("inet: fix sleeping inside inet_wait_for_connect()")
https://github.com/0day-ci/linux Cong-Wang/inet-fix-sleeping-inside-inet_wait_for_connect/20161102-070925
in testcase: netperf
on test machine: 8 threads Intel(R) Atom(TM) CPU C2750 @ 2.40GHz with 16G memory
with following parameters:
ip: ipv4
runtime: 300s
nr_threads: 200%
cluster: cs-localhost
test: TCP_CRR
cpufreq_governor: performance
Netperf is a benchmark that can be use to measure various aspect of networking performance.
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.
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/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/ip/kconfig/nr_threads/rootfs/runtime/tbox_group/test/testcase:
cs-localhost/gcc-6/performance/ipv4/x86_64-rhel-7.2/200%/debian-x86_64-2016-08-31.cgz/300s/lkp-avoton3/TCP_CRR/netperf
commit:
b9b84fc07d ("net: mv643xx_eth: ensure coalesce settings survive read-modify-write")
34630bc073 ("inet: fix sleeping inside inet_wait_for_connect()")
b9b84fc07dbc6ac7 34630bc07341e30e42a974840a
---------------- --------------------------
%stddev %change %stddev
\ | \
2915 ± 0% +4.2% 3039 ± 0% netperf.Throughput_tps
20900055 ± 0% -97.4% 540516 ± 8% netperf.time.involuntary_context_switches
517.25 ± 0% +13.8% 588.50 ± 0% netperf.time.percent_of_cpu_this_job_got
1536 ± 0% +13.9% 1750 ± 0% netperf.time.system_time
7199745 ± 1% +100.6% 14442880 ± 0% netperf.time.voluntary_context_switches
18454 ± 1% +28.3% 23680 ± 4% softirqs.SCHED
0.08 ± 0% +34.4% 0.11 ± 7% turbostat.CPU%c1
187728 ± 0% -44.8% 103607 ± 0% vmstat.system.cs
9065 ± 1% +24.6% 11296 ± 4% vmstat.system.in
118058 ± 13% +582.9% 806220 ± 17% cpuidle.C1-AVN.time
2948 ± 28% +822.4% 27193 ± 17% cpuidle.C1-AVN.usage
24.75 ± 16% +238.4% 83.75 ± 20% cpuidle.POLL.usage
2121 ± 6% -16.2% 1778 ± 6% slabinfo.cred_jar.num_objs
5215 ± 23% +42.3% 7423 ± 3% slabinfo.kmalloc-32.active_objs
5215 ± 23% +42.3% 7423 ± 3% slabinfo.kmalloc-32.num_objs
2.561e+10 ± 0% -1.4% 2.526e+10 ± 0% perf-stat.branch-misses
1.27 ± 3% +14.3% 1.45 ± 2% perf-stat.cache-miss-rate%
2.882e+09 ± 3% +13.4% 3.269e+09 ± 2% perf-stat.cache-misses
57816048 ± 0% -45.0% 31803360 ± 0% perf-stat.context-switches
8221 ± 2% +24.9% 10268 ± 5% perf-stat.cpu-migrations
2.315e+10 ± 0% -1.1% 2.289e+10 ± 0% perf-stat.iTLB-load-misses
285020 ± 0% +4.2% 296904 ± 0% perf-stat.minor-faults
285022 ± 0% +4.2% 296904 ± 0% perf-stat.page-faults
231706 ± 10% +143.8% 564885 ± 13% sched_debug.cfs_rq:/.MIN_vruntime.avg
645748 ± 13% +49.9% 967850 ± 0% sched_debug.cfs_rq:/.MIN_vruntime.max
297027 ± 10% +52.4% 452531 ± 3% sched_debug.cfs_rq:/.MIN_vruntime.stddev
231706 ± 10% +143.8% 564885 ± 13% sched_debug.cfs_rq:/.max_vruntime.avg
645748 ± 13% +49.9% 967851 ± 0% sched_debug.cfs_rq:/.max_vruntime.max
297027 ± 10% +52.4% 452532 ± 3% sched_debug.cfs_rq:/.max_vruntime.stddev
769174 ± 0% +24.3% 955802 ± 0% sched_debug.cfs_rq:/.min_vruntime.avg
786747 ± 1% +23.4% 970602 ± 0% sched_debug.cfs_rq:/.min_vruntime.max
758458 ± 0% +24.1% 941243 ± 0% sched_debug.cfs_rq:/.min_vruntime.min
1.23 ± 3% +24.9% 1.54 ± 2% sched_debug.cfs_rq:/.nr_running.avg
1.79 ± 4% +18.6% 2.12 ± 6% sched_debug.cfs_rq:/.nr_running.max
0.41 ± 8% +21.7% 0.50 ± 5% sched_debug.cfs_rq:/.nr_running.stddev
107.00 ± 2% -20.2% 85.38 ± 10% sched_debug.cfs_rq:/.runnable_load_avg.min
11.17 ± 14% +66.3% 18.58 ± 23% sched_debug.cfs_rq:/.util_avg.stddev
390011 ± 29% -55.3% 174458 ± 12% sched_debug.cpu.avg_idle.avg
813413 ± 18% -65.5% 280413 ± 22% sched_debug.cpu.avg_idle.max
257758 ± 22% -77.5% 58027 ± 35% sched_debug.cpu.avg_idle.stddev
3.38 ± 25% -45.6% 1.84 ± 20% sched_debug.cpu.clock.stddev
3.38 ± 25% -45.6% 1.84 ± 20% sched_debug.cpu.clock_task.stddev
115535 ± 4% +16.2% 134278 ± 7% sched_debug.cpu.load.min
0.58 ± 3% +22.7% 0.71 ± 8% sched_debug.cpu.nr_running.stddev
3579054 ± 0% -45.0% 1966781 ± 0% sched_debug.cpu.nr_switches.avg
3645312 ± 0% -43.6% 2056851 ± 0% sched_debug.cpu.nr_switches.max
3525172 ± 0% -45.9% 1908138 ± 0% sched_debug.cpu.nr_switches.min
0.00 ± 18% -88.7% 0.00 ± 58% sched_debug.rt_rq:/.rt_time.min
15.67 ± 0% -17.4% 12.94 ± 1% perf-profile.calltrace.cycles-pp.SYSC_recvfrom.sys_recvfrom.entry_SYSCALL_64_fastpath
16.23 ± 0% +19.3% 19.36 ± 0% perf-profile.calltrace.cycles-pp.SYSC_sendto.sys_sendto.entry_SYSCALL_64_fastpath
2.41 ± 3% +10.7% 2.67 ± 1% perf-profile.calltrace.cycles-pp.__release_sock.release_sock.tcp_close.inet_release.sock_release
0.69 ± 2% +137.3% 1.64 ± 3% perf-profile.calltrace.cycles-pp.__release_sock.release_sock.tcp_sendmsg.inet_sendmsg.sock_sendmsg
1.17 ± 4% -100.0% 0.00 ± -1% perf-profile.calltrace.cycles-pp.__schedule.schedule.schedule_timeout.__inet_stream_connect.inet_stream_connect
2.06 ± 1% -13.5% 1.78 ± 2% perf-profile.calltrace.cycles-pp.__schedule.schedule.schedule_timeout.sk_wait_data.tcp_recvmsg
9.07 ± 0% -28.3% 6.51 ± 2% perf-profile.calltrace.cycles-pp.__tcp_ack_snd_check.tcp_rcv_established.tcp_v4_do_rcv.tcp_prequeue_process.tcp_recvmsg
0.82 ± 1% +109.5% 1.71 ± 4% perf-profile.calltrace.cycles-pp.__tcp_ack_snd_check.tcp_rcv_established.tcp_v4_do_rcv.tcp_v4_rcv.ip_local_deliver_finish
12.40 ± 0% +16.7% 14.46 ± 1% perf-profile.calltrace.cycles-pp.__tcp_push_pending_frames.tcp_push.tcp_sendmsg.inet_sendmsg.sock_sendmsg
1.94 ± 3% -25.4% 1.45 ± 1% perf-profile.calltrace.cycles-pp.__wake_up_common.__wake_up_sync_key.tcp_prequeue.tcp_v4_rcv.ip_local_deliver_finish
2.04 ± 3% -25.8% 1.51 ± 2% perf-profile.calltrace.cycles-pp.__wake_up_sync_key.tcp_prequeue.tcp_v4_rcv.ip_local_deliver_finish.ip_local_deliver
1.78 ± 3% -14.8% 1.52 ± 1% perf-profile.calltrace.cycles-pp.activate_task.ttwu_do_activate.try_to_wake_up.default_wake_function.autoremove_wake_function
1.87 ± 3% -26.0% 1.39 ± 1% perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.__wake_up_sync_key.tcp_prequeue.tcp_v4_rcv
1.82 ± 3% -25.9% 1.35 ± 1% perf-profile.calltrace.cycles-pp.default_wake_function.autoremove_wake_function.__wake_up_common.__wake_up_sync_key.tcp_prequeue
2.00 ± 3% -24.8% 1.51 ± 3% perf-profile.calltrace.cycles-pp.dev_hard_start_xmit.__dev_queue_xmit.dev_queue_xmit.ip_finish_output2.ip_finish_output
1.15 ± 5% -65.9% 0.39 ± 57% perf-profile.calltrace.cycles-pp.enqueue_entity.enqueue_task_fair.activate_task.ttwu_do_activate.try_to_wake_up
1.57 ± 3% -14.8% 1.34 ± 1% perf-profile.calltrace.cycles-pp.enqueue_task_fair.activate_task.ttwu_do_activate.try_to_wake_up.default_wake_function
14.95 ± 0% -18.8% 12.14 ± 1% perf-profile.calltrace.cycles-pp.inet_recvmsg.sock_recvmsg.SYSC_recvfrom.sys_recvfrom.entry_SYSCALL_64_fastpath
15.71 ± 0% +20.0% 18.84 ± 0% perf-profile.calltrace.cycles-pp.inet_sendmsg.sock_sendmsg.SYSC_sendto.sys_sendto.entry_SYSCALL_64_fastpath
7.37 ± 0% -17.4% 6.08 ± 1% perf-profile.calltrace.cycles-pp.ip_local_out.ip_queue_xmit.tcp_transmit_skb.tcp_send_ack.__tcp_ack_snd_check
7.59 ± 0% -16.9% 6.31 ± 1% perf-profile.calltrace.cycles-pp.ip_queue_xmit.tcp_transmit_skb.tcp_send_ack.__tcp_ack_snd_check.tcp_rcv_established
9.50 ± 0% +13.6% 10.79 ± 1% perf-profile.calltrace.cycles-pp.ip_queue_xmit.tcp_transmit_skb.tcp_write_xmit.__tcp_push_pending_frames.tcp_push
2.53 ± 2% +10.4% 2.79 ± 1% perf-profile.calltrace.cycles-pp.release_sock.tcp_close.inet_release.sock_release.sock_close
0.82 ± 2% +117.7% 1.79 ± 2% perf-profile.calltrace.cycles-pp.release_sock.tcp_sendmsg.inet_sendmsg.sock_sendmsg.SYSC_sendto
1.24 ± 3% -100.0% 0.00 ± -1% perf-profile.calltrace.cycles-pp.schedule.schedule_timeout.__inet_stream_connect.inet_stream_connect.SYSC_connect
2.17 ± 1% -12.8% 1.89 ± 2% perf-profile.calltrace.cycles-pp.schedule.schedule_timeout.sk_wait_data.tcp_recvmsg.inet_recvmsg
1.28 ± 3% -100.0% 0.00 ± -1% perf-profile.calltrace.cycles-pp.schedule_timeout.__inet_stream_connect.inet_stream_connect.SYSC_connect.sys_connect
2.21 ± 1% -13.0% 1.93 ± 2% perf-profile.calltrace.cycles-pp.schedule_timeout.sk_wait_data.tcp_recvmsg.inet_recvmsg.sock_recvmsg
0.81 ± 25% +54.9% 1.25 ± 2% perf-profile.calltrace.cycles-pp.security_sock_rcv_skb.sk_filter_trim_cap.tcp_v4_rcv.ip_local_deliver_finish.ip_local_deliver
1.19 ± 23% +53.6% 1.82 ± 14% perf-profile.calltrace.cycles-pp.sk_filter_trim_cap.tcp_v4_rcv.ip_local_deliver_finish.ip_local_deliver.ip_rcv_finish
2.67 ± 0% -15.5% 2.26 ± 2% perf-profile.calltrace.cycles-pp.sk_wait_data.tcp_recvmsg.inet_recvmsg.sock_recvmsg.SYSC_recvfrom
15.30 ± 0% -18.1% 12.53 ± 1% perf-profile.calltrace.cycles-pp.sock_recvmsg.SYSC_recvfrom.sys_recvfrom.entry_SYSCALL_64_fastpath
15.96 ± 0% +19.6% 19.08 ± 0% perf-profile.calltrace.cycles-pp.sock_sendmsg.SYSC_sendto.sys_sendto.entry_SYSCALL_64_fastpath
15.77 ± 0% -17.4% 13.02 ± 1% perf-profile.calltrace.cycles-pp.sys_recvfrom.entry_SYSCALL_64_fastpath
16.29 ± 0% +19.2% 19.41 ± 0% perf-profile.calltrace.cycles-pp.sys_sendto.entry_SYSCALL_64_fastpath
1.11 ± 2% -100.0% 0.00 ± -1% perf-profile.calltrace.cycles-pp.tcp_ack.tcp_rcv_established.tcp_v4_do_rcv.tcp_v4_rcv.ip_local_deliver_finish
1.81 ± 2% +6.9% 1.93 ± 4% perf-profile.calltrace.cycles-pp.tcp_ack.tcp_rcv_state_process.tcp_v4_do_rcv.__release_sock.release_sock
1.86 ± 1% +34.3% 2.50 ± 1% perf-profile.calltrace.cycles-pp.tcp_ack.tcp_rcv_state_process.tcp_v4_do_rcv.tcp_v4_rcv.ip_local_deliver_finish
0.26 ±173% +211.4% 0.82 ± 37% perf-profile.calltrace.cycles-pp.tcp_clean_rtx_queue.tcp_ack.tcp_rcv_state_process.tcp_v4_do_rcv.__release_sock
0.55 ± 3% +106.3% 1.14 ± 1% perf-profile.calltrace.cycles-pp.tcp_clean_rtx_queue.tcp_ack.tcp_rcv_state_process.tcp_v4_do_rcv.tcp_v4_rcv
1.12 ± 2% -19.6% 0.90 ± 6% perf-profile.calltrace.cycles-pp.tcp_finish_connect.tcp_rcv_state_process.tcp_v4_do_rcv.__release_sock.release_sock
2.58 ± 2% -26.3% 1.90 ± 4% perf-profile.calltrace.cycles-pp.tcp_prequeue.tcp_v4_rcv.ip_local_deliver_finish.ip_local_deliver.ip_rcv_finish
10.67 ± 0% -24.3% 8.08 ± 2% perf-profile.calltrace.cycles-pp.tcp_prequeue_process.tcp_recvmsg.inet_recvmsg.sock_recvmsg.SYSC_recvfrom
12.42 ± 0% +16.7% 14.49 ± 1% perf-profile.calltrace.cycles-pp.tcp_push.tcp_sendmsg.inet_sendmsg.sock_sendmsg.SYSC_sendto
0.57 ± 1% +141.7% 1.39 ± 3% perf-profile.calltrace.cycles-pp.tcp_rcv_established.tcp_v4_do_rcv.__release_sock.release_sock.tcp_sendmsg
8.66 ± 0% -11.5% 7.67 ± 1% perf-profile.calltrace.cycles-pp.tcp_rcv_established.tcp_v4_do_rcv.tcp_prequeue_process.tcp_recvmsg.inet_recvmsg
3.09 ± 1% -23.5% 2.36 ± 4% perf-profile.calltrace.cycles-pp.tcp_rcv_established.tcp_v4_do_rcv.tcp_v4_rcv.ip_local_deliver_finish.ip_local_deliver
1.05 ± 2% +9.1% 1.14 ± 3% perf-profile.calltrace.cycles-pp.tcp_rcv_state_process.tcp_child_process.tcp_v4_rcv.ip_local_deliver_finish.ip_local_deliver
2.23 ± 3% +9.5% 2.44 ± 1% perf-profile.calltrace.cycles-pp.tcp_rcv_state_process.tcp_v4_do_rcv.__release_sock.release_sock.tcp_close
10.91 ± 1% +9.6% 11.96 ± 1% perf-profile.calltrace.cycles-pp.tcp_rcv_state_process.tcp_v4_do_rcv.tcp_v4_rcv.ip_local_deliver_finish.ip_local_deliver
14.75 ± 0% -19.2% 11.91 ± 1% perf-profile.calltrace.cycles-pp.tcp_recvmsg.inet_recvmsg.sock_recvmsg.SYSC_recvfrom.sys_recvfrom
8.79 ± 0% -30.0% 6.16 ± 2% perf-profile.calltrace.cycles-pp.tcp_send_ack.__tcp_ack_snd_check.tcp_rcv_established.tcp_v4_do_rcv.tcp_prequeue_process
0.78 ± 1% +110.2% 1.65 ± 4% perf-profile.calltrace.cycles-pp.tcp_send_ack.__tcp_ack_snd_check.tcp_rcv_established.tcp_v4_do_rcv.tcp_v4_rcv
15.33 ± 0% +20.3% 18.45 ± 0% perf-profile.calltrace.cycles-pp.tcp_sendmsg.inet_sendmsg.sock_sendmsg.SYSC_sendto.sys_sendto
8.73 ± 0% -20.4% 6.95 ± 1% perf-profile.calltrace.cycles-pp.tcp_transmit_skb.tcp_send_ack.__tcp_ack_snd_check.tcp_rcv_established.tcp_v4_do_rcv
10.37 ± 0% +11.4% 11.56 ± 1% perf-profile.calltrace.cycles-pp.tcp_transmit_skb.tcp_write_xmit.__tcp_push_pending_frames.tcp_push.tcp_sendmsg
2.29 ± 3% +10.4% 2.53 ± 1% perf-profile.calltrace.cycles-pp.tcp_v4_do_rcv.__release_sock.release_sock.tcp_close.inet_release
0.61 ± 2% +140.6% 1.47 ± 3% perf-profile.calltrace.cycles-pp.tcp_v4_do_rcv.__release_sock.release_sock.tcp_sendmsg.inet_sendmsg
7.73 ± 0% -23.5% 5.91 ± 2% perf-profile.calltrace.cycles-pp.tcp_v4_do_rcv.tcp_prequeue_process.tcp_recvmsg.inet_recvmsg.sock_recvmsg
2.06 ± 1% +7.3% 2.21 ± 3% perf-profile.calltrace.cycles-pp.tcp_v4_syn_recv_sock.tcp_check_req.tcp_v4_rcv.ip_local_deliver_finish.ip_local_deliver
12.26 ± 0% +16.7% 14.31 ± 1% perf-profile.calltrace.cycles-pp.tcp_write_xmit.__tcp_push_pending_frames.tcp_push.tcp_sendmsg.inet_sendmsg
3.04 ± 1% -12.7% 2.65 ± 0% perf-profile.calltrace.cycles-pp.try_to_wake_up.default_wake_function.autoremove_wake_function.__wake_up_common.__wake_up_sync_key
2.36 ± 3% -14.1% 2.02 ± 2% perf-profile.calltrace.cycles-pp.ttwu_do_activate.try_to_wake_up.default_wake_function.autoremove_wake_function.__wake_up_common
15.69 ± 0% -17.4% 12.96 ± 1% perf-profile.children.cycles-pp.SYSC_recvfrom
16.25 ± 0% +19.3% 19.38 ± 1% perf-profile.children.cycles-pp.SYSC_sendto
1.66 ± 4% +16.7% 1.93 ± 1% perf-profile.children.cycles-pp.__kfree_skb
15.12 ± 1% +10.6% 16.72 ± 0% perf-profile.children.cycles-pp.__release_sock
5.51 ± 1% -33.1% 3.69 ± 1% perf-profile.children.cycles-pp.__schedule
10.11 ± 0% -18.0% 8.29 ± 2% perf-profile.children.cycles-pp.__tcp_ack_snd_check
3.83 ± 1% -18.0% 3.14 ± 1% perf-profile.children.cycles-pp.__wake_up_common
3.63 ± 2% -12.2% 3.18 ± 1% perf-profile.children.cycles-pp.__wake_up_sync_key
1.86 ± 3% -11.7% 1.64 ± 1% perf-profile.children.cycles-pp.activate_task
3.66 ± 1% -20.5% 2.91 ± 1% perf-profile.children.cycles-pp.autoremove_wake_function
3.56 ± 1% -18.0% 2.92 ± 0% perf-profile.children.cycles-pp.default_wake_function
1.21 ± 5% -10.4% 1.08 ± 1% perf-profile.children.cycles-pp.enqueue_entity
1.64 ± 2% -10.8% 1.46 ± 2% perf-profile.children.cycles-pp.enqueue_task_fair
14.98 ± 0% -18.8% 12.17 ± 1% perf-profile.children.cycles-pp.inet_recvmsg
15.72 ± 0% +20.0% 18.87 ± 0% perf-profile.children.cycles-pp.inet_sendmsg
2.03 ± 2% -50.4% 1.01 ± 5% perf-profile.children.cycles-pp.pick_next_task_fair
15.94 ± 1% +10.2% 17.57 ± 1% perf-profile.children.cycles-pp.release_sock
5.86 ± 1% -33.6% 3.89 ± 0% perf-profile.children.cycles-pp.schedule
5.25 ± 1% -27.3% 3.81 ± 0% perf-profile.children.cycles-pp.schedule_timeout
2.68 ± 0% -15.5% 2.27 ± 2% perf-profile.children.cycles-pp.sk_wait_data
1.35 ± 0% +14.6% 1.55 ± 2% perf-profile.children.cycles-pp.skb_release_all
15.32 ± 0% -18.1% 12.54 ± 1% perf-profile.children.cycles-pp.sock_recvmsg
15.97 ± 0% +19.6% 19.10 ± 0% perf-profile.children.cycles-pp.sock_sendmsg
15.79 ± 0% -17.3% 13.05 ± 1% perf-profile.children.cycles-pp.sys_recvfrom
16.32 ± 0% +19.2% 19.46 ± 0% perf-profile.children.cycles-pp.sys_sendto
1.14 ± 2% -19.3% 0.92 ± 6% perf-profile.children.cycles-pp.tcp_finish_connect
2.75 ± 1% -24.1% 2.08 ± 4% perf-profile.children.cycles-pp.tcp_prequeue
10.69 ± 0% -24.3% 8.09 ± 2% perf-profile.children.cycles-pp.tcp_prequeue_process
12.50 ± 0% +16.6% 14.58 ± 1% perf-profile.children.cycles-pp.tcp_push
1.82 ± 3% +18.1% 2.15 ± 3% perf-profile.children.cycles-pp.tcp_rearm_rto
14.78 ± 0% -19.2% 11.95 ± 1% perf-profile.children.cycles-pp.tcp_recvmsg
15.36 ± 0% +20.3% 18.48 ± 0% perf-profile.children.cycles-pp.tcp_sendmsg
2.07 ± 1% +7.2% 2.22 ± 3% perf-profile.children.cycles-pp.tcp_v4_syn_recv_sock
3.43 ± 2% -17.5% 2.83 ± 0% perf-profile.children.cycles-pp.try_to_wake_up
2.46 ± 3% -11.6% 2.17 ± 1% perf-profile.children.cycles-pp.ttwu_do_activate
1.34 ± 3% +8.4% 1.45 ± 4% perf-profile.self.cycles-pp.__local_bh_enable_ip
0.81 ± 6% +18.8% 0.96 ± 3% perf-profile.self.cycles-pp.mod_timer
perf-stat.context-switches
6e+07 ++----------------------------------------------------------------+
| **.*.*.**.*.*.*.**.* **.*.* *.*.*.**.*.*.*.**.*.*.**.*.*
5.5e+07 ++ + + + + + |
*.* *.* ** |
| |
5e+07 ++ |
| |
4.5e+07 ++ |
| |
4e+07 ++ |
| |
| |
3.5e+07 ++ |
O O OO O O OO O O O OO O O O OO O O OO O O O |
3e+07 ++----------------------------------------------------------------+
perf-stat.cpu-migrations
11500 ++----O-------------------------------------------------------------+
| O OO |
11000 O+ O O O |
10500 ++O O O O O O O |
| O O O O |
10000 ++ O O O |
9500 ++ O O O |
| |
9000 ++ |
8500 ++ .* |
| .*. .*. .* .*. .*. .*. *.* +|
8000 ++ *.** *.* **.* * *.*.* : *.*.* *.**.* * * *
7500 ++ + + + + : : : |
*.* * *.* *.* |
7000 ++------------------------------------------------------------------+
netperf.Throughput_tps
3050 ++------------------------------O-OO---O-O-O-------------------------+
| O O O O O O OO O O O O O O |
3000 O+O O OO |
2950 ++ |
| .*. .*. .*.|
2900 ++ *.**.*. .*.*.*.*.**.* *.*.** *.*.*.** *.* *.*.**.* *
| : * : : : : |
2850 ++ : : : : : |
| : : : : : |
2800 ++ : : : : : |
2750 ++ : : : : : |
| : : : : : |
2700 ++: : : : : |
*.* *.* *.* |
2650 ++-------------------------------------------------------------------+
netperf.time.system_time
1800 ++-------------------------------------------------------------------+
| |
1750 O+O O OO O O O O O O OO O O O O O OO O O O O O |
| |
| |
1700 ++ |
| |
1650 ++ |
| |
1600 ++ |
| |
| |
1550 *+*.*.**.*.*.*.*.*.*.**.*.*.*.*.*.**.*.*.*.*.*.**.*.*.*.*.*.*.**.*.*.*
| |
1500 ++-------------------------------------------------------------------+
netperf.time.percent_of_cpu_this_job_got
590 O+O-O-O-OO-O-O-O-O-O-O-O-OO-O-O-O-O-O-O-O-O-OO------------------------+
| |
580 ++ |
570 ++ |
| |
560 ++ |
| |
550 ++ |
| |
540 ++ |
530 ++ |
| |
520 ++ .*.*. .*.*. |
*.*.*.*.** * *.*.**.*.*.*.*.*.*.*.*.**.*.*.*.*.*.*.*.**.*.*.*.*
510 ++--------------------------------------------------------------------+
netperf.time.voluntary_context_switches
1.5e+07 ++----------------------------------------------------------------+
O O OO O O OO O O O OO O O O OO O O OO O O O |
1.4e+07 ++ |
1.3e+07 ++ |
| |
1.2e+07 ++ |
1.1e+07 ++ |
| |
1e+07 ++ |
9e+06 ++ |
| |
8e+06 ++ |
7e+06 ++ .**.*.*.**.*.*.*.**.*. .**.*.*. .*.*.*.**.*.*.*.**.*.*.**.*.*
*.* *.* ** |
6e+06 ++----------------------------------------------------------------+
netperf.time.involuntary_context_switches
2.5e+07 ++----------------------------------------------------------------+
| |
| .**.*.*.**.*.*.*.**.*. .**.*.*. .*.*.*.**.*.*.*.**.*.*.**.*.*
2e+07 *+* *.* ** |
| |
| |
1.5e+07 ++ |
| |
1e+07 ++ |
| |
| |
5e+06 ++ |
| |
| |
0 O+O-OO-O-O-OO-O-O-O-OO-O-O-O-OO-O-O-OO-O-O-O----------------------+
[*] bisect-good sample
[O] bisect-bad sample
Thanks,
Xiaolong
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