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Message-ID: <20140404135633.GA22386@localhost>
Date: Fri, 4 Apr 2014 21:56:33 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Daniel Borkmann <dborkman@...hat.com>
Cc: netdev@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
lkp@...org
Subject: [loopback] b17c706987f: +197.7% qperf.sctp.bw
Hi Daniel,
We are glad to find big SCTP performance improvements
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next.git master
commit b17c706987fa6f28bdc1771c8266e7a69e22adcb ("loopback: sctp: add NETIF_F_SCTP_CSUM to device features")
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
3.848e+08 ~ 6% +197.7% 1.146e+09 ~ 5% bens/micro/qperf/600s
3.848e+08 ~ 6% +197.7% 1.146e+09 ~ 5% TOTAL qperf.sctp.bw
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
39.30 ~ 3% +91.0% 75.06 ~11% lkp-a06/micro/qperf/600s
39.30 ~ 3% +91.0% 75.06 ~11% TOTAL qperf.sctp.bw
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
126 ~ 0% -3.2% 122 ~ 0% lkp-a06/micro/qperf/600s
126 ~ 0% -3.2% 122 ~ 0% TOTAL qperf.sctp.latency
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
216270 ~ 2% -46.5% 115740 ~ 4% lkp-a06/micro/qperf/600s
216270 ~ 2% -46.5% 115740 ~ 4% TOTAL cpuidle.C4.usage
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
48722971 ~ 5% +45.1% 70681678 ~ 7% lkp-a06/micro/qperf/600s
48722971 ~ 5% +45.1% 70681678 ~ 7% TOTAL cpuidle.C2.time
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
370655 ~ 2% +46.8% 543952 ~ 7% lkp-a06/micro/qperf/600s
370655 ~ 2% +46.8% 543952 ~ 7% TOTAL cpuidle.C2.usage
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
1.00 ~13% -22.8% 0.77 ~15% lkp-a06/micro/qperf/600s
1.00 ~13% -22.8% 0.77 ~15% TOTAL perf-profile.cpu-cycles.acpi_processor_ffh_cstate_enter.acpi_idle_enter_bm.cpuidle_enter_state.cpuidle_idle_call.arch_cpu_idle
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
18055616 ~ 4% +28.5% 23205101 ~ 2% bens/micro/qperf/600s
18055616 ~ 4% +28.5% 23205101 ~ 2% TOTAL proc-vmstat.numa_local
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
18055616 ~ 4% +28.5% 23205101 ~ 2% bens/micro/qperf/600s
18055616 ~ 4% +28.5% 23205101 ~ 2% TOTAL proc-vmstat.numa_hit
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
51480524 ~ 4% +37.7% 70886229 ~ 2% bens/micro/qperf/600s
15233974 ~ 0% +14.2% 17397187 ~ 3% lkp-a06/micro/qperf/600s
66714498 ~ 3% +32.3% 88283417 ~ 2% TOTAL proc-vmstat.pgalloc_normal
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
2.109e+08 ~ 4% +37.7% 2.904e+08 ~ 2% bens/micro/qperf/600s
24268359 ~ 0% +14.2% 27716949 ~ 3% lkp-a06/micro/qperf/600s
2.352e+08 ~ 3% +35.3% 3.181e+08 ~ 2% TOTAL proc-vmstat.pgfree
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
1.594e+08 ~ 4% +37.7% 2.195e+08 ~ 2% bens/micro/qperf/600s
9034872 ~ 0% +14.2% 10321019 ~ 3% lkp-a06/micro/qperf/600s
1.685e+08 ~ 4% +36.4% 2.299e+08 ~ 2% TOTAL proc-vmstat.pgalloc_dma32
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
51262 ~ 2% -10.0% 46151 ~ 3% lkp-a06/micro/qperf/600s
51262 ~ 2% -10.0% 46151 ~ 3% TOTAL time.involuntary_context_switches
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
65268 ~ 1% +6.8% 69676 ~ 0% bens/micro/qperf/600s
65268 ~ 1% +6.8% 69676 ~ 0% TOTAL vmstat.system.in
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
33939624 ~29% +22.6% 41609509 ~ 0% bens/micro/qperf/600s
4125867 ~ 1% +3.9% 4285302 ~ 0% lkp-a06/micro/qperf/600s
38065492 ~26% +20.6% 45894812 ~ 0% TOTAL time.voluntary_context_switches
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
129649 ~ 1% +6.8% 138432 ~ 0% bens/micro/qperf/600s
13874 ~ 1% +4.8% 14540 ~ 0% lkp-a06/micro/qperf/600s
143523 ~ 1% +6.6% 152972 ~ 0% TOTAL vmstat.system.cs
72f8e06f3ea022d b17c706987fa6f28bdc1771c8
--------------- -------------------------
739 ~19% +12.0% 827 ~ 0% bens/micro/qperf/600s
812 ~ 0% -3.4% 784 ~ 1% lkp-a06/micro/qperf/600s
1551 ~ 9% +3.9% 1612 ~ 0% TOTAL time.system_time
Legend:
~XX% - stddev percent
[+-]XX% - change percent
qperf.sctp.bw
1.3e+09 ++---------------------------------------------------------------+
1.2e+09 ++O O |
| O O O O O O O O |
1.1e+09 O+ O O O O O O O O O O O O |
1e+09 ++ O |
| |
9e+08 ++ |
8e+08 ++ |
7e+08 ++ |
| |
6e+08 ++ |
5e+08 ++ |
| .*.. .*. .*. |
4e+08 *+*.*..*.*.*. .*.*..*.*.*.*.*.*..*.*.*.*.* *.*.* *.*. *.*.*
3e+08 ++-----------*---------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
Thanks,
Fengguang
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