From: Fengguang Wu <fengguang.wu@intel.com>
To: lkp@lists.01.org
Subject: [sched] 373e9ec30ad: -11.2% qperf.udp_bw.send_bw.MB_sec
Date: Fri, 14 Mar 2014 14:20:43 +0800 [thread overview]
Message-ID: <20140314062043.GA28336@localhost> (raw)
In-Reply-To: <20140314061643.GA28194@localhost>
[-- Attachment #1: Type: text/plain, Size: 3029 bytes --]
Alex, we noticed the below changes on
https://github.com/alexshi/power-scheduling.git single-balance
commit 373e9ec30ad1efee2c4ba6b58fc317626e6482d0 ("sched: only do load balance on tick_do_timer_cpu")
test case: lkp-a06/micro/qperf/600s
v3.14-rc6 373e9ec30ad1efee2c4ba6b58
--------------- -------------------------
273 ~ 0% -11.2% 242 ~ 1% TOTAL qperf.udp_bw.send_bw.MB_sec
268 ~ 0% -9.8% 242 ~ 0% TOTAL qperf.tcp_bw.bw.MB_sec
266 ~ 0% -9.8% 240 ~ 1% TOTAL qperf.udp_bw.recv_bw.MB_sec
48281 ~ 2% -81.3% 9035 ~ 1% TOTAL softirqs.SCHED
1359067 ~ 4% -30.7% 942510 ~ 2% TOTAL interrupts.RES
10201776 ~14% -30.1% 7133067 ~10% TOTAL cpuidle.C3.time
52277488 ~ 4% -26.6% 38366608 ~ 6% TOTAL cpuidle.C2.time
28 ~14% -25.3% 21 ~18% TOTAL cpuidle.POLL.usage
1516 ~16% -27.0% 1107 ~22% TOTAL cpuidle.POLL.time
3955 ~ 7% -24.8% 2972 ~14% TOTAL cpuidle.C3.usage
1.10 ~ 9% -17.0% 0.91 ~16% TOTAL perf-profile.cpu-cycles.menu_select.cpuidle_idle_call.arch_cpu_idle.cpu_startup_entry.start_secondary
9066611 ~ 0% -8.3% 8313872 ~ 1% TOTAL proc-vmstat.pgalloc_dma32
24350865 ~ 0% -8.3% 22328921 ~ 1% TOTAL proc-vmstat.pgfree
15285179 ~ 0% -8.3% 14016032 ~ 1% TOTAL proc-vmstat.pgalloc_normal
2961 ~ 3% -19.7% 2378 ~ 3% TOTAL vmstat.system.in
3887389 ~20% +9.7% 4262549 ~ 0% TOTAL time.voluntary_context_switches
14152 ~ 1% +2.2% 14464 ~ 0% TOTAL vmstat.system.cs
Legend:
~XX% - stddev percent
[+-]XX% - change percent
qperf.udp_bw.send_bw.MB_sec
280 ++-------------------------------------------------------------------+
| .*..... |
275 *+...*.....*.... ...*....*.... .. * |
270 ++ *....*.. *. |
| |
265 ++ |
260 ++ |
| |
255 ++ |
250 ++ O |
| |
245 ++ O |
240 O+ O O O O O O O
| O O O |
235 ++----------------------------------------O--------------------------+
[*] bisect-good sample
[O] bisect-bad sample
Thanks,
Fengguang
[-- Attachment #2: reproduce.ksh --]
[-- Type: text/plain, Size: 89 bytes --]
./qperf
./qperf 127.0.0.1 --time 100 tcp_bw tcp_lat udp_bw udp_lat sctp_bw sctp_lat quit
WARNING: multiple messages have this Message-ID (diff)
From: Fengguang Wu <fengguang.wu@intel.com>
To: Alex Shi <alex.shi@linaro.org>
Cc: LKML <linux-kernel@vger.kernel.org>, lkp@01.org
Subject: [sched] 373e9ec30ad: -11.2% qperf.udp_bw.send_bw.MB_sec
Date: Fri, 14 Mar 2014 14:20:43 +0800 [thread overview]
Message-ID: <20140314062043.GA28336@localhost> (raw)
In-Reply-To: <20140314061643.GA28194@localhost>
[-- Attachment #1: Type: text/plain, Size: 2974 bytes --]
Alex, we noticed the below changes on
https://github.com/alexshi/power-scheduling.git single-balance
commit 373e9ec30ad1efee2c4ba6b58fc317626e6482d0 ("sched: only do load balance on tick_do_timer_cpu")
test case: lkp-a06/micro/qperf/600s
v3.14-rc6 373e9ec30ad1efee2c4ba6b58
--------------- -------------------------
273 ~ 0% -11.2% 242 ~ 1% TOTAL qperf.udp_bw.send_bw.MB_sec
268 ~ 0% -9.8% 242 ~ 0% TOTAL qperf.tcp_bw.bw.MB_sec
266 ~ 0% -9.8% 240 ~ 1% TOTAL qperf.udp_bw.recv_bw.MB_sec
48281 ~ 2% -81.3% 9035 ~ 1% TOTAL softirqs.SCHED
1359067 ~ 4% -30.7% 942510 ~ 2% TOTAL interrupts.RES
10201776 ~14% -30.1% 7133067 ~10% TOTAL cpuidle.C3.time
52277488 ~ 4% -26.6% 38366608 ~ 6% TOTAL cpuidle.C2.time
28 ~14% -25.3% 21 ~18% TOTAL cpuidle.POLL.usage
1516 ~16% -27.0% 1107 ~22% TOTAL cpuidle.POLL.time
3955 ~ 7% -24.8% 2972 ~14% TOTAL cpuidle.C3.usage
1.10 ~ 9% -17.0% 0.91 ~16% TOTAL perf-profile.cpu-cycles.menu_select.cpuidle_idle_call.arch_cpu_idle.cpu_startup_entry.start_secondary
9066611 ~ 0% -8.3% 8313872 ~ 1% TOTAL proc-vmstat.pgalloc_dma32
24350865 ~ 0% -8.3% 22328921 ~ 1% TOTAL proc-vmstat.pgfree
15285179 ~ 0% -8.3% 14016032 ~ 1% TOTAL proc-vmstat.pgalloc_normal
2961 ~ 3% -19.7% 2378 ~ 3% TOTAL vmstat.system.in
3887389 ~20% +9.7% 4262549 ~ 0% TOTAL time.voluntary_context_switches
14152 ~ 1% +2.2% 14464 ~ 0% TOTAL vmstat.system.cs
Legend:
~XX% - stddev percent
[+-]XX% - change percent
qperf.udp_bw.send_bw.MB_sec
280 ++-------------------------------------------------------------------+
| .*..... |
275 *+...*.....*.... ...*....*.... .. * |
270 ++ *....*.. *. |
| |
265 ++ |
260 ++ |
| |
255 ++ |
250 ++ O |
| |
245 ++ O |
240 O+ O O O O O O O
| O O O |
235 ++----------------------------------------O--------------------------+
[*] bisect-good sample
[O] bisect-bad sample
Thanks,
Fengguang
[-- Attachment #2: reproduce --]
[-- Type: text/plain, Size: 89 bytes --]
./qperf
./qperf 127.0.0.1 --time 100 tcp_bw tcp_lat udp_bw udp_lat sctp_bw sctp_lat quit
next prev parent reply other threads:[~2014-03-14 6:20 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-03 14:25 [sched/balance] INFO: possible recursive locking detected Fengguang Wu
2014-03-07 1:59 ` Alex Shi
2014-03-13 7:43 ` Alex Shi
2014-03-13 8:53 ` Fengguang Wu
2014-03-13 9:00 ` Alex Shi
2014-03-13 9:06 ` Fengguang Wu
2014-03-14 6:16 ` Fengguang Wu
2014-03-14 6:20 ` Fengguang Wu [this message]
2014-03-14 6:20 ` [sched] 373e9ec30ad: -11.2% qperf.udp_bw.send_bw.MB_sec Fengguang Wu
2014-03-14 6:26 ` [sched/balance] INFO: possible recursive locking detected Alex Shi
2014-03-14 6:48 ` Fengguang Wu
2014-03-14 7:31 ` Alex Shi
2014-03-14 7:40 ` Fengguang Wu
2014-03-14 8:46 ` Alex Shi
2014-03-14 9:06 ` Fengguang Wu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140314062043.GA28336@localhost \
--to=fengguang.wu@intel.com \
--cc=lkp@lists.01.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.