From: Mike Galbraith <efault@gmx.de>
To: Wiktor Wodecki <wodecki@gmx.net>
Cc: Nick Piggin <piggin@cyberone.com.au>,
Davide Libenzi <davidel@xmailserver.org>,
Con Kolivas <kernel@kolivas.org>,
linux kernel mailing list <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>,
Felipe Alfaro Solana <felipe_alfaro@linuxmail.org>,
Zwane Mwaikambo <zwane@arm.linux.org.uk>
Subject: Re: [PATCH] O6int for interactivity
Date: Fri, 18 Jul 2003 17:46:01 +0200 [thread overview]
Message-ID: <5.2.1.1.2.20030718174433.01b12878@pop.gmx.net> (raw)
In-Reply-To: <20030718103105.GE622@gmx.de>
[-- Attachment #1: Type: text/plain, Size: 918 bytes --]
At 12:31 PM 7/18/2003 +0200, Wiktor Wodecki wrote:
>On Fri, Jul 18, 2003 at 12:18:33PM +0200, Mike Galbraith wrote:
> > That _might_ (add salt) be priorities of kernel threads dropping too low.
> >
> > I'm also seeing occasional total stalls under heavy I/O in the order of
> > 10-12 seconds (even the disk stops). I have no idea if that's
> something in
> > mm or the scheduler changes though, as I've yet to do any isolation and/or
> > tinkering. All I know at this point is that I haven't seen it in stock
> yet.
>
>I've seen this too while doing a huge nfs transfer from a 2.6 machine to
>a 2.4 machine (sparc32). Thought it'd be something with the nfs changes
>which were recently, might be the scheduler, tho. Ah, and it is fully
>reproducable.
Telling to not mess with my kernel threads seems to have fixed it here...
no stalls during the whole contest run. New contest numbers attached.
-Mike
[-- Attachment #2: contest.txt --]
[-- Type: text/plain, Size: 3778 bytes --]
no_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.69 1 153 94.8 0.0 0.0 1.00
2.5.70 1 153 94.1 0.0 0.0 1.00
2.6.0-test1 1 153 94.1 0.0 0.0 1.00
2.6.0-test1-mm1 1 152 94.7 0.0 0.0 1.00
2.6.0-test1-mm1X 1 153 94.8 0.0 0.0 1.00
cacherun:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.69 1 146 98.6 0.0 0.0 0.95
2.5.70 1 146 98.6 0.0 0.0 0.95
2.6.0-test1 1 146 98.6 0.0 0.0 0.95
2.6.0-test1-mm1 1 146 98.6 0.0 0.0 0.96
2.6.0-test1-mm1X 1 146 98.6 0.0 0.0 0.95
process_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.69 1 331 43.8 90.0 55.3 2.16
2.5.70 1 199 72.4 27.0 25.5 1.30
2.6.0-test1 1 264 54.5 61.0 44.3 1.73
2.6.0-test1-mm1 1 323 44.9 88.0 54.2 2.12
2.6.0-test1-mm1X 1 268 54.1 62.0 44.8 1.75
ctar_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.69 1 190 77.9 0.0 0.0 1.24
2.5.70 1 186 80.1 0.0 0.0 1.22
2.6.0-test1 1 213 70.4 0.0 0.0 1.39
2.6.0-test1-mm1 1 207 72.5 0.0 0.0 1.36
2.6.0-test1-mm1X 1 213 70.4 0.0 0.0 1.39
xtar_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.69 1 196 75.0 0.0 3.1 1.28
2.5.70 1 195 75.9 0.0 3.1 1.27
2.6.0-test1 1 193 76.7 1.0 4.1 1.26
2.6.0-test1-mm1 1 195 75.9 1.0 4.1 1.28
2.6.0-test1-mm1X 1 191 77.5 1.0 4.2 1.25
io_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.69 1 437 34.6 69.1 15.1 2.86
2.5.70 1 401 37.7 72.3 17.4 2.62
2.6.0-test1 1 243 61.3 48.1 17.3 1.59
2.6.0-test1-mm1 1 336 44.9 64.5 17.3 2.21
2.6.0-test1-mm1X 1 317 47.3 63.5 17.7 2.07
io_other:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.69 1 387 38.8 69.3 17.3 2.53
2.5.70 1 422 36.0 75.3 17.1 2.76
2.6.0-test1 1 258 57.8 55.8 19.0 1.69
2.6.0-test1-mm1 1 330 45.5 63.2 17.2 2.17
2.6.0-test1-mm1X 1 302 49.7 59.1 17.2 1.97
read_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.69 1 221 67.0 9.4 3.6 1.44
2.5.70 1 220 67.3 9.4 3.6 1.44
2.6.0-test1 1 200 74.0 9.7 4.0 1.31
2.6.0-test1-mm1 1 190 78.4 9.2 4.2 1.25
2.6.0-test1-mm1X 1 187 79.7 8.4 3.7 1.22
list_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.69 1 203 71.4 99.0 20.2 1.33
2.5.70 1 205 70.7 104.0 20.5 1.34
2.6.0-test1 1 199 72.4 102.0 21.6 1.30
2.6.0-test1-mm1 1 193 75.1 91.0 19.7 1.27
2.6.0-test1-mm1X 1 194 74.7 91.0 19.6 1.27
mem_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.69 1 256 57.8 34.0 1.2 1.67
2.5.70 1 252 58.7 33.0 1.2 1.65
2.6.0-test1 1 309 48.2 75.0 2.3 2.02
2.6.0-test1-mm1 1 277 53.8 38.0 1.4 1.82
2.6.0-test1-mm1X 1 225 65.8 38.0 1.8 1.47
dbench_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.69 1 517 28.8 5.0 35.6 3.38
2.5.70 1 424 35.1 3.0 26.7 2.77
2.6.0-test1 1 347 42.7 4.0 39.5 2.27
2.6.0-test1-mm1 1 377 39.8 4.0 36.9 2.48
2.6.0-test1-mm1X 1 510 29.4 5.0 34.3 3.33
ab_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.5.69 1 300 48.3 46.0 21.7 1.96
2.5.70 1 300 48.0 46.0 22.0 1.96
2.6.0-test1 1 281 51.6 50.0 25.6 1.84
2.6.0-test1-mm1 1 229 63.3 30.0 18.3 1.51
2.6.0-test1-mm1X 1 225 64.4 27.0 18.2 1.47
irman2_load:
Kernel [runs] Time CPU% Loads LCPU% Ratio
2.6.0-test1 1 999 14.5 31.0 0.0 6.53
2.6.0-test1-mm1 1 210 69.0 6.0 0.0 1.38
2.6.0-test1-mm1X 1 210 69.0 6.0 0.0 1.37
next prev parent reply other threads:[~2003-07-18 15:36 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-16 14:30 [PATCH] O6int for interactivity Con Kolivas
2003-07-16 15:22 ` Felipe Alfaro Solana
2003-07-16 19:55 ` Marc-Christian Petersen
2003-07-16 17:08 ` Valdis.Kletnieks
2003-07-16 21:59 ` Wiktor Wodecki
2003-07-16 22:30 ` Con Kolivas
2003-07-16 22:12 ` Davide Libenzi
2003-07-17 0:33 ` Con Kolivas
2003-07-17 0:35 ` Davide Libenzi
2003-07-17 1:12 ` Con Kolivas
2003-07-17 0:48 ` Wade
2003-07-17 1:15 ` Con Kolivas
2003-07-17 1:27 ` Eugene Teo
2003-07-17 3:05 ` Wes Janzen
2003-07-17 9:05 ` Alex Riesen
2003-07-17 9:14 ` Con Kolivas
2003-07-18 7:38 ` Alex Riesen
[not found] ` <Pine.LNX.4.44.0307251628500.26172-300000@localhost.localdomain>
2003-07-25 19:40 ` Alex Riesen
[not found] ` <Pine.LNX.4.55.0307161241280.4787@bigblue.dev.mcafeelabs.co m>
2003-07-18 5:38 ` Mike Galbraith
2003-07-18 6:34 ` Nick Piggin
2003-07-18 10:18 ` Mike Galbraith
2003-07-18 10:31 ` Wiktor Wodecki
2003-07-18 10:43 ` Con Kolivas
2003-07-18 11:34 ` Wiktor Wodecki
2003-07-18 11:38 ` Nick Piggin
2003-07-19 10:59 ` Wiktor Wodecki
2003-07-18 15:46 ` Mike Galbraith [this message]
2003-07-18 16:52 ` Davide Libenzi
2003-07-18 17:05 ` Davide Libenzi
2003-07-18 17:39 ` Valdis.Kletnieks
2003-07-18 19:31 ` Davide Libenzi
[not found] ` <Pine.LNX.4.55.0307181038450.5608@bigblue.dev.mcafeelabs.co m>
2003-07-18 20:31 ` Mike Galbraith
2003-07-18 20:38 ` Davide Libenzi
[not found] ` <Pine.LNX.4.55.0307181333520.5608@bigblue.dev.mcafeelabs.co m>
2003-07-19 17:04 ` Mike Galbraith
2003-07-21 0:21 ` Davide Libenzi
[not found] ` <Pine.LNX.4.55.0307201715130.3548@bigblue.dev.mcafeelabs.co m>
2003-07-21 5:36 ` Mike Galbraith
2003-07-21 12:39 ` [NOTAPATCH] " Mike Galbraith
2003-07-21 17:13 ` Mike Galbraith
2003-07-18 14:24 ` Con Kolivas
2003-07-18 15:50 ` Mike Galbraith
2003-07-18 13:46 ` Davide Libenzi
[not found] ` <Pine.LNX.4.55.0307180630450.5077@bigblue.dev.mcafeelabs.co m>
2003-07-18 15:41 ` Mike Galbraith
[not found] ` <Pine.LNX.4.55.0307180951050.5608@bigblue.dev.mcafeelabs.co m>
2003-07-18 18:49 ` Mike Galbraith
2003-07-16 20:20 Shane Shrybman
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=5.2.1.1.2.20030718174433.01b12878@pop.gmx.net \
--to=efault@gmx.de \
--cc=akpm@osdl.org \
--cc=davidel@xmailserver.org \
--cc=felipe_alfaro@linuxmail.org \
--cc=kernel@kolivas.org \
--cc=linux-kernel@vger.kernel.org \
--cc=piggin@cyberone.com.au \
--cc=wodecki@gmx.net \
--cc=zwane@arm.linux.org.uk \
/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.