From: jimmy bahuleyan <knight.camelot@gmail.com>
To: Mike Galbraith <efault@gmx.de>
Cc: Radoslaw Szkodzinski <astralstorm@gmail.com>,
Kasper Sandberg <lkml@metanurb.dk>, Al Boldi <a1426z@gawab.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, ck@vds.kolivas.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Nicholas Miell <nmiell@comcast.net>
Subject: Re: [ck] Re: RSDL v0.31
Date: Sun, 18 Mar 2007 13:50:01 +0530 [thread overview]
Message-ID: <45FCF631.9020200@gmail.com> (raw)
In-Reply-To: <1174203482.8855.8.camel@Homer.simpson.net>
Mike Galbraith wrote:
> On Sun, 2007-03-18 at 08:22 +0100, Radoslaw Szkodzinski wrote:
>
>> I'd recon KDE regresses because of kioslaves waiting on a pipe
>> (communication with the app they're doing IO for) and then expiring.
>> That's why splitting IO from an app isn't exactly smart. It should at
>> least be ran in an another thread.
>
> Hm. Sounds rather a lot like the...
> X sucks, fix X and RSDL will rock your world. RSDL is perfect.
> ...that I've been getting.
>
> -Mike
maybe if it is possible to classify program behaviors that cause RSDL to
do bad (relatively) or the mainline scheduler to jitter, we could try
modifying the existing heuristics to get a better default scheduler.
of course, it wouldn't be able to cater to all the workloads and would
meet everybody's definition of optimal. but getting close to optimal in
most cases should be a good enough goal for linux's default sched!
i've been following this thread, and there's been many instances of
'RSDL is gr8' and 'RSDL regresses'.
maybe RSDL isn't the answer. maybe the current mainline sched isn't
either. but RSDL definitely has done *something* right.
What i think is needed is 'why this works here' and 'how to get this
behavior to work with some other possibly conflicting but important
workloads'.
(just my 2c :-)
-jb
--
I am professionally trained in computer science, which is to say
(in all seriousness) that I am extremely poorly educated.
-- Joseph Weizenbaum
next prev parent reply other threads:[~2007-03-18 8:20 UTC|newest]
Thread overview: 197+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-04 20:35 [ANNOUNCE] RSDL completely fair starvation free interactive cpu scheduler Al Boldi
2007-03-04 21:49 ` Con Kolivas
[not found] ` <45EB45F7.3050208@simon.arlott.org.uk>
2007-03-04 22:27 ` Con Kolivas
2007-03-05 18:29 ` Simon Arlott
2007-03-05 21:36 ` Con Kolivas
2007-03-04 23:13 ` Willy Tarreau
2007-03-04 23:58 ` Con Kolivas
2007-03-05 0:10 ` [ck] " jos poortvliet
2007-03-05 1:09 ` Gene Heskett
[not found] ` <200703050834.45712.a1426z@gawab.com>
[not found] ` <20070305060732.GQ30401@nysv.org>
2007-03-05 11:59 ` [ck] " Al Boldi
2007-03-05 12:29 ` Con Kolivas
[not found] ` <200703052123.01095.a1426z@gawab.com>
2007-03-05 22:10 ` Con Kolivas
2007-03-06 8:42 ` Xavier Bestel
2007-03-06 15:15 ` Al Boldi
2007-03-11 18:11 ` Al Boldi
2007-03-11 21:52 ` Con Kolivas
2007-03-11 22:12 ` Con Kolivas
2007-03-12 4:42 ` Al Boldi
2007-03-12 4:53 ` Con Kolivas
2007-03-12 11:26 ` Al Boldi
2007-03-12 12:52 ` Con Kolivas
2007-03-12 14:14 ` Al Boldi
2007-03-12 14:58 ` [ck] " jos poortvliet
2007-03-12 16:37 ` michael chang
2007-03-12 17:41 ` Al Boldi
2007-03-12 18:05 ` Con Kolivas
2007-03-12 18:47 ` [ck] " jos poortvliet
2007-03-12 18:58 ` Antonio Vargas
2007-03-19 10:47 ` Helge Hafting
2007-03-18 1:30 ` Bill Davidsen
2007-03-18 10:50 ` [ck] " jos poortvliet
2007-03-13 15:31 ` [PATCH] [RSDL-0.30] sched: rsdl improve latencies with differential nice Con Kolivas
2007-03-13 16:03 ` [PATCH] [RSDL-0.30] sched: rsdl improve latencies with differential nice -1 Con Kolivas
2007-03-13 16:08 ` Con Kolivas
2007-03-13 20:58 ` Con Kolivas
2007-03-13 23:08 ` RSDL development plans Con Kolivas
2007-03-16 12:25 ` Con Kolivas
2007-03-16 13:40 ` RSDL v0.31 Con Kolivas
2007-03-16 15:34 ` Mike Galbraith
2007-03-16 21:13 ` Con Kolivas
2007-03-16 22:30 ` Mike Galbraith
2007-03-16 23:05 ` [ck] " Dirk Schoebel
2007-03-17 4:24 ` Nicholas Miell
2007-03-17 5:56 ` Mike Galbraith
2007-03-17 6:08 ` Mike Galbraith
2007-03-17 13:56 ` Ed Tomlinson
2007-03-18 19:37 ` Lee Revell
2007-03-18 19:55 ` Mike Galbraith
2007-03-18 22:45 ` Szonyi Calin
2007-03-19 2:27 ` David Schwartz
2007-03-19 6:21 ` Mike Galbraith
2007-03-19 6:59 ` Willy Tarreau
2007-03-17 6:26 ` Nicholas Miell
2007-03-17 7:11 ` Mike Galbraith
2007-03-17 7:25 ` William Lee Irwin III
2007-03-17 7:29 ` Nicholas Miell
2007-03-17 11:48 ` Gene Heskett
2007-03-17 7:45 ` Ingo Molnar
2007-03-17 7:44 ` David Lang
2007-03-17 8:46 ` Mike Galbraith
2007-03-17 14:09 ` [ck] " Mark Glines
2007-03-17 14:33 ` Mike Galbraith
2007-03-17 14:54 ` Mark Glines
2007-03-17 14:58 ` Mike Galbraith
2007-03-17 8:23 ` Nicholas Miell
2007-03-17 9:42 ` [patch] CFS scheduler: Completely Fair Scheduler / CONFIG_SCHED_FAIR Ingo Molnar
2007-03-17 8:41 ` RSDL v0.31 Serge Belyshev
2007-03-17 9:48 ` Con Kolivas
2007-03-17 9:58 ` Mike Galbraith
2007-03-17 10:49 ` Mike Galbraith
2007-03-17 12:05 ` Gene Heskett
2007-03-17 13:36 ` Mike Galbraith
2007-03-17 17:03 ` Gene Heskett
2007-03-17 17:37 ` Mike Galbraith
2007-03-17 18:23 ` [ck] " Kacper Wysocki
2007-03-17 18:45 ` Mike Galbraith
2007-03-17 13:58 ` michael chang
2007-03-17 20:55 ` Al Boldi
2007-03-18 6:17 ` Mike Galbraith
2007-03-18 6:47 ` Kasper Sandberg
2007-03-18 7:08 ` Mike Galbraith
2007-03-18 7:22 ` [ck] " Radoslaw Szkodzinski
2007-03-18 7:38 ` Mike Galbraith
2007-03-18 8:04 ` Mike Galbraith
2007-03-18 8:20 ` jimmy bahuleyan [this message]
2007-03-18 8:34 ` Mike Galbraith
2007-03-18 9:57 ` Kasper Sandberg
2007-03-18 13:57 ` Avuton Olrich
2007-03-19 20:47 ` Bill Davidsen
2007-03-20 10:19 ` jos poortvliet
2007-03-21 8:58 ` Kasper Sandberg
2007-03-18 15:44 ` Radoslaw Szkodzinski
2007-03-18 16:09 ` jos poortvliet
2007-03-19 16:07 ` Mark Lord
2007-03-19 16:26 ` Xavier Bestel
2007-03-19 16:36 ` Mark Lord
2007-03-19 16:43 ` Xavier Bestel
2007-03-20 3:11 ` Linus Torvalds
2007-03-20 6:11 ` Willy Tarreau
2007-03-20 8:03 ` Mike Galbraith
2007-03-21 14:57 ` Mike Galbraith
2007-03-21 16:02 ` Peter Zijlstra
2007-03-21 17:06 ` Mike Galbraith
2007-03-22 7:07 ` Mike Galbraith
2007-03-22 9:18 ` Ingo Molnar
2007-03-22 9:34 ` Mike Galbraith
2007-03-22 9:41 ` Mike Galbraith
2007-03-22 22:03 ` Con Kolivas
2007-03-22 22:50 ` Con Kolivas
2007-03-23 4:39 ` Mike Galbraith
2007-03-23 5:59 ` Con Kolivas
2007-03-23 6:11 ` Mike Galbraith
2007-03-23 12:17 ` Mike Galbraith
[not found] ` <20070321161147.54c7a727@localhost>
2007-03-21 17:07 ` Mike Galbraith
2007-03-22 4:49 ` Willy Tarreau
2007-03-22 7:14 ` Mike Galbraith
2007-03-20 9:03 ` Xavier Bestel
2007-03-20 12:31 ` Artur Skawina
2007-03-20 19:16 ` Artur Skawina
2007-03-21 7:50 ` Ingo Molnar
2007-03-21 10:43 ` David Schwartz
2007-03-28 23:37 ` Bill Davidsen
2007-03-29 7:10 ` David Schwartz
2007-03-29 7:34 ` Nick Piggin
2007-03-20 15:31 ` Linus Torvalds
2007-03-20 18:08 ` Al Boldi
2007-03-21 8:22 ` Keith Duthie
2007-03-28 23:43 ` Bill Davidsen
2007-03-20 10:26 ` [ck] " jos poortvliet
2007-03-20 13:22 ` Mark Lord
2007-03-20 15:16 ` Ray Lee
2007-03-20 15:20 ` Mark Lord
2007-03-21 8:55 ` Kasper Sandberg
2007-03-19 20:53 ` Al Boldi
2007-03-20 19:50 ` Artur Skawina
2007-03-21 4:15 ` Al Boldi
2007-03-21 17:24 ` Artur Skawina
2007-03-19 16:03 ` Mark Lord
2007-03-17 11:49 ` is RSDL an "unfair" scheduler too? Ingo Molnar
2007-03-17 12:02 ` Con Kolivas
2007-03-17 12:23 ` [ck] " jos poortvliet
2007-03-17 17:31 ` David Schwartz
2007-03-17 12:28 ` Ingo Molnar
2007-03-17 12:43 ` Con Kolivas
2007-03-17 16:34 ` Ingo Molnar
2007-03-18 3:23 ` Bill Davidsen
2007-03-18 2:13 ` Bill Davidsen
2007-03-18 3:20 ` Kasper Sandberg
2007-03-18 5:37 ` Mike Galbraith
2007-03-18 10:58 ` [ck] " jos poortvliet
2007-03-17 12:15 ` jos poortvliet
2007-03-17 20:41 ` Avi Kivity
2007-03-18 1:25 ` William Lee Irwin III
2007-03-18 1:32 ` Linus Torvalds
2007-03-18 5:24 ` Willy Tarreau
2007-03-18 5:55 ` Avi Kivity
2007-03-19 2:27 ` David Schwartz
2007-03-19 13:27 ` Radoslaw Szkodzinski
2007-03-19 18:30 ` David Lang
2007-03-19 15:25 ` Avi Kivity
2007-03-19 16:06 ` Helge Hafting
2007-03-19 16:37 ` Avi Kivity
2007-03-18 6:09 ` Bill Huey
2007-03-18 6:37 ` Mike Galbraith
2007-03-18 7:35 ` Bill Huey
2007-03-19 21:14 ` Bill Davidsen
2007-03-18 6:26 ` Mike Galbraith
2007-03-18 6:54 ` [ck] " Radoslaw Szkodzinski
2007-03-18 7:58 ` Willy Tarreau
2007-03-18 8:45 ` Avi Kivity
2007-03-18 5:00 ` Avi Kivity
2007-03-17 15:13 ` RSDL v0.31 Mark Hahn
2007-03-17 17:22 ` Stephen Clark
2007-03-19 15:06 ` Chris Friesen
2007-03-17 7:56 ` Ingo Molnar
2007-03-17 11:07 ` [ck] " jos poortvliet
2007-03-17 12:44 ` Ingo Molnar
2007-03-17 13:44 ` jos poortvliet
2007-03-17 14:04 ` [ck] " Ed Tomlinson
2007-03-17 14:32 ` Rik van Riel
2007-03-17 14:43 ` Mike Galbraith
2007-03-17 15:39 ` Ingo Molnar
2007-03-16 17:12 ` AshMilsted
2007-03-16 17:41 ` Gabriel C
2007-03-16 21:55 ` Al Boldi
2007-03-17 2:51 ` Con Kolivas
2007-03-17 4:40 ` Al Boldi
2007-03-17 4:57 ` Con Kolivas
2007-03-17 5:15 ` Gene Heskett
2007-03-17 13:50 ` Ed Tomlinson
2007-03-17 16:12 ` Al Boldi
2007-03-16 13:42 ` RSDL development plans Mike Galbraith
2007-03-16 13:59 ` Con Kolivas
2007-03-16 14:07 ` Mike Galbraith
2007-03-14 9:13 ` [PATCH] [RSDL-0.30] sched: rsdl improve latencies with differential nice Mike Galbraith
2007-03-14 9:25 ` Con Kolivas
2007-03-14 9:42 ` Mike Galbraith
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