From: Al Boldi <a1426z@gawab.com>
To: Con Kolivas <kernel@kolivas.org>
Cc: ck list <ck@vds.kolivas.org>, linux-kernel@vger.kernel.org
Subject: Re: [ANNOUNCE] RSDL completely fair starvation free interactive cpu scheduler
Date: Mon, 12 Mar 2007 14:26:00 +0300 [thread overview]
Message-ID: <200703121426.00854.a1426z@gawab.com> (raw)
In-Reply-To: <200703121553.30462.kernel@kolivas.org>
Con Kolivas wrote:
> On Monday 12 March 2007 15:42, Al Boldi wrote:
> > Con Kolivas wrote:
> > > On Monday 12 March 2007 08:52, Con Kolivas wrote:
> > > > And thank you! I think I know what's going on now. I think each
> > > > rotation is followed by another rotation before the higher priority
> > > > task is getting a look in in schedule() to even get quota and add it
> > > > to the runqueue quota. I'll try a simple change to see if that
> > > > helps. Patch coming up shortly.
> > >
> > > Can you try the following patch and see if it helps. There's also one
> > > minor preemption logic fix in there that I'm planning on including.
> > > Thanks!
> >
> > Applied on top of v0.28 mainline, and there is no difference.
> >
> > What's it look like on your machine?
>
> The higher priority one always get 6-7ms whereas the lower priority one
> runs 6-7ms and then one larger perfectly bound expiration amount.
> Basically exactly as I'd expect. The higher priority task gets precisely
> RR_INTERVAL maximum latency whereas the lower priority task gets
> RR_INTERVAL min and full expiration (according to the virtual deadline) as
> a maximum. That's exactly how I intend it to work. Yes I realise that the
> max latency ends up being longer intermittently on the niced task but
> that's -in my opinion- perfectly fine as a compromise to ensure the nice 0
> one always gets low latency.
I think, it should be possible to spread this max expiration latency across
the rotation, should it not?
Thanks!
--
Al
next prev parent reply other threads:[~2007-03-12 11:23 UTC|newest]
Thread overview: 247+ 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 [this message]
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
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
-- strict thread matches above, loose matches on Subject: below --
2007-03-11 22:29 [ANNOUNCE] RSDL completely fair starvation free interactive cpu scheduler bert hubert
2007-03-11 22:57 ` Con Kolivas
2007-03-08 14:27 Tim Tassonis
2007-03-06 4:57 Shawn Starr
2007-03-05 9:45 Nicolas Mailhot
2007-03-05 9:53 ` Gene Heskett
2007-03-05 10:00 ` Nicolas Mailhot
2007-03-05 15:22 ` Paolo Ciarrocchi
2007-03-05 18:37 ` Gene Heskett
2007-03-05 18:20 ` Lee Revell
2007-03-05 19:19 ` Gene Heskett
2007-03-05 22:40 ` Andrew Morton
2007-03-05 23:19 ` Gene Heskett
2007-03-06 2:23 ` Ed Tomlinson
2007-03-06 2:54 ` Linus Torvalds
2007-03-06 3:36 ` Gene Heskett
2007-03-09 4:04 ` Bill Davidsen
2007-03-09 6:31 ` Linus Torvalds
2007-03-09 7:04 ` Bill Huey
2007-03-09 10:54 ` William Lee Irwin III
2007-03-09 14:54 ` Bill Davidsen
2007-03-09 18:11 ` Linus Torvalds
2007-03-06 17:50 ` Bill Davidsen
2007-03-06 20:06 ` Con Kolivas
2007-03-09 4:21 ` Bill Davidsen
2007-03-04 7:00 Con Kolivas
2007-03-04 7:45 ` [ck] " Con Kolivas
2007-03-04 14:04 ` Con Kolivas
2007-03-04 11:08 ` Gene Heskett
2007-03-04 11:47 ` Con Kolivas
2007-03-04 12:24 ` Gene Heskett
2007-03-04 12:46 ` Con Kolivas
2007-03-04 13:25 ` Gene Heskett
2007-03-04 13:49 ` Con Kolivas
2007-03-04 14:11 ` Gene Heskett
2007-03-05 2:31 ` Zwane Mwaikambo
2007-03-05 3:16 ` Gene Heskett
2007-03-04 14:36 ` Willy Tarreau
2007-03-04 16:08 ` [ck] " jos poortvliet
2007-03-05 23:05 ` Bill Davidsen
2007-03-06 0:18 ` Con Kolivas
2007-03-06 4:41 ` Willy Tarreau
2007-03-06 5:39 ` Nicholas Miell
2007-03-06 19:04 ` jos poortvliet
2007-03-06 21:37 ` Bill Davidsen
2007-03-06 21:54 ` Willy Tarreau
2007-03-05 21:52 ` Con Kolivas
2007-03-08 8:53 ` Ingo Molnar
2007-03-08 10:07 ` Con Kolivas
2007-03-08 20:25 ` Fabio Comolli
2007-03-08 20:57 ` Con Kolivas
2007-03-08 21:31 ` Fabio Comolli
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