From: Jens Axboe <axboe@suse.de>
To: Pavel Machek <pavel@suse.cz>
Cc: Andrea Arcangeli <andrea@suse.de>,
Con Kolivas <ckolivas@yahoo.com.au>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: stochastic fair queueing in the elevator [Re: [BENCHMARK] 2.4.20-ck3 / aa / rmap with contest]
Date: Tue, 11 Feb 2003 12:01:09 +0100 [thread overview]
Message-ID: <20030211110109.GC930@suse.de> (raw)
In-Reply-To: <20030210164730.GC443@elf.ucw.cz>
On Mon, Feb 10 2003, Pavel Machek wrote:
> Hi!
>
> > The design I proposed is to have multiple I/O queues, where to apply the
> > elevator, and to choose the queue in function of the task->pid that is
> > sumbitting the bh/bio. You'll have to apply an hash to the pid and you
> > probably want a perturbation timer that will change the hash function
> > every 30 sec or so. Plus I want a special queue for everything
> > asynchronoys. So that the asynchronoys queue will be elevated and
>
> What about adding speicial queue (queues?) for niced things? That way
> nice -20 job would not interfere with normal processes, not even for
> I/O.
Once you have per-process queues, it's fairly trivial to add stuff like
that.
--
Jens Axboe
prev parent reply other threads:[~2003-02-11 10:54 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-09 13:30 [BENCHMARK] 2.4.20-ck3 / aa / rmap with contest Con Kolivas
2003-02-09 14:46 ` stochastic fair queueing in the elevator [Re: [BENCHMARK] 2.4.20-ck3 / aa / rmap with contest] Andrea Arcangeli
2003-02-10 3:13 ` Nick Piggin
2003-02-10 3:52 ` Rik van Riel
2003-02-10 4:44 ` Nick Piggin
2003-02-10 5:15 ` usbaudio.c 2.5.59 John
2003-02-10 7:26 ` stochastic fair queueing in the elevator [Re: [BENCHMARK] 2.4.20-ck3 / aa / rmap with contest] Andrea Arcangeli
2003-02-10 7:43 ` Nick Piggin
2003-02-10 3:42 ` Rik van Riel
2003-02-10 4:15 ` Rik van Riel
2003-02-10 4:19 ` David Lang
2003-02-10 4:29 ` Rik van Riel
2003-02-10 7:20 ` Andrea Arcangeli
2003-02-10 4:33 ` Andrew Morton
2003-02-10 4:47 ` Rik van Riel
2003-02-10 7:31 ` Andrea Arcangeli
2003-02-10 4:51 ` Jakob Oestergaard
2003-02-10 4:58 ` Nick Piggin
2003-02-10 5:10 ` Jakob Oestergaard
2003-02-10 6:06 ` Valdis.Kletnieks
2003-02-10 6:31 ` Jakob Oestergaard
2003-02-10 7:36 ` Andrea Arcangeli
2003-02-10 7:41 ` Nick Piggin
2003-02-10 8:08 ` Andrea Arcangeli
2003-02-10 8:19 ` Andrew Morton
2003-02-10 8:56 ` Andrea Arcangeli
2003-02-10 9:09 ` Andrew Morton
2003-02-10 9:14 ` Andrea Arcangeli
2003-02-10 10:07 ` Hans Reiser
2003-02-10 10:15 ` Andrea Arcangeli
2003-02-10 10:40 ` Nick Piggin
2003-02-10 11:10 ` Andrea Arcangeli
2003-02-10 11:21 ` Andrew Morton
2003-02-10 11:31 ` Andrea Arcangeli
2003-02-10 11:24 ` Nick Piggin
2003-02-10 11:39 ` Andrea Arcangeli
2003-02-10 11:45 ` Nick Piggin
2003-02-10 12:00 ` Andrea Arcangeli
2003-02-10 12:11 ` Nick Piggin
2003-02-10 12:22 ` Andrea Arcangeli
2003-02-10 12:36 ` Nick Piggin
2003-02-10 12:47 ` Andrea Arcangeli
2003-02-10 13:26 ` Rik van Riel
2003-02-10 11:48 ` Andrew Morton
2003-02-10 11:53 ` Nick Piggin
2003-02-10 12:10 ` Andrea Arcangeli
2003-02-10 12:14 ` Nick Piggin
2003-02-10 12:26 ` Andrea Arcangeli
2003-02-10 12:12 ` Andrew Morton
2003-02-10 12:25 ` Andrea Arcangeli
2003-02-10 12:27 ` Nick Piggin
2003-02-10 12:30 ` Andrea Arcangeli
2003-02-10 12:34 ` Nick Piggin
2003-02-10 12:43 ` Andrea Arcangeli
2003-02-10 12:55 ` Nick Piggin
2003-02-10 13:30 ` Rik van Riel
2003-02-11 19:13 ` Rod Van Meter
2003-02-10 12:09 ` Andrea Arcangeli
2003-02-10 12:17 ` Nick Piggin
2003-02-10 12:28 ` Andrea Arcangeli
2003-02-10 12:58 ` Hans Reiser
2003-02-10 13:18 ` Andrea Arcangeli
2003-02-10 20:14 ` Hans Reiser
2003-02-10 13:19 ` Nick Piggin
2003-02-10 14:49 ` stochastic fair queueing in the elevator [Re: [BENCHMARK] 2 Giuliano Pochini
2003-02-10 15:05 ` Andrea Arcangeli
2003-02-10 11:25 ` stochastic fair queueing in the elevator [Re: [BENCHMARK] 2.4.20-ck3 / aa / rmap with contest] Hans Reiser
2003-02-10 11:42 ` Andrew Morton
2003-02-10 13:00 ` Hans Reiser
2003-02-10 10:48 ` Andrew Morton
2003-02-10 10:55 ` Nick Piggin
2003-02-10 11:21 ` Andrea Arcangeli
2003-02-10 11:33 ` Andrew Morton
2003-02-10 11:43 ` Andrea Arcangeli
2003-02-10 11:39 ` Nick Piggin
2003-02-10 9:59 ` Hans Reiser
2003-02-10 10:06 ` Andrew Morton
2003-02-10 10:17 ` Hans Reiser
2003-02-10 10:39 ` Hans Reiser
2003-02-10 8:27 ` Nick Piggin
2003-02-10 9:02 ` Andrea Arcangeli
2003-02-10 9:18 ` Nick Piggin
2003-02-10 20:33 ` Kurt Garloff
2003-02-10 21:43 ` Rik van Riel
2003-02-10 5:01 ` Andrew Morton
2003-02-10 7:34 ` Andrea Arcangeli
2003-02-10 4:44 ` Rik van Riel
2003-02-10 7:31 ` Andrea Arcangeli
2003-02-10 7:17 ` Andrea Arcangeli
2003-02-10 7:39 ` Nick Piggin
2003-02-10 10:03 ` stochastic fair queueing in the elevator [Re: [BENCHMARK] 2 Giuliano Pochini
2003-02-10 16:23 ` stochastic fair queueing in the elevator [Re: [BENCHMARK] 2.4.20-ck3 / aa / rmap with contest] Pavel Machek
2003-02-11 11:49 ` Andrea Arcangeli
2003-02-11 12:43 ` Jens Axboe
2003-02-11 14:28 ` Jason Lunz
2003-02-11 14:41 ` Jens Axboe
2003-02-11 17:17 ` Jason Lunz
2003-02-11 20:19 ` Jens Axboe
2003-02-10 16:47 ` Pavel Machek
2003-02-11 11:01 ` Jens Axboe [this message]
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