From: Jeff Sipek <jeffpc@optonline.net>
To: Jens Axboe <axboe@suse.de>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Time sliced CFQ #2
Date: Sun, 05 Dec 2004 19:29:54 -0500 [thread overview]
Message-ID: <20041206002954.GA28205@optonline.net> (raw)
In-Reply-To: <20041205185844.GF6430@suse.de>
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On Sun, Dec 05, 2004 at 07:58:45PM +0100, Jens Axboe wrote:
> It should be really easy to try some rudimentary prio io support - just
> scale the time slice based on process priority. A few lines of code
> change, and io priority now follows process cpu scheduler priority. To
> work really well, the code probably needs a few more limits besides just
> slice time.
I started working on the rudimentary io prio code, and it got me thinking...
Why use the cpu scheduler priorities? Wouldn't it make more sense to add
io_prio to task_struct? This way you can have a process which you know needs
a lot of CPU but not as much io, or the other way around.
What do you think?
Jeff.
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next prev parent reply other threads:[~2004-12-06 0:29 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-04 10:49 [PATCH] Time sliced CFQ #2 Jens Axboe
2004-12-04 16:39 ` Jeff Sipek
2004-12-05 18:58 ` Jens Axboe
2004-12-06 0:29 ` Jeff Sipek [this message]
2004-12-06 1:59 ` Con Kolivas
2004-12-06 2:23 ` Jeff Sipek
2004-12-06 2:34 ` Con Kolivas
2004-12-06 5:00 ` Kyle Moffett
2004-12-06 5:14 ` Robert Love
2004-12-06 7:19 ` Jens Axboe
2004-12-06 12:18 ` Helge Hafting
2004-12-06 12:24 ` Jens Axboe
2004-12-06 12:21 ` Kyle Moffett
2004-12-06 16:42 ` Robert Love
2004-12-06 17:42 ` P
2004-12-06 7:15 ` Jens Axboe
2004-12-06 7:13 ` Jens Axboe
2004-12-05 14:21 ` Ed Tomlinson
2004-12-05 15:18 ` Jens Axboe
2004-12-05 17:58 ` Ed Tomlinson
2004-12-06 9:31 ` Prakash K. Cheemplavam
2004-12-06 9:35 ` Jens Axboe
2004-12-06 11:48 ` Ed Tomlinson
2004-12-06 12:31 ` Prakash K. Cheemplavam
2004-12-06 13:27 ` [PATCH] Time sliced CFQ #3 Jens Axboe
2004-12-06 14:01 ` Søren Lott
2004-12-06 15:01 ` Jens Axboe
2004-12-06 15:45 ` Jens Axboe
2004-12-06 15:07 ` Prakash K. Cheemplavam
2004-12-06 23:30 ` Ed Tomlinson
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