From: Wiktor Wodecki <wodecki@gmx.de>
To: Andrew Morton <akpm@osdl.org>
Cc: Valdis.Kletnieks@vt.edu, kernel@kolivas.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] O10int for interactivity
Date: Mon, 28 Jul 2003 23:29:39 +0200 [thread overview]
Message-ID: <20030728212939.GB6798@gmx.de> (raw)
In-Reply-To: <20030728114041.2c8ce156.akpm@osdl.org>
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On Mon, Jul 28, 2003 at 11:40:41AM -0700, Andrew Morton wrote:
> Valdis.Kletnieks@vt.edu wrote:
> >
> > I am, however, able to get 'xmms' to skip. The reason is that the CPU is being
> > scheduled quite adequately, but I/O is *NOT*.
> >
> > ...
> > I'm guessing that the anticipatory scheduler is the culprit here. Soon as I figure
> > out the incantations to use the deadline scheduler, I'll report back....
>
> Try decreasing the expiry times in /sys/block/hda/queue/iosched:
>
> read_batch_expire
> read_expire
> write_batch_expire
> write_expire
I noticed that when bringing a huge application out of swap (mozilla,
openoffice, also tested the gimp with 50 images open) that dividing
everything by 2 in those 4 files I get a decent process fork. Without
this tuning the fork (xterm) waits till the application is back up.
--
Regards,
Wiktor Wodecki
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next prev parent reply other threads:[~2003-07-28 21:31 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-27 15:12 [PATCH] O10int for interactivity Con Kolivas
2003-07-27 16:26 ` Wade
2003-07-27 19:15 ` Felipe Alfaro Solana
2003-07-28 7:51 ` Wiktor Wodecki
2003-07-28 7:55 ` Andrew Morton
2003-07-28 8:00 ` Wiktor Wodecki
2003-07-28 17:12 ` Jose Luis Domingo Lopez
2003-07-28 18:08 ` Valdis.Kletnieks
2003-07-28 18:40 ` Andrew Morton
2003-07-28 21:29 ` Wiktor Wodecki [this message]
2003-07-28 21:35 ` Andrew Morton
2003-07-31 6:36 ` Nick Piggin
2003-07-31 7:43 ` Con Kolivas
2003-07-31 7:58 ` Nick Piggin
2003-07-31 14:59 ` Jamie Lokier
2003-07-31 15:24 ` Oliver Neukum
2003-07-31 15:40 ` Jamie Lokier
2003-07-31 22:56 ` Nick Piggin
2003-08-04 18:51 ` [PATCH] O13int " Felipe Alfaro Solana
2003-08-04 18:58 ` Felipe Alfaro Solana
2003-08-04 21:46 ` Con Kolivas
2003-08-04 22:16 ` Felipe Alfaro Solana
2003-07-29 14:21 ` [PATCH] O10int " Timothy Miller
2003-07-29 14:35 ` Con Kolivas
2003-07-29 15:35 ` Timothy Miller
2003-07-30 1:16 ` Diego Calleja García
2003-07-30 1:36 ` Con Kolivas
2003-07-30 19:28 ` aradorlinux
2003-07-30 19:34 ` Andrew Morton
2003-07-29 15:28 ` Valdis.Kletnieks
2003-07-29 15:44 ` Timothy Miller
2003-07-29 15:45 ` Valdis.Kletnieks
2003-07-27 19:50 Voluspa
2003-07-28 2:05 Voluspa
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