From: Paul Clements <Paul.Clements@SteelEye.com>
To: "Sven Köhler" <skoehler@upb.de>
Cc: Pavel Machek <pavel@suse.cz>, linux-kernel@vger.kernel.org
Subject: Re: [NBD] patch and documentation
Date: Mon, 08 Sep 2003 17:10:29 -0400 [thread overview]
Message-ID: <3F5CF045.DDDE475C@SteelEye.com> (raw)
In-Reply-To: 3F5CE3E6.8070201@upb.de
Sven Köhler wrote:
> Well, i guess the cache uses a value of 256 sectors to do read-ahead and
> such.
Well it sounds like the real problem here is the vm_max_readahead
setting then. Try this:
cat /proc/sys/vm/max-readahead
Probably, it's set to 31 on your system.
Try something like the following:
echo "126" > /proc/sys/vm/max-readahead
I think that should help out.
--
Paul
next prev parent reply other threads:[~2003-09-08 21:11 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-08 16:59 [NBD] patch and documentation Sven Köhler
2003-09-08 19:38 ` Pavel Machek
2003-09-08 19:42 ` Sven Köhler
2003-09-08 20:04 ` Paul Clements
2003-09-08 20:17 ` Sven Köhler
2003-09-08 21:10 ` Paul Clements [this message]
2003-09-08 22:04 ` Sven Köhler
2003-09-08 22:17 ` Pavel Machek
2003-09-08 22:13 ` Sven Köhler
2003-09-08 22:21 ` Pavel Machek
2003-09-08 22:24 ` Sven Köhler
2003-09-08 23:28 ` Pavel Machek
2003-09-09 0:12 ` Sven Köhler
2003-09-09 0:47 ` Paul Clements
2003-09-09 0:52 ` Sven Köhler
2003-09-09 6:10 ` Sven Köhler
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