From: Andrew Morton <akpm@osdl.org>
To: Stefan Foerster <stefan@stefan-foerster.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Very bad interactivity with 2.6.0 and SCSI disks (aic7xxx)
Date: Sun, 17 Aug 2003 19:21:03 -0700 [thread overview]
Message-ID: <20030817192103.798994d8.akpm@osdl.org> (raw)
In-Reply-To: <20030818013243.GB21665@in-ws-001.cid-net.de>
Stefan Foerster <stefan@stefan-foerster.de> wrote:
>
> But as soon as I do a
>
> while true; do dd if=/dev/zero of=test bs=1024 count=1048576 ; rm test
> ; done
>
> on my SCSI disk, the system becomes completely unusuable after a few
> seconds.
I've been running an aic7xx-based desktop on 2.5/2.6 for ages, no
such problems.
A kernel profile would be needed to diagnose this. You could use
readprofile, but as it may be an interrupt problem, the NMI-based oprofile
output would be better.
next prev parent reply other threads:[~2003-08-18 2:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-18 1:32 Very bad interactivity with 2.6.0 and SCSI disks (aic7xxx) Stefan Foerster
2003-08-18 2:21 ` Andrew Morton [this message]
2003-08-18 2:31 ` William Lee Irwin III
2003-08-18 5:48 ` Stefan Foerster
2003-08-18 6:03 ` Andrew Morton
2003-08-19 5:43 ` Stefan Foerster
2003-08-19 5:54 ` Nick Piggin
2003-08-18 19:04 ` Justin T. Gibbs
2003-08-18 19:49 ` Stefan Foerster
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