From: Andrew Morton <akpm@zip.com.au>
To: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: temporarily system freeze with high I/O write to ext2 fs
Date: Thu, 06 Dec 2001 12:39:41 -0800 [thread overview]
Message-ID: <3C0FD78D.F567ECBD@zip.com.au> (raw)
In-Reply-To: <Pine.LNX.4.30.0112061458360.15516-100000@mustard.heime.net>
Roy Sigurd Karlsbakk wrote:
>
> hi all
>
> why is it that Linux 'hangs' while doing heavy I/O operations (such as dd)
> to (and perhaps from?) ext2 file systems? I can't see the same behaivour
> when using other file systems, such as ReiserFS
>
A partial fix for this went into 2.4.17-pre2. What kernel are you
using?
For how long does it "hang"? What exactly are you doing when it
occurs?
Is your disk system well-tuned? What throughput do you get with
`hdparm -t /dev/hdXX'?
It surprises me that resierfs behaves differently...
-
next prev parent reply other threads:[~2001-12-06 20:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-06 14:03 temporarily system freeze with high I/O write to ext2 fs Roy Sigurd Karlsbakk
2001-12-06 20:39 ` Andrew Morton [this message]
2001-12-06 23:45 ` James Stevenson
2001-12-07 0:01 ` Andrew Morton
2001-12-07 9:47 ` James Stevenson
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