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Message-ID: <3D227621.B0A5C826@zip.com.au>
Date: Tue, 02 Jul 2002 20:57:21 -0700
From: Andrew Morton <akpm@zip.com.au>
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To: khromy <khromy@lnuxlab.ath.cx>
CC: linux-kernel@vger.kernel.org, ext3-users@redhat.com
Subject: Re: sync slowness. ext3 on VIA vt82c686b
References: <20020703022051.GA2669@lnuxlab.ath.cx> <3D226E86.695D27F3@zip.com.au> <20020703033538.GA3004@lnuxlab.ath.cx>
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khromy wrote:
> 
> On Tue, Jul 02, 2002 at 08:24:54PM -0700, Andrew Morton wrote:
> >khromy wrote:
> >>
> >>When I copy a file(13Megs) from /home/ to /tmp/, sync takes almost 2 minutes.
> >>When I copy the same file to /usr/local/, sync returns almost right away.
> >
> >Gad.  Please, mount those filesystems as ext2 and retest.
> 
> I just did, same exact behavior.. Anything else?
> 

Possibly what is happening is that the /tmp partition lies on
a part of the disk which has a higher platter transfer speed
and this higher speed is causing retries or other problems
further down the chain.

You could have a fiddle with hdparm, try slowing down the
interface speed.  Try a different set of cables, too.

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