Date: Thu, 5 Jun 2003 11:37:02 -0700
From: Mike Fedyk <mfedyk@matchmail.com>
To: Felipe Alfaro Solana <felipe_alfaro@linuxmail.org>
Cc: Vladimir Saveliev <vs@namesys.com>, LKML <linux-kernel@vger.kernel.org>,
       reiserfs-dev@namesys.com
Subject: Re: file write performance drop between 2.5.60 and 2.5.70
Message-ID: <20030605183702.GC3291@matchmail.com>
Mail-Followup-To: Felipe Alfaro Solana <felipe_alfaro@linuxmail.org>,
	Vladimir Saveliev <vs@namesys.com>,
	LKML <linux-kernel@vger.kernel.org>, reiserfs-dev@namesys.com
References: <200306042017.53435.vs@namesys.com> <1054749758.699.5.camel@teapot.felipe-alfaro.com>
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On Wed, Jun 04, 2003 at 08:02:39PM +0200, Felipe Alfaro Solana wrote:
> On Wed, 2003-06-04 at 18:17, Vladimir Saveliev wrote:
> > Hi
> > 
> > It looks like file write performance dropped somewhere between 2.5.60 and 
> > 2.5.70.
> > Doing
> > time dd if=/dev/zero of=file bs=4096 count=60000
> > 
> > on a box with Xeon(TM) CPU 2.40GHz and 1gb of RAM
> > I get for ext2
> > 2.5.60: 	real	1.42 sys 0.77
> > 2.5.70: 	real 1.73 sys 1.23
> > for reiserfs
> > 2.5.60: 	real 1.62 sys 1.56
> > 2.5.70: 	real 1.90 sys 1.86
> > 
> > Any ideas of what could cause this drop?
> 
> What filesystem are you using?

Good one.

ext2 and reiserfs.

Read the origional message again.
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