Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263737AbTFDRtT (ORCPT ); Wed, 4 Jun 2003 13:49:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263742AbTFDRtT (ORCPT ); Wed, 4 Jun 2003 13:49:19 -0400 Received: from 153.Red-213-4-13.pooles.rima-tde.net ([213.4.13.153]:37895 "EHLO small.felipe-alfaro.com") by vger.kernel.org with ESMTP id S263737AbTFDRtN (ORCPT ); Wed, 4 Jun 2003 13:49:13 -0400 Subject: Re: file write performance drop between 2.5.60 and 2.5.70 From: Felipe Alfaro Solana To: Vladimir Saveliev Cc: LKML , reiserfs-dev@namesys.com In-Reply-To: <200306042017.53435.vs@namesys.com> References: <200306042017.53435.vs@namesys.com> Content-Type: text/plain Message-Id: <1054749758.699.5.camel@teapot.felipe-alfaro.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.3.92 (Preview Release) Date: 04 Jun 2003 20:02:39 +0200 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 738 Lines: 25 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? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/