Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263496AbTFDQEZ (ORCPT ); Wed, 4 Jun 2003 12:04:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263542AbTFDQEZ (ORCPT ); Wed, 4 Jun 2003 12:04:25 -0400 Received: from thebsh.namesys.com ([212.16.7.65]:34779 "HELO thebsh.namesys.com") by vger.kernel.org with SMTP id S263496AbTFDQEY convert rfc822-to-8bit (ORCPT ); Wed, 4 Jun 2003 12:04:24 -0400 Content-Type: text/plain; charset="us-ascii" From: Vladimir Saveliev Organization: namesys To: linux-kernel@vger.kernel.org Subject: file write performance drop between 2.5.60 and 2.5.70 Date: Wed, 4 Jun 2003 20:17:53 +0400 User-Agent: KMail/1.4.1 Cc: reiserfs-dev@namesys.com MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Message-Id: <200306042017.53435.vs@namesys.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 633 Lines: 26 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? Thanks, vs - 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/