From mboxrd@z Thu Jan 1 00:00:00 1970 From: Szakacsits Szabolcs Subject: Re: [benchmark] seek optimization Date: Thu, 15 Jul 2004 21:17:37 +0200 (MEST) Sender: linux-fsdevel-owner@vger.kernel.org Message-ID: References: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: Bryan Henderson , Guy , linux-fsdevel@vger.kernel.org, 'Marcel Hilzinger' , 'Per Olofsson' , reiserfs-list@namesys.com Return-path: Received: from mlf.linux.rulez.org ([192.188.244.13]:34310 "EHLO mlf.linux.rulez.org") by vger.kernel.org with ESMTP id S266289AbUGOTRk (ORCPT ); Thu, 15 Jul 2004 15:17:40 -0400 To: Jens Axboe In-Reply-To: List-Id: linux-fsdevel.vger.kernel.org On Thu, 15 Jul 2004, Szakacsits Szabolcs wrote: > On Thu, 15 Jul 2004, Jens Axboe wrote: > > > > 2) Apparently the 2.6 kernel's IO scheduler has a performance problem. > > > > Which one did you test? > > > The default in 2.6.7. It seems that one is the AS. The "deadline" elevator gave 1-2% worse results for all fs and 5% worse result for the raw access than the "as" scheduler. Szaka