From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965029AbWDHRHa (ORCPT ); Sat, 8 Apr 2006 13:07:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965030AbWDHRHa (ORCPT ); Sat, 8 Apr 2006 13:07:30 -0400 Received: from wproxy.gmail.com ([64.233.184.237]:55103 "EHLO wproxy.gmail.com") by vger.kernel.org with ESMTP id S965029AbWDHRHa convert rfc822-to-8bit (ORCPT ); Sat, 8 Apr 2006 13:07:30 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=N18hlpddRAb3iDsA/VzLOPIBBmI0qp6WgwUgxjvzvM2pNX9Vf9Gt5tzwXHumna3mEjXKJ6a6WYHcLzr51SRqycoRsQdJqECdSQ5dggKiJZ835uvGLYocof4G6G4TXkgJD+cpQTVa87DptkdSkDcSUoUsLnLt4308omH3AGSuhRY= Message-ID: <5a4c581d0604081007t32863bf4n1253ebd8352dbf35@mail.gmail.com> Date: Sat, 8 Apr 2006 19:07:28 +0200 From: "Alessandro Suardi" To: "Arjan van de Ven" Subject: Re: 40% IDE performance regression going from FC3 to FC5 with same kernel Cc: "Linux Kernel" In-Reply-To: <1144514167.2989.10.camel@laptopd505.fenrus.org> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <5a4c581d0604080747w61464d48k5480391d98b2bc47@mail.gmail.com> <5a4c581d0604080834k7961aff5l7794b8893325a90c@mail.gmail.com> <1144511112.2989.8.camel@laptopd505.fenrus.org> <5a4c581d0604080927g532b6d10y7992d9adb4e63d08@mail.gmail.com> <1144514167.2989.10.camel@laptopd505.fenrus.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 4/8/06, Arjan van de Ven wrote: > On Sat, 2006-04-08 at 18:27 +0200, Alessandro Suardi wrote: > > On 4/8/06, Arjan van de Ven wrote: > > > > > > > Just for the record - no, even rebuilding same kernel with same GCC > > > > (3.4.4) under FC5, disk performance is much slower than FC3 - > > > > according to hdparm _and_ dd tests. > > > > > > what happens if you kill hald and other inotify using animals? > > > > Thanks Arjan for looking into this. > > > > Stopping hald brings hdparm from 18.5MB/s to 20MB/s, which is > > indeed a noticeable improvement, though still far from the FC3 > > performance. I'm unsure what else can be stopped however > > from this process list: > > > > 274 ? S > > try killing that one next; it may or may not help but it's sure worth a > try (esp given the success of the first kill :) killing udevd doesn't bring any improvement - still at 20MB/s. Do you want me to file a FC5 bugzilla entry with the current info or do you think there is something else that can be discussed on lkml ? Thanks, --alessandro "Dreamer ? Each one of us is a dreamer. We just push it down deep because we are repeatedly told that we are not allowed to dream in real life" (Reinhold Ziegler)