From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965018AbWDHQ1X (ORCPT ); Sat, 8 Apr 2006 12:27:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965019AbWDHQ1X (ORCPT ); Sat, 8 Apr 2006 12:27:23 -0400 Received: from wproxy.gmail.com ([64.233.184.224]:29986 "EHLO wproxy.gmail.com") by vger.kernel.org with ESMTP id S965018AbWDHQ1W convert rfc822-to-8bit (ORCPT ); Sat, 8 Apr 2006 12:27:22 -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=AiW9GvCupKL6jm3bl5LaLy5FkJdeRnkwIhlYW/MN11BZFV5z+m/gXw3SCRPPiCnzG5TWS3yqPelKNLmbAQSar8o9L3QbgYw5rlHSn5ZlsbCkSEL7FpfzTey2kFc6BaGuaIvgcFZomWs9z75SPJU/QiVPSr3K3bjs4nKQaCFP3Ao= Message-ID: <5a4c581d0604080927g532b6d10y7992d9adb4e63d08@mail.gmail.com> Date: Sat, 8 Apr 2006 18:27:21 +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: <1144511112.2989.8.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> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org 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: [root@donkey init.d]# ps ax PID TTY STAT TIME COMMAND 1 ? S 0:00 init [3] 2 ? SN 0:00 [ksoftirqd/0] 3 ? S 0:00 [watchdog/0] 4 ? S< 0:00 [events/0] 5 ? S< 0:00 [khelper] 6 ? S< 0:00 [kthread] 8 ? S< 0:00 [kblockd/0] 11 ? S< 0:00 [khubd] 40 ? S 0:00 [kapmd] 72 ? S 0:00 [pdflush] 73 ? S 0:00 [pdflush] 74 ? S 0:00 [kswapd0] 75 ? S< 0:00 [aio/0] 76 ? S 0:00 [cifsoplockd] 77 ? S 0:00 [cifsdnotifyd] 153 ? S< 0:00 [kseriod] 186 ? S 0:00 [kedac] 199 ? S 0:00 [kjournald] 274 ? S