From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266224AbUGJMJ7 (ORCPT ); Sat, 10 Jul 2004 08:09:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266227AbUGJMJ7 (ORCPT ); Sat, 10 Jul 2004 08:09:59 -0400 Received: from smtp106.mail.sc5.yahoo.com ([66.163.169.226]:10116 "HELO smtp106.mail.sc5.yahoo.com") by vger.kernel.org with SMTP id S266224AbUGJMJl (ORCPT ); Sat, 10 Jul 2004 08:09:41 -0400 Message-ID: <40EFDC80.4090807@yahoo.com.au> Date: Sat, 10 Jul 2004 22:09:36 +1000 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040401 Debian/1.6-4 X-Accept-Language: en MIME-Version: 1.0 To: =?ISO-8859-1?Q?ismail_d=F6nmez?= CC: arjanv@redhat.com, Ingo Molnar , Redeeman , LKML Mailinglist Subject: Re: [announce] [patch] Voluntary Kernel Preemption Patch References: <20040709182638.GA11310@elte.hu> <1089407610.10745.5.camel@localhost> <20040710080234.GA25155@elte.hu> <20040710085044.GA14262@elte.hu> <2a4f155d040710035512f21d34@mail.gmail.com> <1089458801.2704.3.camel@laptop.fenrus.com> <2a4f155d040710050166e98a7f@mail.gmail.com> In-Reply-To: <2a4f155d040710050166e98a7f@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org ismail dönmez wrote: > cartman@southpark:~$ dmesg | grep sched > Using anticipatory io scheduler > > Problem is I rarely do this copy operations like once a week or 2 > weeks. Guess there is no scheduler that fits both desktop usage + > these kinds of operations? > For our benefit, could you try to recreate the situation with the cfq scheduler, and see if it still skips? If not, also do a run with the anticpatory scheduler again to see if your recreation was enough to cause a skip there... That would at least point to the culprit (disk or cpu starvation) Thanks Nick