Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262910AbUCRTzj (ORCPT ); Thu, 18 Mar 2004 14:55:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262909AbUCRTwv (ORCPT ); Thu, 18 Mar 2004 14:52:51 -0500 Received: from ns.suse.de ([195.135.220.2]:52666 "EHLO Cantor.suse.de") by vger.kernel.org with ESMTP id S262910AbUCRTuC (ORCPT ); Thu, 18 Mar 2004 14:50:02 -0500 Date: Thu, 18 Mar 2004 20:50:01 +0100 Message-ID: From: Takashi Iwai To: Andrea Arcangeli Cc: Andrew Morton , mjy@geizhals.at, linux-kernel@vger.kernel.org Subject: Re: CONFIG_PREEMPT and server workloads In-Reply-To: <20040318194345.GD2022@dualathlon.random> References: <40591EC1.1060204@geizhals.at> <20040318060358.GC29530@dualathlon.random> <20040318110159.321754d8.akpm@osdl.org> <20040318111807.7fa62340.akpm@osdl.org> <20040318194345.GD2022@dualathlon.random> User-Agent: Wanderlust/2.10.1 (Watching The Wheels) SEMI/1.14.5 (Awara-Onsen) FLIM/1.14.5 (Demachiyanagi) APEL/10.6 MULE XEmacs/21.4 (patch 13) (Rational FORTRAN) (i386-suse-linux) MIME-Version: 1.0 (generated by SEMI 1.14.5 - "Awara-Onsen") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 873 Lines: 22 At Thu, 18 Mar 2004 20:43:45 +0100, Andrea Arcangeli wrote: > > On Thu, Mar 18, 2004 at 08:20:17PM +0100, Takashi Iwai wrote: > > also, the total buffer underrun/overrun problem doesn't happen *so* > > often (except for the heavy i/o load, etc). > > you mean because the disk has not enough bandwidth to read the file, > right? (not scheduler related) it's just my general opinion judging from the bug reports from ALSA users. the i/o load has more influence than scheduler-senstive loads. i think i can test the "pseudo" interactivity with the latency test program running as a normal user. i'll try it tonight. Takashi - 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/