Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261710AbUCSDHo (ORCPT ); Thu, 18 Mar 2004 22:07:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261909AbUCSDHo (ORCPT ); Thu, 18 Mar 2004 22:07:44 -0500 Received: from tomts16-srv.bellnexxia.net ([209.226.175.4]:50421 "EHLO tomts16-srv.bellnexxia.net") by vger.kernel.org with ESMTP id S261710AbUCSDHn (ORCPT ); Thu, 18 Mar 2004 22:07:43 -0500 Subject: Re: CONFIG_PREEMPT and server workloads From: Eric St-Laurent To: Takashi Iwai Cc: linux-kernel@vger.kernel.org In-Reply-To: References: <40591EC1.1060204@geizhals.at> <20040318060358.GC29530@dualathlon.random> Content-Type: text/plain Message-Id: <1079665660.7609.6.camel@orbiter> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 Date: Thu, 18 Mar 2004 22:07:41 -0500 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 808 Lines: 22 On Thu, 2004-03-18 at 10:28, Takashi Iwai wrote: > in my case with reiserfs, i got 0.4ms RT-latency with my test suite > (with athlon 2200+). > > there is another point to be fixed in the reiserfs journal > transaction. then you'll get 0.1ms RT-latency without preemption. Are you talking about the following patch recently merged in Linus tree? [PATCH] resierfs: scheduling latency improvements http://linus.bkbits.net:8080/linux-2.5/cset@40571b49jtE7PzOtsXjBx65-GoDijg I'm interested to try any patch you might have to help reduce latency with reiserfs. - 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/