Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 3 Mar 2002 20:10:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 3 Mar 2002 20:10:31 -0500 Received: from flrtn-4-m1-42.vnnyca.adelphia.net ([24.55.69.42]:43995 "EHLO jyro.mirai.cx") by vger.kernel.org with ESMTP id ; Sun, 3 Mar 2002 20:10:21 -0500 Message-ID: <3C82C95D.5010703@tmsusa.com> Date: Sun, 03 Mar 2002 17:09:49 -0800 From: J Sloan User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.8) Gecko/20020207 X-Accept-Language: en-us MIME-Version: 1.0 To: Alan Cox CC: Ben Greear , linux-kernel Subject: Re: latency & real-time-ness. In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-MailScanner: Found to be clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Alan Cox wrote: >>I'm running the program at nice -18. >>So, what kind of things can I do to decrease the latency? >> > >Hack up the ksoftirq stuff to only fall back to ksoftirqd after about >500 iterations instead of one is one little detail to deal with > >>Would the low-latency patch help me? >> > >Yes > It might be very difficult to fix up the low latency patch for the latest -ac, but the mini-low-latency patch should go right in - that should fix the worst of it, and I've run 2.4.19-pre2-ac1 with the mini low-latency patch. It's part of the -aa patch collection, just look for "00_lowlatency-fixes-4" or so. Joe - 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/