Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262286AbVAONuH (ORCPT ); Sat, 15 Jan 2005 08:50:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262285AbVAONuG (ORCPT ); Sat, 15 Jan 2005 08:50:06 -0500 Received: from mx2.elte.hu ([157.181.151.9]:48362 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S262286AbVAONtw (ORCPT ); Sat, 15 Jan 2005 08:49:52 -0500 Date: Sat, 15 Jan 2005 14:49:22 +0100 From: Ingo Molnar To: "Jack O'Quin" Cc: Chris Wright , Matt Mackall , Paul Davis , Christoph Hellwig , Andrew Morton , Lee Revell , arjanv@redhat.com, alan@lxorguk.ukuu.org.uk, linux-kernel@vger.kernel.org Subject: Re: [PATCH] [request for inclusion] Realtime LSM Message-ID: <20050115134922.GA10114@elte.hu> References: <20050110212019.GG2995@waste.org> <200501111305.j0BD58U2000483@localhost.localdomain> <20050111191701.GT2940@waste.org> <20050111125008.K10567@build.pdx.osdl.net> <20050111205809.GB21308@elte.hu> <20050111131400.L10567@build.pdx.osdl.net> <20050111212719.GA23477@elte.hu> <87fz15j325.fsf@sulphur.joq.us> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87fz15j325.fsf@sulphur.joq.us> User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 863 Lines: 22 * Jack O'Quin wrote: > OK, I reran with just 5 processes reniced from -10 to -5. On my > system they were: events, khelper, kblockd, aio and reiserfs. In > addition, I reniced loop0 from -20 to -5. > One major problem: this `nice --20' hack affects every thread, not > just the critical realtime ones. That's not what we want. Audio > applications make very conscious choices which threads run with high > priority and which do not. how much did this problem affect your test? Could the source of the 500 msec delays be the non-highprio components of the test that somehow became nice --20? Ingo - 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/