Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261451AbVAXNfD (ORCPT ); Mon, 24 Jan 2005 08:35:03 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261458AbVAXNfD (ORCPT ); Mon, 24 Jan 2005 08:35:03 -0500 Received: from mx2.elte.hu ([157.181.151.9]:19122 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S261451AbVAXNe7 (ORCPT ); Mon, 24 Jan 2005 08:34:59 -0500 Date: Mon, 24 Jan 2005 14:34:34 +0100 From: Ingo Molnar To: "Jack O'Quin" Cc: Paul Davis , Con Kolivas , linux , rlrevell@joe-job.com, CK Kernel , utz , Andrew Morton , alexn@dsv.su.se, Rui Nuno Capela , Chris Wright , Arjan van de Ven , Nick Piggin , Alexander Nyberg Subject: Re: [patch, 2.6.11-rc2] sched: /proc/sys/kernel/rt_cpu_limit tunable Message-ID: <20050124133434.GA4196@elte.hu> References: <200501201542.j0KFgOwo019109@localhost.localdomain> <87y8eo9hed.fsf@sulphur.joq.us> <20050120172506.GA20295@elte.hu> <87wtu6fho8.fsf@sulphur.joq.us> <20050122165458.GA14426@elte.hu> <87hdl940ph.fsf@sulphur.joq.us> <20050124085902.GA8059@elte.hu> <20050124125814.GA31471@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050124125814.GA31471@elte.hu> 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: 672 Lines: 19 > ok, here is another approach, against 2.6.10/11-ish kernels: > > http://redhat.com/~mingo/rt-limit-patches/ > > this patch adds the /proc/sys/kernel/rt_cpu_limit tunable: the maximum > amount of CPU time all RT tasks combined may use, in percent. Defaults > to 80%. i've just updated the -B4 patch - the earlier (-B3) patch had a last-minute bug that made the kernel enforce limit/10 - i.e. 8% instead of 80% ... 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/