Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268296AbTGLSvv (ORCPT ); Sat, 12 Jul 2003 14:51:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268304AbTGLSvv (ORCPT ); Sat, 12 Jul 2003 14:51:51 -0400 Received: from RJ161046.user.veloxzone.com.br ([200.149.161.46]:50420 "EHLO mf.dnsalias.org") by vger.kernel.org with ESMTP id S268296AbTGLSvt (ORCPT ); Sat, 12 Jul 2003 14:51:49 -0400 Subject: Re: [patch] SCHED_SOFTRR linux scheduler policy ... From: Miguel Freitas To: Davide Libenzi Cc: Linux Kernel Mailing List In-Reply-To: References: <1058017391.1197.24.camel@mf> <1058027672.1196.105.camel@mf> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.3 (1.0.3-6) Date: 12 Jul 2003 16:13:46 -0300 Message-Id: <1058037226.1196.122.camel@mf> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1348 Lines: 30 On Sat, 2003-07-12 at 13:30, Davide Libenzi wrote: > > > Patch acceptance is > > > tricky and definitely would need more discussion and test. > > > > Sure. But let me add a voice of support here: I would be great if kernel > > provided a way to multimedia or interactive applications to request a > > better latency predictability (or hint the scheduler somehow) without > > need of being root. If that comes in a form of a new scheduler policy, > > or just allowing small negative nice values for non-root i don't mind... > > You'd need a nice value that will keep you away from being caught by > interactive SCHED_OTHER. Otherwise yes, this is another solution. Did you > try it with xine under high load ? Since i upgraded my computer recently it's difficult to compare with the experiments i made before. But basically no, i haven't tried to make xine smooth under high load. my primary complain was that even a small background load caused by KSysGuard (KDE system monitor) could make it drop frames from time to time. with nice values like -2 the problem was completely fixed. regards, Miguel - 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/