Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270476AbUKAQsr (ORCPT ); Mon, 1 Nov 2004 11:48:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270453AbUKAQsr (ORCPT ); Mon, 1 Nov 2004 11:48:47 -0500 Received: from smtp3.netcabo.pt ([212.113.174.30]:3038 "EHLO exch01smtp11.hdi.tvcabo") by vger.kernel.org with ESMTP id S270476AbUKAQsI (ORCPT ); Mon, 1 Nov 2004 11:48:08 -0500 Message-ID: <32840.192.168.1.5.1099327643.squirrel@192.168.1.5> In-Reply-To: <20041101115546.GA2620@elte.hu> References: <20041030231358.6f1eeeac@mango.fruits.de> <1099171567.1424.9.camel@krustophenia.net> <20041030233849.498fbb0f@mango.fruits.de> <20041031120721.GA19450@elte.hu> <20041031124828.GA22008@elte.hu> <1099227269.1459.45.camel@krustophenia.net> <20041031131318.GA23437@elte.hu> <20041031134016.GA24645@elte.hu> <20041031162059.1a3dd9eb@mango.fruits.de> <20041031165913.2d0ad21e@mango.fruits.de> <20041101115546.GA2620@elte.hu> Date: Mon, 1 Nov 2004 16:47:23 -0000 (WET) Subject: Re: [Fwd: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.4] From: "Rui Nuno Capela" To: "Ingo Molnar" Cc: "Florian Schmidt" , "Lee Revell" , "Paul Davis" , "Thomas Gleixner" , "LKML" , mark_h_johnson@raytheon.com, "Bill Huey" , "Adam Heath" , "Michal Schmidt" , "Fernando Pablo Lopez-Lezcano" , "Karsten Wiese" , "jackit-devel" User-Agent: SquirrelMail/1.4.3a X-Mailer: SquirrelMail/1.4.3a MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-Priority: 3 (Normal) Importance: Normal X-OriginalArrivalTime: 01 Nov 2004 16:47:54.0001 (UTC) FILETIME=[88400010:01C4C032] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1272 Lines: 39 Ingo Molnar wrote: > > > i've uploaded -V0.6.3 to the usual place: > > http://redhat.com/~mingo/realtime-preempt/ > > which fixes two issues: > > - priorities of SCHED_OTHER tasks not getting properly managed, hence > they could end up 'starving' other SCHED_OTHER tasks pretty > indefinitely. This could possibly solve the 'temporary lockup' > problem reported by Mark H Johnson. > > - fixed the 'high load average' bug > > i dont know whether this will solve the 'hard lockups' reported though. > It could solve your problem because the 'find /' kept running so it > wasnt a hard lockup. I'll keep testing and i'll fix any problem i can > reproduce myself. > OK. Just tested in a hurry with RT-V0.6.4, and it passed three times in a row my jackd-R + 9*fluidsynth tests, without freezing, so I think the problem was the 'starvation' one. OTOH, I can say that the results I'm early reading are really an improvement. Fewer xruns and smaller delays. Nice. Cheers. -- rncbc aka Rui Nuno Capela rncbc@rncbc.org - 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/