From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263093AbUGXXa7 (ORCPT ); Sat, 24 Jul 2004 19:30:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263100AbUGXXa7 (ORCPT ); Sat, 24 Jul 2004 19:30:59 -0400 Received: from mustang.oldcity.dca.net ([216.158.38.3]:14820 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S263093AbUGXXa5 (ORCPT ); Sat, 24 Jul 2004 19:30:57 -0400 Subject: Re: [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch From: Lee Revell To: Ingo Molnar Cc: Jens Axboe , Andrew Morton , linux-audio-dev@music.columbia.edu, arjanv@redhat.com, linux-kernel In-Reply-To: <1090709351.1194.18.camel@mindpipe> References: <20040712174639.38c7cf48.akpm@osdl.org> <1089687168.10777.126.camel@mindpipe> <20040712205917.47d1d58b.akpm@osdl.org> <1089705440.20381.14.camel@mindpipe> <20040719104837.GA9459@elte.hu> <1090301906.22521.16.camel@mindpipe> <20040720061227.GC27118@elte.hu> <20040720121905.GG1651@suse.de> <1090642050.2871.6.camel@mindpipe> <1090647952.1006.7.camel@mindpipe> <20040724064304.GA32269@elte.hu> <1090709351.1194.18.camel@mindpipe> Content-Type: text/plain Message-Id: <1090711856.851.1.camel@mindpipe> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Sat, 24 Jul 2004 19:30:57 -0400 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2004-07-24 at 18:49, Lee Revell wrote: > On Sat, 2004-07-24 at 02:43, Ingo Molnar wrote: > > > > ok, i'll put in a tunable for the sg size. > > > I therefore propose 256KB as a good default Scratch this, I got a 380 usec spike with 256KB, enough to trigger jackd to reatart. 128KB so far has only gone as high as 185 usecs. Lee