From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266603AbUG1WeH (ORCPT ); Wed, 28 Jul 2004 18:34:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266397AbUG1Wco (ORCPT ); Wed, 28 Jul 2004 18:32:44 -0400 Received: from smtp.Lynuxworks.com ([207.21.185.24]:32005 "EHLO smtp.lynuxworks.com") by vger.kernel.org with ESMTP id S266603AbUG1WcP (ORCPT ); Wed, 28 Jul 2004 18:32:15 -0400 Date: Wed, 28 Jul 2004 15:32:03 -0700 To: Lee Revell Cc: Ingo Molnar , linux-kernel , William Lee Irwin III , Lenar L?hmus , Andrew Morton , Arjan van de Ven Subject: Re: [patch] voluntary-preempt-2.6.8-rc2-L2, preemptable hardirqs Message-ID: <20040728223203.GA9009@nietzsche.lynx.com> References: <20040726082330.GA22764@elte.hu> <1090830574.6936.96.camel@mindpipe> <20040726083537.GA24948@elte.hu> <1090832436.6936.105.camel@mindpipe> <20040726124059.GA14005@elte.hu> <20040726204720.GA26561@elte.hu> <20040727162759.GA32548@elte.hu> <1090968457.743.3.camel@mindpipe> <20040728050535.GA14742@elte.hu> <1091051452.791.52.camel@mindpipe> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1091051452.791.52.camel@mindpipe> User-Agent: Mutt/1.5.6+20040722i From: Bill Huey (hui) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 28, 2004 at 05:50:52PM -0400, Lee Revell wrote: > With L2, 1:3, max_sectors_kb=256, and the above change, the performance > is truly amazing. Over 20 million interrupts, on a 600Mhz machine, the > worst latency I was able to trigger was 46 usecs. There does not seem > to be any adverse affect on any aspect of the system. > > This looks like the perfect setup for a DAW. And as a musician into the notion of owning tons of pro-audio gear (I don't at this time), I encourage you and the ALSA folks to go with it. :) bill