From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261400AbUL2Tdm (ORCPT ); Wed, 29 Dec 2004 14:33:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261401AbUL2Tdm (ORCPT ); Wed, 29 Dec 2004 14:33:42 -0500 Received: from mustang.oldcity.dca.net ([216.158.38.3]:11173 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S261400AbUL2Tdl (ORCPT ); Wed, 29 Dec 2004 14:33:41 -0500 Subject: Latency results with 2.6.10 - looks good From: Lee Revell To: linux-kernel Cc: Ingo Molnar , Andrew Morton Content-Type: text/plain Date: Wed, 29 Dec 2004 14:33:40 -0500 Message-Id: <1104348820.5218.42.camel@krustophenia.net> Mime-Version: 1.0 X-Mailer: Evolution 2.0.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org After testing JACK with vanilla 2.6.10, it appears that the scheduling latency of 2.6.10 is a vast improvement over previous kernel releases. JACK seems to be usable with a period of 32 and 64 frames, I cannot produce xruns by moving the mouse or any amount of display or disk activity. Previous kernel releases were somewhat worse than Windows XP in this area, 2.6.10 is definitely better, maybe as good as OSX. So, it appears that all of the latency fixes going upstream from Ingo and others have really made a difference. More testing is needed but it looks like we may finally have a kernel that's usable (and in fact quite good) out of the box for low latency audio. Good work! Lee