From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268243AbUHWXMn (ORCPT ); Mon, 23 Aug 2004 19:12:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268078AbUHWXKB (ORCPT ); Mon, 23 Aug 2004 19:10:01 -0400 Received: from mustang.oldcity.dca.net ([216.158.38.3]:8076 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S263117AbUHWXEg (ORCPT ); Mon, 23 Aug 2004 19:04:36 -0400 Subject: Re: [patch] voluntary-preempt-2.6.8.1-P8 From: Lee Revell To: Ingo Molnar Cc: linux-kernel In-Reply-To: <20040823225255.GA16820@elte.hu> References: <20040816113131.GA30527@elte.hu> <20040816120933.GA4211@elte.hu> <1092716644.876.1.camel@krustophenia.net> <20040817080512.GA1649@elte.hu> <20040819073247.GA1798@elte.hu> <20040820133031.GA13105@elte.hu> <20040820195540.GA31798@elte.hu> <20040821140501.GA4189@elte.hu> <20040823210151.GA10949@elte.hu> <1093300882.826.28.camel@krustophenia.net> <20040823225255.GA16820@elte.hu> Content-Type: text/plain Message-Id: <1093302276.826.32.camel@krustophenia.net> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Mon, 23 Aug 2004 19:04:37 -0400 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2004-08-23 at 18:52, Ingo Molnar wrote: > * Lee Revell wrote: > > On Mon, 2004-08-23 at 17:01, Ingo Molnar wrote: > > > > > > http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.8.1-P8 > > > > > Should this fix the 500+ usec latency I saw in rt_garbage_collect? > > This one took a while to occur (overnight). > > i dont think it will. Does the patch below help? > Probably. This one is pretty rare, it might take a day to recur, and it's pretty clear the patch will fix the problem, so I recommend adding it to P9. Lee