From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267927AbUHUV4c (ORCPT ); Sat, 21 Aug 2004 17:56:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267936AbUHUV4c (ORCPT ); Sat, 21 Aug 2004 17:56:32 -0400 Received: from mustang.oldcity.dca.net ([216.158.38.3]:64223 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S267927AbUHUV4a (ORCPT ); Sat, 21 Aug 2004 17:56:30 -0400 Subject: Re: [patch] voluntary-preempt-2.6.8.1-P7 From: Lee Revell To: Ingo Molnar Cc: linux-kernel , Florian Schmidt In-Reply-To: <20040821140501.GA4189@elte.hu> References: <1092628493.810.3.camel@krustophenia.net> <20040816040515.GA13665@elte.hu> <1092654819.5057.18.camel@localhost> <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> Content-Type: text/plain Message-Id: <1093125390.817.22.camel@krustophenia.net> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Sat, 21 Aug 2004 17:56:30 -0400 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2004-08-21 at 10:05, Ingo Molnar wrote: > i've uploaded the -P7 patch: > > http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.8.1-P7 > > Changes since -P6: > > - fixed the XFree86/X.org context-switch latency. (let me know if you > see any weirdness like X not starting up while it did before.) > > - halved the pagevec size, to reduce the radix gang-lookup costs. > Great, this is a significant improvement. Most of the worst case latencies (~150 usec) seem related to the TCP stack now, and a minor one (51 usec) in the ext3 journaling: http://krustophenia.net/testresults.php?dataset=2.6.8.1-P7 Lee