Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262717AbVBYPET (ORCPT ); Fri, 25 Feb 2005 10:04:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262715AbVBYPET (ORCPT ); Fri, 25 Feb 2005 10:04:19 -0500 Received: from mustang.oldcity.dca.net ([216.158.38.3]:15841 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S262714AbVBYPCe (ORCPT ); Fri, 25 Feb 2005 10:02:34 -0500 Subject: Re: More latency regressions with 2.6.11-rc4-RT-V0.7.39-02 From: Lee Revell To: Hugh Dickins Cc: Ingo Molnar , Nick Piggin , Andrew Morton , linux-kernel In-Reply-To: References: <1109182061.16201.6.camel@krustophenia.net> <1109187381.3174.5.camel@krustophenia.net> <1109196824.4009.1.camel@krustophenia.net> <1109226724.4957.16.camel@krustophenia.net> <1109302249.7807.1.camel@krustophenia.net> Content-Type: text/plain Date: Fri, 25 Feb 2005 10:02:29 -0500 Message-Id: <1109343749.9456.0.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 Content-Length: 1066 Lines: 28 On Fri, 2005-02-25 at 05:58 +0000, Hugh Dickins wrote: > On Thu, 24 Feb 2005, Lee Revell wrote: > > On Thu, 2005-02-24 at 08:26 +0000, Hugh Dickins wrote: > > > > > > If we'd got to it earlier, yes. But 2.6.11 looks to be just a day or > > > two away, and we've no idea why zap_pte_range or clear_page_range > > > would have reverted. Nor have we heard from Ingo yet. > > > > It's also not clear that the patch completely fixes the copy_pte_range > > latency. This trace is from the Athlon XP. > > Then we need Ingo to investigate and explain all these reversions. > I'm not _blaming_ Ingo for them, but I'm not familiar with his patches > nor with deciphering latency traces - he's the magician around here. > Yup. Oh well. I'll try to compile a comprehensive list of these so we can fix them for 2.6.12. Lee - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/