Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261872AbVBXGil (ORCPT ); Thu, 24 Feb 2005 01:38:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261876AbVBXGeO (ORCPT ); Thu, 24 Feb 2005 01:34:14 -0500 Received: from viper.oldcity.dca.net ([216.158.38.4]:20201 "HELO viper.oldcity.dca.net") by vger.kernel.org with SMTP id S261835AbVBXGcE (ORCPT ); Thu, 24 Feb 2005 01:32:04 -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> Content-Type: text/plain Date: Thu, 24 Feb 2005 01:32:04 -0500 Message-Id: <1109226724.4957.16.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: 1400 Lines: 34 On Thu, 2005-02-24 at 04:56 +0000, Hugh Dickins wrote: > On Wed, 23 Feb 2005, Lee Revell wrote: > > On Wed, 2005-02-23 at 20:53 +0000, Hugh Dickins wrote: > > > On Wed, 23 Feb 2005, Hugh Dickins wrote: > > > > Please replace by new patch below, which I'm now running through lmbench. > > > > > > That second patch seems fine, and I see no lmbench regression from it. > > > > Should go into 2.6.11, right? > > That's up to Andrew (and Linus). > > I was thinking that way when I rushed you the patch. But given that > you have remaining unresolved latency issues nearby (zap_pte_range, > clear_page_range), and given the warning shot that I screwed up my > first attempt, I'd be inclined to say hold off. > > It's a pity: for a while we were thinking 2.6.11 would be a big step > forward for mainline latency; but it now looks to me like these tests > have come too late in the cycle to be dealt with safely. > > In other mail, you do expect people still to be using Ingo's patches, > so probably this patch should stick there (and in -mm) for now. Well all of these were fixed in the past so it may not be unreasonable to fix them for 2.6.11. 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/