Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261808AbVBXFAC (ORCPT ); Thu, 24 Feb 2005 00:00:02 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261794AbVBXFAB (ORCPT ); Thu, 24 Feb 2005 00:00:01 -0500 Received: from bay-bridge.veritas.com ([143.127.3.10]:50824 "EHLO MTVMIME01.enterprise.veritas.com") by vger.kernel.org with ESMTP id S261808AbVBXE54 (ORCPT ); Wed, 23 Feb 2005 23:57:56 -0500 Date: Thu, 24 Feb 2005 04:56:51 +0000 (GMT) From: Hugh Dickins X-X-Sender: hugh@goblin.wat.veritas.com To: Lee Revell cc: Ingo Molnar , Nick Piggin , Andrew Morton , linux-kernel Subject: Re: More latency regressions with 2.6.11-rc4-RT-V0.7.39-02 In-Reply-To: <1109196824.4009.1.camel@krustophenia.net> Message-ID: References: <1109182061.16201.6.camel@krustophenia.net> <1109187381.3174.5.camel@krustophenia.net> <1109196824.4009.1.camel@krustophenia.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1205 Lines: 29 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. Hugh - 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/