Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755520Ab1BWRlK (ORCPT ); Wed, 23 Feb 2011 12:41:10 -0500 Received: from mx1.redhat.com ([209.132.183.28]:58305 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752712Ab1BWRlH (ORCPT ); Wed, 23 Feb 2011 12:41:07 -0500 Date: Wed, 23 Feb 2011 18:40:30 +0100 From: Andrea Arcangeli To: Mel Gorman Cc: Arthur Marsh , Clemens Ladisch , alsa-user@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: Re: [Alsa-user] new source of MIDI playback slow-down identified - 5a03b051ed87e72b959f32a86054e1142ac4cf55 thp: use compaction in kswapd for GFP_ATOMIC order > 0 Message-ID: <20110223174030.GT31195@random.random> References: <4D6367B3.9050306@googlemail.com> <20110222134047.GT13092@random.random> <20110222161513.GC13092@random.random> <4D63F6C0.7060204@internode.on.net> <20110222194325.GE31195@random.random> <20110223091532.GJ15652@csn.ul.ie> <4D64F26D.1050803@internode.on.net> <20110223170117.GK15652@csn.ul.ie> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110223170117.GK15652@csn.ul.ie> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 918 Lines: 20 On Wed, Feb 23, 2011 at 05:01:17PM +0000, Mel Gorman wrote: > I regret that yet more patches are being blasted around but I hope the included > figures will convince you to run yet-another-test. I don't know how you are > measuring how long IRQs are being disabled and when it's a problem but it's > what I'm more interested in right now than the kswapd CPU usage which I'm > still in the process of gathering data to analyse. Arthur, I suggest to apply this patch before any of my patches (just like the kswapd-high-wmark) before testing my patches. It's orthogonal so it can be applied at the same time. Acked-by: Andrea Arcangeli Thanks, Andrea -- 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/