Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765401AbXEVKz6 (ORCPT ); Tue, 22 May 2007 06:55:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756833AbXEVKzv (ORCPT ); Tue, 22 May 2007 06:55:51 -0400 Received: from mail01.syd.optusnet.com.au ([211.29.132.182]:40501 "EHLO mail01.syd.optusnet.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755116AbXEVKzu (ORCPT ); Tue, 22 May 2007 06:55:50 -0400 From: Con Kolivas To: Ingo Molnar Subject: Re: [PATCH] mm: swap prefetch improvements Date: Tue, 22 May 2007 20:54:46 +1000 User-Agent: KMail/1.9.5 Cc: Antonino Ingargiola , Nick Piggin , Ray Lee , ck list , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org References: <20070430162007.ad46e153.akpm@linux-foundation.org> <200705222037.54741.kernel@kolivas.org> <20070522104648.GA10622@elte.hu> In-Reply-To: <20070522104648.GA10622@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200705222054.46488.kernel@kolivas.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 714 Lines: 17 On Tuesday 22 May 2007 20:46, Ingo Molnar wrote: > It clearly should not consider 'itself' as IO activity. This suggests > some bug in the 'detect activity' mechanism, agreed? I'm wondering > whether you are seeing the same problem, or is all swap-prefetch IO on > your system continuous until it's done [or some other IO comes > inbetween]? When nothing else is happening anywhere on the system it reads in bursts and goes to sleep during journal writeout. -- -ck - 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/