Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764620AbXFEOG7 (ORCPT ); Tue, 5 Jun 2007 10:06:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762155AbXFEOGw (ORCPT ); Tue, 5 Jun 2007 10:06:52 -0400 Received: from waste.org ([66.93.16.53]:39243 "EHLO waste.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760512AbXFEOGv (ORCPT ); Tue, 5 Jun 2007 10:06:51 -0400 Date: Tue, 5 Jun 2007 09:06:36 -0500 From: Matt Mackall To: Ingo Molnar Cc: Rusty Russell , akpm@linux-foundation.org, Linux-kernel@vger.kernel.org Subject: Re: Interesting interaction between lguest and CFS Message-ID: <20070605140635.GS11115@waste.org> References: <20070604173710.GR11166@waste.org> <20070605092344.GA20600@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070605092344.GA20600@elte.hu> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 807 Lines: 29 On Tue, Jun 05, 2007 at 11:23:44AM +0200, Ingo Molnar wrote: > > * Matt Mackall wrote: > > > Ok, my transcoding just finished as I was writing this. So I've > > reproduced the problem with this Python script that I had handy: > > > > memload.py: > > #!/usr/bin/python > > a = "a" * 16 * 1024 * 1024 > > while 1: > > b = a[1:] + "b" > > a = b[1:] + "c" > > i suspect the same latency is triggered by a simple infinite loop too: > > while : ; do : ; done & > > correct? Yes. -- Mathematics is the supreme nostalgia of our time. - 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/