Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933159AbZARKh2 (ORCPT ); Sun, 18 Jan 2009 05:37:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762645AbZARKhN (ORCPT ); Sun, 18 Jan 2009 05:37:13 -0500 Received: from mx2.redhat.com ([66.187.237.31]:37033 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761028AbZARKhM (ORCPT ); Sun, 18 Jan 2009 05:37:12 -0500 Message-ID: <49730617.3090807@redhat.com> Date: Sun, 18 Jan 2009 12:36:07 +0200 From: Avi Kivity User-Agent: Thunderbird 2.0.0.19 (X11/20090105) MIME-Version: 1.0 To: Ingo Molnar CC: Mike Galbraith , Kevin Shanahan , Andrew Morton , a.p.zijlstra@chello.nl, torvalds@linux-foundation.org, linux-kernel@vger.kernel.org Subject: Re: [git pull] scheduler fixes References: <1232173776.7073.21.camel@marge.simson.net> <1232186054.6813.48.camel@marge.simson.net> <1232186877.14073.59.camel@laptop> <1232188484.6813.85.camel@marge.simson.net> <1232193617.14073.67.camel@laptop> <1232194752.6273.5.camel@marge.simson.net> <20090117044316.bda7d0bd.akpm@linux-foundation.org> <1232198574.16303.8.camel@marge.simson.net> <20090117160115.GA31601@elte.hu> <4972E860.5080206@redhat.com> <20090118083744.GB21940@elte.hu> <4972EF6B.90207@redhat.com> <4972FC74.40908@redhat.com> In-Reply-To: <4972FC74.40908@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 903 Lines: 27 Avi Kivity wrote: > Avi Kivity wrote: >> >> A simple test running 10 idle guests over 4 cores doesn't reproduce >> (2.6.29-rc). However we likely need a more complicated setup. >> > > Letting the ping run for a while, I see > >> --- 10.35.18.172 ping statistics --- >> 846 packets transmitted, 846 received, 0% packet loss, time 845917ms >> rtt min/avg/max/mdev = 0.131/2.572/305.452/20.236 ms > > So it does reproduce. I had a large Vista guest on that machine, so it was swapping heavily. Without swapping, latency is never more than a few milliseconds, and usually 150 microseconds. -- error compiling committee.c: too many arguments to function -- 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/