From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Wawro Subject: Re: [User Question] Repeated severe performance problems on guest Date: Thu, 18 Apr 2013 12:00:52 +0200 Message-ID: <516FC454.6060902@googlemail.com> References: <5168227B.1050402@googlemail.com> <20130416054916.GA5286@stefanha-thinkpad.redhat.com> <516D0280.4090408@googlemail.com> <20130417135311.GA8954@stefanha-thinkpad.muc.redhat.com> <5C6B7C93-7905-4B5E-93BA-D0C80DA3EE84@googlemail.com> <20130418072551.GA19195@stefanha-thinkpad.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Stefan Hajnoczi Return-path: Received: from mail-bk0-f48.google.com ([209.85.214.48]:33481 "EHLO mail-bk0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755184Ab3DRKAz (ORCPT ); Thu, 18 Apr 2013 06:00:55 -0400 Received: by mail-bk0-f48.google.com with SMTP id jf3so1165705bkc.21 for ; Thu, 18 Apr 2013 03:00:54 -0700 (PDT) In-Reply-To: <20130418072551.GA19195@stefanha-thinkpad.redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 04/18/2013 09:25 AM, Stefan Hajnoczi wrote: Hi Stefan, > I see. That's a good reason to carefully monitor the host for things > that could interfere with guest performance. > > Stefan Seems that today is a bad day for our server. We had to give him the boot (again). Also the results of the pidstat output do not seem to yield much additional information on what could be the problem. In order to avoid spilling this mailing list, here is some data gathered on the host: http://pastebin.com/8q7UgXkJ ...and this is the data from the guest: http://pastebin.com/xLTYZjGp Best regards, Martin