From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrey Korolyov Subject: Re: QEMU P2P migration speed Date: Wed, 05 Feb 2014 14:46:53 +0400 Message-ID: <52F2169D.9080806@xdel.ru> References: <52F11E1C.8060608@xdel.ru> <52F1E7E1.5040607@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit To: Paolo Bonzini , kvm@vger.kernel.org Return-path: Received: from mail-lb0-f179.google.com ([209.85.217.179]:65450 "EHLO mail-lb0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751511AbaBEKq6 (ORCPT ); Wed, 5 Feb 2014 05:46:58 -0500 Received: by mail-lb0-f179.google.com with SMTP id l4so162269lbv.24 for ; Wed, 05 Feb 2014 02:46:56 -0800 (PST) In-Reply-To: <52F1E7E1.5040607@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 02/05/2014 11:27 AM, Paolo Bonzini wrote: > Il 04/02/2014 18:06, Andrey Korolyov ha scritto: >> Migration time is almost independent of VM RSS(varies by ten percent at >> maximum), for situation when VM is active on target host, time is about >> 85 seconds to migrate 8G between hosts, and when it is turned off, >> migration time *increasing* to 120s. For curious ones, frequency >> management is completely inactive on both nodes, neither CStates >> mechanism. Interconnection is relatively fast (20+Gbit/s by IPoIB). > > What version of QEMU? > > Paolo Ancie.. ehm, stable - 1.1.2 from wheezy. Should I try 1.6/1.7?