From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: QEMU P2P migration speed Date: Wed, 05 Feb 2014 08:27:29 +0100 Message-ID: <52F1E7E1.5040607@redhat.com> References: <52F11E1C.8060608@xdel.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit To: Andrey Korolyov , kvm@vger.kernel.org Return-path: Received: from mail-qc0-f171.google.com ([209.85.216.171]:37178 "EHLO mail-qc0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751065AbaBEH1f (ORCPT ); Wed, 5 Feb 2014 02:27:35 -0500 Received: by mail-qc0-f171.google.com with SMTP id n7so16321qcx.30 for ; Tue, 04 Feb 2014 23:27:34 -0800 (PST) In-Reply-To: <52F11E1C.8060608@xdel.ru> Sender: kvm-owner@vger.kernel.org List-ID: 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