From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:45868) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ROrD6-0001P9-9l for qemu-devel@nongnu.org; Fri, 11 Nov 2011 08:32:04 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ROrD5-0005rE-9d for qemu-devel@nongnu.org; Fri, 11 Nov 2011 08:32:00 -0500 Received: from lo.gmane.org ([80.91.229.12]:52356) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ROrD5-0005qx-18 for qemu-devel@nongnu.org; Fri, 11 Nov 2011 08:31:59 -0500 Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1ROrD3-0001I1-7f for qemu-devel@nongnu.org; Fri, 11 Nov 2011 14:31:57 +0100 Received: from 93-34-178-161.ip50.fastwebnet.it ([93.34.178.161]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 11 Nov 2011 14:31:57 +0100 Received: from pbonzini by 93-34-178-161.ip50.fastwebnet.it with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 11 Nov 2011 14:31:57 +0100 From: Paolo Bonzini Date: Fri, 11 Nov 2011 14:31:43 +0100 Message-ID: References: <20111111130320.GK8472@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit In-Reply-To: <20111111130320.GK8472@redhat.com> Subject: Re: [Qemu-devel] Long QEMU main loop pauses during migration (to file) under heavy load List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: libvir-list@redhat.com On 11/11/2011 02:03 PM, Daniel P. Berrange wrote: > Or perhaps moving migration to a separate thread, out of the mainloop > is what we need to strive for ? Yes, this is planned. This way the I/O does not even need to be non-blocking. Patches have been posted (and I have up-to-date versions) that should work except for block migration. Paolo