From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1M79Rc-0003Ku-Ta for qemu-devel@nongnu.org; Thu, 21 May 2009 10:40:28 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1M79RY-0003GA-7A for qemu-devel@nongnu.org; Thu, 21 May 2009 10:40:28 -0400 Received: from [199.232.76.173] (port=53367 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1M79RX-0003Fw-W4 for qemu-devel@nongnu.org; Thu, 21 May 2009 10:40:24 -0400 Received: from mx2.redhat.com ([66.187.237.31]:35700) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1M79RX-0005De-Hk for qemu-devel@nongnu.org; Thu, 21 May 2009 10:40:23 -0400 Message-ID: <4A1567D3.2090902@redhat.com> Date: Thu, 21 May 2009 17:40:19 +0300 From: Avi Kivity MIME-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH] augment info migrate with page status References: <1242861605-12844-1-git-send-email-glommer@redhat.com> <4A152B51.2080600@redhat.com> <20090521135218.GA24584@poweredge.glommer> In-Reply-To: <20090521135218.GA24584@poweredge.glommer> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Glauber Costa Cc: aliguori@us.ibm.com, Dor Laor , qemu-devel@nongnu.org Glauber Costa wrote: >> Alternately it can be parametrized by the monitor command. >> > With this, I completely disagree. Let us say we switch in the future to a > new migration algorithm that does not rely on any treshold at all. What > should we do with this parameter? > > This is totally implementation dependant, and should not be exposed. > the bandwidth is what we want to control externally. > We want to control bandwidth and application downtime. Why not specify those as parameters? qemu will live migrate using the specified bandwidth until it reaches a page count that allows it to stop the guest and complete migration within the allowed downtime. -- error compiling committee.c: too many arguments to function