From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony Liguori Subject: Re: Measuring migration downtime Date: Thu, 08 Jun 2006 19:57:56 -0500 Message-ID: <4488C793.4000503@us.ibm.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Arun Babu Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Arun Babu wrote: > Hi, > I need to get the exact downtime for doing a live migration with ms > precision. > (I am not bothered about whole migration time which is close to 1 > minute.. I need to measure > the live migration downtime during which the DomU is out of service.. > the figure quoted in the xen > documentation says it as ~60 ms.. ) > I hope someone must have tried to measure this before. If you run a benchmark against the server, and measure the server's throughput at a high granularity and graph it, it should show you the interval that it was down for. I think that is the most realistic way to do this. Regards, Anthony Liguori > Can you suggest me ideas to measure this? > > Thank you, > Arun > ------------------------------------------------------------------------ > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel >