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Re: [Xen-devel] Measuring migration downtime
- To: "Anthony Liguori" <aliguori@xxxxxxxxxx>
- From: harish <mvharish@xxxxxxxxx>
- Date: Fri, 9 Jun 2006 11:43:33 -0700
- Cc: Arun Babu <arunbabu.n@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
- Delivery-date: Fri, 09 Jun 2006 11:43:54 -0700
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Could you pls suggest any benchmarks that might have been used in the past to do exactly this? thanks hmv
On 6/8/06, Anthony Liguori <
aliguori@xxxxxxxxxx> wrote: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
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