Re: [Xen-devel] Help about live migration VM

[Adel Amani <adel.amani66@xxxxxxxxx>]

Downtime it mean's The total downtime consists of the time necessary to quiesce the VM on the source, transfer the device state to the destination, load the device state, and copy over all the remaining memory pages concurrently with loading the device state.

how i can print bitmap in Output? or how i can see bitmap in Output?

Is there a particular name for Downtime in xen_domain_save ?

how i can see Downtime in Output?

 

Adel Amani

M.Sc. Candidate@Computer Engineering Department, University of Isfahan

Email: A.Amani@xxxxxxxxxxxx

On Monday, January 13, 2014 4:03 AM, Kai Huang <dev.kai.huang@xxxxxxxxx> wrote:

On Sun, Jan 12, 2014 at 1:40 AM, Adel Amani <adel.amani66@xxxxxxxxx> wrote:
> Hello Mr Dunlap
> I really wonder of anybody know answer :-(
> can you help me?!
> I want found time "Downtime" and number "dirty pages" in end migration ...

What do you mean by "Downtime", and "in end migration"? Migration will
take several rounds to transfer dirty pages. If you want to know
exactly how many pages are dirty during each stage, you can get the
dirty page bitmap in xc_domain_save, which will be called for each
live migration stage.

Thanks,
-Kai

> please help me.
> Thanks.
>
> Adel Amani
> M.Sc. Candidate@Computer Engineering Department, University of Isfahan
> Email: A.Amani@xxxxxxxxxxxx
>
>
> On Saturday, January 11, 2014 12:31 AM, Adel Amani <adel.amani66@xxxxxxxxx>
> wrote:
> Hello
> I do one migration and trace in migration to command "xentrace -D -e all -S
> 256 /test.trace"
> I can get total time migration of command "time migration -l ubuntu11
> 192.168.1.1"  But i don't know how get "Downtime" and "dirty pages" of
> test.trace :-(  or from another way...
>
> Adel Amani
> M.Sc. Candidate@Computer Engineering Department, University of Isfahan
> Email: A.Amani@xxxxxxxxxxxx

>
>
>
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> http://lists.xen.org/xen-devel

>

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