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

[Kai Huang <dev.kai.huang@xxxxxxxxx>]

On Mon, Jan 13, 2014 at 7:19 PM, Adel Amani <adel.amani66@xxxxxxxxx> wrote:
> 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?

I believe you need to add code by yourself to print out the bitmap.

> Is there a particular name for Downtime in xen_domain_save ?
> how i can see Downtime in Output?

Not sure if there's already code to meet your requirement, probably
you also need to do some hack to print out the downtime.

Thanks,
-Kai
>
>
> 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
>
>>
>>
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@xxxxxxxxxxxxx
>> http://lists.xen.org/xen-devel
>
>>
>
>

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