Re: [Qemu-devel] [PATCH 0/4] Image Streaming API

[Stefan Hajnoczi]

On Tue, Aug 30, 2011 at 4:19 AM, Zhi Yong Wu <address@hidden> wrote:
> On Tue, Aug 23, 2011 at 8:58 PM, Stefan Hajnoczi
> <address@hidden> wrote:
>> These patches put in place the image streaming QMP/HMP commands and
>> documentation.  Image streaming itself is not implemented by this patch 
>> series
>> but the HMP/QMP commands that libvirt uses are implemented to return
>> NotSupported.
>>
>> The Image Streaming API can be used to copy the contents of a backing file 
>> into
>> the image file while the guest is running.  The API is described on the wiki:
>> http://wiki.qemu.org/Features/LiveBlockMigration/ImageStreamingAPI
>
> If query-block-jobs returns one percent value, it will be more
> readable and convenient for users.

QMP is not a human interface.  Although a percentage value is good for
progress bars, the absolute value is also interesting in terms of how
much work is being done.  By providing an end value and a current
value the management tool can display either or both.

Stefan