On Wed, Jun 16, 2010 at 4:45 PM, Stefan Hajnoczi
<stefa...@linux.vnet.ibm.com> wrote:
> migrate_set_downtime
> --------------------
>
> Set maximum tolerated downtime (in seconds) for migrations.
>
> Arguments:
>
> - "value": maximum downtime (json-number)
>
> Example:
>
> -> { "execute": "migrate_set_downtime", "arguments": { "value": 0.1 } }
> <- { "return": {} }What are the semantics of this value? I imagine it has to do with the rate of transferring dirty pages and deciding when to suspend the machine to perform the final steps of migration. Is there a need to query this value, too? The ability to set the value is probably enough, I can't think of a situation where you need to query it rather than just setting a new value. Can this value be changed once migration is in progress? Stefan
