Re: [Qemu-devel] [RFC PATCH v1: 11/12] mc: register MC qemu-file functions and expose MC tunable capability

[Isaku Yamahata]

On Wed, Nov 06, 2013 at 11:34:25AM -0500,
"Michael R. Hines" <address@hidden> wrote:

> On 10/23/2013 07:00 AM, Isaku Yamahata wrote:
> >Since more integer parameters would come in the future, so how about
> >set_migrate_parameter similar to set_migrate_capability?
> >It sets integer value, while set_migrate_capability sets bool value.
>
> That's a very good idea, I think - but we might get some pushback
> from the list.

Maybe. Actually we already have three configurable parameters.
bandwith_limit, xbzrle_cache_size, max_downtime.
They can be all consolidated.


> There is a hesitation to add such low-level parameters, but for
> something like
> micro-checkpointing that may potentially have large impacts on
> application performance,
> I do think it would be critical to expose more customizability
> like 'set_migrate_parameter' to management software.
> 
> In fact, this separation of function may be "better" than continuing
> to expand
> the list of individual commands in the QEMU monitor.
> 
> Could you submit a patch for the framework of such a command?

Sure.
-- 
Isaku Yamahata <address@hidden>