[sheepdog] [PATCH] dog/farm: multi-thread cluster snapshot, save process

[Liu Yuan]

On Fri, Aug 08, 2014 at 05:11:55PM +0800, Liu Yuan wrote:
> On Fri, Aug 08, 2014 at 05:02:48PM +0800, Ruoyu wrote:
> > Will the operation affect VM?
> > If yes, it would be better to let user choose it.
> 
> I guess yes. probably 'save --hard' will try this multi-thread.
> 
> Thanks
> Yuan

For a second thought, I don't think we need --hard option, because

- we use WQ_DYNAMIC which means that only 2 * nr_nodes threads created for the
  whole cluster, no stress.

- 'cluster snapshot load' already use WQ_DYNAMIC
- more options means more confusion to users.

Thanks
Yuan