Re: [Qemu-devel] [RFC] find_next_bit optimizations

[Stefan Hajnoczi]

On Mon, Mar 11, 2013 at 02:44:03PM +0100, Peter Lieven wrote:
> I ever since had a few VMs which are very hard to migrate because of a lot of 
> memory I/O. I found that finding the next dirty bit
> seemed to be one of the culprits (apart from removing locking which Paolo is 
> working on).
> 
> I have to following proposal which seems to help a lot in my case. Just 
> wanted to have some feedback.

Hi Peter,
Do you have any performance numbers for this patch?  I'm just curious
how big the win is.

Stefan