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Re: [Xen-devel][PATCH] don't split the whole large page while live migration with EPT



On 16/04/2009 13:51, "Tim Deegan" <Tim.Deegan@xxxxxxxxxx> wrote:

> At 13:47 +0100 on 16 Apr (1239889668), Xin, Xiaohui wrote:
>> We haven't measure the performance yet.
> 
> But you're planning to? :)

This would be definitely be a prerequisite for taking this patch. Our
suspicion is that 2MB pages will be too coarse grained for many workloads,
and we'll end up retransmitting superpages where only a handful of 4kB
sub-pages are actually dirtied.

 -- Keir



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