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SubjectRe: [PATCH] Add a page cache-backed balloon device driver.
On Tue, Sep 11, 2012 at 12:10:18AM +0300, Michael S. Tsirkin wrote:
> > On the plus side, having an exit taken here on each page turns out to
> > be relatively cheap, as the vmexit from the page fault should be
> > faster to process as it is fully handled within the host kernel.
> >
> > Perhaps some combination of both methods is required? I'm not sure :\
>
> Perhaps some benchmarking is in order :)
> Can you try telling host, potentially MADV_WILL_NEED
> in that case like qemu does, then run your proprietary test
> and see if things work well enough?

Ping. Had a chance to try that?

--
MST


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