[CRIU] Remote lazy-restore design discussion

Adrian Reber adrian at lisas.de
Mon Apr 11 03:21:44 PDT 2016


On Mon, Apr 11, 2016 at 01:15:52PM +0300, Pavel Emelyanov wrote:
[...]
> >> When available for read, it gets request for particular pagemap and pops one
> >> up in the queue.
> > 
> > How many pages are you planning to send upon request? The entire sequence
> > that contains the faulted page, just the page that was requested, or, say,
> > the page that was requested plus two pages before and two pages after?
> 
> That's good question and it deserves separate long discussion :) I would start
> with requesting a single page.

David Gilbert, who worked on the QEMU post-copy implementation, told us
that that was one of tricks done for QEMU, that not only the page
requested is been transmitted, but also the following pages assuming
that the process probably will need those pages soon.

		Adrian


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