Re: Populating multiple ptes at fault time

[KOSAKI Motohiro]

> Jeremy Fitzhardinge wrote:
> > Thanks, that was exactly what I was hoping to see.  I didn't see any
> > definitive statements against the patch set, other than a concern that
> > it could make things worse.  Was the upshot that no consensus was
> > reached about how to detect when its beneficial to preallocate anonymous
> > pages?
> 
> There were multiple discussions on the subject. The consensus was that it was
> difficult to generalize this and it would only work on special loads. Plus it
> would add some overhead to the general case.

but at that time, x86_64 large server doesn't exist yet.
I think mesurement again is valuable because typical server environment
is changed in these days.



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