Re: [PATCH v5 00/11] Introduce huge zero page

H. Peter Anvin
2012-11-14T23:51:22Z

On 11/14/2012 03:32 PM, Andrew Morton wrote:
>
> The current code does the latter, by freeing the page via a
> "slab"-shrinker callback.
>
> But I do suspect that with the right combination of use/unuse and
> memory pressure, we could still get into the high-frequency scenario.
>

There probably isn't any mechanism that doesn't end up with poor results
in some corner case... just like the vhzp variant.

-hpa