Re: [PATCH 0/3] Virtual huge zero page

H. Peter Anvin
2012-10-01T17:37:32Z

On 10/01/2012 10:36 AM, Kirill A. Shutemov wrote:
> On Mon, Oct 01, 2012 at 10:33:12AM -0700, H. Peter Anvin wrote:
>> Overall, I'm okay with either as long as we don't lock down 2 MB when
>> there isn't a huge zero page in use.
>
> Is shinker-reclaimable huge zero page okay for you?
>

Yes, I'm fine with that. However, I'm curious about the relative
benefit versus virtual hzp from a performance perspective, on an
application where hzp actually matters.

One can otherwise argue that if hzp doesn't matter for except in a small
number of cases that we shouldn't use it at all.

-hpa