Re: [PATCH] Hugepages should be accounted as unevictable pages.

Dave Hansen
2009-06-23T22:16:00Z

On Tue, 2009-06-23 at 14:42 -0700, Alok Kataria wrote:
> One thing that i forgot to mention earlier is that, I just need a way to
> provide a hint about the total locked memory on the system and it
> doesn't need to be the exact number at that point in time.
>
> Lee, due to this reason lazy culling of unevictable pages is fine too.
>
> Hugepages, similar to mlocked pages, are special because the user could
> specify how much memory it wants to reserve for this purpose. So that
> needs to be taken into consideration i.e it cannot be calculated in some
> way.

Could you just teach the thing to which you are hinting that it also
needs to go look in sysfs for huge page counts? Or, is there a
requirement that it come out of a single meminfo field?

-- Dave