Re: [PATCH resend 3/3] mm: fix LRU balancing effect of new transparent huge pages

[Shakeel Butt]

On Wed, May 27, 2020 at 12:42 PM Johannes Weiner <hannes@xxxxxxxxxxx> wrote:
>
> On Wed, May 27, 2020 at 11:29:58AM -0700, Shakeel Butt wrote:
> > From: Johannes Weiner <hannes@xxxxxxxxxxx>
> >
> > Currently, THP are counted as single pages until they are split right
> > before being swapped out. However, at that point the VM is already in
> > the middle of reclaim, and adjusting the LRU balance then is useless.
> >
> > Always account THP by the number of basepages, and remove the fixup
> > from the splitting path.
> >
> > Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
> > Signed-off-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
>
> This is now already in mm as part of the "mm: balance LRU lists based
> on relative thrashing" series that I sent out last week and where it
> was originally from.

Oh sorry, I missed it.