On Wed, 27 May 2020 15:41:48 -0400 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. Yup. I hope [1/3] and [2/3] weren't urgent? Due to a horrid merge mismatchmishmashmess I've staged them behind lots of other things, notably thp/khugepaged improvements and CoW semantics http://lkml.kernel.org/r/20200416160026.16538-1-kirill.shutemov@xxxxxxxxxxxxxxx and mm: memcontrol: charge swapin pages on instantiation http://lkml.kernel.org/r/20200508183105.225460-1-hannes@xxxxxxxxxxx and mm: balance LRU lists based on relative thrashing http://lkml.kernel.org/r/20200520232525.798933-1-hannes@xxxxxxxxxxx
