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SubjectRe: [RFC v5 2/3] mm: make optimistic check for swapin readahead
On Mon, Sep 14, 2015 at 02:33:55PM -0700, Andrew Morton wrote:
> On Mon, 14 Sep 2015 22:31:44 +0300 Ebru Akagunduz <ebru.akagunduz@gmail.com> wrote:
>
> > This patch introduces new sysfs integer knob
> > /sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_swap
> > which makes optimistic check for swapin readahead to
> > increase thp collapse rate. Before getting swapped
> > out pages to memory, checks them and allows up to a
> > certain number. It also prints out using tracepoints
> > amount of unmapped ptes.
>
> We we please get this control documented?
> Documentation/vm/transhuge.txt appears to be the place for it.

I will add annotation about max_swap_ptes to doc and send it with new patch.

Kind regards,
Ebru


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