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Re: [RFC v5 2/3] mm: make optimistic check for swapin readahead

From Andrew Morton <akpm@linux-foundation.org>
Newsgroups linux.kernel
Subject Re: [RFC v5 2/3] mm: make optimistic check for swapin readahead
Date 2015-09-14 23:40 +0200
Message-ID <q8JDI-1AN-9@gated-at.bofh.it> (permalink)
References <q8HLz-7lZ-7@gated-at.bofh.it> <q8HLz-7lZ-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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.

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Thread

[RFC v5 2/3] mm: make optimistic check for swapin readahead Ebru Akagunduz <ebru.akagunduz@gmail.com> - 2015-09-14 21:40 +0200
  Re: [RFC v5 2/3] mm: make optimistic check for swapin readahead Rik van Riel <riel@redhat.com> - 2015-09-14 21:50 +0200
  Re: [RFC v5 2/3] mm: make optimistic check for swapin readahead Andrew Morton <akpm@linux-foundation.org> - 2015-09-14 23:40 +0200
    Re: [RFC v5 2/3] mm: make optimistic check for swapin readahead Ebru Akagunduz <ebru.akagunduz@gmail.com> - 2015-09-15 22:10 +0200

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