linux-kernel - [PATCH 0/3] mm: dirty/accessed pte optimisations

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Message-Id: <20180828112034.30875-1-npiggin@gmail.com>
Date:   Tue, 28 Aug 2018 21:20:31 +1000
From:   Nicholas Piggin <npiggin@...il.com>
To:     linux-mm@...ck.org
Cc:     Nicholas Piggin <npiggin@...il.com>, linux-arch@...r.kernel.org,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [PATCH 0/3] mm: dirty/accessed pte optimisations

Here are some patches that didn't get much comment last time. It
looks like x86 might benefit too though, so that might get people
interested. 

I improved changelogs and added some comments, but no real logic
changes.

I hope I didn't get the x86 numbers wrong, they're more significant
than I expected so it could quite well be a problem with my test
(corrections welcome). Any data from other archs would be interesting
too.

Andrew perhaps if there aren't objections these could go in mm for
a while. 

Thanks,
Nick

Nicholas Piggin (3):
  mm/cow: don't bother write protectig already write-protected huge
    pages
  mm/cow: optimise pte dirty/accessed bits handling in fork
  mm: optimise pte dirty/accessed bit setting by demand based pte
    insertion

 mm/huge_memory.c | 24 +++++++++++++++---------
 mm/memory.c      | 18 ++++++++++--------
 mm/vmscan.c      |  8 ++++++++
 3 files changed, 33 insertions(+), 17 deletions(-)

-- 
2.18.0