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Re: [PATCH 5/5] mm, vmscan: Account for skipped pages as a partial scan

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On Thu, Jul 21, 2016 at 03:11:01PM +0100, Mel Gorman wrote:
> Page reclaim determines whether a pgdat is unreclaimable by examining how
> many pages have been scanned since a page was freed and comparing that to
> the LRU sizes. Skipped pages are not reclaim candidates but contribute to
> scanned. This can prematurely mark a pgdat as unreclaimable and trigger
> an OOM kill.
> 
> This patch accounts for skipped pages as a partial scan so that an
> unreclaimable pgdat will still be marked as such but by scaling the cost
> of a skip, it'll avoid the pgdat being marked prematurely.
> 
> Signed-off-by: Mel Gorman <mgorman@techsingularity.net>

Acked-by: Johannes Weiner <hannes@cmpxchg.org>

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[PATCH 5/5] mm, vmscan: Account for skipped pages as a partial scan Mel Gorman <mgorman@techsingularity.net> - 2016-07-21 16:20 +0200
  Re: [PATCH 5/5] mm, vmscan: Account for skipped pages as a partial  scan Johannes Weiner <hannes@cmpxchg.org> - 2016-07-22 18:10 +0200
  Re: [PATCH 5/5] mm, vmscan: Account for skipped pages as a partial  scan Minchan Kim <minchan@kernel.org> - 2016-07-25 10:40 +0200
    Re: [PATCH 5/5] mm, vmscan: Account for skipped pages as a partial  scan Mel Gorman <mgorman@techsingularity.net> - 2016-07-25 12:00 +0200

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