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    SubjectRe: [patch 3/8] mm: vmscan: save work scanning (almost) empty LRU lists
    On 12/12/2012 04:43 PM, Johannes Weiner wrote:
    > In certain cases (kswapd reclaim, memcg target reclaim), a fixed
    > minimum amount of pages is scanned from the LRU lists on each
    > iteration, to make progress.
    >
    > Do not make this minimum bigger than the respective LRU list size,
    > however, and save some busy work trying to isolate and reclaim pages
    > that are not there.
    >
    > Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>

    Reviewed-by: Rik van Riel <riel@redhat.com>



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