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    SubjectRe: [PATCH v2 04/10] Add additional isolation mode
    On 05/29/2011 02:13 PM, Minchan Kim wrote:
    > There are some places to isolate lru page and I believe
    > users of isolate_lru_page will be growing.
    > The purpose of them is each different so part of isolated pages
    > should put back to LRU, again.
    > The problem is when we put back the page into LRU,
    > we lose LRU ordering and the page is inserted at head of LRU list.
    > It makes unnecessary LRU churning so that vm can evict working set pages
    > rather than idle pages.
    > This patch adds new modes when we isolate page in LRU so we don't isolate pages
    > if we can't handle it. It could reduce LRU churning.
    > This patch doesn't change old behavior. It's just used by next patches.
    > Cc: KOSAKI Motohiro<>
    > Cc: Mel Gorman<>
    > Cc: Rik van Riel<>
    > Cc: Andrea Arcangeli<>
    > Cc: Johannes Weiner<>
    > Cc: KAMEZAWA Hiroyuki<>
    > Signed-off-by: Minchan Kim<>

    Acked-by: Rik van Riel <>

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      Last update: 2011-06-01 17:59    [W:0.039 / U:138.040 seconds]
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