Messages in this thread |  | | Date | Mon, 30 Jan 2012 10:47:18 +0000 | From | Mel Gorman <> | Subject | Re: [PATCH v3 -mm 3/3] mm: only defer compaction for failed order and higher |
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On Thu, Jan 26, 2012 at 03:01:02PM -0500, Rik van Riel wrote: > Currently a failed order-9 (transparent hugepage) compaction can > lead to memory compaction being temporarily disabled for a memory > zone. Even if we only need compaction for an order 2 allocation, > eg. for jumbo frames networking. > > The fix is relatively straightforward: keep track of the highest > order at which compaction is succeeding, and only defer compaction > for orders at which compaction is failing. > > Signed-off-by: Rik van Riel <riel@redhat.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
-- Mel Gorman SUSE Labs
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