On 08/07/2012 08:31 AM, Mel Gorman wrote:
If allocation fails after compaction then compaction may be deferred for a number of allocation attempts. If there are subsequent failures, compact_defer_shift is increased to defer for longer periods. This patch uses that information to scale the number of pages reclaimed with compact_defer_shift until allocations succeed again. Signed-off-by: Mel Gorman<mgorman@xxxxxxx>
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