Messages in this thread | | | Date | Tue, 27 Oct 2009 14:18:34 -0400 | From | Rik van Riel <> | Subject | Re: [PATCH 3/3] vmscan: Force kswapd to take notice faster when high-order watermarks are being hit |
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On 10/27/2009 09:40 AM, Mel Gorman wrote: > When a high-order allocation fails, kswapd is kicked so that it reclaims > at a higher-order to avoid direct reclaimers stall and to help GFP_ATOMIC > allocations. Something has changed in recent kernels that affect the timing > where high-order GFP_ATOMIC allocations are now failing with more frequency, > particularly under pressure. This patch forces kswapd to notice sooner that > high-order allocations are occuring. > > Signed-off-by: Mel Gorman<mel@csn.ul.ie>
Reviewed-by: Rik van Riel <riel@redhat.com>
-- All rights reversed.
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