Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [PATCH 2/5] Light Fragmentation Avoidance V20: 002_usemap | Date | Wed, 16 Nov 2005 00:36:53 +0100 |
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On Tuesday 15 November 2005 17:49, Mel Gorman wrote: > This patch adds a "usemap" to the allocator. Each bit in the usemap indicates > whether a block of 2^(MAX_ORDER-1) pages are being used for kernel or > easily-reclaimed allocations. This enumerates two types of allocations;
This will increase cache line footprint, which is costly. Why can't this be done in the page flags?
-Andi
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