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SubjectRe: [PATCH 03/12] Export unusable free space index via /proc/pagetypeinfo
On 02/12/2010 07:00 AM, Mel Gorman wrote:
> Unusuable free space index is a measure of external fragmentation that
> takes the allocation size into account. For the most part, the huge page
> size will be the size of interest but not necessarily so it is exported
> on a per-order and per-zone basis via /proc/pagetypeinfo.
> The index is normally calculated as a value between 0 and 1 which is
> obviously unsuitable within the kernel. Instead, the first three decimal
> places are used as a value between 0 and 1000 for an integer approximation.
> Signed-off-by: Mel Gorman<>

Acked-by: Rik van Riel <>

All rights reversed.

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