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SubjectRe: [PATCH v2 0/3] Separate NUMA statistics from zone statistics
On Thu, Aug 24, 2017 at 05:59:58PM +0800, Kemi Wang wrote:
> Each page allocation updates a set of per-zone statistics with a call to
> zone_statistics(). As discussed in 2017 MM summit, these are a substantial
> source of overhead in the page allocator and are very rarely consumed. This
> significant overhead in cache bouncing caused by zone counters (NUMA
> associated counters) update in parallel in multi-threaded page allocation
> (pointed out by Dave Hansen).

For the series;

Acked-by: Mel Gorman <>

Mel Gorman

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