Messages in this thread |  | | Date | Fri, 25 Aug 2017 09:04:37 +0100 | From | Mel Gorman <> | Subject | Re: [PATCH v2 0/3] Separate NUMA statistics from zone statistics |
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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 <mgorman@techsingularity.net>
-- Mel Gorman SUSE Labs
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