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 <mgor...@techsingularity.net> -- Mel Gorman SUSE Labs