On Tue, 21 Jun 2016 15:15:55 +0100 Mel Gorman <mgor...@techsingularity.net> wrote:
> Reclaim makes decisions based on the number of pages that are mapped > but it's mixing node and zone information. Account NR_FILE_MAPPED and > NR_ANON_PAGES pages on the node. <wading through rejects> Boy, the difference between __mod_zone_page_state(page_zone(page), ... and __mod_node_page_state(page_pgdat(page), ... is looking subtle. When and why to use one versus the other. I'm not seeing any explanation of this in there but haven't yet looked hard.