On Wed, Jun 22, 2016 at 04:40:39PM +0200, Michal Hocko wrote: > On Tue 21-06-16 15:15:58, Mel Gorman wrote: > > As reclaim is now node-based, it follows that page write activity > > due to page reclaim should also be accounted for on the node. For > > consistency, also account page writes and page dirtying on a per-node > > basis. > > > > After this patch, there are a few remaining zone counters that may > > appear strange but are fine. NUMA stats are still per-zone as this is a > > user-space interface that tools consume. NR_MLOCK, NR_SLAB_*, NR_PAGETABLE, > > NR_KERNEL_STACK and NR_BOUNCE are all allocations that potentially pin > > low memory and cannot trivially be reclaimed on demand. This information > > is still useful for debugging a page allocation failure warning. > > As I've said in other patch. I think we will need to provide > /proc/nodeinfo to fill the gap. > I added a patch on top that prints the node stats in zoneinfo but only once for the first populated zone in a node. Doing this or creating a new file are both potentially surprising but extending zoneinfo means there is a greater chance that a user will spot the change. -- Mel Gorman SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>