On 12/18/2013 01:17 AM, Johannes Weiner wrote: > Updated version with your tmpfs __GFP_PAGECACHE parts added and > documentation, changelog updated as necessary. I remain unconvinced > that tmpfs pages should be round-robined, but I agree with you that it > is the conservative change to do for 3.12 and 3.12 and we can figure > out the rest later. I sure hope that this doesn't drive most people > on NUMA to disable pagecache interleaving right away as I expect most > tmpfs workloads to see little to no reclaim and prefer locality... :/ Actually, I suspect most tmpfs heavy workloads will be things like databases with shared memory segments. Those tend to benefit from having all of the system's memory bandwidth available. The worker threads/processes tend to live all over the system, too... -- All rights reversed -- 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>