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 from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
