On Thu, Jan 04, 2018 at 09:00:12AM +0100, Christoph Hellwig wrote: > The changes were sponsored by Scylladb, and improve performance > of the seastar framework up to 10%, while also removing the need > for a privileged SCHED_FIFO epoll listener thread. Due to the current events: With KPTI enabled the aio poll code is almost 16% faster than epoll with the special SCHED_FIFO listener thread. The Scylladb https example is still more than 4% faster with KPTI and aio poll vs non-KPTI with epoll.
