On Fri, Aug 15, 2014 at 08:59:56PM +0800, Ming Lei wrote: > Your concern is right, previous I thought that mq conversion wouldn't improve > throughput, but I did ignore workqueue's concurrency management, it > turns out blk-mq conversion can improvment throughput close to 10 times in > my test(loop over virtio-blk which is backed by one image on SSD). It is like > POSIX style AIO after mq conversion thanks to workqueue, and I need to > update the performance data in V2. > > Actually kernel AIO needn't such high concurrency. Can you juse send a loop blk-mq conversion for now? I think that's a bit less controversial than the new kernel aio APIs, and keeping the two separate is a good idea in general. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
