On 8/15/14, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > 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 OK. > a bit less controversial than the new kernel aio APIs, and keeping the > two separate is a good idea in general. Exactly, the two should be perfect pair for loop block, IMO. Thanks, -- Ming Lei -- 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
