Messages in this thread | | | Date | Fri, 15 Aug 2014 06:11:37 -0700 | From | Christoph Hellwig <> | Subject | Re: [PATCH v1 0/9] block & aio: kernel aio and loop mq conversion |
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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.
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