On 07/04/2017 02:55 PM, Brian King wrote: > On 07/01/2017 11:43 AM, Jens Axboe wrote: >> Now: >> >> http://git.kernel.dk/cgit/linux-block/commit/?h=mq-inflight&id=87f73ef2b9edb6834001df8f7cb48c7a116e8cd3 >> >>> And updated the branch here: >>> >>> http://git.kernel.dk/cgit/linux-block/log/?h=mq-inflight >>> >>> to include that, and be based on top of for-4.13/block. If you prefer just >>> pulling a branch, pull: >>> >>> git://git.kernel.dk/linux-block mq-inflight >> >> I've tested it, and made a few adjustments and fixes. The branches are >> the same, just rebased. Works fine for me, even with partitions now. >> >> Let me know how it works for you. > > This is looking very nice. This is what I'm seeing now: > > 1 null_blk device / 80 submit_queues / fio numjobs=80 > 9.4M IOPs > > 80 null_blk devices / 1 submit_queue per null_blk / fio numjobs=1 (1 per null_blk) > 9.3M IOPs > > 1 null_blk device / 160 submit_queues / fio numjobs=160 > 9.8M IOPs > > 160 null_blk devices / 1 submit_queue per null_blk / fio numjobs=1 (1 per null_blk) > 8.9M IOPs > > What is queued in mq-inflight looks to resolve the issue I've been seeing. Good to hear! I'll test some corner cases and post a "real" version for review. Thanks for all your testing. -- Jens Axboe
