On 12/5/18 1:24 PM, Mike Snitzer wrote: > Hi, > > This v3 adds "block: stop passing 'cpu' to all percpu stats methods" > before switching over to percpu counters. I gave this a shot, with the hope of being able to use it for blk-mq as well. The tldr is that it's still slower than the tag iteration, but that isn't a show stopper for a generic implementation. But unfortunately it fails for queue size results, iostat just shows 0 for the average queue size. -- Jens Axboe
