On Thu, Oct 06, 2016 at 01:49:43PM -0400, Vivek Goyal wrote: > Paolo, CFQ is legacy now and if we can come up with a proportional > IO mechanism which works reasonably well with fast devices using > blk-mq interfaces, that will be much more interesting.
CFQ is not legacy yet. Until we've got scheduling in blk-mq and converted all the existing users over to blk-mq it's still going to be something that affects real, production systems that don't have any other meaningful option.
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