On Sat, 2017-08-05 at 14:56 +0800, Ming Lei wrote: > In Red Hat internal storage test wrt. blk-mq scheduler, we > found that I/O performance is much bad with mq-deadline, especially > about sequential I/O on some multi-queue SCSI devcies(lpfc, qla2xxx, > SRP...) Hello Ming and Jens, There may not be enough time left to reach agreement about the whole patch series before the kernel v4.14 merge window opens. How about focusing on patches 1..8 of this series for kernel v4.14 and revisiting the rest of this patch series later? Thanks, Bart.