On 1/18/24 11:04 AM, Jens Axboe wrote: > With that in place, the same test case now does: > > Device QD Jobs IOPS Contention Diff > ============================================================= > null_blk 4 32 2250K 28% +106% > nvme0n1 4 32 2560K 23% +112% nvme0n1 4 32 2560K 23% +139% Apparently I can't math, this is a +139% improvement for the nvme case... Just wanted to make it clear that the IOPS number was correct, it's just the diff math that was wrong. -- Jens Axboe