On Thu, Feb 10, 2022 at 4:53 PM Vincent Fu <vincent.fu@xxxxxxxxxxx> wrote: > I tried running with randrepeat=0 and saw the same behavior you did. With the default randrepeat=1 fio will always use the same random number seed for IO offsets, but even with randrepeat=0, rw=randread:8 always started at offset 0. > > I agree with your assessment that rw=randread:8 should start at a random offset. > > Vincent Thanks for the feedback on it. I'm slowly getting more comfortable with the fio source base; hoping to be familiar enough to find and quickly fix it soon.