> > opts="--randrepeat=1 --ioengine=rbd --direct=1 --numjobs=${numjobs}
> > --gtod_reduce=1 --name=test --pool=${pool} --rbdname=${vol} --invalidate=0
> > --bs=4k --iodepth=64 --time_based --runtime=$time --group_reporting"
> >
>
> So that "--numjobs" parameter is what I was referring to when I said
> multiple jobs will cause a huge performance it. This causes fio to open the
> same image X images, so with (nearly) each write operation, the
> exclusive-lock is being moved from client-to-client. Instead of multiple
> jobs against the same image, you should use multiple images.
ah, I see, didn't realize thant... thanks a lot for valuable info!
n.
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