RE: Blktrace replay in FIO runs only 1 Job when numjobs>1 in FIO

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(please don't top-post)

> On Wed, Dec 4, 2013 at 11:04 AM, Lakshmi <sendtold@xxxxxxxxx> wrote:

> > I ran this job and while this job was running I ran a  Blktrace and
> > parsed it to a .bin file.
> >
> > The actual FIO run showed the results of all 8 jobs as below,

> > However when I replay the .bin trace using read_iolog, the result
> > shows only 1 job's results as below,

multiple fio jobs are entirely a user-mode concept and blktrace is operating in the kernel. It doesn't know about what's submitting i/o requests, only that they're all going to /dev/sdb (or whatever). (Check the man page for blktrace.)

z!

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