On 08/18/2014 10:03 AM, John OCallaghan wrote:
Hi All
A question on usage of fio. I would like to be able to spin up more than
one fio instance running on the same platform concurrently.
For example, I would like to run one fio instance in time_based mode
doing some stuff. And after a fixed period of time then start a non-time
based fio instance doing some other stuff.
I have tried it out and to my untrained eyes it looks like its going OK.
But I'd love to hear from others with more experience in this area. Is
this something that is recommended?
Will my data skew in some way because fio expects there to be only one
instance of itself playing at any one time?
Any advice would be much appreciated!
Different processes shouldn't run into any issues unless you're doing a
job with
verification in which case you'll end up with verify errors due to jobs
overwriting each
other's data.
Unless you want to use multiple processes for some reason versus jobs
inside a single
process - you can delay one of your multiple jobs starting using the
startdelay=N
parameter in the jobfile.
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