RE: Group reporting with latency and IOPS

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On Tue, Jan 29 2013, Neto, Antonio Jose Rodrigues wrote:
> atency: (clat) 577usecs - 0.577ms
> >
> >Correct too.
> >
> >> Am I doing the correct analysis?
> >
> >Yep.
> >
> >> One question is: Is it possible to have global IOPS and latency?
> >
> >You mean for both read and write combined? Fio does not report that, 
> >but for IOPS you could just add them. For latency, the larger of the two.
> >
> >--=20
> >Jens Axboe
> >
> 
> Hi Jens
> 
> This is neto from Brazil
> 
> How are you?
> 
> Thank you so much for your answer.
> 
> How can I have a combined IOPS reported?

You can't, at least not automatically. You would have to sum them up. It would not be hard to add at all, though, controlled by an option. I haven't had any requests for it before now, usually people ask for more fine grained metrics, not the other way around :-)

--
Jens Axboe

Thank you Jens, I understand. To have an option to group everything could be a good thing especially when you are doing a POC or demonstrating performance for a customer where they are interested in how many IOPS and total latency :-) 
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