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Erwan is a Senior Engineer at eNovance. His work is focused on OpenStack, Benchmarking, Performance Tuning and System deployment. While not being in front of his computer, he's out for Kiting, Playing with RC Toys (Cars or Planes), cooking home bread, taking care of bees or sipping old Rhums.

8 Responses

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  3. Harsh Desai
    Harsh Desai at | | Reply

    Hi Erwan,

    I have started using fio for some of my IO benchmarking projects. So far I am using the inbuilt fio_generate_plots tool to plot basic bandwidth and latency graphs. However, the graphs I get seem pretty basic compared to the examples you have posted.

    How can I install fio2gnuplot? I did some some searching and did not find any resources.

  4. Harsh Desai
    Harsh Desai at | | Reply

    Thanks for the explanation Erwan. I have started using fio2gnuplot and for single thread (numjobs=1) fio configs, the results are accurate.

    Have you tried running fio2gnuplot for multiple threads i.e numjobs=4? I am getting garbled/unclear plots. The commands I am using is:

    fio2gnuplot.py -g -i
    fio2gnuplot.py -g -b

  5. Yuhan
    Yuhan at | | Reply

    Hi Erwan,
    regarding the results it is very sad you did not make some deeper analysis.
    If you can explain me what motivate you to use data destructive cspline and bezier smoothing instead of standard filtering tools I would be happy to read you !
    May be you ran an fft on your results and results were not relevant ?

    I encourage you to make a second post focused on true analysis.
    Thanks again for sharing your data.

    Yuhan.

    ps: sharing raw data would be awesome

  6. FIO: Bench IO disks | Deimosfr Blog

    […] You also can look at the nice eNovance blog post on it. […]

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