Re: latency percentiles labels in fio minimal output

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Hi Joseph,

On 6 June 2018 at 19:40, Gruher, Joseph R <joseph.r.gruher@xxxxxxxxx> wrote:
> Hi folks-
>
> When using FIO minimal output such as this output example (from FIO v3.6):
>
> 3;fio-3.6;1m-sr-01-01-32;0;0;150288384;2503763;2444;60025;0;17189;114.724224;942.095768;0;33799;12973.415812;9008.249487;1.000000%=0;5.000000%=0;10.000000%=173;20.000000%=3358;30.000000%=6586;40.000000%=9764;50.000000%=12648;60.000000%=16187;70.000000%=19267;80.000000%=22675;90.000000%=25821;95.000000%=27394;99.000000%=28704;99.500000%=28966;99.900000%=29229;99.950000%=29491;99.990000%=32112;0%=0;0%=0;0%=0;0;33799;13088.507365;9021.958807;671744;1828428;49.297242%;1234286.100000;498063.813528;0;0;0;0;0;0;0.000000;0.000000;0;0;0.000000;0.000000;1.000000%=0;5.000000%=0;10.000000%=0;20.000000%=0;30.000000%=0;40.000000%=0;50.000000%=0;60.000000%=0;70.000000%=0;80.000000%=0;90.000000%=0;95.000000%=0;99.000000%=0;99.500000%=0;99.900000%=0;99.950000%=0;99.990000%=0;0%=0;0%=0;0%=0;0;0;0.000000;0.000000;0;0;0.000000%;0.000000;0.000000;2.967146%;23.249034%;175862;0;8208;0.1%;0.1%;0.1%;0.1%;0.1%;199.9%;0.0%;9.45%;0.01%;0.02%;0.03%;0.10%;0.16%;0.49%;0.77%;0.78%;0.79%;3.11%;6.25%;18.77%;31.26%;28.03%;0.00%;0.00%;0.00%;0.00%;0.00%;0.00%;0.00%
>
> What's the point of having the latency percentiles labeled in the output data, such as:
>
> 99.000000%=28704;99.500000%=28966;99.900000%=29229;99.950000%=29491;99.990000%=32112

If memory serves those boundaries are actually user definable (see
http://fio.readthedocs.io/en/latest/fio_doc.html#cmdoption-arg-percentile-list
) so I would guess they appear in the header to ensure you know what
they were set to...

-- 
Sitsofe | http://sucs.org/~sits/
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