Hi 何蒙,
Thanks for your reply, your explain on latency_window is excellent.
The docs says it "will attempt to find the max performance point",
but it doesn't say any attempt to make some changed to fit in the
latency_target.
Thanks
Larry
On 04/11/2018 03:28 PM, 何蒙 wrote:
Hi Larry
It is my understanding that:
If latency_target=100ms, latency_target=90, fio will attempt to make
90% of all IOs lower than latency_target，
If lantency_window=1s，fio will calculate all IOs in the 1st second，if
don't meet the target (90% latency less than 100ms)
fio will do some changes to meet the target in next seconde.
2018-04-11 14:48 GMT+08:00 Larry Chen <lchen@xxxxxxxx
<mailto:lchen@xxxxxxxx>>:
Hi list,
I referred to the docs and examples but I'm still hard to
understand how to use latency_target, latency_window and
latency_percentile.
Could any one help explain it in detail?
Thanks in advance
Sorry for that this letter might be resent to the list because my
misoperation of subscribing fio mail list.
Regards,
Larry
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