In fio.1 and HOWTO, add link to Poisson process in wikipedia

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 81217b77906a6956d1e6bd8ebd70c2986dbb6348..f8b488faac91285682cb9a9027b9ddaa7ecc804a 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -1064,6 +1064,12 @@ rate_iops_min=int If fio doesn't meet this rate of IO, it will cause
                the job to exit. The same format as rate is used for read vs
                write separation.
 
                the job to exit. The same format as rate is used for read vs
                write separation.
 

+rate_poisson=bool      Real world random request flow follows Poisson process
+               (https://en.wikipedia.org/wiki/Poisson_process). With
+               rate_poisson=1, fio tries to simulate request flow under Poisson
+               process (instead of even distribution, which is the default).
+               Default: false.
+

 latency_target=int     If set, fio will attempt to find the max performance
                point that the given workload will run at while maintaining a
                latency below this target. The values is given in microseconds.
 latency_target=int     If set, fio will attempt to find the max performance
                point that the given workload will run at while maintaining a
                latency below this target. The values is given in microseconds.