Move memalign to lib/

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 2742fd7994ec9e148975b1ee62a827b4a4d31a5f..a534aa865d8c4a9384ebee3d823ecaaaf0fdfb3d 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -1064,11 +1064,14 @@ 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.
+rate_process=str       This option controls how fio manages rated IO
+               submissions. The default is 'linear', which submits IO in a
+               linear fashion with fixed delays between IOs that gets
+               adjusted based on IO completion rates. If this is set to
+               'poisson', fio will submit IO based on a more real world
+               random request flow, known as the Poisson process
+               (https://en.wikipedia.org/wiki/Poisson_process). The lambda
+               will be 10^6 / IOPS for the given workload.

 
 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_target=int     If set, fio will attempt to find the max performance
                point that the given workload will run at while maintaining a