Support for setting rated based on IOPS

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index c8a84ae9d591eb1c813bee5a820a349463c9d16a..c14039318175c6170dbec9c3c7be55d80ff16801 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -418,7 +418,16 @@ thinktime_blocks
 rate=int       Cap the bandwidth used by this job to this number of KiB/sec.
 
 ratemin=int    Tell fio to do whatever it can to maintain at least this
 rate=int       Cap the bandwidth used by this job to this number of KiB/sec.
 
 ratemin=int    Tell fio to do whatever it can to maintain at least this

-               bandwidth.
+               bandwidth. Failing to meet this requirement, will cause
+               the job to exit.
+
+rate_iops=int  Cap the bandwidth to this number of IOPS. Basically the same
+               as rate, just specified independently of bandwidth. If the
+               job is given a block size range instead of a fixed value,
+               the smallest block size is used as the metric.
+
+rate_iops_min=int If fio doesn't meet this rate of IO, it will cause
+               the job to exit.

 
 ratecycle=int  Average bandwidth for 'rate' and 'ratemin' over this number
                of milliseconds.
 
 ratecycle=int  Average bandwidth for 'rate' and 'ratemin' over this number
                of milliseconds.