Add 'replay_time_scale' option

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 5c8623d2cd39ba61794e6674a94ed868494f38b0..68b6b82e3d6a7aad30a22211095eb0d6f0de1d07 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -2311,6 +2311,14 @@ I/O replay
        still respecting ordering. The result is the same I/O pattern to a given
        device, but different timings.
 
+.. option:: replay_time_scale=int
+
+       When replaying I/O with :option:`read_iolog`, fio will honor the
+       original timing in the trace. With this option, it's possible to scale
+       the time. It's a percentage option, if set to 50 it means run at 50%
+       the original IO rate in the trace. If set to 200, run at twice the
+       original IO rate. Defaults to 100.
+
 .. option:: replay_redirect=str
 
        While replaying I/O patterns using :option:`read_iolog` the default behavior