Update ramp_time

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 634a599a26112cec97cd27987ae7cc3911dabbb4..5e5b212b1ad28d5e83d4f64bab7a109521a65d5d 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -580,7 +580,10 @@ time_based If set, fio will run for the duration of the runtime
 ramp_time=time If set, fio will run the specified workload for this amount
                of time before logging any performance numbers. Useful for
                letting performance settle before logging results, thus
-               minimizing the runtime required for stable results.
+               minimizing the runtime required for stable results. Note
+               that the ramp_time is considered lead in time for a job,
+               thus it will increase the total runtime if a special timeout
+               or runtime is specified.
 
 invalidate=bool        Invalidate the buffer/page cache parts for this file prior
                to starting io. Defaults to true.