Add option latency_run to continue enable latency_target

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 430c7b62bff8e28c40065cb8ac877579c2325a99..f0b4ffe436d768e83f97a4a0fdbf16e7294ceffa 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -2551,6 +2551,13 @@ I/O latency
        defaults to 100.0, meaning that all I/Os must be equal or below to the value
        set by :option:`latency_target`.
 
+.. option:: latency_run=bool
+
+       Used with :option:`latency_target`. If false (default), fio will find
+       the highest queue depth that meets :option:`latency_target` and exit. If
+       true, fio will continue running and try to meet :option:`latency_target`
+       by adjusting queue depth.
+
 .. option:: max_latency=time
 
        If set, fio will exit the job with an ETIMEDOUT error if it exceeds this