Merge branch 'latency_run' of https://github.com/liu-song-6/fio

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index cd6285524f392c0a911a2e133dd3d4b6b40aa371..9e71a6197bb47000db195fcdc5e09cc0f70b2d51 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -2552,6 +2552,13 @@ 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