doc: provide more detail regarding the --status-interval option

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 2a70b7c629b6d6470625ac98e02dad555571f1ed..34386daae2ac2784c031c94f00a5a4cddc884456 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -182,8 +182,10 @@ Command line options
 
 .. option:: --status-interval=time
 
-       Force full status dump every `time` period passed.  When the unit is
-       omitted, the value is interpreted in seconds.
+       Force a full status dump of cumulative (from job start) values at `time`
+       intervals. This option does *not* provide per-period measurements. So
+       values such as bandwidth are running averages. When the time unit is omitted,
+       `time` is interpreted in seconds.
 
 .. option:: --section=name