diff --git a/usr.sbin/gstat/gstat.8 b/usr.sbin/gstat/gstat.8
--- a/usr.sbin/gstat/gstat.8
+++ b/usr.sbin/gstat/gstat.8
@@ -97,6 +97,28 @@
 .It Fl p
 Only display physical providers (those with rank of 1).
 .El
+.Sh INTERACTIVE COMMANDS
+These commands are currently recognized if
+.Nm
+is not running in batch mode:
+.Bl -tag -width indent
+.It Ic <
+Halve the update interval.
+.It Ic >
+Double the update interval.
+.It Ic c
+Toggle display of
+.Xr geom 4
+consumers.
+.It Ic f
+Display only devices with the names matching regular expression filter
+(prompt for filter).
+.It Ic F
+Remove device filter.
+.It Ic q
+Quit
+.Nm .
+.El
 .Sh EXIT STATUS
 .Ex -std
 .Sh SEE ALSO