Merge branch 'eta_overflow' of https://github.com/sitsofe/fio

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 563ca933e699828274de1171d512262d5be9f68c..78fa6ccf4a61e623a44c0e1137f46cc416382ee8 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -173,7 +173,16 @@ Command line options
 .. option:: --eta=when
 
        Specifies when real-time ETA estimate should be printed.  `when` may be
-       `always`, `never` or `auto`.
+       `always`, `never` or `auto`. `auto` is the default, it prints ETA
+       when requested if the output is a TTY. `always` disregards the output
+       type, and prints ETA when requested. `never` never prints ETA.
+
+.. option:: --eta-interval=time
+
+       By default, fio requests client ETA status roughly every second. With
+       this option, the interval is configurable. Fio imposes a minimum
+       allowed time to avoid flooding the console, less than 250 msec is
+       not supported.
 
 .. option:: --eta-newline=time