'new_group' option

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 8e873ea5117628b18089f86cfa0e38fbeb2a0ccd..d8c09d07aa40ddb4829c79a0a30b60a4f0c4b1f7 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -539,7 +539,13 @@ verify=str If writing to a file, fio can verify the file contents
 
 stonewall      Wait for preceeding jobs in the job file to exit, before
                starting this one. Can be used to insert serialization
-               points in the job file.
+               points in the job file. A stone wall also implies starting
+               a new reporting group.
+
+new_group      Start a new reporting group. If this option isn't given,
+               jobs in a file will be part of the same reporting group
+               unless seperated by a stone wall (or if it's a group
+               by itself, with the numjobs option).
 
 numjobs=int    Create the specified number of clones of this job. May be
                used to setup a larger number of threads/processes doing