Add support for using '-' as filename for stdin/stdout
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/HOWTO b/HOWTO
index 7cab053..08a2b68 100644
--- a/HOWTO
+++ b/HOWTO
@@ -211,7 +211,9 @@
ioengine is file based, you can specify a number of files
by seperating the names with a ':' colon. So if you wanted
a job to open /dev/sda and /dev/sdb as the two working files,
- you would use filename=/dev/sda:/dev/sdb
+ you would use filename=/dev/sda:/dev/sdb. '-' is a reserved
+ name, meaning stdin or stdout. Which of the two depends
+ on the read/write direction set.
opendir=str Tell fio to recursively add any file it can find in this
directory and down the file system tree.