Add zero_buffers option

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index aeb87ddb37cc59cdd057a56bd99ea9f901efbd68..2cc62b2221c6654fad9b577c445f7e89553e5d3c 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -285,6 +285,9 @@ bs_unaligned        If this option is given, any byte size value within bsrange
                may be used as a block range. This typically wont work with
                direct IO, as that normally requires sector alignment.
 
+zero_buffers   If this option is given, fio will init the IO buffers to
+               all zeroes. The default is to fill them with random data.
+
 nrfiles=int    Number of files to use for this job. Defaults to 1.
 
 openfiles=int  Number of files to keep open at the same time. Defaults to