Update documentation on zero_buffers / scramble_buffers

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 725214fb4d14a0b2d0099f0106a8e2ad6822e7eb..0f9c0fc28bd4dfff82c07d35411203e47ed379aa 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -519,6 +519,8 @@ bs_is_seq_rand      If this option is set, fio will use the normal read,write
 
 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.
+               The resulting IO buffers will not be completely zeroed,
+               unless scramble_buffers is also turned off.
 
 refill_buffers If this option is given, fio will refill the IO buffers
                on every submit. The default is to only fill it at init