From 7750aac43ee4e0c001860426e6fdaf22d9ddfc76 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Fri, 14 Mar 2014 19:41:07 -0600 Subject: [PATCH] Update documentation on zero_buffers / scramble_buffers Signed-off-by: Jens Axboe --- HOWTO | 2 ++ fio.1 | 2 ++ 2 files changed, 4 insertions(+) diff --git a/HOWTO b/HOWTO index 725214fb..0f9c0fc2 100644 --- 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 diff --git a/fio.1 b/fio.1 index 2dee56b5..20f0c093 100644 --- a/fio.1 +++ b/fio.1 @@ -430,6 +430,8 @@ blocksize setting. .TP .B zero_buffers Initialise buffers with all zeros. Default: fill buffers with random data. +The resulting IO buffers will not be completely zeroed, unless +\fPscramble_buffers\fR is also turned off. .TP .B refill_buffers If this option is given, fio will refill the IO buffers on every submit. The -- 2.25.1