X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=HOWTO;h=79d31dffde05e8002397b0771f2c87193f293c09;hp=6d215ac5378db68e6406182f9ff4c8e21c8b7dfb;hb=690adba373bb8c97a365c67da369e265953c4b4c;hpb=bb8895e07c6d6417410545f45d34b1b7916cd90a

diff --git a/HOWTO b/HOWTO
index 6d215ac5..79d31dff 100644
--- a/HOWTO
+++ b/HOWTO
@@ -223,7 +223,11 @@ bs=siint	The block size used for the io units. Defaults to 4k.
 bsrange=irange	Instead of giving a single block size, specify a range
 		and fio will mix the issued io block sizes. The issued
 		io unit will always be a multiple of the minimum value
-		given.
+		given (also see bs_unaligned).
+
+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.
 
 nrfiles=int	Number of files to use for this job. Defaults to 1.