X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=HOWTO;h=79d31dffde05e8002397b0771f2c87193f293c09;hp=ae19834f84fccd56f86feab0c2a9abf0b99c897f;hb=c7c280ed2e4f836bd8e9e125d55d097539b70e21;hpb=c2b1e753ca7abaca7f177cb1ca5087ca3971542b

diff --git a/HOWTO b/HOWTO
index ae19834f..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.
 
@@ -284,6 +288,13 @@ rwmixwrite=int	How large a percentage of the mix should be writes. If both
 		up to 100%, the latter of the two will be used to override
 		the first.
 
+norandommap	Normally fio will cover every block of the file when doing
+		random IO. If this option is given, fio will just get a
+		new random offset without looking at past io history. This
+		means that some blocks may not be read or written, and that
+		some blocks may be read/written more than once. This option
+		is mutually exclusive with verify= for that reason.
+
 nice=int	Run the job with the given nice value. See man nice(2).
 
 prio=int	Set the io priority value of this job. Linux limits us to