[PATCH] Add 'bs_unaligned' option

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 6d215ac5378db68e6406182f9ff4c8e21c8b7dfb..79d31dffde05e8002397b0771f2c87193f293c09 100644 (file)
--- 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.