Documentation update
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/HOWTO b/HOWTO
index 8f73208..2be845c 100644
--- a/HOWTO
+++ b/HOWTO
@@ -546,7 +546,9 @@
rwmixwrite=int How large a percentage of the mix should be writes. If both
rwmixread and rwmixwrite is given and the values do not add
up to 100%, the latter of the two will be used to override
- the first.
+ the first. This may interfere with a given rate setting,
+ if fio is asked to limit reads or writes to a certain rate.
+ If that is the case, then the distribution may be skewed.
norandommap Normally fio will cover every block of the file when doing
random IO. If this option is given, fio will just get a