Merge branch 'patch-1' of https://github.com/Nikratio/fio

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index f9e7c8572041fee4f95a46ce08cceffc13cb0f94..c72ec8cd0125139c06298a782aa97304cc75e8a4 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -1886,11 +1886,12 @@ I/O size
 
 .. option:: filesize=irange(int)
 
-       Individual file sizes. May be a range, in which case fio will select sizes
-       for files at random within the given range and limited to :option:`size` in
-       total (if that is given). If not given, each created file is the same size.
-       This option overrides :option:`size` in terms of file size, which means
-       this value is used as a fixed size or possible range of each file.
+       Individual file sizes. May be a range, in which case fio will select sizes for
+       files at random within the given range. If not given, each created file is the
+       same size. This option overrides :option:`size` in terms of file size, i.e. if
+       :option:`filesize` is specified then :option:`size` becomes merely the default
+       for :option:`io_size` and has no effect at all if :option:`io_size` is set
+       explicitly.
 
 .. option:: file_append=bool