- 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.