Documentation update

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

diff --git a/HOWTO b/HOWTO
index 7db02b1e5a6758a5930bde67e4b6d8a030364239..b284c428dd80bad0ecdaf42c3bbfe378e5ddad13 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -346,7 +346,9 @@ size=int    The total size of file io for this job. Fio will run until
                limited by other options (such as 'runtime', for instance).
                Unless specific nrfiles and filesize options are given,
                fio will divide this size between the available files
-               specified by the job.
+               specified by the job. If not set, fio will use the full
+               size of the given files or devices. If the the files
+               do not exist, size must be given.
 
 filesize=int   Individual file sizes. May be a range, in which case fio
                will select sizes for files at random within the given range

diff --git a/fio.1 b/fio.1
index cabff41e0fa21377edc4818681ca36c9cea66c74..190da4fa66f38af46a92f63a7ba0fc6c56c1b912 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -199,7 +199,9 @@ are likely to be issued. Default: true.
 Total size of I/O for this job.  \fBfio\fR will run until this many bytes have
 been transfered, unless limited by other options (\fBruntime\fR, for instance).
 Unless \fBnr_files\fR and \fBfilesize\fR options are given, this amount will be
-divided between the available files for the job.
+divided between the available files for the job. If not set, fio will use the
+full size of the given files or devices. If the the files do not exist, size
+must be given.
 .TP
 .BI fill_device \fR=\fPbool
 Sets size to something really large and waits for ENOSPC (no space left on