siint range parsing HOWTO update

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 24beeb8adbd5fa1363d7305c279b6c0d288275c8..c8a84ae9d591eb1c813bee5a820a349463c9d16a 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -176,6 +176,8 @@ siint       SI integer. A whole number value, which may contain a postfix
        meaning kilo, mega, and giga. So if you want to specify 4096,
        you could either write out '4096' or just give 4k. The postfixes
        signify base 2 values, so 1024 is 1k and 1024k is 1m and so on.
+       If the option accepts an upper and lower range, use a colon ':'
+       or minus '-' to seperate such values. See irange.
 bool   Boolean. Usually parsed as an integer, however only defined for
        true and false (1 and 0).
 irange Integer range with postfix. Allows value range to be given, such
@@ -211,6 +213,9 @@ filename=str        Fio normally makes up a filename based on the job name,
                a job to open /dev/sda and /dev/sdb as the two working files,
                you would use filename=/dev/sda:/dev/sdb
 
+opendir=str    Tell fio to recursively add any file it can find in this
+               directory and down the file system tree.
+
 rw=str         Type of io pattern. Accepted values are:
 
                        read            Sequential reads
@@ -234,6 +239,11 @@ size=siint The total size of file io for this job. This may describe
                size if larger than the current file size. If this parameter
                is not given and the file exists, the file size will be used.
 
+filesize=siint 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 'size' in total (if that is given). If not
+               given, each created file is the same size.
+
 bs=siint       The block size used for the io units. Defaults to 4k. Values
                can be given for both read and writes. If a single siint is
                given, it will apply to both. If a second siint is specified
@@ -358,6 +368,10 @@ overwrite=bool     If writing to a file, setup the file first and do overwrites.
 
 end_fsync=bool If true, fsync file contents when the job exits.
 
+fsync_on_close=bool    If true, fio will fsync() a dirty file on close.
+               This differs from end_fsync in that it will happen on every
+               file close, not just at the end of the job.
+
 rwmixcycle=int Value in milliseconds describing how often to switch between
                reads and writes for a mixed workload. The default is
                500 msecs.