Add sample job file showing how to read backwards

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 67fd83376fd3beffe1bf62e0e204981f2815eff9..ab25cb2796ddafeec8b375fe832c61825238fe81 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -329,18 +329,15 @@ directory=str     Prefix filenames with this directory. Used to place files
 filename=str   Fio normally makes up a filename based on the job name,
                thread number, and file number. If you want to share
                files between threads in a job or several jobs, specify
-               a filename for each of them to override the default. If
-               the ioengine used is 'net', the filename is the host, port,
-               and protocol to use in the format of =host,port,protocol.
-               See ioengine=net for more. If the ioengine is file based, you
-               can specify a number of files by separating the names with a
-               ':' colon. So if you wanted a job to open /dev/sda and /dev/sdb
-               as the two working files, you would use
-               filename=/dev/sda:/dev/sdb. On Windows, disk devices are
-               accessed as \\.\PhysicalDrive0 for the first device,
-               \\.\PhysicalDrive1 for the second etc. Note: Windows and
-               FreeBSD prevent write access to areas of the disk containing
-               in-use data (e.g. filesystems).
+               a filename for each of them to override the default.
+               If the ioengine is file based, you can specify a number of
+               files by separating the names with a ':' colon. So if you
+               wanted a job to open /dev/sda and /dev/sdb as the two working
+               files, you would use filename=/dev/sda:/dev/sdb. On Windows,
+               disk devices are accessed as \\.\PhysicalDrive0 for the first
+               device, \\.\PhysicalDrive1 for the second etc. Note: Windows
+               and FreeBSD prevent write access to areas of the disk
+               containing in-use data (e.g. filesystems).
                If the wanted filename does need to include a colon, then
                escape that with a '\' character. For instance, if the filename
                is "/dev/dsk/foo@3,0:c", then you would use
@@ -752,7 +749,7 @@ ioengine=str        Defines how the job issues io to the file. The following
 
                        cpuio   Doesn't transfer any data, but burns CPU
                                cycles according to the cpuload= and
-                               cpucycle= options. Setting cpuload=85
+                               cpuchunks= options. Setting cpuload=85
                                will cause that job to do nothing but burn
                                85% of the CPU. In case of SMP machines,
                                use numjobs=<no_of_cpu> to get desired CPU
@@ -1067,7 +1064,8 @@ nice=int  Run the job with the given nice value. See man nice(2).
 
 prio=int       Set the io priority value of this job. Linux limits us to
                a positive value between 0 and 7, with 0 being the highest.
-               See man ionice(1).
+               See man ionice(1). Refer to an appropriate manpage for
+               other operating systems since meaning of priority may differ.
 
 prioclass=int  Set the io priority class. See man ionice(1).