[PATCH] Add exec_prerun/exec_postrun options

[fio.git] / README

diff --git a/README b/README
index f6094a62f2d84e63289fb60ce1b90da82fc737d3..aec8207ce27c980e70ebbdb49abffc4af7e0a9f1 100644 (file)
--- a/README
+++ b/README
@@ -19,6 +19,11 @@ meta data as well. You can download them here:
 
 http://brick.kernel.dk/snaps/
 
+Pascal Bleser <guru@unixtech.be> has fio RPMs in his repository, you
+can find them here:
+
+http://linux01.gwdg.de/~pbleser/rpm-navigation.php?cat=System/fio
+
 
 Options
 -------
@@ -41,13 +46,20 @@ The <jobs> format is as follows:
        directory=x     Use 'x' as the top level directory for storing files
        rw=x            'x' may be: read, randread, write, randwrite,
                        rw (read-write mix), randrw (read-write random mix)
+       rwmixcycle=x    Base cycle for switching between read and write
+                       in msecs.
+       rwmixread=x     'x' percentage of rw mix ios will be reads. If
+                       rwmixwrite is also given, the last of the two will
+                        be used if they don't add up to 100%.
+       rwmixwrite=x    'x' percentage of rw mix ios will be writes. See
+                       rwmixread.
        size=x          Set file size to x bytes (x string can include k/m/g)
        ioengine=x      'x' may be: aio/libaio/linuxaio for Linux aio,
                        posixaio for POSIX aio, sync for regular read/write io,
-                       mmap for mmap'ed io, or sgio for direct SG_IO io. The
-                       latter only works on Linux on SCSI (or SCSI-like
-                       devices, such as usb-storage or sata/libata driven)
-                       devices.
+                       mmap for mmap'ed io, splice for using splice/vmsplice,
+                       or sgio for direct SG_IO io. The latter only works on
+                       Linux on SCSI (or SCSI-like devices, such as
+                       usb-storage or sata/libata driven) devices.
        iodepth=x       For async io, allow 'x' ios in flight
        overwrite=x     If 'x', layout a write file first.
        prio=x          Run io at prio X, 0-7 is the kernel allowed range
@@ -73,6 +85,7 @@ The <jobs> format is as follows:
        bwavgtime=x     Average bandwidth stats over an x msec window.
        create_serialize=x      If 'x', serialize file creation.
        create_fsync=x  If 'x', run fsync() after file creation.
+       end_fsync=x     If 'x', run fsync() after end-of-job.
        loops=x         Run the job 'x' number of times.
        verify=x        If 'x' == md5, use md5 for verifies. If 'x' == crc32,
                        use crc32 for verifies. md5 is 'safer', but crc32 is
@@ -91,7 +104,15 @@ The <jobs> format is as follows:
                        rw, offset, length
                        where with rw=0/1 for read/write, and the offset
                        and length entries being in bytes.
-
+       write_iolog=x   Write an iolog to file 'x' in the same format as iolog.
+                       The iolog options are exclusive, if both given the
+                       read iolog will be performed.
+       lockmem=x       Lock down x amount of memory on the machine, to
+                       simulate a machine with less memory available. x can
+                       include k/m/g suffix.
+       nice=x          Run job at given nice value.
+       exec_prerun=x   Run 'x' before job io is begun.
+       exec_postrun=x  Run 'x' after job io has finished.
 
 Examples using a job file
 -------------------------