[PATCH] 'null' ioengine

[fio.git] / README

diff --git a/README b/README
index 04ff1eef18a36867e133f1c0a948936e3cc26e34..01cc19e9d69cf752ced1bb40b3709d5e2d78d121 100644 (file)
--- a/README
+++ b/README
@@ -90,7 +90,9 @@ The job file parameters are:
                        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.
+                       usb-storage or sata/libata driven) devices. Fio also
+                       has a null io engine, which is mainly used for testing
+                       fio itself.
        iodepth=x       For async io, allow 'x' ios in flight
        overwrite=x     If 'x', layout a write file first.
        nrfiles=x       Spread io load over 'x' number of files per job,