[PATCH] init.c: Expose f_out and f_err to loaded libraries via dlsym()

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index de4b0a9932b43f207260a569a5e33349efebc63b..745e9c72906a378fe1c5fb3818b3ab139834d633 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -289,6 +289,11 @@ ioengine=str       Defines how the job issues io to the file. The following
                                or receive, if the latter only the port
                                argument is used.
 
                                or receive, if the latter only the port
                                argument is used.
 

+                       external Prefix to specify loading an external
+                               IO engine object file. Append the engine
+                               filename, eg ioengine=external:/tmp/foo.o
+                               to load ioengine foo.o in /tmp.
+

 iodepth=int    This defines how many io units to keep in flight against
                the file. The default is 1 for each file defined in this
                job, can be overridden with a larger value for higher
 iodepth=int    This defines how many io units to keep in flight against
                the file. The default is 1 for each file defined in this
                job, can be overridden with a larger value for higher