Mention GUASI in the HOWTO for the ioengine= option

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/HOWTO b/HOWTO
index d8c09d07aa40ddb4829c79a0a30b60a4f0c4b1f7..76613714a14a063b4adc3133ee954f2b966748aa 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -330,6 +330,14 @@ ioengine=str       Defines how the job issues io to the file. The following
                                will cause that job to do nothing but burn
                                85% of the CPU.
 
+                       guasi   The GUASI IO engine is the Generic Userspace
+                               Asyncronous Syscall Interface approach
+                               to async IO. See
+
+                               http://www.xmailserver.org/guasi-lib.html
+
+                               for more info on GUASI.
+
                        external Prefix to specify loading an external
                                IO engine object file. Append the engine
                                filename, eg ioengine=external:/tmp/foo.o