X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=HOWTO;h=c3dd964a17b50af152f152fb808d1bffdc950c57;hb=a40e7a5977547cbde62dbf1650cba4778a132f69;hp=16c5ae3163074fcb08a6caca741cb78a0b56c29b;hpb=a94aedbc11829470cce77eb52969601d618054d6;p=fio.git

diff --git a/HOWTO b/HOWTO
index 16c5ae31..c3dd964a 100644
--- a/HOWTO
+++ b/HOWTO
@@ -1882,6 +1882,22 @@ I/O engine
 			mounted with DAX on a persistent memory device through the PMDK
 			libpmem library.
 
+		**ime_psync**
+			Synchronous read and write using DDN's Infinite Memory Engine (IME).
+			This engine is very basic and issues calls to IME whenever an IO is
+			queued.
+
+		**ime_psyncv**
+			Synchronous read and write using DDN's Infinite Memory Engine (IME).
+			This engine uses iovecs and will try to stack as much IOs as possible
+			(if the IOs are "contiguous" and the IO depth is not exceeded)
+			before issuing a call to IME.
+
+		**ime_aio**
+			Asynchronous read and write using DDN's Infinite Memory Engine (IME).
+			This engine will try to stack as much IOs as possible by creating
+			requests for IME. FIO will then decide when to commit these requests.
+
 I/O engine specific parameters
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~