[PATCH] Support for mmap of hugetlb files as memory backing
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/HOWTO b/HOWTO
index 6ac744c..f5e2449 100644
--- a/HOWTO
+++ b/HOWTO
@@ -362,6 +362,10 @@
mmap Use anonymous memory maps as the buffers.
Allocated through mmap(2).
+ mmaphuge Use a memory mapped huge file as the buffer
+ backing. Append filename after mmaphuge, ala
+ mem=mmaphuge:/hugetlbfs/file
+
The area allocated is a function of the maximum allowed
bs size for the job, multiplied by the io depth given.