:art Two fold memory block size

diff --git a/util b/util
index 9fc31d5c612b64091484bdc559a6e58883766aa3..70a59fd35cc35eeea9ae88b5dc0205f58ba17fa0 160000 (submodule)
--- a/util
+++ b/util
@@ -1 +1 @@
-Subproject commit 9fc31d5c612b64091484bdc559a6e58883766aa3
+Subproject commit 70a59fd35cc35eeea9ae88b5dc0205f58ba17fa0