diff --git a/hermit/usr/benchmarks/RCCE_pingping.c b/hermit/usr/benchmarks/RCCE_pingping.c
index 43c076e0f..7a61bd2da 100644
--- a/hermit/usr/benchmarks/RCCE_pingping.c
+++ b/hermit/usr/benchmarks/RCCE_pingping.c
@@ -25,8 +25,8 @@
 #undef  _CACHE_WARM_UP_
 #undef  _ERROR_CHECK_
 
-#define MAXBUFSIZE  1024*1024*4
-#define DEFAULTLEN  1024
+#define MAXBUFSIZE  1024*1024*64
+#define DEFAULTLEN  1024*1024
 #define NUMROUNDS   10000
 
 
diff --git a/hermit/usr/benchmarks/RCCE_pingpong.c b/hermit/usr/benchmarks/RCCE_pingpong.c
index a9d12577a..8724b1fc1 100644
--- a/hermit/usr/benchmarks/RCCE_pingpong.c
+++ b/hermit/usr/benchmarks/RCCE_pingpong.c
@@ -26,8 +26,8 @@
 #undef  _USE_SEPARATED_BUFFERS_
 #undef  _ERROR_CHECK_
 
-#define MAXBUFSIZE  1024*1024*4
-#define DEFAULTLEN  1024
+#define MAXBUFSIZE  1024*1024*64
+#define DEFAULTLEN  1024*1024
 #define NUMROUNDS   10000