diff --git a/Hyper_tuner/testdemo/cache/cache_hit/cache_hit.c b/Hyper_tuner/testdemo/cache/cache_hit/cache_hit.c
index 9acf96be957b47d94bfb5ddf37b8fafba60e3732..a64641e2e3e0c5e7c26c5e8d3690f3a082416784 100644
--- a/Hyper_tuner/testdemo/cache/cache_hit/cache_hit.c
+++ b/Hyper_tuner/testdemo/cache/cache_hit/cache_hit.c
@@ -23,8 +23,8 @@ gcc -g cache_hit.c -o cache_hit
 #include <stdlib.h>
 #include <sys/time.h>
 
-#define ROW (10 * 1024)
-#define COL (10 * 1024)
+#define ROW (20 * 1024)
+#define COL (20 * 1024)
 #define N   (ROW * COL)