diff --git a/kernel/freelist/free_performance/Malloc_free_performance.cpp b/kernel/freelist/free_performance/Malloc_free_performance.cpp
index 7731248d..dcef3ac8 100644
--- a/kernel/freelist/free_performance/Malloc_free_performance.cpp
+++ b/kernel/freelist/free_performance/Malloc_free_performance.cpp
@@ -216,7 +216,7 @@ HWTEST_F(MallocFreePerformance, freeperformance0100, Function | MediumTest | Lev
         for (int j = 0; j < CLUSTER_SIZE; ++j) {
             ptr[j] = malloc(g_sizes[index]);
             if (!ptr[j]) {
-                printf("Malloc size of %u byte(s) failed: %s\n", g_sizes[index], strerror(errno));
+                printf("Malloc size of %zu byte(s) failed: %s\n", g_sizes[index], strerror(errno));
             }
             ++index;
             index %= SIZE_ARR_SIZE;
diff --git a/kernel/freelist/malloc_pressure/Malloc_pressure.cpp b/kernel/freelist/malloc_pressure/Malloc_pressure.cpp
index bf50c6b9..63e12e2f 100644
--- a/kernel/freelist/malloc_pressure/Malloc_pressure.cpp
+++ b/kernel/freelist/malloc_pressure/Malloc_pressure.cpp
@@ -63,7 +63,7 @@ HWTEST_F(MallocPressure, pressureTest0100, Function | MediumTest | Level1)
         for (size_t size = 0; size < THRESHOLD; size += SIZE_ALIGN + 1) {
             void *ptr = malloc(size);
             if (!ptr) {
-                printf("Malloc failed for size %u\n", size);
+                printf("Malloc failed for size %zu\n", size);
                 ASSERT_TRUE(true) << "malloc error = " << errno;
             }
             free(ptr);