diff --git a/base/size_test.c b/base/size_test.c
new file mode 100644
index 0000000..da5aa3e
--- /dev/null
+++ b/base/size_test.c
@@ -0,0 +1,15 @@
+#include <stdio.h>
+
+/**
+ * quicklist lzf 压缩对象
+ * */
+typedef struct quicklistLZF {
+	unsigned int sz; /* LZF size in bytes*/
+    char compressed[];
+} quicklistLZF;
+
+int main()
+{
+	printf("size=%d\n", sizeof(quicklistLZF));
+	return 0;
+}