diff --git a/util/RTCContext.cpp b/util/RTCContext.cpp
index 5d89de0..66d95d4 100644
--- a/util/RTCContext.cpp
+++ b/util/RTCContext.cpp
@@ -93,6 +93,9 @@ void RTCContext::onAudioProcess(const char* roomId, const char* peerId,
 
         auto ptmp = (PyObject*(*)(int, npy_intp*, int))numpyApi_[93];
         std::cout << "ptmp is:" << ptmp << std::endl;
+        std::cout << "Pointer sizes:\n"
+                  << "void*: " << sizeof(void*) << "\n"
+                  << "FunctionPtr: " << sizeof(PyObject*(*)(int, npy_intp*, int)) << std::endl;
 
         // 2. 使用memcpy避免编译器优化问题
         PyArray_SimpleNew_t PyArray_SimpleNew;