diff --git a/cpp/httpclientpool.cc b/cpp/httpclientpool.cc
index f76a29b..2c2883c 100644
--- a/cpp/httpclientpool.cc
+++ b/cpp/httpclientpool.cc
@@ -135,12 +135,22 @@ namespace f8
             switch (node->method) {
             case 1:
                 {
+                    long long begin_tick = a8::XGetTickCount();
                     ret = a8::http::Get(finally_url, response, &node->headers, 10);
+                    long long end_tick = a8::XGetTickCount();
+                    if (end_tick - begin_tick > f8::HttpClientPool::Instance()->max_request_delay) {
+                        f8::HttpClientPool::Instance()->max_request_delay = end_tick - begin_tick;
+                    }
                     break;
                 }
             case 2:
                 {
+                    long long begin_tick = a8::XGetTickCount();
                     ret = a8::http::Post(finally_url.c_str(), node->content, response, &node->headers, 10);
+                    long long end_tick = a8::XGetTickCount();
+                    if (end_tick - begin_tick > f8::HttpClientPool::Instance()->max_request_delay) {
+                        f8::HttpClientPool::Instance()->max_request_delay = end_tick - begin_tick;
+                    }
                     break;
                 }
             default:
diff --git a/cpp/httpclientpool.h b/cpp/httpclientpool.h
index ca47d3c..df6e766 100644
--- a/cpp/httpclientpool.h
+++ b/cpp/httpclientpool.h
@@ -13,6 +13,9 @@ namespace f8
         HttpClientPool() {};
         friend class a8::Singleton<HttpClientPool>;
 
+    public:
+        volatile long long max_request_delay = 0;
+
     public:
         void Init(int thread_num);
         void UnInit();