gunicorn: show total gunicorn execution time, and worker counter base on the gunicorn_conf.py

configs/gunicorn_config.py

@@ -119,16 +119,16 b' def child_exit(server, worker):'
 
 
 def pre_request(worker, req):
-    return
-    worker.log.debug("[<%-10s>] PRE WORKER: %s %s",
-                     worker.pid, req.method, req.path)
+    worker.start_time = time.time()
+    worker.log.debug(
+        "GNCRN PRE WORKER: %s %s", req.method, req.path)
 
 
 def post_request(worker, req, environ, resp):
-    return
-    worker.log.debug("[<%-10s>] POST WORKER: %s %s resp: %s", worker.pid,
-                     req.method, req.path, resp.status_code)
-
+    total_time = time.time() - worker.start_time
+    worker.log.debug(
+        "GNCRN POST WORKER [cnt:%s]: %s %s resp: %s, Load Time: %.3fs",
+        worker.nr, req.method, req.path, resp.status_code, total_time)
 
 
 class RhodeCodeLogger(Logger):