diff --git a/jobmanager/jobmanager.py b/jobmanager/jobmanager.py
index 1873ab5..abfa37f 100644
--- a/jobmanager/jobmanager.py
+++ b/jobmanager/jobmanager.py
@@ -396,7 +396,7 @@ class JobManager_Client(object):
                  
                 # regular case, just stop working when empty job_q was found
                 except queue.Empty:
-                    if verbose > 1:
+                    if verbose > 0:
                         print("{}: finds empty job queue, processed {} jobs".format(identifier, cnt))
                     break
                 # handle SystemExit in outer try ... except
@@ -511,7 +511,7 @@ class JobManager_Client(object):
                 
         if verbose > 0:
             try:
-                print("{}: pure calculation time: {}".format(identifier, progress.humanize_time(time_calc) ))
+                print("{}: pure calculation time: {}  single task average: {}".format(identifier, progress.humanize_time(time_calc), progress.humanize_time(time_calc / cnt) ))
                 print("{}: calculation:{:.2%} communication:{:.2%}".format(identifier, time_calc/(time_calc+time_queue), time_queue/(time_calc+time_queue)))
             except:
                 pass
@@ -607,7 +607,7 @@ class JobManager_Client(object):
                 while p.is_alive():
                     if self.verbose > 2:
                         print("{}: still alive {} PID {}".format(self._identifier, p, p.pid))
-                    p.join(timeout=1)
+                    p.join(timeout=self.interval)
 
                 if self.verbose > 2:
                     print("{}: process {} PID {} was joined".format(self._identifier, p, p.pid))
@@ -1528,12 +1528,12 @@ def proxy_operation_decorator_python3(proxy, operation, verbose=1, identifier=''
                 res = o(*args, **kwargs)
                 
             except Exception as e:
-                if verbose > 0:
+                if verbose > 1:
                     print("{}operation '{}' -> {} FAILED due to '{}'".format(identifier, operation, dest, type(e)))
                     print(traceback.format_stack()[-3].strip())
                     
                 if type(e) is ConnectionResetError:
-                    if verbose > 0:
+                    if verbose > 1:
                         traceback.print_exc(limit=1)
                         print("{}try to reconnect".format(identifier))
                     call_connect(proxy._connect, dest, verbose, identifier, reconnect_wait, reconnect_tries)
diff --git a/tests/test_jobmanager.py b/tests/test_jobmanager.py
index 34b5356..1a2be67 100644
--- a/tests/test_jobmanager.py
+++ b/tests/test_jobmanager.py
@@ -883,22 +883,22 @@ if __name__ == "__main__":
         pass
     else:    
         func = [
-        test_Signal_to_SIG_IGN,
-        test_Signal_to_sys_exit,
-        test_Signal_to_terminate_process_list,
+#         test_Signal_to_SIG_IGN,
+#         test_Signal_to_sys_exit,
+#         test_Signal_to_terminate_process_list,
                   
-        test_jobmanager_basic,
-        test_jobmanager_server_signals,
-        test_shutdown_server_while_client_running,
-        test_shutdown_client,
-        test_check_fail,
-        test_jobmanager_read_old_stat,
+#         test_jobmanager_basic,
+#         test_jobmanager_server_signals,
+#         test_shutdown_server_while_client_running,
+#         test_shutdown_client,
+#         test_check_fail,
+#         test_jobmanager_read_old_stat,
         test_client_status,
-        test_jobmanager_local,
-        test_start_server_on_used_port,
-        test_shared_const_arg,
-        test_digest_rejected,
-        test_exception,
+#         test_jobmanager_local,
+#         test_start_server_on_used_port,
+#         test_shared_const_arg,
+#         test_digest_rejected,
+#         test_exception,
 
         lambda : print("END")
         ]