+"""
+
+
+elapsed_time=0
+t = time.process_time()
+for i in range(10):
+
+ proc=subprocess.Popen("scp lena3.jpg bilbo.iut-bm.univ-fcomte.fr:/tmp", shell=True)
+ proc.wait()
+
+elapsed_time += time.process_time() - t
+print("ssh normal",elapsed_time)
+
+
+elapsed_time=0
+t = time.process_time()
+for i in range(10):
+
+ proc=subprocess.Popen("scp lena3.jpg bilbo.iut-bm.univ-fcomte.fr:/tmp", shell=True)
+ proc.wait()
+
+elapsed_time += time.process_time() - t
+print("ssh reduce",elapsed_time)