Use requested bitrate in iperf3 UDP analysis function

Sender bitrate is not always equal to the requested bitrate (set by "-b" iperf option) in iperf3 (v3.9) UDP tests, so we have to compture bitrate performance of UDP iperf3 test as receiver over requested bitrate. Bitrate performance then express percentage of requested bitrate, which is received on the receiver side.

ci-scripts/cls_oaicitest.py

@@ -142,7 +142,7 @@ def Iperf_analyzeV3BIDIRJson(filename):
 	msg += f'Receiver Bitrate UL : {receiver_bitrate_ul} Mbps\n'
 	return (True, msg)
 
-def Iperf_analyzeV3UDP(filename, iperf_bitrate_threshold, iperf_packetloss_threshold):
+def Iperf_analyzeV3UDP(filename, iperf_bitrate_threshold, iperf_packetloss_threshold, target_bitrate):
 	if (not os.path.isfile(filename)):
 		return (False, 'Iperf3 UDP: Log file not present')
 	if (os.path.getsize(filename)==0):
@@ -173,12 +173,12 @@ def Iperf_analyzeV3UDP(filename, iperf_bitrate_threshold, iperf_packetloss_thres
 			sender_bitrate = float(sender_bitrate) / 1000
 		if receiver_unit == 'Kbits/sec':
 			receiver_bitrate = float(receiver_bitrate) / 1000
-		br_perf = 100 * float(receiver_bitrate) / float(sender_bitrate)
+		br_perf = 100 * float(receiver_bitrate) / float(target_bitrate)
 		br_perf = '%.2f ' % br_perf
 		sender_bitrate = '%.2f ' % float(sender_bitrate)
 		receiver_bitrate = '%.2f ' % float(receiver_bitrate)
 		req_msg = f'Sender Bitrate  : {sender_bitrate} Mbps'
-		bir_msg = f'Receiver Bitrate : {receiver_bitrate} Mbps'
+		bir_msg = f'Receiver Bitrate: {receiver_bitrate} Mbps'
 		brl_msg = f'{br_perf}%'
 		jit_msg = f'Jitter          : {receiver_jitter}'
 		pal_msg = f'Packet Loss     : {receiver_packetloss} %'
@@ -837,7 +837,7 @@ class OaiCiTest():
 				else:
 					cmd_ue.copyin(f'/tmp/{client_filename}', client_filename)
 			if udpIperf:
-				status, msg = Iperf_analyzeV3UDP(client_filename, self.iperf_bitrate_threshold, self.iperf_packetloss_threshold)
+				status, msg = Iperf_analyzeV3UDP(client_filename, self.iperf_bitrate_threshold, self.iperf_packetloss_threshold, target_bitrate)
 			elif bidirIperf:
 				status, msg = Iperf_analyzeV3BIDIRJson(client_filename)
 			else: