4 ## Copyright (c) 2010-2020 Intel Corporation
6 ## Licensed under the Apache License, Version 2.0 (the "License");
7 ## you may not use this file except in compliance with the License.
8 ## You may obtain a copy of the License at
11 ## http://www.apache.org/licenses/LICENSE-2.0
13 ## Unless required by applicable law or agreed to in writing, software
14 ## distributed under the License is distributed on an "AS IS" BASIS,
15 ## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 ## See the License for the specific language governing permissions and
17 ## limitations under the License.
22 from rapid_log import RapidLog
23 from rapid_test import RapidTest
25 class ImpairTest(RapidTest):
27 Class to manage the impair testing
29 def __init__(self, test_param, lat_percentile, runtime, pushgateway,
30 environment_file, gen_machine):
31 self.test = test_param
32 self.gen_machine = gen_machine
33 self.sut_machine = sut_machine
34 self.test['lat_percentile'] = lat_percentile
35 self.test['runtime'] = runtime
36 self.test['pushgateway'] = pushgateway
37 self.test['environment_file'] = environment_file
40 # fieldnames = ['Flows','PacketSize','RequestedPPS','GeneratedPPS','SentPPS','ForwardedPPS','ReceivedPPS','AvgLatencyUSEC','MaxLatencyUSEC','Dropped','DropRate']
41 # writer = csv.DictWriter(data_csv_file, fieldnames=fieldnames)
42 # writer.writeheader()
43 size = self.test['packetsize']
44 flow_number = self.test['flowsize']
45 RapidLog.info("+-----------------------------------------------------------------------------------------------------------------------------------------------------------------+")
46 RapidLog.info("| Generator is sending UDP ("+'{:>5}'.format(flow_number)+" flow) packets ("+ '{:>5}'.format(size) +" bytes) to SUT via GW dropping and delaying packets. SUT sends packets back. Use ctrl-c to stop the test |")
47 RapidLog.info("+--------+--------------------+----------------+----------------+----------------+----------------+----------------+----------------+----------------+------------+")
48 RapidLog.info("| Test | Speed requested | Sent to NIC | Sent by Gen | Forward by SUT | Rec. by Gen | Avg. Latency | Max. Latency | Packets Lost | Loss Ratio |")
49 RapidLog.info("+--------+--------------------+----------------+----------------+----------------+----------------+----------------+----------------+----------------+------------+")
51 self.gen_machine.set_udp_packet_size(size)
52 self.gen_machine.set_flows(flow_number)
53 self.gen_machine.start_latency_cores()
54 speed = self.test['startspeed']
55 self.gen_machine.set_generator_speed(speed)
58 print('Measurement ongoing at speed: ' + str(round(speed,2)) + '% ',end='\r')
61 # Get statistics now that the generation is stable and NO ARP messages any more
62 pps_req_tx,pps_tx,pps_sut_tx_str,pps_rx,lat_avg, lat_perc, lat_perc_max, lat_max, abs_dropped, abs_tx_fail, abs_tx, lat_min, lat_used, r, actual_duration = run_iteration(float(self.test['runtime']),flow_number,size,speed)
63 drop_rate = 100.0*abs_dropped/abs_tx
65 lat_warning = bcolors.FAIL + ' Potential latency accuracy problem: {:>3.0f}%'.format(lat_used*100) + bcolors.ENDC
68 RapidLog.info('|{:>7}'.format(str(attempts))+" | " + '{:>5.1f}'.format(speed) + '% ' +'{:>6.3f}'.format(get_pps(speed,size)) + ' Mpps | '+ '{:>9.3f}'.format(pps_req_tx)+' Mpps | '+ '{:>9.3f}'.format(pps_tx) +' Mpps | ' + '{:>9}'.format(pps_sut_tx_str) +' Mpps | '+ '{:>9.3f}'.format(pps_rx)+' Mpps | '+ '{:>9.0f}'.format(lat_avg)+' us | '+ '{:>9.0f}'.format(lat_max)+' us | '+ '{:>14d}'.format(abs_dropped)+ ' |''{:>9.2f}'.format(drop_rate)+ '% |'+lat_warning)
69 # writer.writerow({'Flows':flow_number,'PacketSize':(size+4),'RequestedPPS':get_pps(speed,size),'GeneratedPPS':pps_req_tx,'SentPPS':pps_tx,'ForwardedPPS':pps_sut_tx_str,'ReceivedPPS':pps_rx,'AvgLatencyUSEC':lat_avg,'MaxLatencyUSEC':lat_max,'Dropped':abs_dropped,'DropRate':drop_rate})
70 if self.test['pushgateway']:
71 URL = self.test['pushgateway'] + '/metrics/job/' + TestName + '/instance/' + self.test['environment_file']
72 DATA = 'Flows {}\nPacketSize {}\nRequestedPPS {}\nGeneratedPPS {}\nSentPPS {}\nForwardedPPS {}\nReceivedPPS {}\nAvgLatencyUSEC {}\nMaxLatencyUSEC {}\nDropped {}\nDropRate {}\n'.format(flow_number,size+4,get_pps(speed,size),pps_req_tx,pps_tx,pps_sut_tx_str,pps_rx,lat_avg,lat_max,abs_dropped,drop_rate)
73 HEADERS = {'X-Requested-With': 'Python requests', 'Content-type': 'text/xml'}
74 response = requests.post(url=URL, data=DATA,headers=HEADERS)
75 if (response.status_code != 202) and (response.status_code != 200):
76 RapidLog.info('Cannot send metrics to {}'.format(URL))
78 self.gen_machine.stop_latency_cores()