1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
|
#!/usr/bin/python
##
## Copyright (c) 2020 Intel Corporation
##
## Licensed under the Apache License, Version 2.0 (the "License");
## you may not use this file except in compliance with the License.
## You may obtain a copy of the License at
##
##
## http://www.apache.org/licenses/LICENSE-2.0
##
## Unless required by applicable law or agreed to in writing, software
## distributed under the License is distributed on an "AS IS" BASIS,
## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
## See the License for the specific language governing permissions and
## limitations under the License.
##
import sys
import time
from math import ceil
from statistics import mean
from past.utils import old_div
from rapid_log import RapidLog
from rapid_log import bcolors
from rapid_test import RapidTest
inf = float("inf")
class FlowSizeTest(RapidTest):
"""
Class to manage the flowsizetesting
"""
def __init__(self, test_param, lat_percentile, runtime, testname,
environment_file, gen_machine, sut_machine, background_machines):
super().__init__(test_param, runtime, testname, environment_file)
self.gen_machine = gen_machine
self.sut_machine = sut_machine
self.background_machines = background_machines
self.test['lat_percentile'] = lat_percentile
if self.test['test'] == 'TST009test':
# This test implements some of the testing as defined in
# https://docbox.etsi.org/ISG/NFV/open/Publications_pdf/Specs-Reports/NFV-TST%20009v3.2.1%20-%20GS%20-%20NFVI_Benchmarks.pdf
self.test['TST009_n'] = int(ceil(old_div(
self.test['maxframespersecondallingress'],
self.test['stepsize'])))
self.test['TST009'] = True
self.test['TST009_L'] = 0
self.test['TST009_R'] = self.test['TST009_n'] - 1
self.test['TST009_S']= []
for m in range(0, self.test['TST009_n']):
self.test['TST009_S'].append((m+1) * self.test['stepsize'])
elif self.test['test'] == 'fixed_rate':
for key in['drop_rate_threshold','lat_avg_threshold',
'lat_perc_threshold','lat_max_threshold']:
self.test[key] = inf
def new_speed(self, speed,size,success):
if self.test['test'] == 'fixed_rate':
return (self.test['startspeed'])
elif self.test['test'] == 'increment_till_fail':
return (speed + self.test['step'])
elif 'TST009' in self.test.keys():
if success:
self.test['TST009_L'] = self.test['TST009_m'] + 1
else:
self.test['TST009_R'] = max(self.test['TST009_m'] - 1, self.test['TST009_L'])
self.test['TST009_m'] = int (old_div((self.test['TST009_L'] + self.test['TST009_R']),2))
return (self.get_percentageof10Gbps(self.test['TST009_S'][self.test['TST009_m']],size))
else:
if success:
self.test['minspeed'] = speed
else:
self.test['maxspeed'] = speed
return (old_div((self.test['minspeed'] + self.test['maxspeed']),2.0))
def get_start_speed_and_init(self, size):
if self.test['test'] == 'fixed_rate':
return (self.test['startspeed'])
elif self.test['test'] == 'increment_till_fail':
return (self.test['startspeed'])
elif 'TST009' in self.test.keys():
self.test['TST009_L'] = 0
self.test['TST009_R'] = self.test['TST009_n'] - 1
self.test['TST009_m'] = int(old_div((self.test['TST009_L'] + self.test['TST009_R']), 2))
return (self.get_percentageof10Gbps(self.test['TST009_S'][self.test['TST009_m']],size))
else:
self.test['minspeed'] = 0
self.test['maxspeed'] = self.test['startspeed']
return (self.test['startspeed'])
def resolution_achieved(self):
if self.test['test'] == 'fixed_rate':
return (True)
elif 'TST009' in self.test.keys():
return (self.test['TST009_L'] == self.test['TST009_R'])
else:
return ((self.test['maxspeed'] - self.test['minspeed']) <= self.test['accuracy'])
def run(self):
result_details = {'Details': 'Nothing'}
self.gen_machine.start_latency_cores()
TestResult = 0
for imix in self.test['imixs']:
size = mean(imix)
self.gen_machine.set_udp_packet_size(imix)
if self.background_machines:
backgroundinfo = '{}Running {} x background traffic not represented in the table{}'.format(bcolors.FLASH,len(self.background_machines),bcolors.ENDC)
else:
backgroundinfo = '{}{}'.format(bcolors.FLASH,bcolors.ENDC)
self.set_background_size(self.background_machines, imix)
RapidLog.info("+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+")
RapidLog.info('| UDP, {:>5} bytes, different number of flows by randomizing SRC & DST UDP port. {:116.116}|'.format(round(size), backgroundinfo))
RapidLog.info("+--------+------------------+-------------+-------------+-------------+------------------------+----------+----------+----------+-----------+-----------+-----------+-----------+-------+----+")
RapidLog.info('| Flows | Speed requested | Gen by core | Sent by NIC | Fwrd by SUT | Rec. by core | Avg. Lat.|{:.0f} Pcentil| Max. Lat.| Sent | Received | Lost | Total Lost|L.Ratio|Time|'.format(self.test['lat_percentile']*100))
RapidLog.info("+--------+------------------+-------------+-------------+-------------+------------------------+----------+----------+----------+-----------+-----------+-----------+-----------+-------+----+")
for flow_number in self.test['flows']:
attempts = 0
self.gen_machine.reset_stats()
if self.sut_machine:
self.sut_machine.reset_stats()
flow_number = self.gen_machine.set_flows(flow_number)
self.set_background_flows(self.background_machines, flow_number)
endspeed = None
speed = self.get_start_speed_and_init(size)
while True:
attempts += 1
endwarning = False
print(str(flow_number)+' flows: Measurement ongoing at speed: ' + str(round(speed,2)) + '% ',end='\r')
sys.stdout.flush()
# Start generating packets at requested speed (in % of a 10Gb/s link)
self.gen_machine.set_generator_speed(speed)
self.set_background_speed(self.background_machines, speed)
self.start_background_traffic(self.background_machines)
# Get statistics now that the generation is stable and initial ARP messages are dealt with
pps_req_tx,pps_tx,pps_sut_tx,pps_rx,lat_avg,lat_perc , lat_perc_max, lat_max, abs_tx,abs_rx,abs_dropped, abs_tx_fail, drop_rate, lat_min, lat_used, r, actual_duration, avg_bg_rate, bucket_size, buckets = self.run_iteration(float(self.test['runtime']),flow_number,size,speed)
self.stop_background_traffic(self.background_machines)
if r > 1:
retry_warning = bcolors.WARNING + ' {:1} retries needed'.format(r) + bcolors.ENDC
else:
retry_warning = ''
# Drop rate is expressed in percentage. lat_used is a ratio (0 to 1). The sum of these 2 should be 100%.
# If the sum is lower than 95, it means that more than 5% of the latency measurements where dropped for accuracy reasons.
if (drop_rate + lat_used * 100) < 95:
lat_warning = bcolors.WARNING + ' Latency accuracy issue?: {:>3.0f}%'.format(lat_used*100) + bcolors.ENDC
else:
lat_warning = ''
if self.test['test'] == 'fixed_rate':
endspeed = speed
endpps_req_tx = None
endpps_tx = None
endpps_sut_tx = None
endpps_rx = None
endlat_avg = lat_avg
endlat_perc = lat_perc
endlat_perc_max = lat_perc_max
endlat_max = lat_max
endbuckets = buckets
endabs_dropped = abs_dropped
enddrop_rate = drop_rate
endabs_tx = abs_tx
endabs_rx = abs_rx
endavg_bg_rate = avg_bg_rate
if lat_warning or retry_warning:
endwarning = '| | {:177.177} |'.format(retry_warning + lat_warning)
success = True
TestResult = TestResult + pps_rx # fixed rate testing result is strange: we just report the pps received
speed_prefix = lat_avg_prefix = lat_perc_prefix = lat_max_prefix = abs_drop_rate_prefix = drop_rate_prefix = bcolors.ENDC
# The following if statement is testing if we pass the success criteria of a certain drop rate, average latency and maximum latency below the threshold
# The drop rate success can be achieved in 2 ways: either the drop rate is below a treshold, either we want that no packet has been lost during the test
# This can be specified by putting 0 in the .test file
elif ((drop_rate < self.test['drop_rate_threshold']) or (abs_dropped==self.test['drop_rate_threshold']==0)) and (lat_avg< self.test['lat_avg_threshold']) and (lat_perc< self.test['lat_perc_threshold']) and (lat_max < self.test['lat_max_threshold']):
if (old_div((self.get_pps(speed,size) - pps_tx),self.get_pps(speed,size)))>0.01:
speed_prefix = bcolors.WARNING
if abs_tx_fail > 0:
gen_warning = bcolors.WARNING + ' Network limit?: requesting {:<.3f} Mpps and getting {:<.3f} Mpps - {} failed to be transmitted'.format(self.get_pps(speed,size), pps_tx, abs_tx_fail) + bcolors.ENDC
else:
gen_warning = bcolors.WARNING + ' Generator limit?: requesting {:<.3f} Mpps and getting {:<.3f} Mpps'.format(self.get_pps(speed,size), pps_tx) + bcolors.ENDC
else:
speed_prefix = bcolors.ENDC
gen_warning = ''
endspeed = speed
endspeed_prefix = speed_prefix
endpps_req_tx = pps_req_tx
endpps_tx = pps_tx
endpps_sut_tx = pps_sut_tx
endpps_rx = pps_rx
endlat_avg = lat_avg
endlat_perc = lat_perc
endlat_perc_max = lat_perc_max
endlat_max = lat_max
endbuckets = buckets
endabs_dropped = None
enddrop_rate = drop_rate
endabs_tx = abs_tx
endabs_rx = abs_rx
endavg_bg_rate = avg_bg_rate
if lat_warning or gen_warning or retry_warning:
endwarning = '| | {:186.186} |'.format(retry_warning + lat_warning + gen_warning)
success = True
success_message=' SUCCESS'
speed_prefix = lat_avg_prefix = lat_perc_prefix = lat_max_prefix = abs_drop_rate_prefix = drop_rate_prefix = bcolors.ENDC
RapidLog.debug(self.report_result(-attempts,size,speed,pps_req_tx,pps_tx,pps_sut_tx,pps_rx,lat_avg,lat_perc,lat_perc_max,lat_max,abs_tx,abs_rx,abs_dropped,actual_duration,speed_prefix,lat_avg_prefix,lat_max_prefix,abs_drop_rate_prefix,drop_rate_prefix)+ success_message + retry_warning + lat_warning + gen_warning)
else:
success_message=' FAILED'
abs_drop_rate_prefix = bcolors.ENDC
if ((abs_dropped>0) and (self.test['drop_rate_threshold'] ==0)):
abs_drop_rate_prefix = bcolors.FAIL
if (drop_rate < self.test['drop_rate_threshold']):
drop_rate_prefix = bcolors.ENDC
else:
drop_rate_prefix = bcolors.FAIL
if (lat_avg< self.test['lat_avg_threshold']):
lat_avg_prefix = bcolors.ENDC
else:
lat_avg_prefix = bcolors.FAIL
if (lat_perc< self.test['lat_perc_threshold']):
lat_perc_prefix = bcolors.ENDC
else:
lat_perc_prefix = bcolors.FAIL
if (lat_max< self.test['lat_max_threshold']):
lat_max_prefix = bcolors.ENDC
else:
lat_max_prefix = bcolors.FAIL
if ((old_div((self.get_pps(speed,size) - pps_tx),self.get_pps(speed,size)))<0.001):
speed_prefix = bcolors.ENDC
else:
speed_prefix = bcolors.FAIL
success = False
RapidLog.debug(self.report_result(-attempts,size,speed,pps_req_tx,pps_tx,pps_sut_tx,pps_rx,lat_avg,lat_perc,lat_perc_max,lat_max,abs_tx,abs_rx,abs_dropped,actual_duration,speed_prefix,lat_avg_prefix,lat_perc_prefix,lat_max_prefix,abs_drop_rate_prefix,drop_rate_prefix)+ success_message + retry_warning + lat_warning)
speed = self.new_speed(speed, size, success)
if self.test['test'] == 'increment_till_fail':
if not success:
break
elif self.resolution_achieved():
break
if endspeed is not None:
speed_prefix = lat_avg_prefix = lat_perc_prefix = lat_max_prefix = abs_drop_rate_prefix = drop_rate_prefix = bcolors.ENDC
RapidLog.info(self.report_result(flow_number,size,endspeed,endpps_req_tx,endpps_tx,endpps_sut_tx,endpps_rx,endlat_avg,endlat_perc,endlat_perc_max,endlat_max,endabs_tx,endabs_rx,endabs_dropped,actual_duration,speed_prefix,lat_avg_prefix,lat_perc_prefix,lat_max_prefix,abs_drop_rate_prefix,drop_rate_prefix))
if endavg_bg_rate:
tot_avg_rx_rate = endpps_rx + (endavg_bg_rate * len(self.background_machines))
endtotaltrafficrate = '| | Total amount of traffic received by all generators during this test: {:>4.3f} Gb/s {:7.3f} Mpps {} |'.format(RapidTest.get_speed(tot_avg_rx_rate,size) , tot_avg_rx_rate, ' '*84)
RapidLog.info (endtotaltrafficrate)
if endwarning:
RapidLog.info (endwarning)
RapidLog.info("+--------+------------------+-------------+-------------+-------------+------------------------+----------+----------+----------+-----------+-----------+-----------+-----------+-------+----+")
if self.test['test'] != 'fixed_rate':
TestResult = TestResult + endpps_rx
result_details = {'test': self.test['testname'],
'environment_file': self.test['environment_file'],
'Flows': flow_number,
'Size': size,
'RequestedSpeed': RapidTest.get_pps(endspeed,size),
'CoreGenerated': endpps_req_tx,
'SentByNIC': endpps_tx,
'FwdBySUT': endpps_sut_tx,
'RevByCore': endpps_rx,
'AvgLatency': endlat_avg,
'PCTLatency': endlat_perc,
'MaxLatency': endlat_max,
'PacketsSent': endabs_tx,
'PacketsReceived': endabs_rx,
'PacketsLost': endabs_dropped,
'bucket_size': bucket_size,
'buckets': endbuckets}
result_details = self.post_data('rapid_flowsizetest', result_details)
else:
RapidLog.info('|{:>7}'.format(str(flow_number))+" | Speed 0 or close to 0")
self.gen_machine.stop_latency_cores()
return (TestResult, result_details)
|
