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
|
#!/bin/env python
##
## Copyright (c) 2010-2017 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.
##
from testerset import *
from time import sleep
from time import time
from decimal import *
import copy
from os import system
import socket
from itertools import chain
from math import *
from csvwriter import *
from config import *
from progress import *
from proxmaxssprobe import *
def runTest(minSetupRate, testParam):
print "Running test with following parameters:"
print testParam.toString();
testers = testerSet(config._test_systems, config._max_port_rate, testParam);
thresh = testParam.getConnections();
p = Progress(thresh, ["connections", "setup rate", "reTX"], False);
loop_count = 0;
converged = False;
testers.startForkJoin();
testers.wait_links_up();
testers.start_cores();
print "Running until convergence (%s connections)" % str(thresh)
while (not converged):
sleep(config._interCheckDuration)
testers.update_stats();
tot = testers.get_total_connections();
tot_retx = testers.get_total_retx();
rates = testers.get_rates();
curSetupRate = testers.get_setup_rate();
ierrors = testers.getIerrors();
converged = tot >= thresh;
if (not converged):
if (loop_count > 0 and curSetupRate < minSetupRate):
reason = str(curSetupRate) + " < " + str(minSetupRate);
print "Current setup rate is lower than min setup rate: " + reason
testers.killProx();
return False, [];
if (not testers.conditionsGood()):
print "conditions are bad: " + testers.getReason();
testers.killProx();
return False, [];
if (config._debug):
p.setProgress(tot, [tot, curSetupRate, tot_retx]);
print p.toString();
loop_count += 1;
print "converged"
skipTime = config._skipTime
print "Connection threshold reached, waiting for " + str(skipTime) + "s, conditions checked = " + str(config._checkConditions)
while (skipTime > 0):
skipTime -= config._interCheckDuration
sleep(config._interCheckDuration)
testers.update_stats();
if (config._checkConditions and not testers.conditionsGood()):
print "conditions are bad: " + testers.getReason();
testers.killProx();
return False, [];
testers.tx_rate_meassurement();
testLength = config._testLength
print "Waiting final " + str(testLength) + "s"
while (testLength > 0):
testLength -= config._interCheckDuration
sleep(config._interCheckDuration)
testers.update_stats();
if (not testers.conditionsGood()):
print "conditions are bad: " + testers.getReason();
testers.killProx();
return False, [];
rates = testers.tx_rate_meassurement();
testers.killProx();
return True, rates;
def find_ss(tot_conn, maxSetupRate, ss_max):
iterationCount = 0;
valid_ss = []
speed_ss = [];
# The setup rate must be in [0.2% of total connections, maxSetupRate]
# Also, it must not be hihger than 50% of the total connections
min_setup_rate = tot_conn / 500;
if (min_setup_rate > maxSetupRate):
print "min setup rate > max setup rate: " + str(min_setup_rate) + " > " + str(maxSetupRate);
return valid_ss, speed_ss;
if (maxSetupRate > tot_conn / 2):
print "maximum setup rate (" + str(maxSetupRate) + ") is more than 50% of " + str(tot_conn)
return valid_ss, speed_ss;
accuracy = 10**config._accuracy
ss_lo = 1
ss_hi = int(round(ss_max * accuracy,0))
iterationOverride = [ss_hi, ss_lo];
# Binary search for highest speed scaling
while (ss_lo <= ss_hi):
if (iterationCount < len(iterationOverride)):
ss = iterationOverride[iterationCount]
else:
ss = (ss_lo + ss_hi)/2;
testParam = TestParameters(maxSetupRate, tot_conn, float(ss)/accuracy);
success, rates = runTest(min_setup_rate, testParam);
print "success = " + str(success) + ", rates = " + str(rates)
if (success == True):
valid_ss.append(float(ss)/accuracy);
speed_ss.append(sum(rates)/len(rates))
ss_lo = ss + 1
else:
ss_hi = ss - 1;
iterationCount += 1
return valid_ss, speed_ss;
def get_highest_ss_and_speed(valid_ss, speed_ss):
highest_ss = None;
highest_speed = None;
for i in range(len(valid_ss)):
if(highest_ss == None or highest_ss < valid_ss[i]):
highest_ss = valid_ss[i];
highest_speed = speed_ss[i];
return highest_ss, highest_speed;
def get_max_ss():
ts = config._test_systems[0];
test_system = ProxMaxSSProbe(ts);
max_ss = test_system.getMaxSS();
return floor((max_ss * (10**config._accuracy)))/(10**config._accuracy)
config = Config();
config.parse(sys.argv[0], sys.argv[1:])
err = config.getErrorTestOne();
if (err is not None):
print "Invalid configuration: " + err;
exit(-1);
else:
print config.toString()
if (config._once is not None):
maxSetupRate = int(config._once[0])
minSetupRate = maxSetupRate/500
connections = int(config._once[1])
speedScaling = float(config._once[2])
testParam = TestParameters(maxSetupRate, connections, speedScaling)
success, rates = runTest(minSetupRate, testParam)
print "success = " + str(success) + ", port rates = " + str(rates)
exit(0);
msr_list = []
msr_list += range(4000, 20000, 2000)
msr_list += range(20000, 100000, 20000)
msr_list += range(100000, 300000, 50000)
msr_list += range(300000, 800001, 100000);
conn_list = [1*10**5, 2*10**5, 4*10**5, 8*10**5, 1*10**6, 2*10**6]
summary_file = CsvWriter()
summary_file.open(config._output_file_name)
tot_it = 0;
for tot_conn in conn_list:
for msr in msr_list:
if (msr >= tot_conn/2):
break;
tot_it += 1
cnt = -1;
print "Search will include " + str(tot_it) + " parameter combinations"
print "Will search for highest link utilization"
# If the lowest msr was a for n connections, then the lowest msr
# for n + 1 connections can't be lower than a.
low_sr = msr_list[0];
max_ss = get_max_ss()
high_ss = Decimal(max_ss)
globalProgress = Progress(tot_it)
globalProgress.setProgress(0);
for tot_conn in conn_list:
had_success = False;
all_ss = []
for msr in msr_list:
globalProgress.incrProgress();
if (msr < low_sr):
print "skipping " + str(msr) + " since it is lower than " + str(low_sr)
continue;
print globalProgress.toString();
valid_ss, speed_ss = find_ss(tot_conn, msr, high_ss)
print "valid ss = " + str(valid_ss)
print "valid speeds = " + str(speed_ss)
if (len(valid_ss) > 0):
highest_ss, highest_speed = get_highest_ss_and_speed(valid_ss, speed_ss);
summary_file.write([msr, tot_conn, highest_ss, highest_speed]);
if (not had_success):
low_sr = msr;
had_success = True;
all_ss = all_ss + valid_ss;
if (len(all_ss) > 0):
high_ss = max(all_ss);
|
