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
|
//
// Copyright 2011 Ettus Research LLC
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#include <uhd/utils/thread_priority.hpp>
#include <uhd/utils/safe_main.hpp>
#include <uhd/usrp/multi_usrp.hpp>
#include <boost/program_options.hpp>
#include <boost/format.hpp>
#include <boost/thread/thread.hpp>
#include <boost/math/special_functions/round.hpp>
#include <iostream>
#include <complex>
namespace po = boost::program_options;
/***********************************************************************
* Test result variables
**********************************************************************/
unsigned long long num_overflows = 0;
unsigned long long num_underflows = 0;
unsigned long long num_rx_samps = 0;
unsigned long long num_tx_samps = 0;
unsigned long long num_dropped_samps = 0;
unsigned long long num_seq_errors = 0;
/***********************************************************************
* Benchmark RX Rate
**********************************************************************/
void benchmark_rx_rate(uhd::usrp::multi_usrp::sptr usrp){
uhd::set_thread_priority_safe();
//print pre-test summary
std::cout << boost::format(
"Testing receive rate %f Msps"
) % (usrp->get_rx_rate()/1e6) << std::endl;
//setup variables and allocate buffer
uhd::rx_metadata_t md;
const size_t max_samps_per_packet = usrp->get_device()->get_max_recv_samps_per_packet();
std::vector<std::complex<float> > buff(max_samps_per_packet);
bool had_an_overflow = false;
uhd::time_spec_t last_time;
const double rate = usrp->get_rx_rate();
usrp->issue_stream_cmd(uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS);
while (not boost::this_thread::interruption_requested()){
num_rx_samps += usrp->get_device()->recv(
&buff.front(), buff.size(), md,
uhd::io_type_t::COMPLEX_FLOAT32,
uhd::device::RECV_MODE_ONE_PACKET
);
//handle the error codes
switch(md.error_code){
case uhd::rx_metadata_t::ERROR_CODE_NONE:
if (had_an_overflow){
had_an_overflow = false;
num_dropped_samps += boost::math::iround((md.time_spec - last_time).get_real_secs()*rate);
}
break;
case uhd::rx_metadata_t::ERROR_CODE_OVERFLOW:
had_an_overflow = true;
last_time = md.time_spec;
num_overflows++;
break;
default:
std::cerr << "Error code: " << md.error_code << std::endl;
std::cerr << "Unexpected error on recv, continuing..." << std::endl;
break;
}
}
usrp->issue_stream_cmd(uhd::stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS);
}
/***********************************************************************
* Benchmark TX Rate
**********************************************************************/
void benchmark_tx_rate(uhd::usrp::multi_usrp::sptr usrp){
uhd::set_thread_priority_safe();
//print pre-test summary
std::cout << boost::format(
"Testing transmit rate %f Msps"
) % (usrp->get_tx_rate()/1e6) << std::endl;
//setup variables and allocate buffer
uhd::tx_metadata_t md;
md.has_time_spec = false;
const size_t max_samps_per_packet = usrp->get_device()->get_max_send_samps_per_packet();
std::vector<std::complex<float> > buff(max_samps_per_packet);
while (not boost::this_thread::interruption_requested()){
num_tx_samps += usrp->get_device()->send(
&buff.front(), buff.size(), md,
uhd::io_type_t::COMPLEX_FLOAT32,
uhd::device::SEND_MODE_ONE_PACKET
);
}
//send a mini EOB packet
md.end_of_burst = true;
usrp->get_device()->send("", 0, md,
uhd::io_type_t::COMPLEX_FLOAT32,
uhd::device::SEND_MODE_FULL_BUFF
);
}
void benchmark_tx_rate_async_helper(uhd::usrp::multi_usrp::sptr usrp){
//setup variables and allocate buffer
uhd::async_metadata_t async_md;
while (not boost::this_thread::interruption_requested()){
if (not usrp->get_device()->recv_async_msg(async_md)) continue;
//handle the error codes
switch(async_md.event_code){
case uhd::async_metadata_t::EVENT_CODE_BURST_ACK:
return;
case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW:
case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW_IN_PACKET:
num_underflows++;
break;
case uhd::async_metadata_t::EVENT_CODE_SEQ_ERROR:
case uhd::async_metadata_t::EVENT_CODE_SEQ_ERROR_IN_BURST:
num_seq_errors++;
break;
default:
std::cerr << "Event code: " << async_md.event_code << std::endl;
std::cerr << "Unexpected event on async recv, continuing..." << std::endl;
break;
}
}
}
/***********************************************************************
* Main code + dispatcher
**********************************************************************/
int UHD_SAFE_MAIN(int argc, char *argv[]){
uhd::set_thread_priority_safe();
//variables to be set by po
std::string args;
double duration;
double rx_rate, tx_rate;
//setup the program options
po::options_description desc("Allowed options");
desc.add_options()
("help", "help message")
("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
("duration", po::value<double>(&duration)->default_value(10.0), "duration for the test in seconds")
("rx_rate", po::value<double>(&rx_rate), "specify to perform a RX rate test (sps)")
("tx_rate", po::value<double>(&tx_rate), "specify to perform a TX rate test (sps)")
;
po::variables_map vm;
po::store(po::parse_command_line(argc, argv, desc), vm);
po::notify(vm);
//print the help message
if (vm.count("help")){
std::cout << boost::format("UHD Benchmark Rate %s") % desc << std::endl;
std::cout <<
" Specify --rx_rate for a receive-only test.\n"
" Specify --tx_rate for a transmit-only test.\n"
" Specify both options for a full-duplex test.\n"
<< std::endl;
return ~0;
}
//create a usrp device
std::cout << std::endl;
uhd::device_addrs_t device_addrs = uhd::device::find(args);
if (not device_addrs.empty() and device_addrs.at(0).get("type", "") == "usrp1"){
std::cerr << "*** Warning! ***" << std::endl;
std::cerr << "Benchmark results will be inaccurate on USRP1 due to insufficient features.\n" << std::endl;
}
std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
uhd::usrp::multi_usrp::sptr usrp = uhd::usrp::multi_usrp::make(args);
std::cout << boost::format("Using Device: %s") % usrp->get_pp_string() << std::endl;
boost::thread_group thread_group;
//spawn the receive test thread
if (vm.count("rx_rate")){
usrp->set_rx_rate(rx_rate);
thread_group.create_thread(boost::bind(&benchmark_rx_rate, usrp));
}
//spawn the transmit test thread
if (vm.count("tx_rate")){
usrp->set_tx_rate(tx_rate);
thread_group.create_thread(boost::bind(&benchmark_tx_rate, usrp));
thread_group.create_thread(boost::bind(&benchmark_tx_rate_async_helper, usrp));
}
//sleep for the required duration
const long secs = long(duration);
const long usecs = long((duration - secs)*1e6);
boost::this_thread::sleep(boost::posix_time::seconds(secs) + boost::posix_time::microseconds(usecs));
//interrupt and join the threads
thread_group.interrupt_all();
thread_group.join_all();
//print summary
std::cout << std::endl << boost::format(
"Benchmark rate summary:\n"
" Num received samples: %u\n"
" Num dropped samples: %u\n"
" Num overflows detected: %u\n"
" Num transmitted samples: %u\n"
" Num sequence errors: %u\n"
" Num underflows detected: %u\n"
) % num_rx_samps % num_dropped_samps % num_overflows % num_tx_samps % num_seq_errors % num_underflows << std::endl;
//finished
std::cout << std::endl << "Done!" << std::endl << std::endl;
return 0;
}
|
