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
|
//
// Copyright 2010-2013 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 "xport_benchmarker.hpp"
namespace uhd { namespace transport {
const device_addr_t& xport_benchmarker::benchmark_throughput_chdr
(
zero_copy_if::sptr tx_transport,
zero_copy_if::sptr rx_transport,
uint32_t sid,
bool big_endian,
uint32_t duration_ms)
{
vrt::if_packet_info_t pkt_info;
_initialize_chdr(tx_transport, rx_transport, sid, pkt_info);
_reset_counters();
boost::posix_time::ptime start_time(boost::posix_time::microsec_clock::local_time());
_tx_thread.reset(new boost::thread(boost::bind(&xport_benchmarker::_stream_tx, this, tx_transport.get(), &pkt_info, big_endian)));
_rx_thread.reset(new boost::thread(boost::bind(&xport_benchmarker::_stream_rx, this, rx_transport.get(), &pkt_info, big_endian)));
boost::this_thread::sleep(boost::posix_time::milliseconds(duration_ms));
_tx_thread->interrupt();
_rx_thread->interrupt();
_tx_thread->join();
_rx_thread->join();
boost::posix_time::ptime stop_time(boost::posix_time::microsec_clock::local_time());
double duration_s = ((double)(stop_time-start_time).total_microseconds())/1e6;
uint64_t tx_bytes = pkt_info.num_payload_words32*sizeof(uint32_t)*_num_tx_packets;
uint64_t rx_bytes = pkt_info.num_payload_words32*sizeof(uint32_t)*_num_rx_packets;
double tx_rate = (((double)tx_bytes)/duration_s);
double rx_rate = (((double)rx_bytes)/duration_s);
_results["TX-Bytes"] = (boost::format("%.2fMB") % (tx_bytes/(1024*1024))).str();
_results["RX-Bytes"] = (boost::format("%.2fMB") % (rx_bytes/(1024*1024))).str();
_results["TX-Throughput"] = (boost::format("%.2fMB/s") % (tx_rate/(1024*1024))).str();
_results["RX-Throughput"] = (boost::format("%.2fMB/s") % (rx_rate/(1024*1024))).str();
_results["TX-Timeouts"] = boost::lexical_cast<std::string>(_num_tx_timeouts);
_results["RX-Timeouts"] = boost::lexical_cast<std::string>(_num_rx_timeouts);
_results["Data-Errors"] = boost::lexical_cast<std::string>(_num_data_errors);
return _results;
}
void xport_benchmarker::_stream_tx(zero_copy_if* transport, vrt::if_packet_info_t* pkt_info, bool big_endian)
{
while (not boost::this_thread::interruption_requested()) {
managed_send_buffer::sptr buff = transport->get_send_buff(_tx_timeout);
if (buff) {
uint32_t *packet_buff = buff->cast<uint32_t *>();
//Populate packet
if (big_endian) {
vrt::if_hdr_pack_be(packet_buff, *pkt_info);
} else {
vrt::if_hdr_pack_le(packet_buff, *pkt_info);
}
//send the buffer over the interface
buff->commit(sizeof(uint32_t)*(pkt_info->num_packet_words32));
_num_tx_packets++;
} else {
_num_tx_timeouts++;
}
}
}
void xport_benchmarker::_stream_rx(zero_copy_if* transport, const vrt::if_packet_info_t* exp_pkt_info, bool big_endian)
{
while (not boost::this_thread::interruption_requested()) {
managed_recv_buffer::sptr buff = transport->get_recv_buff(_rx_timeout);
if (buff) {
//Extract packet info
vrt::if_packet_info_t pkt_info;
pkt_info.link_type = exp_pkt_info->link_type;
pkt_info.num_packet_words32 = buff->size()/sizeof(uint32_t);
const uint32_t *packet_buff = buff->cast<const uint32_t *>();
_num_rx_packets++;
//unpacking can fail
try {
if (big_endian) {
vrt::if_hdr_unpack_be(packet_buff, pkt_info);
} else {
vrt::if_hdr_unpack_le(packet_buff, pkt_info);
}
if (exp_pkt_info->packet_type != pkt_info.packet_type ||
exp_pkt_info->num_payload_bytes != pkt_info.num_payload_bytes) {
_num_data_errors++;
}
} catch(const std::exception &ex) {
_num_data_errors++;
}
} else {
_num_rx_timeouts++;
}
}
}
void xport_benchmarker::_reset_counters(void)
{
_num_tx_packets = 0;
_num_rx_packets = 0;
_num_tx_timeouts = 0;
_num_rx_timeouts = 0;
_num_data_errors = 0;
}
void xport_benchmarker::_initialize_chdr(
zero_copy_if::sptr tx_transport,
zero_copy_if::sptr rx_transport,
uint32_t sid,
vrt::if_packet_info_t& pkt_info)
{
_tx_timeout = 0.5;
_rx_timeout = 0.5;
size_t frame_size = std::min(tx_transport->get_send_frame_size(), rx_transport->get_recv_frame_size());
pkt_info.link_type = vrt::if_packet_info_t::LINK_TYPE_CHDR;
pkt_info.packet_type = vrt::if_packet_info_t::PACKET_TYPE_DATA;
pkt_info.num_packet_words32 = (frame_size/sizeof(uint32_t));
pkt_info.num_payload_words32 = pkt_info.num_packet_words32 - 2;
pkt_info.num_payload_bytes = pkt_info.num_payload_words32*sizeof(uint32_t);
pkt_info.packet_count = 0;
pkt_info.sob = false;
pkt_info.eob = false;
pkt_info.sid = sid;
pkt_info.has_sid = true;
pkt_info.has_cid = false;
pkt_info.has_tsi = false;
pkt_info.has_tsf = false;
pkt_info.has_tlr = false;
}
}}
|
