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-rw-r--r--host/examples/transport_hammer.cpp280
1 files changed, 0 insertions, 280 deletions
diff --git a/host/examples/transport_hammer.cpp b/host/examples/transport_hammer.cpp
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--- a/host/examples/transport_hammer.cpp
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-//
-// Copyright 2012 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/convert.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;
-
-/***********************************************************************
- * RX Hammer
- **********************************************************************/
-void rx_hammer(uhd::usrp::multi_usrp::sptr usrp, const std::string &rx_cpu, uhd::rx_streamer::sptr rx_stream){
- 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 = rx_stream->get_max_num_samps();
- std::vector<char> buff(max_samps_per_packet*uhd::convert::get_bytes_per_item(rx_cpu));
- std::vector<void *> buffs;
- for (size_t ch = 0; ch < rx_stream->get_num_channels(); ch++)
- buffs.push_back(&buff.front()); //same buffer for each channel
- bool had_an_overflow = false;
- uhd::time_spec_t last_time;
- const double rate = usrp->get_rx_rate();
- double timeout = 1;
-
- uhd::stream_cmd_t cmd(uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE);
- cmd.time_spec = usrp->get_time_now() + uhd::time_spec_t(0.05);
- cmd.stream_now = (buffs.size() == 1);
- srand( time(NULL) );
-
- while (not boost::this_thread::interruption_requested()){
- cmd.num_samps = rand() % 100000;
- rx_stream->issue_stream_cmd(cmd);
- num_rx_samps += rx_stream->recv(buffs, max_samps_per_packet, md, timeout, true);
-
- //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;
- if (!md.out_of_sequence)
- num_overflows++;
- break;
-
- default:
- std::cerr << "Receiver error: " << md.strerror() << std::endl;
- std::cerr << "Unexpected error on recv, continuing..." << std::endl;
- break;
- }
- }
-}
-
-/***********************************************************************
- * TX Hammer
- **********************************************************************/
-void tx_hammer(uhd::usrp::multi_usrp::sptr usrp, const std::string &tx_cpu, uhd::tx_streamer::sptr tx_stream){
- uhd::set_thread_priority_safe();
-
- uhd::tx_metadata_t md;
- const size_t max_samps_per_packet = tx_stream->get_max_num_samps();
- std::vector<char> buff(max_samps_per_packet*uhd::convert::get_bytes_per_item(tx_cpu));
- std::vector<void *> buffs;
- for (size_t ch = 0; ch < tx_stream->get_num_channels(); ch++)
- buffs.push_back(&buff.front()); //same buffer for each channel
-
- //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
- std::srand( time(NULL) );
- while(not boost::this_thread::interruption_requested()){
- size_t total_num_samps = rand() % 100000;
- size_t num_acc_samps = 0;
- float timeout = 1;
-
- usrp->set_time_now(uhd::time_spec_t(0.0));
- while(num_acc_samps < total_num_samps){
-
- //send a single packet
- num_tx_samps += tx_stream->send(buffs, max_samps_per_packet, md, timeout);
-
- num_acc_samps += std::min(total_num_samps-num_acc_samps, tx_stream->get_max_num_samps());
- }
- //send a mini EOB packet
- md.end_of_burst = true;
- tx_stream->send("", 0, md);
- }
-}
-
-void tx_hammer_async_helper(uhd::tx_streamer::sptr tx_stream){
- //setup variables and allocate buffer
- uhd::async_metadata_t async_md;
-
- while (not boost::this_thread::interruption_requested()){
-
- if (not tx_stream->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;
- std::string rx_otw, tx_otw;
- std::string rx_cpu, tx_cpu;
- std::string mode;
-
- //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), "if random, specify 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)")
- ("rx_otw", po::value<std::string>(&rx_otw)->default_value("sc16"), "specify the over-the-wire sample mode for RX")
- ("tx_otw", po::value<std::string>(&tx_otw)->default_value("sc16"), "specify the over-the-wire sample mode for TX")
- ("rx_cpu", po::value<std::string>(&rx_cpu)->default_value("fc32"), "specify the host/cpu sample mode for RX")
- ("tx_cpu", po::value<std::string>(&tx_cpu)->default_value("fc32"), "specify the host/cpu sample mode for TX")
- ("mode", po::value<std::string>(&mode)->default_value("none"), "multi-channel sync mode option: none, mimo")
- ;
- 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") or (vm.count("rx_rate") + vm.count("tx_rate")) == 0){
- //std::cout << boost::format("UHD Transport Hammer - %s") % desc << std::endl;
- std::cout <<
- "UHD Transport Hammer: a transport layer stress test that continuously\n"
- "calls for random amounts of TX and RX samples\n\n";
- std::cout << desc << std::endl <<
- " 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, uhd::device::USRP);
- if (not device_addrs.empty() and device_addrs.at(0).get("type", "") == "usrp1"){
- std::cerr << "*** Warning! ***" << std::endl;
- std::cerr << "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;
-
- if (mode == "mimo"){
- usrp->set_clock_source("mimo", 0);
- usrp->set_time_source("mimo", 0);
- boost::this_thread::sleep(boost::posix_time::seconds(1));
- }
-
- boost::thread_group thread_group;
-
- //spawn the receive test thread
- if (vm.count("rx_rate")){
- usrp->set_rx_rate(rx_rate);
- //create a receive streamer
- uhd::stream_args_t stream_args(rx_cpu, rx_otw);
- for (size_t ch = 0; ch < usrp->get_num_mboards(); ch++) //linear channel mapping
- stream_args.channels.push_back(ch);
- uhd::rx_streamer::sptr rx_stream = usrp->get_rx_stream(stream_args);
- thread_group.create_thread(boost::bind(&rx_hammer, usrp, rx_cpu, rx_stream));
- }
-
- //spawn the transmit test thread
- if (vm.count("tx_rate")){
- usrp->set_tx_rate(tx_rate);
- //create a transmit streamer
- uhd::stream_args_t stream_args(tx_cpu, tx_otw);
- for (size_t ch = 0; ch < usrp->get_num_mboards(); ch++) //linear channel mapping
- stream_args.channels.push_back(ch);
- uhd::tx_streamer::sptr tx_stream = usrp->get_tx_stream(stream_args);
- thread_group.create_thread(boost::bind(&tx_hammer, usrp, tx_cpu, tx_stream));
- thread_group.create_thread(boost::bind(&tx_hammer_async_helper, tx_stream));
- }
-
- //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(
- "Transport Hammer 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 EXIT_SUCCESS;
-}
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