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| author | Martin Braun <martin.braun@ettus.com> | 2014-10-27 16:31:31 +0100 | 
|---|---|---|
| committer | Martin Braun <martin.braun@ettus.com> | 2014-11-13 01:17:18 +0100 | 
| commit | 864f84b5ccac064f8b011a3c6c63ea4a5f280b74 (patch) | |
| tree | 2f5a5d3ad8c054aa5df24134e86bd3591797c243 /host/examples/transport_hammer.cpp | |
| parent | 360c0e5c778e54053e127ba88dcd013eab0b750f (diff) | |
| download | uhd-864f84b5ccac064f8b011a3c6c63ea4a5f280b74.tar.gz uhd-864f84b5ccac064f8b011a3c6c63ea4a5f280b74.tar.bz2 uhd-864f84b5ccac064f8b011a3c6c63ea4a5f280b74.zip | |
examples: Merged benchmark_rate and transport_hammer
Diffstat (limited to 'host/examples/transport_hammer.cpp')
| -rw-r--r-- | host/examples/transport_hammer.cpp | 280 | 
1 files changed, 0 insertions, 280 deletions
| diff --git a/host/examples/transport_hammer.cpp b/host/examples/transport_hammer.cpp deleted file mode 100644 index 32e344e3e..000000000 --- a/host/examples/transport_hammer.cpp +++ /dev/null @@ -1,280 +0,0 @@ -// -// 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; -} | 
