diff options
| -rw-r--r-- | host/examples/benchmark_rate.cpp | 152 |
1 files changed, 120 insertions, 32 deletions
diff --git a/host/examples/benchmark_rate.cpp b/host/examples/benchmark_rate.cpp index f8c0342c0..84b9611e1 100644 --- a/host/examples/benchmark_rate.cpp +++ b/host/examples/benchmark_rate.cpp @@ -1,5 +1,5 @@ // -// Copyright 2011-2013 Ettus Research LLC +// Copyright 2011-2015 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 @@ -24,12 +24,16 @@ #include <boost/thread/thread.hpp> #include <boost/algorithm/string.hpp> #include <boost/lexical_cast.hpp> +#include <boost/atomic.hpp> #include <iostream> #include <complex> #include <cstdlib> namespace po = boost::program_options; +const double INIT_DELAY = 0.05; // 50mS initial delay before transmit +typedef boost::atomic<bool> atomic_bool; + /*********************************************************************** * Test result variables **********************************************************************/ @@ -47,7 +51,8 @@ void benchmark_rx_rate( uhd::usrp::multi_usrp::sptr usrp, const std::string &rx_cpu, uhd::rx_streamer::sptr rx_stream, - bool random_nsamps + bool random_nsamps, + atomic_bool& burst_timer_elapsed ) { uhd::set_thread_priority_safe(); @@ -68,31 +73,30 @@ void benchmark_rx_rate( const double rate = usrp->get_rx_rate(); uhd::stream_cmd_t cmd(uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS); - cmd.time_spec = usrp->get_time_now() + uhd::time_spec_t(0.05); + cmd.time_spec = usrp->get_time_now() + uhd::time_spec_t(INIT_DELAY); cmd.stream_now = (buffs.size() == 1); rx_stream->issue_stream_cmd(cmd); - while (not boost::this_thread::interruption_requested()){ + const float burst_pkt_time = std::max(0.100, (2 * max_samps_per_packet/rate)); + float recv_timeout = burst_pkt_time + INIT_DELAY; + + while (true) { + if (burst_timer_elapsed.load(boost::memory_order_acq_rel)) { + rx_stream->issue_stream_cmd(uhd::stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS); + } if (random_nsamps) { cmd.num_samps = rand() % max_samps_per_packet; rx_stream->issue_stream_cmd(cmd); } try { - num_rx_samps += rx_stream->recv(buffs, max_samps_per_packet, md)*rx_stream->get_num_channels(); + num_rx_samps += rx_stream->recv(buffs, max_samps_per_packet, md, recv_timeout)*rx_stream->get_num_channels(); + recv_timeout = burst_pkt_time; } catch (uhd::io_error &e) { std::cerr << "Caught an IO exception. " << std::endl; std::cerr << e.what() << std::endl; - return; } - catch (...) { - /* apparently, the boost thread interruption can sometimes result in - throwing exceptions not of type boost::exception, this catch allows - this thread to still attempt to issue the STREAM_MODE_STOP_CONTINUOUS - */ - break; - } //handle the error codes switch(md.error_code){ @@ -112,13 +116,18 @@ void benchmark_rx_rate( num_overflows++; break; + case uhd::rx_metadata_t::ERROR_CODE_TIMEOUT: + // If we stopped the streamer, then we expect this at some point + if (burst_timer_elapsed.load(boost::memory_order_acq_rel)) { + return; + } + // Otherwise, it's an error default: std::cerr << "Receiver error: " << md.strerror() << std::endl; std::cerr << "Unexpected error on recv, continuing..." << std::endl; break; } } - rx_stream->issue_stream_cmd(uhd::stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS); } /*********************************************************************** @@ -128,6 +137,7 @@ void benchmark_tx_rate( uhd::usrp::multi_usrp::sptr usrp, const std::string &tx_cpu, uhd::tx_streamer::sptr tx_stream, + atomic_bool& burst_timer_elapsed, bool random_nsamps=false ) { uhd::set_thread_priority_safe(); @@ -139,7 +149,8 @@ void benchmark_tx_rate( //setup variables and allocate buffer uhd::tx_metadata_t md; - md.time_spec = usrp->get_time_now() + uhd::time_spec_t(0.05); + md.time_spec = usrp->get_time_now() + uhd::time_spec_t(INIT_DELAY); + md.has_time_spec = (tx_stream->get_num_channels() > 1); 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<const void *> buffs; @@ -148,8 +159,8 @@ void benchmark_tx_rate( md.has_time_spec = (buffs.size() != 1); if (random_nsamps) { - std::srand( (unsigned int)time(NULL) ); - while(not boost::this_thread::interruption_requested()){ + std::srand((unsigned int)time(NULL)); + while (not burst_timer_elapsed.load(boost::memory_order_acq_rel)) { size_t total_num_samps = rand() % max_samps_per_packet; size_t num_acc_samps = 0; const float timeout = 1; @@ -162,7 +173,7 @@ void benchmark_tx_rate( } } } else { - while (not boost::this_thread::interruption_requested()){ + while (not burst_timer_elapsed.load(boost::memory_order_acq_rel)) { num_tx_samps += tx_stream->send(buffs, max_samps_per_packet, md)*tx_stream->get_num_channels(); md.has_time_spec = false; } @@ -173,13 +184,24 @@ void benchmark_tx_rate( tx_stream->send(buffs, 0, md); } -void benchmark_tx_rate_async_helper(uhd::tx_streamer::sptr tx_stream){ +void benchmark_tx_rate_async_helper( + uhd::tx_streamer::sptr tx_stream, + atomic_bool& burst_timer_elapsed +) { //setup variables and allocate buffer uhd::async_metadata_t async_md; + bool exit_flag = false; - while (not boost::this_thread::interruption_requested()){ + while (true) { + if (burst_timer_elapsed.load(boost::memory_order_acq_rel)) { + exit_flag = true; + } - if (not tx_stream->recv_async_msg(async_md)) continue; + if (not tx_stream->recv_async_msg(async_md)) { + if (exit_flag == true) + return; + continue; + } //handle the error codes switch(async_md.event_code){ @@ -216,9 +238,10 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ double rx_rate, tx_rate; std::string rx_otw, tx_otw; std::string rx_cpu, tx_cpu; - std::string mode; + std::string mode, ref, pps; std::string channel_list; bool random_nsamps = false; + atomic_bool burst_timer_elapsed(false); //setup the program options po::options_description desc("Allowed options"); @@ -232,7 +255,9 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ ("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") + ("ref", po::value<std::string>(&ref), "clock reference (internal, external, mimo, gpsdo)") + ("pps", po::value<std::string>(&pps), "PPS source (internal, external, mimo, gpsdo)") + ("mode", po::value<std::string>(&mode), "DEPRECATED - use \"ref\" and \"pps\" instead (none, mimo)") ("random", "Run with random values of samples in send() and recv() to stress-test the I/O.") ("channels", po::value<std::string>(&channel_list)->default_value("0"), "which channel(s) to use (specify \"0\", \"1\", \"0,1\", etc)") ; @@ -257,6 +282,16 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ random_nsamps = true; } + if (vm.count("mode")) { + if (vm.count("pps") or vm.count("ref")) { + std::cout << "ERROR: The \"mode\" parameter cannot be used with the \"ref\" and \"pps\" parameters.\n" << std::endl; + return -1; + } else if (mode == "mimo") { + ref = pps = "mimo"; + std::cout << "The use of the \"mode\" parameter is deprecated. Please use \"ref\" and \"pps\" parameters instead\n" << std::endl; + } + } + //create a usrp device std::cout << std::endl; uhd::device_addrs_t device_addrs = uhd::device::find(args, uhd::device::USRP); @@ -267,14 +302,57 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ 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; + int num_mboards = usrp->get_num_mboards(); - 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; + + if(vm.count("ref")) + { + if (ref == "mimo") + { + if (num_mboards != 2) { + std::cerr << "ERROR: ref = \"mimo\" implies 2 motherboards; your system has " << num_mboards << " boards" << std::endl; + return -1; + } + usrp->set_clock_source("mimo",1); + } else { + usrp->set_clock_source(ref); + } + + if(ref != "internal") { + std::cout << "Now confirming lock on clock signals..." << std::endl; + bool is_locked = false; + boost::system_time end_time = boost::get_system_time() + boost::posix_time::milliseconds(80); + for (int i = 0; i < num_mboards; i++) { + if (ref == "mimo" and i == 0) continue; + while((is_locked = usrp->get_mboard_sensor("ref_locked",i).to_bool()) == false and + boost::get_system_time() < end_time ) + { + boost::this_thread::sleep(boost::posix_time::milliseconds(1)); + } + if (is_locked == false) { + std::cerr << "ERROR: Unable to confirm clock signal locked on board:" << i << std::endl; + return -1; + } + is_locked = false; + } + } } - boost::thread_group thread_group; + if(vm.count("pps")) + { + if(pps == "mimo") + { + if (num_mboards != 2) { + std::cerr << "ERROR: ref = \"mimo\" implies 2 motherboards; your system has " << num_mboards << " boards" << std::endl; + return -1; + } + //make mboard 1 a slave over the MIMO Cable + usrp->set_time_source("mimo", 1); + } else { + usrp->set_time_source(pps); + } + } //detect which channels to use std::vector<std::string> channel_strings; @@ -288,6 +366,16 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ else channel_nums.push_back(boost::lexical_cast<int>(channel_strings[ch])); } + std::cout << boost::format("Setting device timestamp to 0...") << std::endl; + + if (pps == "mimo" or ref == "mimo" or channel_nums.size() == 1) + { + usrp->set_time_now(0.0); + } else { + usrp->set_time_unknown_pps(uhd::time_spec_t(0.0)); + } + + //spawn the receive test thread if (vm.count("rx_rate")){ usrp->set_rx_rate(rx_rate); @@ -295,7 +383,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ uhd::stream_args_t stream_args(rx_cpu, rx_otw); stream_args.channels = channel_nums; uhd::rx_streamer::sptr rx_stream = usrp->get_rx_stream(stream_args); - thread_group.create_thread(boost::bind(&benchmark_rx_rate, usrp, rx_cpu, rx_stream, random_nsamps)); + thread_group.create_thread(boost::bind(&benchmark_rx_rate, usrp, rx_cpu, rx_stream, random_nsamps, boost::ref(burst_timer_elapsed))); } //spawn the transmit test thread @@ -305,8 +393,8 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ uhd::stream_args_t stream_args(tx_cpu, tx_otw); stream_args.channels = channel_nums; uhd::tx_streamer::sptr tx_stream = usrp->get_tx_stream(stream_args); - thread_group.create_thread(boost::bind(&benchmark_tx_rate, usrp, tx_cpu, tx_stream, random_nsamps)); - thread_group.create_thread(boost::bind(&benchmark_tx_rate_async_helper, tx_stream)); + thread_group.create_thread(boost::bind(&benchmark_tx_rate, usrp, tx_cpu, tx_stream, boost::ref(burst_timer_elapsed), random_nsamps)); + thread_group.create_thread(boost::bind(&benchmark_tx_rate_async_helper, tx_stream, boost::ref(burst_timer_elapsed))); } //sleep for the required duration @@ -315,7 +403,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ boost::this_thread::sleep(boost::posix_time::seconds(secs) + boost::posix_time::microseconds(usecs)); //interrupt and join the threads - thread_group.interrupt_all(); + burst_timer_elapsed.store(true, boost::memory_order_acq_rel); thread_group.join_all(); //print summary |