int main( int argc, char * argv[]) { try { bind_to_processor( 0); boost::program_options::options_description desc("allowed options"); desc.add_options() ("help", "help message") ("fpu,f", boost::program_options::value< bool >( & preserve_fpu), "preserve FPU registers") ("jobs,j", boost::program_options::value< boost::uint64_t >( & jobs), "jobs to run"); boost::program_options::variables_map vm; boost::program_options::store( boost::program_options::parse_command_line( argc, argv, desc), vm); boost::program_options::notify( vm); if ( vm.count("help") ) { std::cout << desc << std::endl; return EXIT_SUCCESS; } stack_allocator stack_alloc; fc = boost::context::make_fcontext( stack_alloc.allocate( stack_allocator::default_stacksize() ), stack_allocator::default_stacksize(), foo); boost::uint64_t res = measure_time_fc().count(); std::cout << "fcontext_t: average of " << res << " nano seconds" << std::endl; # if __cplusplus >= 201103L res = measure_time_ec().count(); std::cout << "execution_context: average of " << res << " nano seconds" << std::endl; # endif #ifdef BOOST_CONTEXT_CYCLE res = measure_cycles_fc(); std::cout << "fcontext_t: average of " << res << " cpu cycles" << std::endl; # if __cplusplus >= 201103L res = measure_cycles_ec(); std::cout << "execution_context: average of " << res << " cpu cycles" << std::endl; # endif #endif return EXIT_SUCCESS; } catch ( std::exception const& e) { std::cerr << "exception: " << e.what() << std::endl; } catch (...) { std::cerr << "unhandled exception" << std::endl; } return EXIT_FAILURE; }
int main( int argc, char * argv[]) { try { bind_to_processor( 0); boost::program_options::options_description desc("allowed options"); desc.add_options() ("help", "help message") ("jobs,j", boost::program_options::value< boost::uint64_t >( & jobs), "jobs to run"); boost::program_options::variables_map vm; boost::program_options::store( boost::program_options::parse_command_line( argc, argv, desc), vm); boost::program_options::notify( vm); if ( vm.count("help") ) { std::cout << desc << std::endl; return EXIT_SUCCESS; } boost::uint64_t res = measure_time_fc().count(); std::cout << "fcontext_t: average of " << res << " nano seconds" << std::endl; #ifdef BOOST_CONTEXT_CYCLE res = measure_cycles_fc(); std::cout << "fcontext_t: average of " << res << " cpu cycles" << std::endl; #endif return EXIT_SUCCESS; } catch ( std::exception const& e) { std::cerr << "exception: " << e.what() << std::endl; } catch (...) { std::cerr << "unhandled exception" << std::endl; } return EXIT_FAILURE; }