//===================================================== // File : x86_perf_analyzer.hh // Author : L. Plagne <laurent.plagne@edf.fr)> // Copyright (C) EDF R&D, mar d�c 3 18:59:35 CET 2002 //===================================================== // // 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 2 // 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, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. // #ifndef _X86_PERF_ANALYSER_HH #define _X86_PERF_ANALYSER_HH #include "x86_timer.hh" #include "bench_parameter.hh" template<class ACTION> class X86_Perf_Analyzer{ public: X86_Perf_Analyzer( unsigned long long nb_sample=DEFAULT_NB_SAMPLE):_nb_sample(nb_sample),_chronos() { MESSAGE("X86_Perf_Analyzer Ctor"); _chronos.find_frequency(); }; X86_Perf_Analyzer( const X86_Perf_Analyzer & ){ INFOS("Copy Ctor not implemented"); exit(0); }; ~X86_Perf_Analyzer( void ){ MESSAGE("X86_Perf_Analyzer Dtor"); }; inline double eval_mflops(int size) { ACTION action(size); int nb_loop=5; double calculate_time=0.0; double baseline_time=0.0; for (int j=0 ; j < nb_loop ; j++){ _chronos.clear(); for(int i=0 ; i < _nb_sample ; i++) { _chronos.start(); action.initialize(); action.calculate(); _chronos.stop(); _chronos.add_get_click(); } calculate_time += double(_chronos.get_shortest_clicks())/_chronos.frequency(); if (j==0) action.check_result(); _chronos.clear(); for(int i=0 ; i < _nb_sample ; i++) { _chronos.start(); action.initialize(); _chronos.stop(); _chronos.add_get_click(); } baseline_time+=double(_chronos.get_shortest_clicks())/_chronos.frequency(); } double corrected_time = (calculate_time-baseline_time)/double(nb_loop); // INFOS("_nb_sample="<<_nb_sample); // INFOS("baseline_time="<<baseline_time); // INFOS("calculate_time="<<calculate_time); // INFOS("corrected_time="<<corrected_time); // cout << size <<" "<<baseline_time<<" "<<calculate_time<<" "<<corrected_time<<" "<<action.nb_op_base() << endl; return action.nb_op_base()/(corrected_time*1000000.0); //return action.nb_op_base()/(calculate_time*1000000.0); } private: X86_Timer _chronos; unsigned long long _nb_sample; }; #endif