| //===================================================== |
| // 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 |