blob: 37ea21dcc81750813a059af0addc4a5eaaaee750 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
//=====================================================
// 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
|
