x86_timer.hh
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1 //=====================================================
2 // File : x86_timer.hh
3 // Author : L. Plagne <laurent.plagne@edf.fr)>
4 // Copyright (C) EDF R&D, mar d�c 3 18:59:35 CET 2002
5 //=====================================================
6 //
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License
9 // as published by the Free Software Foundation; either version 2
10 // of the License, or (at your option) any later version.
11 //
12 // This program is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License
17 // along with this program; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 //
20 #ifndef _X86_TIMER_HH
21 #define _X86_TIMER_HH
22 
23 #include <sys/time.h>
24 #include <sys/resource.h>
25 #include <unistd.h>
26 #include <sys/times.h>
27 //#include "system_time.h"
28 #define u32 unsigned int
29 #include <asm/msr.h>
30 #include "utilities.h"
31 #include <map>
32 #include <fstream>
33 #include <string>
34 #include <iostream>
35 
36 // frequence de la becanne en Hz
37 //#define FREQUENCY 648000000
38 //#define FREQUENCY 1400000000
39 #define FREQUENCY 1695000000
40 
41 using namespace std;
42 
43 
44 class X86_Timer {
45 
46 public :
47 
48  X86_Timer( void ):_frequency(FREQUENCY),_nb_sample(0)
49  {
50  MESSAGE("X86_Timer Default Ctor");
51  }
52 
53  inline void start( void ){
54 
55  rdtsc(_click_start.n32[0],_click_start.n32[1]);
56 
57  }
58 
59 
60  inline void stop( void ){
61 
62  rdtsc(_click_stop.n32[0],_click_stop.n32[1]);
63 
64  }
65 
66 
67  inline double frequency( void ){
68  return _frequency;
69  }
70 
72 
73  return (_click_stop.n64-_click_start.n64)/double(FREQUENCY);
74 
75 
76  }
77 
78  unsigned long long get_click( void ){
79 
80  return (_click_stop.n64-_click_start.n64);
81 
82  }
83 
84  inline void find_frequency( void ){
85 
86  time_t initial, final;
87  int dummy=2;
88 
89  initial = time(0);
90  start();
91  do {
92  dummy+=2;
93  }
94  while(time(0)==initial);
95  // On est au debut d'un cycle d'une seconde !!!
96  initial = time(0);
97  start();
98  do {
99  dummy+=2;
100  }
101  while(time(0)==initial);
102  final=time(0);
103  stop();
104  // INFOS("fine grained time : "<< get_elapsed_time_in_second());
105  // INFOS("coarse grained time : "<< final-initial);
106  _frequency=_frequency*get_elapsed_time_in_second()/double(final-initial);
108 
109  }
110 
111  void add_get_click( void ){
112 
113  _nb_sample++;
114  _counted_clicks[get_click()]++;
115  fill_history_clicks();
116 
117  }
118 
119  void dump_statistics(string filemane){
120 
121  ofstream outfile (filemane.c_str(),ios::out) ;
122 
123  std::map<unsigned long long , unsigned long long>::iterator itr;
124  for(itr=_counted_clicks.begin() ; itr!=_counted_clicks.end() ; itr++)
125  {
126  outfile << (*itr).first << " " << (*itr).second << endl ;
127  }
128 
129  outfile.close();
130 
131  }
132 
133  void dump_history(string filemane){
134 
135  ofstream outfile (filemane.c_str(),ios::out) ;
136 
137 
138 
139  for(int i=0 ; i<_history_mean_clicks.size() ; i++)
140  {
141  outfile << i << " "
142  << _history_mean_clicks[i] << " "
143  << _history_shortest_clicks[i] << " "
144  << _history_most_occured_clicks[i] << endl ;
145  }
146 
147  outfile.close();
148 
149  }
150 
151 
152 
153  double get_mean_clicks( void ){
154 
155  std::map<unsigned long long,unsigned long long>::iterator itr;
156 
157  unsigned long long mean_clicks=0;
158 
159  for(itr=_counted_clicks.begin() ; itr!=_counted_clicks.end() ; itr++)
160  {
161 
162  mean_clicks+=(*itr).second*(*itr).first;
163  }
164 
165  return mean_clicks/double(_nb_sample);
166 
167  }
168 
169  double get_shortest_clicks( void ){
170 
171  return double((*_counted_clicks.begin()).first);
172 
173  }
174 
175  void fill_history_clicks( void ){
176 
177  _history_mean_clicks.push_back(get_mean_clicks());
178  _history_shortest_clicks.push_back(get_shortest_clicks());
179  _history_most_occured_clicks.push_back(get_most_occured_clicks());
180 
181  }
182 
183 
184  double get_most_occured_clicks( void ){
185 
186  unsigned long long moc=0;
187  unsigned long long max_occurence=0;
188 
189  std::map<unsigned long long,unsigned long long>::iterator itr;
190 
191  for(itr=_counted_clicks.begin() ; itr!=_counted_clicks.end() ; itr++)
192  {
193 
194  if (max_occurence<=(*itr).second){
195  max_occurence=(*itr).second;
196  moc=(*itr).first;
197  }
198  }
199 
200  return double(moc);
201 
202  }
203 
204  void clear( void )
205  {
206  _counted_clicks.clear();
207 
208  _history_mean_clicks.clear();
209  _history_shortest_clicks.clear();
210  _history_most_occured_clicks.clear();
211 
212  _nb_sample=0;
213  }
214 
215 
216 
217 private :
218 
219  union
220  {
221  unsigned long int n32[2] ;
222  unsigned long long n64 ;
223  } _click_start;
224 
225  union
226  {
227  unsigned long int n32[2] ;
228  unsigned long long n64 ;
229  } _click_stop;
230 
231  double _frequency ;
232 
233  map<unsigned long long,unsigned long long> _counted_clicks;
234 
235  vector<double> _history_mean_clicks;
236  vector<double> _history_shortest_clicks;
238 
239  unsigned long long _nb_sample;
240 
241 
242 
243 };
244 
245 
246 #endif
X86_Timer::n64
unsigned long long n64
Definition: x86_timer.hh:222
X86_Timer::find_frequency
void find_frequency(void)
Definition: x86_timer.hh:84
X86_Timer::dump_statistics
void dump_statistics(string filemane)
Definition: x86_timer.hh:119
X86_Timer::get_shortest_clicks
double get_shortest_clicks(void)
Definition: x86_timer.hh:169
FREQUENCY
#define FREQUENCY
Definition: x86_timer.hh:39
X86_Timer::_history_mean_clicks
vector< double > _history_mean_clicks
Definition: x86_timer.hh:235
initial
Values initial
Definition: OdometryOptimize.cpp:2
X86_Timer::clear
void clear(void)
Definition: x86_timer.hh:204
X86_Timer::_counted_clicks
map< unsigned long long, unsigned long long > _counted_clicks
Definition: x86_timer.hh:233
pybind_wrapper_test_script.dummy
dummy
Definition: pybind_wrapper_test_script.py:42
X86_Timer::_nb_sample
unsigned long long _nb_sample
Definition: x86_timer.hh:239
X86_Timer::X86_Timer
X86_Timer(void)
Definition: x86_timer.hh:48
MESSAGE
#define MESSAGE(chain)
Definition: 3rdparty/Eigen/bench/btl/generic_bench/utils/utilities.h:76
X86_Timer::get_mean_clicks
double get_mean_clicks(void)
Definition: x86_timer.hh:153
X86_Timer::_history_most_occured_clicks
vector< double > _history_most_occured_clicks
Definition: x86_timer.hh:237
X86_Timer::start
void start(void)
Definition: x86_timer.hh:53
X86_Timer::dump_history
void dump_history(string filemane)
Definition: x86_timer.hh:133
X86_Timer::stop
void stop(void)
Definition: x86_timer.hh:60
X86_Timer::add_get_click
void add_get_click(void)
Definition: x86_timer.hh:111
X86_Timer::get_click
unsigned long long get_click(void)
Definition: x86_timer.hh:78
time
#define time
Definition: timeAdaptAutoDiff.cpp:31
X86_Timer::_history_shortest_clicks
vector< double > _history_shortest_clicks
Definition: x86_timer.hh:236
out
std::ofstream out("Result.txt")
std
Definition: BFloat16.h:88
X86_Timer::_frequency
double _frequency
Definition: x86_timer.hh:231
initial
Definition: testScenarioRunner.cpp:148
X86_Timer::fill_history_clicks
void fill_history_clicks(void)
Definition: x86_timer.hh:175
X86_Timer
Definition: x86_timer.hh:44
X86_Timer::get_elapsed_time_in_second
double get_elapsed_time_in_second(void)
Definition: x86_timer.hh:71
i
int i
Definition: BiCGSTAB_step_by_step.cpp:9
X86_Timer::frequency
double frequency(void)
Definition: x86_timer.hh:67
X86_Timer::get_most_occured_clicks
double get_most_occured_clicks(void)
Definition: x86_timer.hh:184


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autogenerated on Sat Nov 16 2024 04:09:44