GCC Code Coverage Report

Directory: ./
File: src/PFunctionPerf.cpp
Date: 2025-08-06 14:32:39
Exec Total Coverage
Lines: 95 95 100.0%
Functions: 18 19 94.7%
Branches: 44 44 100.0%
Line Branch Exec Source
1 /***************************************
2 Auteur : Pierre Aubert
3 Mail : pierre.aubert@lapp.in2p3.fr
4 Licence : CeCILL-C
5 ****************************************/
6
7 #include <math.h>
8 #include "PFunctionPerf.h"
9
10 ///Default constructor of PFunctionPerf
11 /** @param name : name of the function to profile
12 */
13 6 PFunctionPerf::PFunctionPerf(const std::string & name){
14
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 6 initialisationPFunctionPerf(name);
15 6 }
16
17 ///Copy constructor of PFunctionPerf
18 /** @param other : class to copy
19 */
20 8 PFunctionPerf::PFunctionPerf(const PFunctionPerf & other){
21
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 8 copyPFunctionPerf(other);
22 8 }
23
24 ///Destructor of PFunctionPerf
25 14 PFunctionPerf::~PFunctionPerf(){
26
27 14 }
28
29 ///Definition of equal operator of PFunctionPerf
30 /** @param other : class to copy
31 * @return copied class
32 */
33 1 PFunctionPerf & PFunctionPerf::operator = (const PFunctionPerf & other){
34 1 copyPFunctionPerf(other);
35 1 return *this;
36 }
37
38 ///Set the name of the function profiled by the current PFunctionPerf
39 /** @param name : name of the function to profile
40 */
41 2 void PFunctionPerf::setName(const std::string & name){
42 2 p_name = name;
43 2 }
44
45 ///Resize the PFunctionPerf by respect to the number of thread which call the function
46 /** @param nbThread : number of threads which call the function
47 */
48 10 void PFunctionPerf::resize(size_t nbThread){
49 10 p_timeBegin.resize(nbThread);
50 10 p_nbCall.resize(nbThread);
51 10 p_fullTime.resize(nbThread);
52 10 p_fullSqrTime.resize(nbThread);
53 10 p_minTime.resize(nbThread);
54 10 p_maxTime.resize(nbThread);
55 10 reset();
56 10 }
57
58 ///Start the timing for one function
59 /** @param threadIndex : index of the current thread to be measured
60 */
61 3990 void PFunctionPerf::start(size_t threadIndex){
62 3990 p_timeBegin[threadIndex] = phoenix_hardware_rdtsc();
63 3992 }
64
65 ///Stop the timing of one function
66 /** @param threadIndex : index of the current thread to be measured
67 */
68 3979 void PFunctionPerf::stop(size_t threadIndex){
69 3979 size_t elapsedTime = phoenix_hardware_rdtsc() - p_timeBegin[threadIndex];
70 3992 double dTime = elapsedTime;
71 3992 p_fullTime[threadIndex] += dTime;
72 3983 p_fullSqrTime[threadIndex] += dTime*dTime;
73
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 3982 if(elapsedTime > p_maxTime[threadIndex]){p_maxTime[threadIndex] = elapsedTime;}
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 3988 if(elapsedTime < p_minTime[threadIndex]){p_minTime[threadIndex] = elapsedTime;}
75 3986 ++(p_nbCall[threadIndex]);
76 3989 }
77
78 ///Reset the profiling
79 /** @param threadIndex : index of the current thread to be measured
80 */
81 41 void PFunctionPerf::reset(size_t threadIndex){
82 41 p_timeBegin[threadIndex] = 0lu;
83 41 p_nbCall[threadIndex] = 0lu;
84 41 p_fullTime[threadIndex] = 0.0;
85 41 p_fullSqrTime[threadIndex] = 0.0;
86 41 p_minTime[threadIndex] = -1lu;
87 41 p_maxTime[threadIndex] = 0lu;
88 41 }
89
90 ///Reset the profiling
91 12 void PFunctionPerf::reset(){
92
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 33 for(size_t i(0lu); i < p_timeBegin.size(); ++i){
93 21 reset(i);
94 }
95 12 }
96
97 ///Sum the given vector
98 /** @param vec : vector of value
99 * @return sum of vector value
100 */
101 template<typename T>
102 115 T reduceVectorVale(const std::vector<T> & vec){
103 115 T sum(0);
104
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 532 for(typename std::vector<T>::const_iterator it(vec.begin()); it != vec.end(); ++it){
105 151 sum += *it;
106 }
107 115 return sum;
108 }
109
110 ///Get the performances of the current function
111 /** @param[out] nbCall : number of time this function was called
112 * @param[out] fullTime : total time of all function calls
113 * @param[out] averageTime : average time of one function calls
114 * @param[out] stdTime : standard deviation between all function calls (if nbCall is small this result can be unrelevant)
115 * @param[out] minTime : minimum time of a single execution
116 * @param[out] maxTime : maximum time of a single execution
117 */
118 27 void PFunctionPerf::getPerf(size_t & nbCall, double & fullTime, double & averageTime, double & stdTime, size_t & minTime, size_t & maxTime) const{
119 27 nbCall = reduceVectorVale(p_nbCall);
120
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 27 if(nbCall != 0lu){
121 22 fullTime = reduceVectorVale(p_fullTime);
122 22 averageTime = fullTime/((double)nbCall);
123 22 stdTime = sqrt((reduceVectorVale(p_fullSqrTime)/((double)nbCall)) - (averageTime*averageTime));
124 22 minTime = reduceVectorVale(p_minTime)*0.5;
125 22 maxTime = reduceVectorVale(p_maxTime)*0.5;
126 }else{
127 5 fullTime = 0.0;
128 5 averageTime = 0.0;
129 5 stdTime = 0.0;
130 5 minTime = 0.0;
131 5 maxTime = 0.0;
132 }
133 27 }
134
135 ///Get the name of the function to profile
136 /** @return name of the function to profile
137 */
138 2 const std::string & PFunctionPerf::getName() const{
139 2 return p_name;
140 }
141
142 ///Print the performance of the function
143 /** @param[out] : out : ostream to be used
144 */
145 16 void PFunctionPerf::print(std::ostream & out) const{
146 16 size_t nbCall(0lu);
147 16 double fullTime(0.0), averageTime(0.0), stdTime(0.0);
148 16 size_t minTime(0lu), maxTime(0lu);
149
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 16 getPerf(nbCall, fullTime, averageTime, stdTime, minTime, maxTime);
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 16 out << "Function "<<p_name<<"(nbCall = " << nbCall << ", fullTime = " << fullTime << " cy, averageTime = " << averageTime << " cy, stdTime = " << stdTime << " cy, minTime = " << minTime << " cy, maxTime = " << maxTime << " cy)" << std::endl;
151 16 }
152
153 ///Print the performance of the function in CSV format
154 /** @param[out] : out : ostream to be used
155 */
156 11 void PFunctionPerf::printCsv(std::ostream & out) const{
157 11 size_t nbCall(0lu);
158 11 double fullTime(0.0), averageTime(0.0), stdTime(0.0);
159 11 size_t minTime(0lu), maxTime(0lu);
160
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 11 getPerf(nbCall, fullTime, averageTime, stdTime, minTime, maxTime);
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 11 out <<p_name<<"," << nbCall << "," << fullTime << "," << averageTime << "," << stdTime << "," << minTime << "," << maxTime << std::endl;
162 11 }
163
164 ///Copy function of PFunctionPerf
165 /** @param other : class to copy
166 */
167 9 void PFunctionPerf::copyPFunctionPerf(const PFunctionPerf & other){
168 9 p_name = other.p_name;
169 9 p_timeBegin = other.p_timeBegin;
170 9 p_nbCall = other.p_nbCall;
171 9 p_fullTime = other.p_fullTime;
172 9 p_fullSqrTime = other.p_fullSqrTime;
173 9 p_minTime = other.p_minTime;
174 9 p_maxTime = other.p_maxTime;
175 9 }
176
177 /** @param name : name of the function to profile
178 */
179 ///Initialisation function of the class PFunctionPerf
180 6 void PFunctionPerf::initialisationPFunctionPerf(const std::string & name){
181 6 p_name = name;
182 6 resize(1lu);
183 6 }
184
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