This group contains simple tools for measuring the performance of algorithms.
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| template<class F > |
| TimeStamp | runningTimeTest (F f, double min_time=10, unsigned int *num=NULL, TimeStamp *full_time=NULL) |
| | Tool to measure the running time more exactly. More...
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| std::ostream & | operator<< (std::ostream &os, const TimeStamp &t) |
| | Prints the time counters. More...
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| TimeStamp lemon::runningTimeTest |
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F |
f, |
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double |
min_time = 10, |
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unsigned int * |
num = NULL, |
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TimeStamp * |
full_time = NULL |
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) |
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This function calls f several times and returns the average running time. The number of the executions will be choosen in such a way that the full real running time will be roughly between min_time and 2*min_time.
- Parameters
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| f | the function object to be measured. |
| min_time | the minimum total running time. |
- Return values
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| num | if it is not NULL, then the actual number of execution of f will be written into *num. |
| full_time | if it is not NULL, then the actual total running time will be written into *full_time. |
- Returns
- The average running time of
f.
| std::ostream & operator<< |
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std::ostream & |
os, |
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const TimeStamp & |
t |
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) |
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related |
Prints the time counters in the following form:
u: XX.XXs s: XX.XXs cu: XX.XXs cs: XX.XXs real: XX.XXs
where the values are the
u: user cpu time,
s: system cpu time,
cu: user cpu time of children,
cs: system cpu time of children,
real: real time.
- Note
- On
WIN32 platform the cummulative values are not calculated.