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  1.  
  2. #include <iostream>
  3. #include <chrono>
  4.  
  5. int main() {
  6.     std::cout << "Starte CPU-Berechnung..." << std::endl;
  7.  
  8.     auto start = std::chrono::high_resolution_clock::now();
  9.  
  10.     // Wir zaehlen so schnell wie moeglich auf dem normalen Prozessor
  11.     unsigned long long zaehler = 0;
  12.     for (unsigned long long i = 0; i < 500000000; ++i) {
  13.         zaehler += i;
  14.     }
  15.  
  16.     auto ende = std::chrono::high_resolution_clock::now();
  17.     std::chrono::duration<double> dauer = ende - start;
  18.  
  19.     std::cout << "Ergebnis: " << zaehler << std::endl;
  20.     std::cout << "Zeit auf der CPU: " << dauer.count() << " Sekunden" << std::endl;
  21.  
  22.     return 0;
  23. }
Success #stdin #stdout 0s 5280KB
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stdin
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Standard input is empty
stdout
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Starte CPU-Berechnung...
Ergebnis: 124999999750000000
Zeit auf der CPU: 9.1e-08 Sekunden
https://ideone.com/dljtY2
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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