this is a short snippet to remind how one can calculate time needed by one process

process_timer.cpp

#include <iostream>
#include <ctime>
#include <vector>
#include <algorithm>

int main() {

  // create vector for storing the calculated times needed for a piece of code to finish
  std::vector<float> times;
  int counter = 0;

  // small while loop to get reckognizable results
  while(counter < 1000) {

    auto start = clock();
    std::vector<int> v;
    for(int i = 0; i < 1000; ++i) {
      v.push_back(i);
    }
    auto end = clock();
  
    // calculate the bygone time
    float seconds = (float)(end-start)/CLOCKS_PER_SEC;
    times.push_back(seconds);
    ++counter;
  }

  // calculate the mean bygone time
  float total = 0.0f;
  std::for_each(times.begin(), times.end(), [&total](float value){
    total += value;
  });

  float average = total/times.size();
  std::cout << average << std::endl;
  // number of operations per second
  std::cout << 60/average << std::endl;
  

  return 0;
}