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C++11 성능 측정을 위한 간단히 ms 단위 측정 코드
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#include <iostream> | |
#include <chrono> | |
#include <thread> | |
/** | |
# 성능 측정을 위한 간단히 ms 단위 측정 코드 | |
- C++11 코드로 작성 | |
- 명확하게 하기 위해 일부러 namespace는 사용하지 않음 | |
- chrono_literals 의 ms 등 편리한 operator는 C++14부터 사용 가능 | |
``` | |
$ g++ -std=c++11 duration.cpp | |
$ ./a.out | |
Duration=1000ms | |
$ | |
``` | |
## Reference : | |
- https://en.cppreference.com/w/cpp/thread/sleep_for | |
- https://en.cppreference.com/w/cpp/chrono/system_clock/now | |
- https://en.cppreference.com/w/cpp/chrono/duration/duration_cast | |
*/ | |
int main(int argc, char* argv[]) | |
{ | |
auto in_t = std::chrono::system_clock::now(); | |
std::this_thread::sleep_for(std::chrono::milliseconds(1000)); | |
auto diff_t = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now() - in_t); | |
std::cout << "Duration=" << diff_t.count() << "ms" << std::endl; | |
return 0; | |
} |
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