milvus/internal/core/unittest/test_utils/Timer.h

40 lines
951 B
C++

#pragma once
#include <chrono>
class Timer {
public:
Timer() {
reset();
}
double
get_overall_seconds() {
using namespace std::chrono;
auto now = high_resolution_clock::now();
auto diff = now - init_record;
step_record = now;
return (double)duration_cast<microseconds>(diff).count() * 1e-6;
}
double
get_step_seconds() {
using namespace std::chrono;
auto now = high_resolution_clock::now();
auto diff = now - step_record;
step_record = now;
return (double)duration_cast<microseconds>(diff).count() * 1e-6;
}
void
reset() {
using namespace std::chrono;
step_record = init_record = high_resolution_clock::now();
}
private:
using nanosecond_t = std::chrono::time_point<std::chrono::system_clock, std::chrono::nanoseconds>;
private:
nanosecond_t init_record;
nanosecond_t step_record;
};