timeval 计时器

	timeval start, end;gettimeofday(&start, NULL);gettimeofday(&end, NULL);float time_use = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_usec - start.tv_usec);//微秒std::cout << "time_use hOutputTex is " << time_use / 1000 << " ms" << std::endl;

timeval 计时器

	timeval start, end;gettimeofday(&start, NULL);gettimeofday(&end, NULL);float time_use = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_usec - start.tv_usec);//微秒std::cout << "time_use hOutputTex is " << time_use / 1000 << " ms" << std::endl;