Google benchmark
1.測量開發的某一段代碼的性能；
2.開發性能測試程序
reference:
https://github.com/google/benchmark.git
https://blog.csdn.net/Tornado1102/article/details/77977720
https://blog.csdn.net/ruiruiafafafa/article/details/80801423
https://www.freesion.com/article/7006234278/