阿里数据库性能大赛初赛，正确性检验过了，性能测试总是初始化未完成就执行读写，很难受
Complete engine_race/engine_race.[h,cc], and execute
make
to build your own engine
For quick start, we have already implemented a simple example engine in engine_example, you can view it and execute
make TARGET_ENGINE=engine_example
to build this example engine