The memory usage is a little high

[xl95988]

[qicosmos]

死循环创建连接，会导致创建非常多的连接，因为内部发现如果连接池没有连接了，就会创建新的连接
https://github.com/qicosmos/ormpp/blob/master/include/connection_pool.hpp#L47

[xl95988]

I don't agree with you. I set four connections when initializing the connection pool, so 'https://github.com/qicosmos/ormpp/blob/master/include/connection_pool.hpp#L47' is never execute.