全局池存储对于数据库服务器来说是全局性的结构。
Global pool stores structures that are global to the database server.
例如，全局池包含消息队列，其中用于网络通信的poll线程存放来客户机的消息。
For example, the global pool contains the message queues where poll threads for network communications deposit messages from clients.
因此他的结论是不应该将内存释放回一个全局的内存池，而是将内存保持为针对特定目而初始化的状态。
His conclusion was that instead of freeing the memory back to a global pool, he would have the memory remain initialized for its intended purpose.
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