作业调度是体现公平对待用户作业，提高系统响应时间，进而提高系统性能的关键因素。
Job scheduling is one of the most factors to run users' jobs, which belong to difficult users fairly, reduce the response time of cluster, and improve the performance of cluster.
系统(或管理员)定期合并树木以提高性能—森林中的树木越少，查询响应时间就越好。
The system (or an administrator) merges stands periodically to improve performance-the fewer stands in a forest, the better the query response times.
这可以在中间层服务器上减少响应时间，而且由于减少了对Library Server的连接和调用数量，这也提高了系统的可伸缩性。
This can reduce response times on the middle-tier server, and also improve the scalability of the system by reducing the number of connections and calls to the Library server.
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