摘要
医院HIS系统数据库性能的优化是通过调节规划将数据库服务器的网络流量、磁盘I/O和CPU时间减到最小,使每个查询的响应时间最短并最大限度地提高整个数据库服务器的吞吐量。性能问题的考虑应贯穿于HIS开发阶段的全过程,而不应只在最后实现系统时才考虑性能问题。许多使性能得到显著提高的事宜可通过开始时仔细设计得以实现。为达到此目的,需要了解HIS应用程序的需求和数据的逻辑和物理结构,并在相互冲突的数据库使用之间进行权衡,实现医院HIS系统数据库性能的最优化。
To fulfill the performance optimization for database of HIS, the shortest query response time and the highest throughput of database server are realized through the minimization of the network flow, disc I/O and CPU time. The performance optimization should exist throughout the development of HIS, so the requirements of HIS applications, the logical construction and physical structure of data, the balance of conflicting databases should be involved in.
出处
《医疗卫生装备》
CAS
2005年第2期32-33,共2页
Chinese Medical Equipment Journal
