【摘要】 数据库服务器对于客户端请求都有一个最大的连接数,这限制了数据库事务处理性能,尤其在对一些具有终端操作的事务处理类型的应用,每分钟能处理的事务数不高,表现为TPC-C测试中的tpmC的性能值偏低。本文提出了提高数据库TPC-C测试的tpmC值的两种中间件的策略,在传统的连接池技术的基础上,提出了降低调度粒度,以事务乃至语句——而不是客户端请术——为调度单位的中间件模型,从而可提高数据库的事务处理效率。更多还原

【Abstract】 Each database server sets the max value of the connection number to the users, which restricts the transaction-processing performance of the database server. so that the transaction-processing number by second of these systems is not high,and the value of tpmC in TPC-C test is low. For improving the value of tpmC.this paper is based on the technique of the connection pool,and puts forward two middleware models,which scheduling unit is a transaction or a SQL sentence of client’ s requests to advance the transaction-processing performances of the databases.更多还原