• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2007, Vol. 29 ›› Issue (3): 105-107.

• 论文 • 上一篇    下一篇

数据库管理系统多缓冲池的配置及其多次划分自调优算法

吴恒山 李蛟 谢美意   

  • 出版日期:2007-03-01 发布日期:2010-05-30

  • Online:2007-03-01 Published:2010-05-30

摘要:

本文针对数据库管理系统中缓冲区的特殊重要地位,介绍了多缓冲池的配置及自调优的概念。将缓冲区分为数个独立的缓冲池,为不同性质的数据库对象分别建立独立的缓冲池  ,也为不同的负载提供最佳的配置方式,能够减少不同负载下的i/os时间,提高吞吐率。本文介绍了多缓冲池配置的模型,并基于此模型提出了多缓冲池的多次划分自调优算法。

关键词: 多缓冲池 配置 自调优 多次划分

Abstract:

This paper introduces the concept of configuring and self-tuning multiple buffer pools according to the specialty of the buffer area in DBMS.The whole buffer area is partitioned into a number of independent buffer pools.Database objects with different features are assigned to individual buffer pools.Also it can offer the most appropriate configuration for a specific workload,which can reduce the time consumption of i/os delays and improve the through    put rate.This paper introduces the model for configuring multiple buffer pools,and gives a multiple classification algorithm for self-tuning multiple bu ffer pools based on the model.

Key words: multiple buffer pool;configuration;self-tuning;multiple classification