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公开(公告)号:US07571188B1
公开(公告)日:2009-08-04
申请号:US10948389
申请日:2004-09-23
CPC分类号: G06F11/3447 , G06F11/3409 , G06F2201/80 , G06F2201/88 , G06F2201/885 , Y10S707/99945 , Y10S707/99948
摘要: A method for modeling a database management system involving receiving a query, computing a hit rate value associated with a cache, wherein the hit rate value is computed using a counter group, comparing the hit rate value to a predetermined value to obtain a result, providing a reply to the query if the result is a hit, incrementing a counter in the counter group when the cache is not full and proceeding to a next cache if the result is a miss, and providing a diagnostic output for the database management system.
摘要翻译: 一种用于对数据库管理系统进行建模的方法,包括接收查询,计算与高速缓存相关联的命中率值,其中使用计数器组计算命中率值,将命中率值与预定值进行比较以获得结果, 如果结果是命中,则对查询的回复,当缓存不满时递增计数器组中的计数器,并且如果结果为未命中则继续进行下一个缓存,并为数据库管理系统提供诊断输出。