Patent ID: 6493810
Filing Date: 2002-12-10
Classification: H04L

Abstract:
A method of determining a size of cache memory for a network database service to cache data retrieved from a database on a disk, comprising the steps of:determining a best-case cache size for the network database service; assigning an initial value for the size of cache memory; estimating a first probability value corresponding to a general cache-miss rate for the size of the cache memory; deriving a second probability value corresponding to a cache-miss rate for a frequent user with the size of the cache memory; evaluating performance of the network database service with the first and second probability values to determine whether the performance is adequate; and if the performance of the network database service is determine to be not adequate, adjusting the size of the cache memory; repeating the steps of estimating, deriving, evaluating and adjusting until the performance of the network database service is determined to be adequate.