Sun Java System Web Server 7.0 Update 3 Performance Tuning, Sizing, and Scaling Guide

Hit Ratio of Cache Hits and Lookups

The hit ratio in perfdump displays the number of cache hits compared to the number of cache lookups. You can compute this number using the statistics in the Admin Console by dividing the Total Cache Hits by the sum of the Total Cache Hits and the Total Cache Misses.

This setting is not tunable.