Using [Ehcache ][1], after Java app works 2.5 days, I have this statistic cacheHits: 31185262, approximate 131 per sec cacheMisses: 4642979, approximate 19 per sec evictedCount: 4106931, approximate 17 per sec and last hour it looks like cacheHits: 60 per sec cacheMisses: 57 per sec evictedCount: 53 per sec size of cache=400000, items never expire. Why does it happen? [1]:http://ehcache.org/
from what you've posted, how can you tell that the entries being evicted are "recently used"? Are you sure that your application isn't just accessing a wide variety of items in your cache, both recently used and not-recently-used?