The following information is available for each legacy cache in the Server Cache Status report:

• The maximum number of objects that can be cached (cache size)

• The number of additional objects that can be cached (free units)

• The number of hits, misses, and swaps

  Note: Swaps mean replacing an object with another one when the max size is reached.

• Miss rate (the lower the better)

• Estimation of the amount of memory taken by the cache

The following information is available for each new cache in the CacheManager Statistics report:

• Hits, misses, and hit rate (the higher the hit rate, the better)

• The number of cache flushes

  Cache flushes are broken down by the categories "old", "idle", "soft reference reclaimed", and "max cache size reached"

• The average load time to load an object from database when it is not in the cache

• The number of staleness checks performed

• The maximum cacheable objects (cache size), cached object count, and maximum idle time

• Whether the cache is distributed or not

  If it is distributed, removing an object from the cache in any node of the PPM cluster will send a message to all the other cluster nodes to remove that object from their caches.