The dynamic cache service provides an MBean interface to access cache statistics.
$AdminControl queryNames type=DynaCache,* // Returns a list of the available dynamic cache MBeans
set mbean <dynamic_cache_mbean>
$AdminControl invoke $mbean getCacheStatisticNames
$AdminControl invoke $mbean getCacheInstanceNames
$AdminControl invoke $mbean getAllCacheStatistics
$AdminControl invoke $mbean getAllCacheStatistics "services/cache/servletInstance_4"
$AdminControl invoke $mbean getCacheStatistics {"DiskCacheSizeInMB ObjectsReadFromDisk4000K RemoteObjectMisses"}
$AdminControl invoke $mbean getCacheStatistics {services/cache/servletInstance_4 "ExplicitInvalidationsLocal CacheHits"}
$AdminControl invoke $mbean getCacheIDsInMemory {services/cache/servletInstance_4 \S}
$AdminControl invoke $mbean getCacheIDsOnDisk {services/cache/servletInstance_4 \S}
$AdminControl invoke $mbean getCacheEntry {services/cache/servletInstance_4 cache_id_1}
$AdminControl invoke $mbean invalidateCacheIDs {services/cache/servletInstance_4 cache_id_1 true}