public interface CacheStatistics
Modifier and Type | Method and Description |
---|---|
double |
getAverageGetMillis()
Determine the average number of milliseconds per get()
invocation since the cache statistics were last reset.
|
double |
getAverageHitMillis()
Determine the average number of milliseconds per get()
invocation that is a hit.
|
double |
getAverageMissMillis()
Determine the average number of milliseconds per get()
invocation that is a miss.
|
double |
getAveragePutMillis()
Determine the average number of milliseconds per put()
invocation since the cache statistics were last reset.
|
long |
getCacheHits()
Determine the rough number of cache hits since the cache statistics
were last reset.
|
long |
getCacheHitsMillis()
Determine the total number of milliseconds (since that last statistics
reset) for the get() operations for which an entry existed in
this map.
|
long |
getCacheMisses()
Determine the rough number of cache misses since the cache statistics
were last reset.
|
long |
getCacheMissesMillis()
Determine the total number of milliseconds (since that last statistics
reset) for the get() operations for which no entry existed in
this map.
|
long |
getCachePrunes()
Determine the rough number of cache pruning cycles since the cache
statistics were last reset.
|
long |
getCachePrunesMillis()
Determine the total number of milliseconds (since that last statistics
reset) spent on cache pruning.
|
double |
getHitProbability()
Determine the rough probability (0 <= p <= 1) that the next
invocation will be a hit, based on the statistics collected since the
last reset of the cache statistics.
|
long |
getTotalGets()
Determine the total number of get() operations since the cache
statistics were last reset.
|
long |
getTotalGetsMillis()
Determine the total number of milliseconds spent on get()
operations since the cache statistics were last reset.
|
long |
getTotalPuts()
Determine the total number of put() operations since the cache
statistics were last reset.
|
long |
getTotalPutsMillis()
Determine the total number of milliseconds spent on put()
operations since the cache statistics were last reset.
|
void |
resetHitStatistics()
Reset all of the cache statistics.
|
long getTotalGets()
long getTotalGetsMillis()
double getAverageGetMillis()
long getTotalPuts()
long getTotalPutsMillis()
double getAveragePutMillis()
long getCacheHits()
A cache hit is a read operation invocation (e.g. get()) for which an entry exists in this map.
long getCacheHitsMillis()
double getAverageHitMillis()
long getCacheMisses()
A cache miss is a get() invocation that does not have an entry in this map.
long getCacheMissesMillis()
double getAverageMissMillis()
double getHitProbability()
long getCachePrunes()
For the LocalCache implementation, this refers to the number of times that the prune() method is executed.
long getCachePrunesMillis()
For the LocalCache implementation, this refers to the time spent in the prune() method.
void resetHitStatistics()
Note that the method name implies that only the hit statistics are cleared, which is not the case; all of the statistics are cleared.