public class PartitionSplittingBackingMap.AggregatingCacheStatistics extends Object implements CacheStatistics
Constructor and Description |
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AggregatingCacheStatistics() |
Modifier and Type | Method and Description |
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double |
getAverageGetMillis()
Determine the average number of milliseconds per get() invocation since the cache statistics were last reset.
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double |
getAverageHitMillis()
Determine the average number of milliseconds per get() invocation that is a hit.
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double |
getAverageMissMillis()
Determine the average number of milliseconds per get() invocation that is a miss.
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double |
getAveragePutMillis()
Determine the average number of milliseconds per put() invocation since the cache statistics were last reset.
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long |
getCacheHits()
Determine the rough number of cache hits since the cache statistics were last reset.
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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.
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long |
getCacheMisses()
Determine the rough number of cache misses since the cache statistics were last reset.
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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.
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long |
getCachePrunes()
Determine the rough number of cache pruning cycles since the cache statistics were last reset.
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long |
getCachePrunesMillis()
Determine the total number of milliseconds (since that last statistics reset) spent on cache pruning.
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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.
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long |
getTotalGets()
Determine the total number of get() operations since the cache statistics were last reset.
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long |
getTotalGetsMillis()
Determine the total number of milliseconds spent on get() operations since the cache statistics were last reset.
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long |
getTotalPuts()
Determine the total number of put() operations since the cache statistics were last reset.
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long |
getTotalPutsMillis()
Determine the total number of milliseconds spent on put() operations since the cache statistics were last reset.
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void |
resetHitStatistics()
Reset all of the cache statistics.
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String |
toString()
For debugging purposes, format the statistics information into a human-readable format.
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public long getTotalGets()
getTotalGets
in interface CacheStatistics
public long getTotalGetsMillis()
getTotalGetsMillis
in interface CacheStatistics
public double getAverageGetMillis()
getAverageGetMillis
in interface CacheStatistics
public long getTotalPuts()
getTotalPuts
in interface CacheStatistics
public long getTotalPutsMillis()
getTotalPutsMillis
in interface CacheStatistics
public double getAveragePutMillis()
getAveragePutMillis
in interface CacheStatistics
public long getCacheHits()
A cache hit is a read operation invocation (e.g. get()) for which an entry exists in this map.
getCacheHits
in interface CacheStatistics
public long getCacheHitsMillis()
getCacheHitsMillis
in interface CacheStatistics
public double getAverageHitMillis()
getAverageHitMillis
in interface CacheStatistics
public long getCacheMisses()
A cache miss is a get() invocation that does not have an entry in this map.
getCacheMisses
in interface CacheStatistics
public long getCacheMissesMillis()
getCacheMissesMillis
in interface CacheStatistics
public double getAverageMissMillis()
getAverageMissMillis
in interface CacheStatistics
public double getHitProbability()
getHitProbability
in interface CacheStatistics
public long getCachePrunes()
For the LocalCache implementation, this refers to the number of times that the prune() method is executed.
getCachePrunes
in interface CacheStatistics
public long getCachePrunesMillis()
For the LocalCache implementation, this refers to the time spent in the prune() method.
getCachePrunesMillis
in interface CacheStatistics
public 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.
resetHitStatistics
in interface CacheStatistics