#include <coherence/net/cache/SimpleCacheStatistics.hpp>
Inherits Object, and CacheStatistics.
Public Types | |
| typedef spec::Handle | Handle |
| SimpleCacheStatistics Handle definition. | |
| typedef spec::View | View |
| SimpleCacheStatistics View definition. | |
| typedef spec::Holder | Holder |
| SimpleCacheStatistics Holder definition. | |
Public Member Functions | |
| virtual int64_t | getTotalGets () const |
| Determine the total number of get() operations since the cache statistics were last reset.
| |
| virtual int64_t | getTotalGetsMillis () const |
| Determine the total number of milliseconds spent on get() operations since the cache statistics were last reset.
| |
| virtual float64_t | getAverageGetMillis () const |
| Determine the average number of milliseconds per get() invocation since the cache statistics were last reset.
| |
| virtual int64_t | getTotalPuts () const |
| Determine the total number of put() operations since the cache statistics were last reset.
| |
| virtual int64_t | getTotalPutsMillis () const |
| Determine the total number of milliseconds spent on put() operations since the cache statistics were last reset.
| |
| virtual float64_t | getAveragePutMillis () const |
| Determine the average number of milliseconds per put() invocation since the cache statistics were last reset.
| |
| virtual int64_t | getCacheHits () const |
| Determine the rough number of cache hits since the cache statistics were last reset. A cache hit is a read operation invocation (i.e. get()) for which an entry exists in this map.
| |
| virtual int64_t | getCacheHitsMillis () const |
| Determine the total number of milliseconds (since that last statistics reset) for the get() operations for which an entry existed in this map.
| |
| virtual float64_t | getAverageHitMillis () const |
| Determine the average number of milliseconds per get() invocation that is a hit.
| |
| virtual int64_t | getCacheMisses () const |
| Determine the rough number of cache misses since the cache statistics were last reset. A cache miss is a get() invocation that does not have an entry in this map.
| |
| virtual int64_t | getCacheMissesMillis () const |
| Determine the total number of milliseconds (since that last statistics reset) for the get() operations for which no entry existed in this map.
| |
| virtual float64_t | getAverageMissMillis () const |
| Determine the average number of milliseconds per get() invocation that is a miss.
| |
| virtual float64_t | getHitProbability () const |
| 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.
| |
| virtual int64_t | getCachePrunes () const |
| Determine the rough number of cache pruning cycles since the cache statistics were last reset.
For the LocalCache implementation, this refers to the number of times that the
| |
| virtual int64_t | getCachePrunesMillis () const |
| Determine the total number of milliseconds (since that last statistics reset) spent on cache pruning.
For the LocalCache implementation, this refers to the time spent in the
| |
| virtual float64_t | getAveragePruneMillis () const |
| Determine the average number of milliseconds per cache pruning.
| |
| virtual void | resetHitStatistics () |
| Reset the cache statistics. | |
| virtual void | registerHit () |
| Register a cache hit (no timing information). | |
| virtual void | registerHit (int64_t lStartMillis) |
| Register a cache hit. | |
| virtual void | registerHits (int32_t cHits, int64_t lStartMillis) |
| Register a multiple cache hit. | |
| virtual void | registerMiss () |
| Register a cache miss (no timing information). | |
| virtual void | registerMiss (int64_t lStartMillis) |
| Register a cache miss. | |
| virtual void | registerMisses (int32_t cMisses, int64_t lStartMillis) |
| Register a multiple cache miss. | |
| virtual void | registerPut (int64_t lStartMillis) |
| Register a cache put. | |
| virtual void | registerPuts (int32_t cPuts, int64_t lStartMillis) |
| Register a multiple cache put. | |
| virtual void | registerCachePrune (int64_t lStartMillis) |
| Register a cache prune. | |
|
TypedHandle< const String > | toString () const |
| Output a human-readable description of this Object to the given stream. Note that when overriding this method the return type must be TypedHandle<const String> rather then String::View. These two types are assignment compatible but not equivalent and declaring the override with String::View will not be a compatible override. coherence::lang::operator<<(std::ostream, Object::View) is defined and will call into the toString method, to output Objects. If a managed String object is desired, the COH_TO_STRING macro can be used to build up a String from streamable contents and is generally how toString() will be implemented.
Object::View vKey = ... Object::View vValue = ... std::cout << vKey << " = " << vValue << std::endl; String::View vs = COH_TO_STRING(vKey << " = " << vValue); The COH_TO_STRING macro is also the most common way to implement the toString method. For example:
virtual TypedHandle<const String> Person::toString() const { return COH_TO_STRING("Name: " << f_sName << " SSN: " << f_nSSN); }
| |
Protected Member Functions | |
| SimpleCacheStatistics () | |
| Create a SimpleCacheStatistics object. | |
Protected Attributes | |
| int64_t | m_cCacheHits |
| The rough (ie unsynchronized) number of calls that could be answered from the front or the back and were answered by data in the front map. | |
| int64_t | m_cCacheMisses |
| The rough (ie unsynchronized) number of calls that could be answered from the front or the back and were answered by data in the back map. | |
| int64_t | m_cHitsMillis |
| Total number of milliseconds used for get operations that were hits since the last statistics reset. | |
| int64_t | m_cMissesMillis |
| Total number of milliseconds used for get operations that were misses since the last statistics reset. | |
| int64_t | m_cCachePuts |
| Total number of put operations since the last statistics reset. | |
| int64_t | m_cPutsMillis |
| Total number of milliseconds used for put operations since the last statistics reset. | |
| int64_t | m_cCachePrunes |
| Total number of evictions triggered based on the size of the cache since the last statistics reset. | |
| int64_t | m_cCachePrunesMillis |
| Total number of milliseconds used for prune operations since the last statistics reset. | |
| virtual void registerHit | ( | int64_t | lStartMillis | ) | [virtual] |
| virtual void registerHits | ( | int32_t | cHits, | |
| int64_t | lStartMillis | |||
| ) | [virtual] |
Register a multiple cache hit.
| cHits | the number of hits | |
| lStartMillis | the time when the get operation started |
| virtual void registerMiss | ( | int64_t | lStartMillis | ) | [virtual] |
| virtual void registerMisses | ( | int32_t | cMisses, | |
| int64_t | lStartMillis | |||
| ) | [virtual] |
Register a multiple cache miss.
| cMisses | the number of misses | |
| lStartMillis | the time when the get operation started |
| virtual void registerPut | ( | int64_t | lStartMillis | ) | [virtual] |
| virtual void registerPuts | ( | int32_t | cPuts, | |
| int64_t | lStartMillis | |||
| ) | [virtual] |
Register a multiple cache put.
| cPuts | the number of puts | |
| lStartMillis | the time when the put operation started |
| virtual void registerCachePrune | ( | int64_t | lStartMillis | ) | [virtual] |