Cache.cpp Source File (original) (raw)

00001 00002 00003 00004 00005 00006 00007 00008 00009 00010 00011 00012 00013 00014 00015 00016 00017 00018 00019 00020 00021 00022 00023 00024 #include "fennel/common/CommonPreamble.h" 00025 #include "fennel/cache/CacheImpl.h" 00026 #include "fennel/cache/LRUVictimPolicy.h" 00027 #include "fennel/cache/TwoQVictimPolicy.h" 00028 #include "fennel/common/StatsTarget.h" 00029 00030 FENNEL_BEGIN_CPPFILE("$Id: //open/dev/fennel/cache/Cache.cpp#14 $"); 00031 00032 const DeviceId Cache::NULL_DEVICE_ID = DeviceId(0); 00033 00034 Cache::~Cache() 00035 { 00036 } 00037 00038 CacheAccessor::~CacheAccessor() 00039 { 00040 } 00041 00042 class TwoQPage : public CachePage, public TwoQVictim 00043 { 00044 public: 00045 TwoQPage(Cache &cache,PBuffer buffer) 00046 : CachePage(cache,buffer) 00047 { 00048 } 00049 }; 00050 00051 SharedCache Cache::newCache( 00052 CacheParams const &cacheParams, 00053 CacheAllocator *bufferAllocator) 00054 { 00055 typedef CacheImpl< 00056 TwoQPage, 00057 TwoQVictimPolicy 00058 > TwoQCache; 00059 return SharedCache( 00060 new TwoQCache(cacheParams,bufferAllocator), 00061 ClosableObjectDestructor()); 00062 } 00063 00064 SharedCache Cache::getCache() 00065 { 00066 return shared_from_this(); 00067 } 00068 00069 uint Cache::getMaxLockedPages() 00070 { 00071 return getAllocatedPageCount(); 00072 } 00073 00074 void Cache::setMaxLockedPages(uint) 00075 { 00076 } 00077 00078 void Cache::setTxnId(TxnId) 00079 { 00080 } 00081 00082 TxnId Cache::getTxnId() const 00083 { 00084 return IMPLICIT_TXN_ID; 00085 } 00086 00087 void Cache::writeStats(StatsTarget &target) 00088 { 00089 CacheStats stats; 00090 collectStats(stats); 00091 target.writeCounter( 00092 "CacheHits", stats.nHits); 00093 target.writeCounter( 00094 "CacheHitsSinceInit", stats.nHitsSinceInit); 00095 target.writeCounter( 00096 "CacheRequests", stats.nRequests); 00097 target.writeCounter( 00098 "CacheRequestsSinceInit", stats.nRequestsSinceInit); 00099 target.writeCounter( 00100 "CacheVictimizations", stats.nVictimizations); 00101 target.writeCounter( 00102 "CacheVictimizationsSinceInit", stats.nVictimizationsSinceInit); 00103 target.writeCounter( 00104 "CacheDirtyPages", stats.nDirtyPages); 00105 target.writeCounter( 00106 "CachePagesRead", stats.nPageReads); 00107 target.writeCounter( 00108 "CachePagesReadSinceInit", stats.nPageReadsSinceInit); 00109 target.writeCounter( 00110 "CachePagesWritten", stats.nPageWrites); 00111 target.writeCounter( 00112 "CachePagesWrittenSinceInit", stats.nPageWritesSinceInit); 00113 target.writeCounter( 00114 "CachePagePrefetchesRejected", stats.nRejectedPrefetches); 00115 target.writeCounter( 00116 "CachePagePrefetchesRejectedSinceInit", 00117 stats.nRejectedPrefetchesSinceInit); 00118 target.writeCounter( 00119 "CachePageIoRetries", stats.nIoRetries); 00120 target.writeCounter( 00121 "CachePageIoRetriesSinceInit", 00122 stats.nIoRetriesSinceInit); 00123 target.writeCounter( 00124 "CachePagesPrefetched", stats.nSuccessfulPrefetches); 00125 target.writeCounter( 00126 "CachePagesPrefetchedSinceInit", 00127 stats.nSuccessfulPrefetchesSinceInit); 00128 target.writeCounter("CacheLazyWrites", stats.nLazyWrites); 00129 target.writeCounter("CacheLazyWritesSinceInit", stats.nLazyWritesSinceInit); 00130 target.writeCounter("CacheLazyWriteCalls", stats.nLazyWriteCalls); 00131 target.writeCounter( 00132 "CacheLazyWriteCallsSinceInit", 00133 stats.nLazyWriteCallsSinceInit); 00134 target.writeCounter("CacheVictimizationWrites", stats.nVictimizationWrites); 00135 target.writeCounter( 00136 "CacheVictimizationWritesSinceInit", 00137 stats.nVictimizationWritesSinceInit); 00138 target.writeCounter("CacheCheckpointWrites", stats.nCheckpointWrites); 00139 target.writeCounter( 00140 "CacheCheckpointWritesSinceInit", 00141 stats.nCheckpointWritesSinceInit); 00142 target.writeCounter( 00143 "CachePagesAllocated", stats.nMemPagesAllocated); 00144 target.writeCounter( 00145 "CachePagesUnused", stats.nMemPagesUnused); 00146 target.writeCounter( 00147 "CachePagesAllocationLimit", stats.nMemPagesMax); 00148 } 00149 00150 00151 #ifdef MSVC 00152 class UnreferencedCacheStructs 00153 { 00154 LRUVictim lruVictim; 00155 }; 00156 #endif 00157 00158 FENNEL_END_CPPFILE("$Id: //open/dev/fennel/cache/Cache.cpp#14 $"); 00159 00160