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31 namespace JSC { namespace Heuristics {
33 extern unsigned maximumOptimizationCandidateInstructionCount;
35 extern unsigned maximumFunctionForCallInlineCandidateInstructionCount;
36 extern unsigned maximumFunctionForConstructInlineCandidateInstructionCount;
38 extern unsigned maximumInliningDepth; // Depth of inline stack, so 1 = no inlining, 2 = one level, etc.
40 extern int32_t executionCounterValueForOptimizeAfterWarmUp;
41 extern int32_t executionCounterValueForOptimizeAfterLongWarmUp;
42 extern int32_t executionCounterValueForDontOptimizeAnytimeSoon;
43 extern int32_t executionCounterValueForOptimizeSoon;
44 extern int32_t executionCounterValueForOptimizeNextInvocation;
46 extern int32_t executionCounterIncrementForLoop;
47 extern int32_t executionCounterIncrementForReturn;
49 extern unsigned desiredSpeculativeSuccessFailRatio;
51 extern unsigned likelyToTakeSlowCaseThreshold;
52 extern unsigned couldTakeSlowCaseThreshold;
54 extern unsigned largeFailCountThresholdBase;
55 extern unsigned largeFailCountThresholdBaseForLoop;
57 extern unsigned reoptimizationRetryCounterMax;
58 extern unsigned reoptimizationRetryCounterStep;
60 extern unsigned minimumOptimizationDelay;
61 extern unsigned maximumOptimizationDelay;
62 extern double desiredProfileLivenessRate;
63 extern double desiredProfileFullnessRate;
65 extern unsigned minimumNumberOfScansBetweenRebalance;
66 extern unsigned gcMarkStackSegmentSize;
67 extern unsigned minimumNumberOfCellsToKeep;
68 extern unsigned maximumNumberOfSharedSegments;
69 extern unsigned sharedStackWakeupThreshold;
70 extern unsigned numberOfGCMarkers;
71 extern unsigned opaqueRootMergeThreshold;
73 void initializeHeuristics();
75 } } // namespace JSC::Heuristics
77 #endif // Heuristics_h