JavaScriptCore-7537.78.1/jit/ExecutableAllocatorFixedVMPool.cpp

146     MetaAllocator::Statistics statistics = allocator->currentStatistics();
147     return statistics.bytesAllocated > statistics.bytesReserved / 2;
152     MetaAllocator::Statistics statistics = allocator->currentStatistics();
153     ASSERT(statistics.bytesAllocated <= statistics.bytesReserved);
154     size_t bytesAllocated = statistics.bytesAllocated + addedMemoryUsage;
155     if (bytesAllocated >= statistics.bytesReserved)
156         bytesAllocated = statistics.bytesReserved;
158     size_t divisor = statistics.bytesReserved - bytesAllocated;
160         result = static_cast<double>(statistics.bytesReserved) / divisor;