optimize_speed; uses Core; file Malloc.h, Util.cpp, Sheap.cpp, Lheap.cpp, Heap.cpp, idmap.cpp, HeapTest.cpp, Tests.cpp, Malloc.cpp, bench.txt; mainconfig "" = "MT", "" = "MT USEMALLOC", "" = "", "" = "USEMALLOC", "" = "USEMALLOC HEAPSTAT";