SuperMalloc is an implementation of malloc(3) originally designed for X86 Hardware Transactional Memory (HTM). It turns out that the same design decisions also make it fast even without HTM. We compared SuperMalloc to DLmalloc, JEmalloc, Hoard, and TBBmalloc, For the malloc-test benchmark, with 1 thread SuperMalloc is about 2.1 times faster than the best alternatives, with 8 threads and HTM SuperM