jemalloc is a general-purpose scalable concurrent malloc(3) implementation. There are several divergent versions of jemalloc in active use, including: FreeBSD's default system allocator (malloc.c, manual page). This was the first public use of jemalloc, and it is still author-maintained. NetBSD's default system allocator (jemalloc.c). Mozilla Firefox's allocator (source code), specifically for Mi