@bea dlmalloc is oldschool "regular", but it depends on your system whats default.
jemalloc fragments (very) much less than dl for sure, but is also very very predictable
tcmalloc fragments less but at the expense of using WAY more memory on some programs
@bea @Fuego
Been looking at LLVM's Scudo recently, which seems to be competitive with (and sometimes better than) jemalloc wrt memory usage and overall speed on small SMP systems. Not sure how mature it is tho