http://compresscafe.i2p/blog/free_list_allocator.html
Simple, but effective. The source can be found in a Gist . Before ( BinnedAllocator by silversquirl): read(3, "FRAME\n013101011./21110010/379<@B"..., 4096) = 4096
mmap(0x7f3ac5b65000, 155648, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3ac5b65000
read(3, "/........0..//.--,,-+,/024588999"..., 147974) = 147974
munmap(0x7f3ac5b65000, 155648) = 0
read(3, "FRAME\n013101011./21110010/379<@B"..., 4096) = 4096
mmap(0x7f3ac5b8b000, 155648, PROT_READ|PROT_WRITE,...