Connecting to HandlerSocket with localhost vs. 127.0.0.1

Using Net::HandlerSocket, here are some fun numbers for a single connection (open & close). When connecting to “localhost”, here’s the strace: open("/etc/hosts", O_RDONLY) = 3 fcntl(3, F_GETFD) = 0 fcntl(3, F_SETFD, FD_CLOEXEC) = 0 fstat(3, {st_mode=S_IFREG|0644, st_size=187, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b909a1a3000 read(3, "# Do not remove the following [...]
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