POSIX imports over 560 symbols, each imported symbol being about a 120 byte memory penalty. According to this book that works out to 140KB of memery overhead that could be avoided with 2 colons and a little more typing. Not alot in a small one-off script, but that piles up fast when you have 50-100 mod_perl/Apache child processes screaming for attention from the CPU.

You'll also want to realize that the qualifiied name adds a handful of additional dereferences and a hash lookup when you could have spent the memory on a local access.

--
  Devil

In reply to Re: Re: module memory usage by diotalevi
in thread module memory usage by smackdab

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