Also, according to mod_perl Developer's Cookbook, you want to be careful with modules that automatically export symbols to your namespace, like POSIX:

   # original code (from mod_perl book)
   use POSIX;
   setlocale(LC_ALL, 'en_US');

   # now stop symbol exporting... (from mod_perl book)
   use POSIX(); # instead of use POSIX;
   POSIX::setlocal(&POSIX::LC_ALL, 'en_US');

[download]

According to the same book, doing "use POSIX" consumes about 140KB just for exporting those symbols. If you have many modules that uses such modules, eventually this will easily compound to a few megabytes...

In reply to Re: Improving memory performance by lestrrat
in thread Improving memory performance by ezekiel

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