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Improving mod_perl Driven Site’s Performance — Part III: Code Profiling and Memory Measurement Techniques Page 6

Written By

Jul 20, 2010

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  % perl -MO=Terse -e 'my %hash' | wc -l
  -e syntax OK
      4

  % perl -MO=Terse -e 'my %hash = ()' | wc -l
  -e syntax OK
     10

The first one has less opcodes.

Note that you shouldn't use Apache::Status module on production
server as it adds quite a bit of overhead for each request.

References

The mod_perl site’s URL: http://perl.apache.org
Devel::DProf

http://search.cpan.org/search?dist=DProf
Apache::DProf

http://search.cpan.org/search?dist=Apache-DB
Apache::VMonitor

http://search.cpan.org/search?dist=Apache-VMonitor
GTop

http://search.cpan.org/search?dist=GTop

The home of the C library: http://www.home-of-linux.org/gnome/libgtop/
BSD::Resource

http://search.cpan.org/search?dist=BSD-Resource

Jeremy Reed

Jeremy Reed is a ServerWatch contributor.

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Improving mod_perl Driven Site’s Performance — Part III: Code Profiling and Memory Measurement Techniques Page 6

References

Jeremy Reed

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