Debugging and Profiling mod_perl Applications
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WEBMASTER
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Description
Because of the added complexity of being inside of the Apache web server, debugging mod_perl applications is often not as straightforward as it is with regular Perl programs or CGIs. Is the problem with your code, Apache, a CPAN module you are using, or within mod_perl itself? How do you tell? Sometimes traditional debugging techniques will not give you enough information to find your problem. Perhaps, instead, you're baffled as to why some code you just wrote is running so slow. You're probably asking yourself, "Isn't this mod_perl stuff supposed to improve my code's performance?" Don't worry, slow code happens even to the best of us. How do you profile your code to find the problem? This article shows how to use the available CPAN modules to debug and profile your mod_perl applications.
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