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ApacheToday: Improving mod_perl Performance -- Part III: Code Profiling and Memory Measurement Techniques

Jan 02, 2001, 01:26 (0 Talkback[s])
(Other stories by Stas Bekman)

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"The profiling process helps you to determine which subroutines or just snippets of code take the longest time to execute and which subroutines are called most often. Probably you will want to optimize those."

"When do you need to profile your code? You do that when you suspect that some part of your code is called very often and may be there is a need to optimize it to significantly improve the overall performance."

"... A very important aspect of performance tuning is to make sure that your applications don't use much memory; since if they do, you cannot run many servers and therefore in most cases under a heavy load the overall performance degrades."

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