end of CI Controller call loop

CodeIgniter 3.1.11 User Guide - Benchmarking Class

CodeIgniter 3.1.11 User Guide - Application Flow Chart

CodeIgniter 3.1.11 User Guide - Design and Architectural Goals

Thanks that is helpful.  I knew about the benchmarking class and was planning on using it.  

What I would like to do is have it be logged at the end of every single function call so I can keep track of performance of the application.  I tried going to my MY_Controller inside the __destruct before the parent function is called, but that doesn't work as Session appears to already have been destroyed.

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For example in the __destruct it just does this {elapsed_time}, but in the actual benchmark class it looks like it is supposed to return number_format not a view variable.