Get execution time programmatically

[eluser]gwelter[/eluser]
In case anyone is looking for this in the future, I found a way to retrieve CodeIgniter's execution time up to a given point programmatically.

I saw that the Profiler class generates the execution time like so:

Code:

$elapsed = $BM->elapsed_time('total_execution_time_start', 'total_execution_time_end');        
$output = str_replace('{elapsed_time}', $elapsed, $output);

I wanted to store execution times in a DB table so I could see trends and problem pages, so I wrote the following in a post_controller hook:

Code:

$CI->benchmark->mark('controller_end');
$execution_time = $CI->benchmark->elapsed_time('total_execution_time_start','controller_end');

It's a bit of a hack, as it depends on the Profiler continuing to use the 'total_execution_time_start' mark. But there it is in case that helps anyone.