how well did my script perform?

[sfullman]

As I add more and more complexity to my script, it would be nice to get a benchmark of performance status over time. I wonder if I can start a thread on methods for this.

I have a function already for seeing time "checkpoints" through a script as follows:

	//at the head of my coding
	function gmicrotime($n){
		//store array of all calls
		global $gmicrotime, $mT;
		list($usec, $sec) = explode(' ',microtime());
		$mT[]=$gmicrotime[$n]=round((float)$usec + (float)$sec,6);
		//return elapsed since last call
		if(count($mT)>1)return round(1000*($mT[count($mT)-1]-$mT[count($mT)-2]),6);
	}
	gmicrotime('initial');

#do some code block A
gmicrotime('after_A');

#do something else, B
gmicrotime('after_B');


#end of page
gmicrotime('end');

if($test){
	echo '<pre>';
	print_r($mT);
}

Now, I suppose I could get the memory usage at that point as well and build a parallel array called $mM (micro memory). But memory is not everything. How can I determine what the current CPU load is by the script? Is this even possible?

Any other suggestions on monitoring the performance of a script, or examples, is welcome.

Sam

[bradgrafelman]

sfullman;11020745 wrote:

Any other suggestions on monitoring the performance of a script

Rather than instrumenting your code, you could instead turn to a more comprehensive solution such as a profiler. The first PHP debugger+profiler that comes to my mind is Xdebug.

[NogDog]

You could take a look at the PEAR::Benchmark package, but I've never tried it so cannot vouch for it.