[PHP] Benchmarking Class

<?php

	class Benchmark{

		private $ElapsedTime = Array();

		

		function __destruct(){

			unset($ElapsedTime);

		}

		

		public function Mark($Handle){

			$this->ElapsedTime[$Handle] = (float) microtime(true);

		}

		

		public function Elapsed($Handle_Start, $Handle_Stop, $Decimals=false){

			$ElapsedTime = 0;

			

			if(isset($this->ElapsedTime[$Handle_Start]) && $this->ElapsedTime[$Handle_Start] > 0 && isset($this->ElapsedTime[$Handle_Stop]) && $this->ElapsedTime[$Handle_Stop] > 0){

				if($Decimals !== false){

					$ElapsedTime = round(($this->ElapsedTime[$Handle_Stop] - $this->ElapsedTime[$Handle_Start]), $Decimals);

				}else{

					$ElapsedTime = abs($this->ElapsedTime[$Handle_Stop] - $this->ElapsedTime[$Handle_Start]);

				}

			}

			

			return $ElapsedTime;

		}

	}

?>

Due to the fact many people may not understand it, it is rather simple here is an example;

<?php

	$Benchmark = new Benchmark();

	

	$Benchmark->Mark('start');

		usleep(1000000);

	$Benchmark->Mark('stop');

	

	echo $Benchmark->Elapsed('start', 'stop');

?>

Nice.

I did one similar for my framework:

<?php



class Benchmark

{



	var $times = Array(

		'start' => Array(),

		'finish' => Array()

	);



	var $type = 'txt';



	function compare($key1 = 0, $key2 = 1, $return = false)

	{

		$difference = $this->difference($key2) - $this->difference($key1);

		if ($return)

			return $difference;

		else

		{

			echo 'Benchmark[', ($difference > 0 ? $key2 : $key1), '] took ', abs($difference), ' seconds longer than Benchmark[', ($difference > 0 ? $key1 : $key2), ']', ($this->type == 'html' ? '<br />' : "\n");

		}

	}



	function difference($key)

	{

		return ($this->times['finish'][$key] - $this->times['start'][$key]);

	}



	function finish($key = 0)

	{

		$this->times['finish'][$key] = (float) microtime(true);

	}



	function result($key = 0, $return = false)

	{

		if ($return)

			return $this->difference($key);

		else

			echo 'Benchmark[' . $key . '] took ' . $this->difference($key) . ' seconds.' . ($this->type == 'html' ? '<br />' : "\n");

	}



	function results($key = false, $return = false)

	{

		if ($key)

		{

			if (is_array($key))

			{

				$keys = count($key);

				$k = 0;

				while ($k < $keys)

				{

					$this->result($key[$k]);

					++$k;

				}

			}

			else

				$this->result($key);

		}

		else

		{

			foreach ($this->times['start'] as $key => $value)

			{

				if (array_key_exists($key, $this->times['finish']))

					$this->result($key);

			}

		}

	}



	function start($key = 0)

	{

		$this->times['start'][$key] = (float) microtime(true);

	}



}



?>

Just noticed a huge bug when trying to get it to return data instead of echo'ing it, but whatever. Too late at night for me to fix it ATM.

Use it like so:

$bm = new Benchmark();

$bm->type = 'html'; // output line breaks as <br /> instead of \n

$bm->start('X++');

for ($x = $y = 0; $x < 3000000; $x++) { $y++; }

$bm->finish('X++');

$bm->start('++X');

for ($x = $y = 0; $x < 3000000; ++$x) { ++$y; }

$bm->finish('++X');

$bm->compare('X++', '++X');

Outputs:
Benchmark[X++] took 0.38813710212708 seconds longer than Benchmark[++X]

GAMEchief wrote:

Nice.

I did one similar for my framework:

<?php



class Benchmark

{



	var $times = Array(

		'start' => Array(),

		'finish' => Array()

	);



	var $type = 'txt';



	function compare($key1 = 0, $key2 = 1, $return = false)

	{

		$difference = $this->difference($key2) - $this->difference($key1);

		if ($return)

			return $difference;

		else

		{

			echo 'Benchmark[', ($difference > 0 ? $key2 : $key1), '] took ', abs($difference), ' seconds longer than Benchmark[', ($difference > 0 ? $key1 : $key2), ']', ($this->type == 'html' ? '<br />' : "\n");

		}

	}



	function difference($key)

	{

		return ($this->times['finish'][$key] - $this->times['start'][$key]);

	}



	function finish($key = 0)

	{

		$this->times['finish'][$key] = (float) microtime(true);

	}



	function result($key = 0, $return = false)

	{

		if ($return)

			return $this->difference($key);

		else

			echo 'Benchmark[' . $key . '] took ' . $this->difference($key) . ' seconds.' . ($this->type == 'html' ? '<br />' : "\n");

	}



	function results($key = false, $return = false)

	{

		if ($key)

		{

			if (is_array($key))

			{

				$keys = count($key);

				$k = 0;

				while ($k < $keys)

				{

					$this->result($key[$k]);

					++$k;

				}

			}

			else

				$this->result($key);

		}

		else

		{

			foreach ($this->times['start'] as $key => $value)

			{

				if (array_key_exists($key, $this->times['finish']))

					$this->result($key);

			}

		}

	}



	function start($key = 0)

	{

		$this->times['start'][$key] = (float) microtime(true);

	}



}



?>

Just noticed a huge bug when trying to get it to return data instead of echo'ing it, but whatever. Too late at night for me to fix it ATM.

Use it like so:

$bm = new Benchmark();

$bm->type = 'html'; // output line breaks as <br /> instead of \n

$bm->start('X++');

for ($x = $y = 0; $x < 3000000; $x++) { $y++; }

$bm->finish('X++');

$bm->start('++X');

for ($x = $y = 0; $x < 3000000; ++$x) { ++$y; }

$bm->finish('++X');

$bm->compare('X++', '++X');

Outputs:
Benchmark[X++] took 0.38813710212708 seconds longer than Benchmark[++X]

Probably the same bug I came across.

Is it returning shit like;

1.E4-1.5

Or some weird shit like that?

No, no. I mean, I coded it wrong and forgot to actually return the value. I never tested it with returning, as I originally planned and used it to echo, so I didn't focus much on returning, and thus I missed a bit of the code.

The xey is scientific notation, which means X*10^Y, used to display ridiculously small or large numbers (small in this case). I just increased my loops to get rid of that (as you can see it goes up to 3 million).

Fixed up my code, thanks to GAMEchief for posting his code.