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cvsjoko |
1.1 |
<?php |
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// +----------------------------------------------------------------------+ |
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// | PHP version 4.0 | |
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// +----------------------------------------------------------------------+ |
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// | Copyright (c) 1997-2001 The PHP Group | |
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// +----------------------------------------------------------------------+ |
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// | This source file is subject to version 2.02 of the PHP license, | |
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// | that is bundled with this package in the file LICENSE, and is | |
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// | available at through the world-wide-web at | |
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// | http://www.php.net/license/2_02.txt. | |
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// | If you did not receive a copy of the PHP license and are unable to | |
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// | obtain it through the world-wide-web, please send a note to | |
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// | license@php.net so we can mail you a copy immediately. | |
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// +----------------------------------------------------------------------+ |
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// | Authors: Sebastian Bergmann <sb@sebastian-bergmann.de> | |
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// +----------------------------------------------------------------------+ |
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// |
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// $Id: Iterate.php,v 1.6 2001/03/03 06:36:44 sbergmann Exp $ |
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// |
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require_once 'Benchmark/Timer.php'; |
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/** |
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* Benchmark::Benchmark_Iterate |
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* |
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* Purpose: |
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* |
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* Benchmarking |
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* |
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* Example: |
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* |
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* require_once "Benchmark/Iterate.php"; |
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* $benchmark = new Benchmark_Iterate; |
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* |
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* function foo($string) |
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* { |
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* print $string."<br>"; |
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* } |
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* |
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* $benchmark->run(100, 'foo', 'test'); |
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* $result = $benchmark->get(); |
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* |
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* @author Sebastian Bergmann <sb@sebastian-bergmann.de> |
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* @version $Revision: 1.6 $ |
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* @access public |
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*/ |
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class Benchmark_Iterate extends Benchmark_Timer |
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{ |
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// {{{ run() |
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/** |
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* Benchmarks a function. |
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* |
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* @access public |
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*/ |
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function run() |
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{ |
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// get arguments |
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$arguments = func_get_args(); |
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$iterations = array_shift($arguments); |
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$function_name = array_shift($arguments); |
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// main loop |
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for ($i = 1; $i <= $iterations; $i++) |
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{ |
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// set 'start' marker for current iteration |
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$this->setMarker('start_'.$i); |
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// call function to be benchmarked |
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call_user_func_array($function_name, $arguments); |
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// set 'end' marker for current iteration |
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$this->setMarker('end_'.$i); |
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} |
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} |
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// }}} |
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// {{{ get() |
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/** |
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* Returns benchmark result. |
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* |
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* $result[x ] = execution time of iteration x |
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* $result['mean' ] = mean execution time |
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* $result['iterations'] = number of iterations |
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* |
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* @return array $result |
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* @access public |
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*/ |
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function get() |
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{ |
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// init result array |
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$result = array(); |
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// init variable |
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$total = 0; |
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$iterations = count($this->markers)/2; |
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// loop through iterations |
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for ($i = 1; $i <= $iterations; $i++) |
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{ |
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// get elapsed time for current iteration |
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$time = $this->timeElapsed('start_'.$i , 'end_'.$i); |
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// sum up total time spent |
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if (extension_loaded('bcmath')) { |
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$total = bcadd($total, $time, 6); |
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} else { |
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$total = $total + $time; |
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} |
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// store time |
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$result[$i] = $time; |
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} |
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// calculate and store mean time |
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if (extension_loaded('bcmath')) { |
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$result['mean'] = bcdiv($total, $iterations, 6); |
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} else { |
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$result['mean'] = $total / $iterations; |
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} |
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// store iterations |
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$result['iterations'] = $iterations; |
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// return result array |
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return $result; |
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} |
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// }}} |
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} |
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?> |
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