📍 /home/diasdiamonds/public_html/vendor/cakephp/debug_kit/src/Shell
📝 Editando: BenchmarkShell.php
<?php /** * CakePHP(tm) : Rapid Development Framework (http://cakephp.org) * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org) * * Licensed under The MIT License * Redistributions of files must retain the above copyright notice. * * @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org) * @link http://cakephp.org CakePHP(tm) Project * @since DebugKit 1.0 * @license http://www.opensource.org/licenses/mit-license.php MIT License */ namespace DebugKit\Shell; use Cake\Console\Shell; use Cake\Utility\Text; /** * Benchmark Shell Class * * Provides basic benchmarking of application requests * functionally similar to Apache AB * * @since DebugKit 1.0 * @todo Print/export time detail information * @todo Export/graphing of data to .dot format for graphviz visualization * @todo Make calculated results round to leading significant digit position of std dev. */ class BenchmarkShell extends Shell { /** * Main execution of shell * * @return void */ public function main() { $url = $this->args[0]; $defaults = ['t' => 100, 'n' => 10]; $options = array_merge($defaults, $this->params); $times = []; $this->out(Text::insert(__d('debug_kit', '-> Testing :url'), compact('url'))); $this->out(""); for ($i = 0; $i < $options['n']; $i++) { if (floor($options['t'] - array_sum($times)) <= 0 || $options['n'] <= 1) { break; } $start = microtime(true); file_get_contents($url); $stop = microtime(true); $times[] = $stop - $start; } $this->_results($times); } /** * Prints calculated results * * @param array $times Array of time values * @return void */ protected function _results($times) { $duration = array_sum($times); $requests = count($times); $this->out(Text::insert(__d('debug_kit', 'Total Requests made: :requests'), compact('requests'))); $this->out(Text::insert(__d('debug_kit', 'Total Time elapsed: :duration (seconds)'), compact('duration'))); $this->out(""); $this->out(Text::insert(__d('debug_kit', 'Requests/Second: :rps req/sec'), [ 'rps' => round($requests / $duration, 3) ])); $this->out(Text::insert(__d('debug_kit', 'Average request time: :average-time seconds'), [ 'average-time' => round($duration / $requests, 3) ])); $this->out(Text::insert(__d('debug_kit', 'Standard deviation of average request time: :std-dev'), [ 'std-dev' => round($this->_deviation($times, true), 3) ])); $this->out(Text::insert(__d('debug_kit', 'Longest/shortest request: :longest sec/:shortest sec'), [ 'longest' => round(max($times), 3), 'shortest' => round(min($times), 3) ])); $this->out(""); } /** * One-pass, numerically stable calculation of population variance. * * Donald E. Knuth (1998). * The Art of Computer Programming, volume 2: Seminumerical Algorithms, 3rd edn., * p. 232. Boston: Addison-Wesley. * * @param array $times Array of values * @param bool $sample If true, calculates an unbiased estimate of the population * variance from a finite sample. * @return float Variance */ protected function _variance($times, $sample = true) { $n = $mean = $M2 = 0; foreach ($times as $time) { $n += 1; $delta = $time - $mean; $mean = $mean + $delta / $n; $M2 = $M2 + $delta * ($time - $mean); } if ($sample) { $n -= 1; } return $M2 / $n; } /** * Calculate the standard deviation. * * @param array $times Array of values * @param bool $sample '' * @return float Standard deviation */ protected function _deviation($times, $sample = true) { return sqrt($this->_variance($times, $sample)); } /** * Get option parser. * * @return \Cake\Console\ConsoleOptionParser */ public function getOptionParser() { $parser = parent::getOptionParser(); $parser->description(__d( 'debug_kit', 'Allows you to obtain some rough benchmarking statistics' . 'about a fully qualified URL.' )) ->addArgument('url', [ 'help' => __d('debug_kit', 'The URL to request.'), 'required' => true ]) ->addOption('n', [ 'default' => 10, 'help' => __d('debug_kit', 'Number of iterations to perform.') ]) ->addOption('t', [ 'default' => 100, 'help' => __d( 'debug_kit', 'Maximum total time for all iterations, in seconds.' . 'If a single iteration takes more than the timeout, only one request will be made' ) ]) ->epilog(__d( 'debug_kit', 'Example Use: `cake benchmark --n 10 --t 100 http://localhost/testsite`. ' . '<info>Note:</info> this benchmark does not include browser render times.' )); return $parser; } }
[ Cancelar ]
Nome
Permissões
Ações
[ .. Voltar ]
📄 BenchmarkShell.php
0644
[ EDITAR/VER ]
📄 WhitespaceShell.php
0644
[ EDITAR/VER ]