Magento shell script used for analyzing the performance of the Emico_Tweakwise_Helper_Data::getFilterCategory method.

testCategoryLoad.php

<?php
/**
 * ISAAC Category Load Tester
 *
 * @category    ISAAC
 * @package     ISAAC_Category 
 * @copyright   Copyright (c) 2018 ISAAC Software Solutions B.V. (https://www.isaac.nl)
 * @license     proprietary
 * @author      ISAAC Software Solutions B.V. (https://www.isaac.nl)
 */
require_once 'abstract.php';

class ISAAC_Category_Load_Tester extends Mage_Shell_Abstract
{
    public function run()
    {
        $loadInBulk = false;
        $useFlatTable = false;
        $restrictedAttributes = false;
        $addUrlRewrite = false;
        if (!$this->getArg('category')) {
            echo 'category is required ' . PHP_EOL;
            $this->usageHelp();
            return;
        }
        $categoryId = $this->getArg('category');
        $category = Mage::getModel('catalog/category')->load($categoryId);
        if (!$category->getId()) {
            echo sprintf('error: could not find category with id %s', $categoryId) . PHP_EOL;
            return;
        }
        if ($this->getArg('load-in-bulk')) {
            $loadInBulk = true;
        }
        if ($this->getArg('use-flat-table')) {
            $useFlatTable = true;
        }
        if ($this->getArg('restricted-attributes')) {
            $restrictedAttributes = true;
        }
        if ($this->getArg('add-url-rewrite')) {
            $addUrlRewrite = true;
        }
        Mage::app()->setCurrentStore(1);
        $time = microtime(true);
        $categoryIds = $category->getResource()->getChildren($category);
        if ($loadInBulk) {
            $this->printCategories(
                $this->getCategoriesByIds($categoryIds, $useFlatTable, $restrictedAttributes, $addUrlRewrite)
            );
        } else {
            foreach ($categoryIds as $categoryId) {
                $this->printCategories(
                    $this->getCategoriesByIds($categoryId, $useFlatTable, $restrictedAttributes, $addUrlRewrite)
                );
            }
        }
        echo sprintf(
            'Loading categories %s with %s attributes took %s seconds',
            $loadInBulk ? 'in bulk' : 'one by one',
            $restrictedAttributes ? 'restricted' : 'all',
            microtime(true) - $time
        ) . PHP_EOL;
        return;
    }

    protected function getCategoriesByIds($categoryIds, $useFlatTable, $restrictedAttributes, $addUrlRewrite)
    {
        if ($useFlatTable) {
            $categoryCollection = Mage::getModel('catalog/category')->getCollection();
        } else {
            $categoryCollection = Mage::getResourceModel('catalog/category_collection');
        }
        if ($restrictedAttributes) {
            $categoryCollection->addAttributeToSelect('url_key');
            $categoryCollection->addAttributeToSelect('include_in_menu');
        } else {
            $categoryCollection->addAttributeToSelect('*');
        }
        $categoryCollection->addIdFilter($categoryIds);
        if ($addUrlRewrite) {
            $categoryCollection->addUrlRewriteToResult();
        }
        return $categoryCollection->getItems();
    }
    
    protected function printCategories($categories)
    {
        foreach ($categories as $category) {
            echo sprintf(
                'category %d (%s, parent %d, %s): %s',
                $category->getId(),
                $category->getUrlKey(),
                $category->getParentId(),
                ($category->getIncludeInMenu() ? 'included in menu' : 'not included in menu'),
                $category->getUrl()
            ) . PHP_EOL;
        }
    }

    public function usageHelp()
    {
        global $argv;
        echo $argv[0] . ' --category CATEGORY_ID [--load-in-bulk] [--use-flat-table] [--restricted-attributes] [--add-url-rewrite]' . PHP_EOL;
        echo PHP_EOL;
        echo 'Tests category load for the children of CATEGORY_ID analyzing the performance of the Emico_Tweakwise_Helper_Data::getFilterCategory method.' . PHP_EOL;
        echo PHP_EOL;
    }
}

$shell = new ISAAC_Category_Load_Tester();
$shell->run();