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<?php |
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/** |
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* Webperf plugin for Craft CMS 3.x |
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* |
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* Monitor the performance of your webpages through real-world user timing data |
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* |
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* @link https://nystudio107.com |
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* @copyright Copyright (c) 2019 nystudio107 |
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*/ |
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namespace nystudio107\webperf\recommendations; |
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use nystudio107\webperf\base\Recommendation; |
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use Craft; |
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/** |
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* @author nystudio107 |
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* @package Webperf |
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* @since 1.0.0 |
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*/ |
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class MemoryLimit extends Recommendation |
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{ |
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// Constants |
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// ========================================================================= |
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const MIN_CRAFT_MEMORY = 64 * 1024 * 1024; |
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const MAX_CRAFT_MEMORY = 1024 * 1024 * 1024; |
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// Public Methods |
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// ========================================================================= |
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/** |
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* @inheritdoc |
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*/ |
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public function evaluate() |
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{ |
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$phpMemoryLimit = $this->memoryLimit(); |
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if ($phpMemoryLimit && $this->sample->craftTotalMemory) { |
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$ratio = $phpMemoryLimit / $this->sample->craftTotalMemory; |
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$displayCraftTotalMemory = (($this->sample->craftTotalMemory / 1024) / 1024) . 'M'; |
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$displayPhpMemoryLimit = (($phpMemoryLimit / 1024) / 1024) . 'M'; |
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$displayCraftMinMemory = ((self::MIN_CRAFT_MEMORY / 1024) / 1024) . 'M'; |
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$displayCraftMaxMemory = ((self::MAX_CRAFT_MEMORY / 1024) / 1024) . 'M'; |
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$this->summary = Craft::t( |
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'webperf', |
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'Check the `memory_limit` setting in your `php.ini` file', |
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[] |
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); |
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// See if they have enough memory allocated |
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if ($phpMemoryLimit < self::MIN_CRAFT_MEMORY) { |
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$this->hasRecommendation = true; |
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$this->detail = Craft::t( |
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'webperf', |
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'Pixel & Tonic recommends at least {displayCraftMinMemory} allocated to PHP for Craft CMS 3. You have only {displayPhpMemoryLimit} allocated in your `php.ini` file.', |
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[ |
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'displayPhpMemoryLimit' => $displayPhpMemoryLimit, |
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'displayCraftMinMemory' => $displayCraftMinMemory, |
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] |
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); |
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$this->learnMoreUrl = 'https://docs.craftcms.com/v3/requirements.html'; |
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return; |
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} |
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// See if they have too much memory allocated |
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if ($phpMemoryLimit >= self::MAX_CRAFT_MEMORY) { |
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$this->hasRecommendation = true; |
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$this->detail = Craft::t( |
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'webperf', |
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'Your `php.ini` file has `memory_limit` set to {displayPhpMemoryLimit}. This may be set too high, since it is a per-process memory limit, and memory-intensive image transforms are done in a process separate from PHP.', |
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[ |
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'displayPhpMemoryLimit' => $displayPhpMemoryLimit, |
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] |
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); |
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$this->learnMoreUrl = 'https://docs.craftcms.com/v3/requirements.html'; |
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return; |
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} |
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// See if they have too much memory allocated |
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if ($ratio < 1.5) { |
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$this->hasRecommendation = true; |
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$this->detail = Craft::t( |
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'webperf', |
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'Your `php.ini` file has `memory_limit` set to {displayPhpMemoryLimit}, but Craft is using {displayCraftTotalMemory}. Consider raising your `memory_limit` to maintain a `1.5x` buffer of available memory.', |
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[ |
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'displayPhpMemoryLimit' => $displayPhpMemoryLimit, |
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'displayCraftTotalMemory' => $displayCraftTotalMemory, |
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] |
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); |
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$this->learnMoreUrl = 'https://docs.craftcms.com/v3/requirements.html'; |
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return; |
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} |
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} |
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} |
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// Protected Methods |
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// ========================================================================= |
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/** |
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* @return int |
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*/ |
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protected function memoryLimit(): int |
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{ |
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$memoryLimit = ini_get('memory_limit'); |
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if (preg_match('/^(\d+)(.)$/', $memoryLimit, $matches)) { |
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if (strtoupper($matches[2]) === 'M') { |
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$memoryLimit = $matches[1] * 1024 * 1024; // nnnM -> nnn MB |
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} elseif (strtoupper($matches[2]) === 'K') { |
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$memoryLimit = $matches[1] * 1024; // nnnK -> nnn KB |
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} |
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} |
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return $memoryLimit; |
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} |
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} |
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nystudio107 /
craft-webperf
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