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vendor/yiisoft/yii2-debug/panels/ProfilingPanel.php

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+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\debug\panels;
+
+use Yii;
+use yii\debug\Panel;
+use yii\log\Logger;
+use yii\debug\models\search\Profile;
+
+/**
+ * Debugger panel that collects and displays performance profiling info.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class ProfilingPanel extends Panel
+{
+    /**
+     * @var array current request profile timings
+     */
+    private $_models;
+
+
+    /**
+     * @inheritdoc
+     */
+    public function getName()
+    {
+        return 'Profiling';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getSummary()
+    {
+        return Yii::$app->view->render('panels/profile/summary', [
+            'memory' => sprintf('%.3f MB', $this->data['memory'] / 1048576),
+            'time' => number_format($this->data['time'] * 1000) . ' ms',
+            'panel' => $this
+        ]);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getDetail()
+    {
+        $searchModel = new Profile();
+        $dataProvider = $searchModel->search(Yii::$app->request->getQueryParams(), $this->getModels());
+
+        return Yii::$app->view->render('panels/profile/detail', [
+            'panel' => $this,
+            'dataProvider' => $dataProvider,
+            'searchModel' => $searchModel,
+            'memory' => sprintf('%.3f MB', $this->data['memory'] / 1048576),
+            'time' => number_format($this->data['time'] * 1000) . ' ms',
+        ]);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function save()
+    {
+        $target = $this->module->logTarget;
+        $messages = $target->filterMessages($target->messages, Logger::LEVEL_PROFILE);
+        return [
+            'memory' => memory_get_peak_usage(),
+            'time' => microtime(true) - YII_BEGIN_TIME,
+            'messages' => $messages,
+        ];
+    }
+
+    /**
+     * Returns array of profiling models that can be used in a data provider.
+     * @return array models
+     */
+    protected function getModels()
+    {
+        if ($this->_models === null) {
+            $this->_models = [];
+            $timings = Yii::getLogger()->calculateTimings(isset($this->data['messages']) ? $this->data['messages'] : []);
+
+            foreach ($timings as $seq => $profileTiming) {
+                $this->_models[] = 	[
+                    'duration' => $profileTiming['duration'] * 1000, // in milliseconds
+                    'category' => $profileTiming['category'],
+                    'info' => $profileTiming['info'],
+                    'level' => $profileTiming['level'],
+                    'timestamp' => $profileTiming['timestamp'] * 1000, //in milliseconds
+                    'seq' => $seq,
+                ];
+            }
+        }
+
+        return $this->_models;
+    }
+}