* @since 2.0 */ class ProfilingPanel extends Panel { public function getName() { return 'Profiling'; } public function getSummary() { $memory = sprintf('%.1f MB', $this->data['memory'] / 1048576); $time = number_format($this->data['time'] * 1000) . ' ms'; $url = $this->getUrl(); return << Time $time
Memory $memory
EOD; } public function getDetail() { $messages = $this->data['messages']; $timings = array(); $stack = array(); foreach ($messages as $i => $log) { list($token, $level, $category, $timestamp) = $log; $log[4] = $i; if ($level == Logger::LEVEL_PROFILE_BEGIN) { $stack[] = $log; } elseif ($level == Logger::LEVEL_PROFILE_END) { if (($last = array_pop($stack)) !== null && $last[0] === $token) { $timings[$last[4]] = array(count($stack), $token, $category, $timestamp - $last[3]); } } } $now = microtime(true); while (($last = array_pop($stack)) !== null) { $delta = $now - $last[3]; $timings[$last[4]] = array(count($stack), $last[0], $last[2], $delta); } ksort($timings); $rows = array(); foreach ($timings as $timing) { $time = sprintf('%.1f ms', $timing[3] * 1000); $procedure = str_repeat('→', $timing[0]) . Html::encode($timing[1]); $category = Html::encode($timing[2]); $rows[] = "$time$category$procedure"; } $rows = implode("\n", $rows); $memory = sprintf('%.1f MB', $this->data['memory'] / 1048576); $time = number_format($this->data['time'] * 1000) . ' ms'; return <<Performance Profiling

Total processing time: $time; Peak memory: $memory.

$rows
Time Category Procedure
EOD; } public function save() { $target = $this->module->logTarget; $messages = $target->filterMessages($target->messages, Logger::LEVEL_PROFILE); return array( 'memory' => memory_get_peak_usage(), 'time' => microtime(true) - YII_BEGIN_TIME, 'messages' => $messages, ); } }