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<?php declare(strict_types=1); |
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/** |
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* @maintainer Timur Shagiakhmetov <[email protected]> |
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*/ |
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namespace Badoo\LiveProfilerUI; |
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class FlameGraph |
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{ |
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/** |
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* Get svg data for flame graph |
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* @param string $graph_input |
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* @return string |
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*/ |
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public static function getSVG(string $graph_input) : string |
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{ |
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4 |
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if (!$graph_input) { |
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return ''; |
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} |
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$tmp_file = tempnam(__DIR__, 'flamefile'); |
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file_put_contents($tmp_file, $graph_input); |
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exec('perl ' . __DIR__ . '/../../../scripts/flamegraph.pl ' . $tmp_file, $output); |
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unlink($tmp_file); |
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return implode("\n", $output); |
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} |
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/** |
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* @param \Badoo\LiveProfilerUI\Entity\MethodTree[] $elements |
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* @param array $parents_param |
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* @param array $parent |
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* @param string $param |
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* @param float $threshold |
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* @param int $level |
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* @return string |
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*/ |
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public static function buildFlameGraphInput( |
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array $elements, |
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array $parents_param, |
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array $parent, |
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string $param, |
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float $threshold, |
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int $level = 0 |
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) : string { |
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if ($level > 50) { |
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// limit nesting level |
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1 |
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return ''; |
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} |
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$texts = ''; |
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foreach ($elements as $Element) { |
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if ($Element->getParentId() === $parent['method_id']) { |
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$element_value = $Element->getValue($param); |
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$value = $parent[$param] - $element_value; |
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if (($value <= 0) && !empty($parents_param[$Element->getParentId()])) { |
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1 |
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$p = $parents_param[$Element->getParentId()]; |
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1 |
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$sum_p = array_sum($p); |
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1 |
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$element_value = 0; |
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1 |
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if ($sum_p !== 0) { |
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1 |
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$element_value = ($parent[$param] / $sum_p) * $Element->getValue($param); |
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} |
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1 |
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$value = $parent[$param] - $element_value; |
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} |
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if ($element_value < $threshold) { |
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continue; |
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} |
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$new_parent = [ |
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'method_id' => $Element->getMethodId(), |
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'name' => $parent['name'] . ';' . $Element->getMethodNameAlt(), |
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$param => $element_value |
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]; |
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2 |
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$texts .= self::buildFlameGraphInput( |
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2 |
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$elements, |
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2 |
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$parents_param, |
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$new_parent, |
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$param, |
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$threshold, |
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$level + 1 |
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); |
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$parent[$param] = $value; |
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} |
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} |
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$texts .= $parent['name'] . ' ' . $parent[$param] . "\n"; |
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return $texts; |
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} |
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} |
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badoo /
liveprof-ui
