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<?php |
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|
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namespace GeminiLabs\BlackBar; |
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|
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class Profiler |
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{ |
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/** |
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* This is the time that WordPress takes to execute the profiler hook |
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* @var int |
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*/ |
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protected $noise = 0; |
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|
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/** |
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* @var int |
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*/ |
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protected $start = null; |
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|
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/** |
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* @var int |
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*/ |
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protected $stop = null; |
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|
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/** |
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* @var array |
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*/ |
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protected $timers = array(); |
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|
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/** |
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* @return array |
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*/ |
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public function getMeasure() |
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{ |
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return $this->timers; |
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} |
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|
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/** |
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* @param array $timer |
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* @return string |
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*/ |
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public function getMemoryString( $timer ) |
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{ |
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$timer = $this->normalize( $timer ); |
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return sprintf( '%s kB', round( $timer['memory'] / 1000 )); |
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} |
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|
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/** |
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* @param array $timer |
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* @return string |
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*/ |
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public function getNameString( $timer ) |
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{ |
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$timer = $this->normalize( $timer ); |
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return $timer['name']; |
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} |
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|
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/** |
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* @param array $timer |
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* @return string |
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*/ |
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public function getTimeString( $timer ) |
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{ |
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$timer = $this->normalize( $timer ); |
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$index = array_search( $timer['name'], array_column( $this->timers, 'name' )); |
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$start = $this->start + ( $index * $this->noise ); |
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$time = number_format( round(( $timer['time'] - $start ) * 1000, 4 ), 4 ); |
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return sprintf( '%s ms', $time ); |
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} |
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|
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/** |
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* @return int Microseconds |
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*/ |
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public function getTotalTime() |
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{ |
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$totalNoise = ( count( $this->timers ) - 1 ) * $this->noise; |
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return $this->stop - $this->start - $totalNoise; |
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} |
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|
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/** |
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* @param string $name |
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* @return void |
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*/ |
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public function trace( $name ) |
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{ |
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$microtime = microtime( true ); |
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if( !$this->start ) { |
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$this->start = $microtime; |
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} |
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if( $name === 'blackbar/profiler/noise' ) { |
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$this->noise = $microtime - $this->start; |
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return; |
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} |
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$this->timers[] = array( |
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'memory' => memory_get_peak_usage(), |
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'name' => $name, |
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'time' => $microtime, |
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); |
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$this->stop = $microtime; |
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} |
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|
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/** |
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* @param array $timer |
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* @return array |
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*/ |
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protected function normalize( $timer ) |
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{ |
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return wp_parse_args( (array)$timer, array( |
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'memory' => 0, |
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'name' => '', |
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'time' => 0, |
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)); |
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} |
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} |
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|
