Diff Report
Run #534ad9c94e95b: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #534ad8dec7444: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for class_exists

class_existsRun #534ad9c94e95bRun #534ad8dec7444DiffDiff%
Number of Function Calls435 434 -1 -0.2%
Incl. Wall Time (microsec)17,680 17,875 195 1.1%
Incl. Wall Time (microsec) per call 41 41 1 1.3%
Excl. Wall Time (microsec)1,278 1,295 17 1.3%
Incl. CPU (microsecs)18,183 18,382 199 1.1%
Incl. CPU (microsecs) per call 42 42 1 1.3%
Excl. CPU (microsec)1,681 1,694 13 0.8%
Incl. MemUse (bytes)2,610,708 2,610,676 -32 -0.0%
Incl. MemUse (bytes) per call 6,002 6,015 14 0.2%
Excl. MemUse (bytes)-16,580 -16,580 0 0.0%
Incl. PeakMemUse (bytes)2,264,964 2,264,888 -76 -0.0%
Incl. PeakMemUse (bytes) per call 5,207 5,219 12 0.2%
Excl. PeakMemUse (bytes)9,332 9,316 -16 -0.2%

Parent/Child Regression/Improvement report for class_exists [View Callgraph Diff]


Function NameCalls DiffCalls
Diff%		Incl. Wall
Diff
(microsec)		IWall
Diff%		Incl. CPU Diff
(microsec)		ICpu
Diff%		Incl.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
class_exists-1 -100.0% 195 11.8% 199 39.9% -32 -0.1% -76 -0.3%
Exclusive Metrics Diff for Current Function17 8.7% 13 6.5% 0 0.0% -16 -21.1%
Parent functions
Drupal\Core\Entity\EntityManager::getDefinition0 0.0% 218 111.8% 217 109.0% -20 -62.5% -52 -68.4%
Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass0 0.0% -112 -57.4% -108 -54.3% -8 -25.0% -12 -15.8%
Drupal\Core\Database\Query\Select::extend0 0.0% 108 55.4% 107 53.8% 0 0.0% 0 0.0%
Drupal\Core\Form\FormBuilder::getFormId0 0.0% -6 -3.1% -8 -4.0% 0 0.0% -12 -15.8%
Drupal\Core\Entity\Query\QueryBase::getClass0 0.0% -4 -2.1% 2 1.0% 0 0.0% 0 0.0%
Drupal\Core\Template\TwigEnvironment::loadTemplate-1 -100.0% -4 -2.1% 1 0.5% 0 0.0% 0 0.0%
Drupal\Core\Controller\ControllerResolver::createController0 0.0% -3 -1.5% -3 -1.5% 0 0.0% 0 0.0%
Drupal\Core\Database\Connection::getDriverClass0 0.0% -2 -1.0% -4 -2.0% 8 25.0% 8 10.5%
Drupal\Component\Datetime\DateTimePlus::intlDateFormatterExists0 0.0% -1 -0.5% -2 -1.0% 0 0.0% 0 0.0%
Drupal\Core\DrupalKernel::initializeContainer0 0.0% 1 0.5% 0 0.0% 0 0.0% 0 0.0%
file_stream_wrapper_get_instance_by_scheme0 0.0% 0 0.0% 1 0.5% 0 0.0% 0 0.0%
Drupal\Core\Entity\EntityType::hasControllerClass0 0.0% 0 0.0% -4 -2.0% -12 -37.5% -8 -10.5%
Child function
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% 178 91.3% 186 93.5% -32 -100.0% -60 -78.9%