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

class_existsRun #534ad8dec7444Run #534ad9c94e95bDiffDiff%
Number of Function Calls434 435 1 0.2%
Incl. Wall Time (microsec)17,875 17,680 -195 -1.1%
Incl. Wall Time (microsec) per call 41 41 -1 -1.3%
Excl. Wall Time (microsec)1,295 1,278 -17 -1.3%
Incl. CPU (microsecs)18,382 18,183 -199 -1.1%
Incl. CPU (microsecs) per call 42 42 -1 -1.3%
Excl. CPU (microsec)1,694 1,681 -13 -0.8%
Incl. MemUse (bytes)2,610,676 2,610,708 32 0.0%
Incl. MemUse (bytes) per call 6,015 6,002 -14 -0.2%
Excl. MemUse (bytes)-16,580 -16,580 0 0.0%
Incl. PeakMemUse (bytes)2,264,888 2,264,964 76 0.0%
Incl. PeakMemUse (bytes) per call 5,219 5,207 -12 -0.2%
Excl. PeakMemUse (bytes)9,316 9,332 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_exists1 100.0% -195 -11.8% -199 -39.9% 32 0.1% 76 0.3%
Exclusive Metrics Diff for Current Function-17 -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::loadTemplate1 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%