Diff Report
Run #531ccbd4518b6: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #531ccb2cb8e3d: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for class_exists

class_existsRun #531ccbd4518b6Run #531ccb2cb8e3dDiffDiff%
Number of Function Calls250 249 -1 -0.4%
Incl. Wall Time (microsec)20,081 20,099 18 0.1%
Incl. Wall Time (microsec) per call 80 81 0 0.5%
Excl. Wall Time (microsec)386 395 9 2.3%
Incl. CPU (microsecs)20,207 20,241 34 0.2%
Incl. CPU (microsecs) per call 81 81 0 0.6%
Excl. CPU (microsec)484 504 20 4.1%
Incl. MemUse (bytes)4,139,152 4,139,472 320 0.0%
Incl. MemUse (bytes) per call 16,557 16,624 68 0.4%
Excl. MemUse (bytes)-1,176 -1,176 0 0.0%
Incl. PeakMemUse (bytes)3,887,960 3,892,712 4,752 0.1%
Incl. PeakMemUse (bytes) per call 15,552 15,633 82 0.5%
Excl. PeakMemUse (bytes)9,136 8,896 -240 -2.6%

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% 18 18.4% 34 13.0% 320 0.8% 4,752 12.0%
Exclusive Metrics Diff for Current Function9 50.0% 20 58.8% 0 0.0% -240 -5.1%
Parent functions
Drupal\Core\Entity\EntityManager::getDefinition0 0.0% 65 361.1% 66 194.1% 352 110.0% 4,544 95.6%
Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass0 0.0% -43 -238.9% -45 -132.4% 16 5.0% -504 -10.6%
Drupal\Core\Controller\ControllerResolver::createController0 0.0% 41 227.8% 42 123.5% 0 0.0% 0 0.0%
Drupal\Core\Database\Connection::getDriverClass0 0.0% -26 -144.4% -27 -79.4% 40 12.5% 32 0.7%
Drupal\Core\Entity\EntityType::hasControllerClass0 0.0% -24 -133.3% -17 -50.0% 8 2.5% 664 14.0%
Drupal\Core\Entity\Query\QueryBase::getClass0 0.0% 18 100.0% 22 64.7% -32 -10.0% 176 3.7%
Drupal\Core\Form\FormBuilder::getFormId0 0.0% -12 -66.7% -12 -35.3% -80 -25.0% -160 -3.4%
Drupal\Core\Template\TwigEnvironment::loadTemplate-1 -100.0% -1 -5.6% 1 2.9% 0 0.0% 0 0.0%
Drupal\Component\Datetime\DateTimePlus::intlDateFormatterExists0 0.0% 0 0.0% 0 0.0% 16 5.0% 0 0.0%
file_stream_wrapper_valid_scheme0 0.0% 0 0.0% -1 -2.9% 0 0.0% 0 0.0%
Drupal\Core\ImageToolkit\ImageToolkitManager::getDefaultToolkit0 0.0% 0 0.0% 2 5.9% 0 0.0% 0 0.0%
Drupal\Core\DrupalKernel::initializeContainer0 0.0% 0 0.0% 3 8.8% 0 0.0% 0 0.0%
file_stream_wrapper_get_instance_by_scheme0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
file_stream_wrapper_get_instance_by_uri0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Child function
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% 9 50.0% 14 41.2% 320 100.0% 4,992 105.1%