XHProf: Hierarchical Profiler Report

Diff Report: Run #531ee657ba49e: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #531ee5f3237b0: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Regression/Improvement summary for class_exists

class_exists	Run #531ee657ba49e	Run #531ee5f3237b0	Diff	Diff%
Number of Function Calls	250	249	-1	-0.4%
Incl. Wall Time (microsec)	19,972	20,345	373	1.9%
Incl. Wall Time (microsec) per call	80	82	2	2.3%
Excl. Wall Time (microsec)	398	393	-5	-1.3%
Incl. CPU (microsecs)	20,120	20,488	368	1.8%
Incl. CPU (microsecs) per call	80	82	2	2.2%
Excl. CPU (microsec)	513	505	-8	-1.6%
Incl. MemUse (bytes)	4,139,560	4,141,912	2,352	0.1%
Incl. MemUse (bytes) per call	16,558	16,634	76	0.5%
Excl. MemUse (bytes)	-1,176	-1,192	-16	-1.4%
Incl. PeakMemUse (bytes)	3,895,624	3,894,896	-728	-0.0%
Incl. PeakMemUse (bytes) per call	15,582	15,642	60	0.4%
Excl. PeakMemUse (bytes)	8,984	8,776	-208	-2.3%

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

Function Name	Calls Diff	Calls 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%	373	14.8%	368	12.2%	2,352	3.1%	-728	-0.9%
Exclusive Metrics Diff for Current Function			-5	-1.3%	-8	-2.2%	-16	-0.7%	-208	-28.6%
*Parent functions*
Drupal\Core\Entity\EntityManager::getDefinition	0	0.0%	146	39.1%	142	38.6%	536	22.8%	1,128	154.9%
Drupal\Core\Entity\EntityType::hasControllerClass	0	0.0%	127	34.0%	127	34.5%	352	15.0%	-24	-3.3%
Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass	0	0.0%	85	22.8%	85	23.1%	24	1.0%	-368	-50.5%
Drupal\Core\Database\Connection::getDriverClass	0	0.0%	37	9.9%	37	10.1%	-96	-4.1%	16	2.2%
Drupal\Core\Entity\Query\QueryBase::getClass	0	0.0%	-23	-6.2%	-23	-6.2%	-88	-3.7%	-3,448	-473.6%
Drupal\Core\Controller\ControllerResolver::createController	0	0.0%	9	2.4%	9	2.4%	0	0.0%	-56	-7.7%
Drupal\Core\Form\FormBuilder::getFormId	0	0.0%	-7	-1.9%	-9	-2.4%	1,600	68.0%	2,016	276.9%
Drupal\Core\Template\TwigEnvironment::loadTemplate	-1	-100.0%	-1	-0.3%	2	0.5%	0	0.0%	0	0.0%
Drupal\Core\ImageToolkit\ImageToolkitManager::getDefaultToolkitId	1	100.0%	1	0.3%	3	0.8%	824	35.0%	728	100.0%
Drupal\Core\ImageToolkit\ImageToolkitManager::getDefaultToolkit	-1	-100.0%	-1	-0.3%	-4	-1.1%	-816	-34.7%	-720	-98.9%
Drupal\Component\Datetime\DateTimePlus::intlDateFormatterExists	0	0.0%	0	0.0%	-4	-1.1%	16	0.7%	0	0.0%
file_stream_wrapper_get_instance_by_uri	0	0.0%	0	0.0%	-1	-0.3%	0	0.0%	0	0.0%
file_stream_wrapper_get_instance_by_scheme	0	0.0%	0	0.0%	-2	-0.5%	0	0.0%	0	0.0%
Drupal\Core\DrupalKernel::initializeContainer	0	0.0%	0	0.0%	3	0.8%	0	0.0%	0	0.0%
file_stream_wrapper_valid_scheme	0	0.0%	0	0.0%	3	0.8%	0	0.0%	0	0.0%
*Child function*
Symfony\Component\ClassLoader\ApcClassLoader::loadClass	0	N/A%	378	101.3%	376	102.2%	2,368	100.7%	-520	-71.4%