XHProf: Hierarchical Profiler Report

Diff Report: Run #531ccb2cb8e3d: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #531ccbd4518b6: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Regression/Improvement summary for class_exists

class_exists	Run #531ccb2cb8e3d	Run #531ccbd4518b6	Diff	Diff%
Number of Function Calls	249	250	1	0.4%
Incl. Wall Time (microsec)	20,099	20,081	-18	-0.1%
Incl. Wall Time (microsec) per call	81	80	-0	-0.5%
Excl. Wall Time (microsec)	395	386	-9	-2.3%
Incl. CPU (microsecs)	20,241	20,207	-34	-0.2%
Incl. CPU (microsecs) per call	81	81	-0	-0.6%
Excl. CPU (microsec)	504	484	-20	-4.0%
Incl. MemUse (bytes)	4,139,472	4,139,152	-320	-0.0%
Incl. MemUse (bytes) per call	16,624	16,557	-68	-0.4%
Excl. MemUse (bytes)	-1,176	-1,176	0	0.0%
Incl. PeakMemUse (bytes)	3,892,712	3,887,960	-4,752	-0.1%
Incl. PeakMemUse (bytes) per call	15,633	15,552	-82	-0.5%
Excl. PeakMemUse (bytes)	8,896	9,136	240	2.7%

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%	-18	-18.4%	-34	-13.0%	-320	-0.8%	-4,752	-12.0%
Exclusive Metrics Diff for Current Function			-9	-50.0%	-20	-58.8%	0	0.0%	240	5.1%
*Parent functions*
Drupal\Core\Entity\EntityManager::getDefinition	0	0.0%	-65	-361.1%	-66	-194.1%	-352	-110.0%	-4,544	-95.6%
Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass	0	0.0%	43	238.9%	45	132.4%	-16	-5.0%	504	10.6%
Drupal\Core\Controller\ControllerResolver::createController	0	0.0%	-41	-227.8%	-42	-123.5%	0	0.0%	0	0.0%
Drupal\Core\Database\Connection::getDriverClass	0	0.0%	26	144.4%	27	79.4%	-40	-12.5%	-32	-0.7%
Drupal\Core\Entity\EntityType::hasControllerClass	0	0.0%	24	133.3%	17	50.0%	-8	-2.5%	-664	-14.0%
Drupal\Core\Entity\Query\QueryBase::getClass	0	0.0%	-18	-100.0%	-22	-64.7%	32	10.0%	-176	-3.7%
Drupal\Core\Form\FormBuilder::getFormId	0	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::intlDateFormatterExists	0	0.0%	0	0.0%	0	0.0%	-16	-5.0%	0	0.0%
file_stream_wrapper_valid_scheme	0	0.0%	0	0.0%	1	2.9%	0	0.0%	0	0.0%
Drupal\Core\ImageToolkit\ImageToolkitManager::getDefaultToolkit	0	0.0%	0	0.0%	-2	-5.9%	0	0.0%	0	0.0%
Drupal\Core\DrupalKernel::initializeContainer	0	0.0%	0	0.0%	-3	-8.8%	0	0.0%	0	0.0%
file_stream_wrapper_get_instance_by_scheme	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
file_stream_wrapper_get_instance_by_uri	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
*Child function*
Symfony\Component\ClassLoader\ApcClassLoader::loadClass	0	N/A%	-9	-50.0%	-14	-41.2%	-320	-100.0%	-4,992	-105.1%