XHProf: Hierarchical Profiler Report

Diff Report: Run #51ec623000e0c: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec66a5a877d: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Regression/Improvement summary for class_exists

class_exists	Run #51ec623000e0c	Run #51ec66a5a877d	Diff	Diff%
Number of Function Calls	772	773	1	0.1%
Incl. Wall Time (microsec)	23,009	23,257	248	1.1%
Incl. Wall Time (microsec) per call	30	30	0	0.9%
Excl. Wall Time (microsec)	1,575	1,574	-1	-0.1%
Incl. CPU (microsecs)	23,673	23,924	251	1.1%
Incl. CPU (microsecs) per call	31	31	0	0.9%
Excl. CPU (microsec)	2,056	2,039	-17	-0.8%
Incl. MemUse (bytes)	2,195,992	2,195,640	-352	-0.0%
Incl. MemUse (bytes) per call	2,845	2,840	-4	-0.1%
Excl. MemUse (bytes)	-16,872	-16,872	0	0.0%
Incl. PeakMemUse (bytes)	1,522,152	1,515,952	-6,200	-0.4%
Incl. PeakMemUse (bytes) per call	1,972	1,961	-11	-0.5%
Excl. PeakMemUse (bytes)	8,472	9,128	656	7.7%

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%	248	10.6%	251	7.3%	-352	-0.4%	-6,200	-8.5%
Exclusive Metrics Diff for Current Function			-1	-0.4%	-17	-6.8%	0	0.0%	656	10.6%
*Parent functions*
Drupal\Core\Template\TwigEnvironment::loadTemplate	1	100.0%	1	0.4%	-2	-0.8%	0	0.0%	0	0.0%
Drupal\Component\Datetime\DateTimePlus::canUseIntl	0	0.0%	270	108.9%	280	111.6%	0	0.0%	0	0.0%
Doctrine\Common\Annotations\DocParser::classExists	0	0.0%	-11	-4.4%	-3	-1.2%	0	0.0%	0	0.0%
file_stream_wrapper_valid_scheme	0	0.0%	-7	-2.8%	-11	-4.4%	0	0.0%	0	0.0%
file_stream_wrapper_get_instance_by_uri	0	0.0%	1	0.4%	6	2.4%	0	0.0%	0	0.0%
Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass	0	0.0%	82	33.1%	63	25.1%	-264	-75.0%	-200	-3.2%
Drupal\Core\Controller\ControllerResolver::createController	0	0.0%	-1	-0.4%	-2	-0.8%	0	0.0%	0	0.0%
Drupal\Core\Config\Context\ConfigContextFactory::get	0	0.0%	1	0.4%	1	0.4%	0	0.0%	0	0.0%
Drupal\Core\DrupalKernel::initializeContainer	0	0.0%	0	0.0%	3	1.2%	0	0.0%	0	0.0%
file_stream_wrapper_get_instance_by_scheme	0	0.0%	0	0.0%	2	0.8%	0	0.0%	0	0.0%
Drupal\Core\Entity\EntityManager::getControllerClass	0	0.0%	-20	-8.1%	-18	-7.2%	-56	-15.9%	584	9.4%
Drupal\Core\Database\Connection::getDriverClass	0	0.0%	-68	-27.4%	-68	-27.1%	-32	-9.1%	-6,584	-106.2%
_drupal_simpletest_conf_path	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
*Child functions*
Symfony\Component\ClassLoader\ClassLoader::loadClass	0	N/A%	248	100.0%	253	100.8%	0	0.0%	0	0.0%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass	0	N/A%	1	0.4%	15	6.0%	-352	-100.0%	-6,856	-110.6%