Diff Report
Run #52e49b394aea8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e49acfb0eb8: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for class_exists

class_existsRun #52e49b394aea8Run #52e49acfb0eb8DiffDiff%
Number of Function Calls112 111 -1 -0.9%
Incl. Wall Time (microsec)4,950 5,393 443 8.9%
Incl. Wall Time (microsec) per call 44 49 4 9.9%
Excl. Wall Time (microsec)243 245 2 0.8%
Incl. CPU (microsecs)5,052 5,484 432 8.6%
Incl. CPU (microsecs) per call 45 49 4 9.5%
Excl. CPU (microsec)313 320 7 2.2%
Incl. MemUse (bytes)1,896,176 1,933,056 36,880 1.9%
Incl. MemUse (bytes) per call 16,930 17,415 485 2.9%
Excl. MemUse (bytes)-4,112 -4,104 8 0.2%
Incl. PeakMemUse (bytes)1,551,192 1,613,712 62,520 4.0%
Incl. PeakMemUse (bytes) per call 13,850 14,538 688 5.0%
Excl. PeakMemUse (bytes)10,984 10,640 -344 -3.1%

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% 443 39.9% 432 53.0% 36,880 142.6% 62,520 236.7%
Exclusive Metrics Diff for Current Function2 0.5% 7 1.6% 8 0.0% -344 -0.6%
Parent functions
Drupal\Core\Entity\EntityType::hasControllerClass0 0.0% 323 72.9% 313 72.5% 32,752 88.8% 61,504 98.4%
Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass0 0.0% 111 25.1% 110 25.5% 4,128 11.2% 4,216 6.7%
Drupal\Core\Database\Connection::getDriverClass0 0.0% 16 3.6% 15 3.5% -16 -0.0% -72 -0.1%
Drupal\Core\Form\FormBuilder::getFormId0 0.0% -3 -0.7% -4 -0.9% 0 0.0% 0 0.0%
Drupal\Core\Controller\ControllerResolver::createController0 0.0% -2 -0.5% -1 -0.2% 0 0.0% 0 0.0%
Drupal\Core\Entity\Query\QueryBase::getClass0 0.0% 1 0.2% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\Template\TwigEnvironment::loadTemplate-1 -100.0% -1 -0.2% -5 -1.2% 0 0.0% 0 0.0%
Drupal\Core\Entity\EntityManager::getDefinition0 0.0% -1 -0.2% 7 1.6% 16 0.0% -3,128 -5.0%
Drupal\Component\Datetime\DateTimePlus::intlDateFormatterExists0 0.0% -1 -0.2% -1 -0.2% 0 0.0% 0 0.0%
Drupal\Core\DrupalKernel::initializeContainer0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
file_stream_wrapper_get_instance_by_scheme0 0.0% 0 0.0% -1 -0.2% 0 0.0% 0 0.0%
_drupal_simpletest_conf_path0 0.0% 0 0.0% -1 -0.2% 0 0.0% 0 0.0%
Child function
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% 441 99.5% 425 98.4% 36,872 100.0% 62,864 100.6%