Diff Report
Run #539206aca7ae8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539205a48c548: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for class_exists

class_existsRun #539206aca7ae8Run #539205a48c548DiffDiff%
Number of Function Calls397 393 -4 -1.0%
Incl. Wall Time (microsec)11,535 11,597 62 0.5%
Incl. Wall Time (microsec) per call 29 30 0 1.6%
Excl. Wall Time (microsec)914 917 3 0.3%
Incl. CPU (microsecs)11,961 12,032 71 0.6%
Incl. CPU (microsecs) per call 30 31 0 1.6%
Excl. CPU (microsec)1,291 1,300 9 0.7%
Incl. MemUse (bytes)1,568,408 1,568,352 -56 -0.0%
Incl. MemUse (bytes) per call 3,951 3,991 40 1.0%
Excl. MemUse (bytes)-7,936 -7,936 0 0.0%
Incl. PeakMemUse (bytes)1,306,388 1,303,600 -2,788 -0.2%
Incl. PeakMemUse (bytes) per call 3,291 3,317 26 0.8%
Excl. PeakMemUse (bytes)7,892 7,844 -48 -0.6%

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-4 -100.0% 62 1.3% 71 1.9% -56 -0.1% -2,788 -2.9%
Exclusive Metrics Diff for Current Function3 4.8% 9 12.7% 0 0.0% -48 -1.7%
Parent functions
Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass0 0.0% 63 101.6% 66 93.0% -72 -128.6% 11,156 400.1%
Drupal\Core\Database\Connection::getDriverClass0 0.0% 43 69.4% 42 59.2% -8 -14.3% -13,692 -491.1%
Drupal\Core\Entity\EntityManager::getDefinition0 0.0% -34 -54.8% -24 -33.8% 0 0.0% -40 -1.4%
Drupal\Core\Template\TwigEnvironment::loadTemplate-4 -100.0% -18 -29.0% -23 -32.4% 0 0.0% 0 0.0%
Drupal\Core\Form\FormBuilder::getFormId0 0.0% 18 29.0% 17 23.9% 0 0.0% 0 0.0%
Drupal\Core\Entity\EntityType::hasControllerClass0 0.0% -16 -25.8% -10 -14.1% -4 -7.1% -236 -8.5%
Drupal\Core\Entity\Query\QueryBase::getClass0 0.0% 3 4.8% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\DependencyInjection\ClassResolver::getInstanceFromDefinition0 0.0% 2 3.2% 3 4.2% 28 50.0% 24 0.9%
file_stream_wrapper_get_instance_by_uri0 0.0% 1 1.6% -2 -2.8% 0 0.0% 0 0.0%
Drupal\Core\DrupalKernel::initializeContainer0 0.0% 0 0.0% 1 1.4% 0 0.0% 0 0.0%
file_stream_wrapper_get_instance_by_scheme0 0.0% 0 0.0% 1 1.4% 0 0.0% 0 0.0%
Child function
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% 59 95.2% 62 87.3% -56 -100.0% -2,740 -98.3%