Diff Report
Run #512a40915a5dd: XHProf Run (Namespace=drupal-perf)
vs.
Run #512a40ad78082: XHProf Run (Namespace=drupal-perf)
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Regression/Improvement summary for class_exists

class_existsRun #512a40915a5ddRun #512a40ad78082DiffDiff%
Number of Function Calls243 256 13 5.3%
Incl. Wall Time (microsec)3,623 5,313 1,690 46.6%
Incl. Wall Time (microsec) per call 15 21 6 39.2%
Excl. Wall Time (microsec)786 847 61 7.8%
Incl. CPU (microsecs)8,000 4,000 -4,000 -50.0%
Incl. CPU (microsecs) per call 33 16 -17 -52.5%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)717,600 1,799,536 1,081,936 150.8%
Incl. MemUse (bytes) per call 2,953 7,029 4,076 138.0%
Excl. MemUse (bytes)-13,144 -20,760 -7,616 -57.9%
Incl. PeakMemUse (bytes)543,528 1,367,368 823,840 151.6%
Incl. PeakMemUse (bytes) per call 2,237 5,341 3,105 138.8%
Excl. PeakMemUse (bytes)7,464 7,264 -200 -2.7%

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_exists13 54.2% 1,690 5.9% -4,000 -14.3% 1,081,936 32.5% 823,840 24.2%
Exclusive Metrics Diff for Current Function61 3.6% 0 0.0% -7,616 -0.7% -200 -0.0%
Parent functions
Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass12 92.3% 1,596 94.4% 0 0.0% 1,017,928 94.1% 757,464 91.9%
Drupal\Core\Entity\EntityManager::getControllerClass2 15.4% 100 5.9% 0 0.0% 65,112 6.0% 67,432 8.2%
Drupal\Core\Database\Query\Select::extend-1 -7.7% -13 -0.8% 0 0.0% -1,112 -0.1% -960 -0.1%
Drupal\Component\Datetime\DateTimePlus::canUseIntl0 0.0% 7 0.4% 0 0.0% 0 0.0% 0 0.0%
file_stream_wrapper_get_instance_by_uri0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\DrupalKernel::initializeContainer0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
drupal_classloader0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\Database\Connection::getDriverClass0 0.0% 0 0.0% -4,000 -100.0% 8 0.0% -96 -0.0%
Child function
Symfony\Component\ClassLoader\UniversalClassLoader::loadClass11 100.0% 1,629 96.4% -4,000 -100.0% 1,089,552 100.7% 824,040 100.0%