Diff Report
Run #512a1f7f217a6: XHProf Run (Namespace=drupal-perf)
vs.
Run #512a20b11c1ab: XHProf Run (Namespace=drupal-perf)
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Regression/Improvement summary for class_exists

class_existsRun #512a1f7f217a6Run #512a20b11c1abDiffDiff%
Number of Function Calls243 256 13 5.3%
Incl. Wall Time (microsec)8,038 13,338 5,300 65.9%
Incl. Wall Time (microsec) per call 33 52 19 57.5%
Excl. Wall Time (microsec)761 817 56 7.4%
Incl. CPU (microsecs)8,000 20,001 12,001 150.0%
Incl. CPU (microsecs) per call 33 78 45 137.3%
Excl. CPU (microsec)4,000 0 -4,000 -100.0%
Incl. MemUse (bytes)715,600 1,798,960 1,083,360 151.4%
Incl. MemUse (bytes) per call 2,945 7,027 4,082 138.6%
Excl. MemUse (bytes)-13,144 -20,792 -7,648 -58.2%
Incl. PeakMemUse (bytes)544,032 1,374,760 830,728 152.7%
Incl. PeakMemUse (bytes) per call 2,239 5,370 3,131 139.9%
Excl. PeakMemUse (bytes)7,592 7,392 -200 -2.6%

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_exists13 54.2% 5,300 15.9% 12,001 37.5% 1,083,360 32.6% 830,728 24.4%
Exclusive Metrics Diff for Current Function56 1.1% -4,000 -33.3% -7,648 -0.7% -200 -0.0%
Parent functions
Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass12 92.3% 5,053 95.3% 12,001 100.0% 1,018,232 94.0% 758,168 91.3%
Drupal\Core\Entity\EntityManager::getControllerClass2 15.4% 376 7.1% 0 0.0% 66,280 6.1% 74,680 9.0%
Drupal\Core\Database\Query\Select::extend-1 -7.7% -154 -2.9% 0 0.0% -1,112 -0.1% -2,080 -0.3%
Drupal\Component\Datetime\DateTimePlus::canUseIntl0 0.0% 21 0.4% -4,000 -33.3% 0 0.0% 0 0.0%
Drupal\Core\Database\Connection::getDriverClass0 0.0% 4 0.1% 4,000 33.3% -40 -0.0% -40 -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%
Child function
Symfony\Component\ClassLoader\UniversalClassLoader::loadClass11 100.0% 5,244 98.9% 16,001 133.3% 1,091,008 100.7% 830,928 100.0%