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

class_existsRun #512a20b11c1abRun #512a1f7f217a6DiffDiff%
Number of Function Calls256 243 -13 -5.1%
Incl. Wall Time (microsec)13,338 8,038 -5,300 -39.7%
Incl. Wall Time (microsec) per call 52 33 -19 -36.5%
Excl. Wall Time (microsec)817 761 -56 -6.9%
Incl. CPU (microsecs)20,001 8,000 -12,001 -60.0%
Incl. CPU (microsecs) per call 78 33 -45 -57.9%
Excl. CPU (microsec)0 4,000 4,000 N/A%
Incl. MemUse (bytes)1,798,960 715,600 -1,083,360 -60.2%
Incl. MemUse (bytes) per call 7,027 2,945 -4,082 -58.1%
Excl. MemUse (bytes)-20,792 -13,144 7,648 36.8%
Incl. PeakMemUse (bytes)1,374,760 544,032 -830,728 -60.4%
Incl. PeakMemUse (bytes) per call 5,370 2,239 -3,131 -58.3%
Excl. PeakMemUse (bytes)7,392 7,592 200 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_exists-13 -54.2% -5,300 -15.9% -12,001 -37.5% -1,083,360 -32.6% -830,728 -24.4%
Exclusive Metrics Diff for Current Function-56 -1.1% 4,000 33.3% 7,648 0.7% 200 0.0%
Parent functions
Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass-12 -92.3% -5,053 -95.3% -12,001 -100.0% -1,018,232 -94.0% -758,168 -91.3%
Drupal\Core\Entity\EntityManager::getControllerClass-2 -15.4% -376 -7.1% 0 0.0% -66,280 -6.1% -74,680 -9.0%
Drupal\Core\Database\Query\Select::extend1 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::loadClass-11 -100.0% -5,244 -98.9% -16,001 -133.3% -1,091,008 -100.7% -830,928 -100.0%