Diff Report
Run #51990ceb6ce00: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51990c6b6ce43: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for class_exists

class_existsRun #51990ceb6ce00Run #51990c6b6ce43DiffDiff%
Number of Function Calls114 113 -1 -0.9%
Incl. Wall Time (microsec)12,382 12,216 -166 -1.3%
Incl. Wall Time (microsec) per call 109 108 -1 -0.5%
Excl. Wall Time (microsec)511 487 -24 -4.7%
Incl. CPU (microsecs)12,500 12,334 -166 -1.3%
Incl. CPU (microsecs) per call 110 109 -0 -0.5%
Excl. CPU (microsec)543 502 -41 -7.6%
Incl. MemUse (bytes)1,683,848 1,683,880 32 0.0%
Incl. MemUse (bytes) per call 14,771 14,902 131 0.9%
Excl. MemUse (bytes)-5,560 -5,560 0 0.0%
Incl. PeakMemUse (bytes)1,081,800 1,104,496 22,696 2.1%
Incl. PeakMemUse (bytes) per call 9,489 9,774 285 3.0%
Excl. PeakMemUse (bytes)7,408 7,520 112 1.5%

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% -166 -36.9% -166 -13.5% 32 0.1% 22,696 78.2%
Exclusive Metrics Diff for Current Function-24 -14.5% -41 -24.7% 0 0.0% 112 0.5%
Parent functions
Drupal\Component\Datetime\DateTimePlus::canUseIntl0 0.0% -78 -47.0% -71 -42.8% 0 0.0% 0 0.0%
Drupal\Core\Entity\EntityManager::getControllerClass0 0.0% -38 -22.9% -40 -24.1% 8 25.0% -40 -0.2%
Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass0 0.0% -33 -19.9% -37 -22.3% 24 75.0% 22,736 100.2%
Drupal\Core\Database\Connection::getDriverClass0 0.0% -12 -7.2% -12 -7.2% 0 0.0% 0 0.0%
file_stream_wrapper_valid_scheme0 0.0% -4 -2.4% -4 -2.4% 0 0.0% 0 0.0%
file_stream_wrapper_get_instance_by_uri0 0.0% -1 -0.6% -1 -0.6% 0 0.0% 0 0.0%
Drupal\Core\Template\TwigEnvironment::loadTemplate-1 -100.0% -1 -0.6% -3 -1.8% 0 0.0% 0 0.0%
Drupal\Core\Config\Context\ConfigContextFactory::get0 0.0% 1 0.6% 2 1.2% 0 0.0% 0 0.0%
Drupal\Core\DrupalKernel::initializeContainer0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
_drupal_simpletest_conf_path0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Child functions
Symfony\Component\ClassLoader\ClassLoader::loadClass0 N/A% -77 -46.4% -65 -39.2% 0 0.0% 0 0.0%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% -65 -39.2% -60 -36.1% 32 100.0% 22,584 99.5%