Diff Report
Run #519eb7a1537f7: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eb880e5974: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for class_exists

class_existsRun #519eb7a1537f7Run #519eb880e5974DiffDiff%
Number of Function Calls265 273 8 3.0%
Incl. Wall Time (microsec)45,720 44,213 -1,507 -3.3%
Incl. Wall Time (microsec) per call 173 162 -11 -6.1%
Excl. Wall Time (microsec)1,178 1,127 -51 -4.3%
Incl. CPU (microsecs)45,990 44,529 -1,461 -3.2%
Incl. CPU (microsecs) per call 174 163 -10 -6.0%
Excl. CPU (microsec)1,338 1,316 -22 -1.6%
Incl. MemUse (bytes)1,201,392 1,209,584 8,192 0.7%
Incl. MemUse (bytes) per call 4,534 4,431 -103 -2.3%
Excl. MemUse (bytes)-8,444 -8,444 0 0.0%
Incl. PeakMemUse (bytes)953,828 984,112 30,284 3.2%
Incl. PeakMemUse (bytes) per call 3,599 3,605 5 0.2%
Excl. PeakMemUse (bytes)5,168 5,620 452 8.7%

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_exists8 100.0% -1,507 -42.0% -1,461 -1418.4% 8,192 3.5% 30,284 19.4%
Exclusive Metrics Diff for Current Function-51 -3.4% -22 -1.5% 0 0.0% 452 1.5%
Parent functions
Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass0 0.0% -1,556 -103.3% -1,533 -104.9% 8,192 100.0% 17,480 57.7%
Drupal\Core\Entity\EntityManager::getControllerClass0 0.0% 40 2.7% 31 2.1% -4 -0.0% 12,880 42.5%
Drupal\Core\Database\Connection::getDriverClass0 0.0% 23 1.5% 22 1.5% 4 0.0% -76 -0.3%
Drupal\Component\Datetime\DateTimePlus::canUseIntl0 0.0% -18 -1.2% -11 -0.8% 0 0.0% 0 0.0%
Drupal\Core\Template\TwigEnvironment::loadTemplate8 100.0% 16 1.1% 26 1.8% 0 0.0% 0 0.0%
file_stream_wrapper_get_instance_by_uri0 0.0% -10 -0.7% 8 0.5% 0 0.0% 0 0.0%
file_stream_wrapper_valid_scheme0 0.0% -1 -0.1% -2 -0.1% 0 0.0% 0 0.0%
Drupal\Core\Config\Context\ConfigContextFactory::get0 0.0% -1 -0.1% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\DrupalKernel::initializeContainer0 0.0% 0 0.0% -2 -0.1% 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 function
Symfony\Component\ClassLoader\ClassLoader::loadClass0 N/A% -1,456 -96.6% -1,439 -98.5% 8,192 100.0% 29,832 98.5%