XHProf: Hierarchical Profiler Report

Diff Report: Run #52a03729e7d1a: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #52a037bb4f6e8: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #52a03729e7d1a	Run #52a037bb4f6e8	Diff	Diff%
Number of Function Calls	1,373	1,377	4	0.3%
Incl. Wall Time (microsec)	610	631	21	3.4%
Incl. Wall Time (microsec) per call	0	0	0	3.1%
Excl. Wall Time (microsec)	610	631	21	3.4%
Incl. CPU (microsecs)	1,724	1,723	-1	-0.1%
Incl. CPU (microsecs) per call	1	1	-0	-0.3%
Excl. CPU (microsec)	1,724	1,723	-1	-0.1%
Incl. MemUse (bytes)	123,704	123,848	144	0.1%
Incl. MemUse (bytes) per call	90	90	-0	-0.2%
Excl. MemUse (bytes)	123,704	123,848	144	0.1%
Incl. PeakMemUse (bytes)	40,160	40,104	-56	-0.1%
Incl. PeakMemUse (bytes) per call	29	29	-0	-0.4%
Excl. PeakMemUse (bytes)	40,160	40,104	-56	-0.1%

Parent/Child Regression/Improvement report for substr [View Callgraph Diff]

Function Name	Calls Diff	Calls 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*
substr	4	100.0%	21	2.5%	-1	-0.1%	144	0.2%	-56	-0.1%
Exclusive Metrics Diff for Current Function			21	100.0%	-1	-100.0%	144	100.0%	-56	-100.0%
*Parent functions*
Composer\Autoload\ClassLoader::findFile	0	0.0%	7	33.3%	-24	-2400.0%	0	0.0%	-56	-100.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	5	23.8%	8	800.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	4	19.0%	1	100.0%	0	0.0%	0	0.0%
Twig_Environment::getCacheFilename	4	100.0%	3	14.3%	12	1200.0%	168	116.7%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	2	9.5%	-3	-300.0%	0	0.0%	0	0.0%
Composer\Autoload\ClassLoader::set	0	0.0%	-1	-4.8%	-3	-300.0%	0	0.0%	0	0.0%
Drupal\Core\Entity\FieldableDatabaseStorageController::mapFromStorageRecords	0	0.0%	-1	-4.8%	1	100.0%	0	0.0%	0	0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	1	4.8%	1	100.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	1	4.8%	3	300.0%	0	0.0%	0	0.0%
drupal_settings_initialize	0	0.0%	-1	-4.8%	-1	-100.0%	0	0.0%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider	0	0.0%	1	4.8%	1	100.0%	0	0.0%	0	0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces	0	0.0%	0	0.0%	4	400.0%	0	0.0%	0	0.0%
Drupal\Core\Entity\Query\Sql\Tables::addField	0	0.0%	0	0.0%	1	100.0%	0	0.0%	0	0.0%
theme@2	0	0.0%	0	0.0%	-4	-400.0%	-24	-16.7%	0	0.0%
theme@4	0	0.0%	0	0.0%	1	100.0%	0	0.0%	0	0.0%
request_path	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Routing\UrlGenerator::generateFromPath	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	0	0.0%	1	100.0%	0	0.0%	0	0.0%
devel_silent	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\views\Plugin\views\query\Sql::addField	0	0.0%	0	0.0%	2	200.0%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	0.0%	1	100.0%	0	0.0%	0	0.0%
Drupal\Component\Utility\Url::stripDangerousProtocols	0	0.0%	0	0.0%	-3	-300.0%	0	0.0%	0	0.0%