XHProf: Hierarchical Profiler Report

Diff Report: Run #52e49acfb0eb8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e49b394aea8: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #52e49acfb0eb8	Run #52e49b394aea8	Diff	Diff%
Number of Function Calls	149	153	4	2.7%
Incl. Wall Time (microsec)	39	39	0	0.0%
Incl. Wall Time (microsec) per call	0	0	-0	-2.6%
Excl. Wall Time (microsec)	39	39	0	0.0%
Incl. CPU (microsecs)	196	193	-3	-1.5%
Incl. CPU (microsecs) per call	1	1	-0	-4.1%
Excl. CPU (microsec)	196	193	-3	-1.5%
Incl. MemUse (bytes)	19,600	19,832	232	1.2%
Incl. MemUse (bytes) per call	132	130	-2	-1.5%
Excl. MemUse (bytes)	19,600	19,832	232	1.2%
Incl. PeakMemUse (bytes)	8,688	8,688	0	0.0%
Incl. PeakMemUse (bytes) per call	58	57	-2	-2.6%
Excl. PeakMemUse (bytes)	8,688	8,688	0	0.0%

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%	0	0.0%	-3	-0.4%	232	0.9%	0	0.0%
Exclusive Metrics Diff for Current Function			0	N/A%	-3	-100.0%	232	100.0%	0	N/A%
*Parent functions*
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	2	N/A%	-3	-100.0%	0	0.0%	0	N/A%
theme@2	0	0.0%	-2	N/A%	2	66.7%	0	0.0%	0	N/A%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	-1	N/A%	-2	-66.7%	0	0.0%	0	N/A%
Drupal\Core\ParamConverter\EntityConverter::convert	0	0.0%	1	N/A%	0	0.0%	0	0.0%	0	N/A%
theme	0	0.0%	1	N/A%	2	66.7%	0	0.0%	0	N/A%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	-1	N/A%	-11	-366.7%	0	0.0%	0	N/A%
Drupal\Core\Database\Connection::query	0	0.0%	0	N/A%	1	33.3%	0	0.0%	0	N/A%
theme@1	0	0.0%	0	N/A%	1	33.3%	0	0.0%	0	N/A%
Composer\Autoload\ClassLoader::findFile	0	0.0%	0	N/A%	1	33.3%	0	0.0%	0	N/A%
Drupal\system\Controller\SystemController::setLinkActiveClass	0	0.0%	0	N/A%	-1	-33.3%	0	0.0%	0	N/A%
Drupal\Component\Utility\Url::stripDangerousProtocols	0	0.0%	0	N/A%	-1	-33.3%	0	0.0%	0	N/A%
drupal_settings_initialize	0	0.0%	0	N/A%	-1	-33.3%	0	0.0%	0	N/A%
Drupal\Core\Config\Entity\Query\Query::execute	0	0.0%	0	N/A%	3	100.0%	0	0.0%	0	N/A%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	0	N/A%	2	66.7%	0	0.0%	0	N/A%
request_path	0	0.0%	0	N/A%	-1	-33.3%	0	0.0%	0	N/A%
Twig_Environment::getCacheFilename	4	100.0%	0	N/A%	4	133.3%	232	100.0%	0	N/A%
Drupal\Core\Entity\Query\QueryBase::getNamespaces	0	0.0%	0	N/A%	0	0.0%	0	0.0%	0	N/A%
Drupal\Core\Authentication\AuthenticationManager::addProvider	0	0.0%	0	N/A%	1	33.3%	0	0.0%	0	N/A%