XHProf: Hierarchical Profiler Report

Diff Report: Run #54df8f50b2e01: XHProf Run (Namespace=drupal-perf-davidhernandez)
vs.
Run #54df8d322535a: XHProf Run (Namespace=drupal-perf-davidhernandez)
Tip: Click a function name below to drill down.

preg_replace	Run #54df8f50b2e01	Run #54df8d322535a	Diff	Diff%
Number of Function Calls	4,668	4,665	-3	-0.1%
Incl. Wall Time (microsec)	5,271	5,388	117	2.2%
Incl. Wall Time (microsec) per call	1	1	0	2.3%
Excl. Wall Time (microsec)	5,271	5,388	117	2.2%
Incl. MemUse (bytes)	533,064	533,472	408	0.1%
Incl. MemUse (bytes) per call	114	114	0	0.1%
Excl. MemUse (bytes)	533,064	533,472	408	0.1%
Incl. PeakMemUse (bytes)	19,432	19,984	552	2.8%
Incl. PeakMemUse (bytes) per call	4	4	0	2.9%
Excl. PeakMemUse (bytes)	19,432	19,984	552	2.8%

Function Name	Calls Diff	Calls Diff%	Incl. Wall Diff (microsec)	IWall Diff%	Incl. MemUse Diff (bytes)	IMemUse Diff%	Incl. PeakMemUse Diff (bytes)	IPeakMemUse Diff%
*Current Function*
preg_replace	-3	-100.0%	117	1.8%	408	0.0%	552	0.0%
Exclusive Metrics Diff for Current Function			117	100.0%	408	100.0%	552	100.0%
*Parent functions*
Drupal\Component\Utility\Html::cleanCssIdentifier	0	0.0%	105	89.7%	768	188.2%	0	0.0%
Twig_Loader_Filesystem::normalizeName	-3	-100.0%	8	6.8%	-408	-100.0%	352	63.8%
Symfony\Component\HttpFoundation\Request::getHost	0	0.0%	-5	-4.3%	0	0.0%	32	5.8%
Drupal\Component\Utility\Tags::explode	0	0.0%	4	3.4%	64	15.7%	320	58.0%
Drupal\Core\Database\Connection::escapeField	0	0.0%	4	3.4%	0	0.0%	96	17.4%
Drupal\Core\Database\Connection::escapeTable	0	0.0%	-4	-3.4%	0	0.0%	-168	-30.4%
Drupal\Component\Utility\Html::getId	0	0.0%	3	2.6%	0	0.0%	0	0.0%
Drupal\Component\Utility\Xss::filter	0	0.0%	1	0.9%	0	0.0%	-320	-58.0%
Drupal\Core\Database\Connection::escapeAlias	0	0.0%	1	0.9%	0	0.0%	240	43.5%
Drupal\Core\Routing\UrlGenerator::getPathFromRoute	0	0.0%	0	0.0%	-16	-3.9%	0	0.0%
Drupal\Core\Routing\RouteCompiler::getPatternOutline	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Session\SessionConfiguration::getUnprefixedName	0	0.0%	0	0.0%	0	0.0%	0	0.0%