XHProf: Hierarchical Profiler Report

Diff Report: Run #5392041970f3f: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539201f8938f4: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Regression/Improvement summary for preg_replace

preg_replace	Run #5392041970f3f	Run #539201f8938f4	Diff	Diff%
Number of Function Calls	829	827	-2	-0.2%
Incl. Wall Time (microsec)	2,510	2,528	18	0.7%
Incl. Wall Time (microsec) per call	3	3	0	1.0%
Excl. Wall Time (microsec)	2,510	2,528	18	0.7%
Incl. CPU (microsecs)	3,261	3,246	-15	-0.5%
Incl. CPU (microsecs) per call	4	4	-0	-0.2%
Excl. CPU (microsec)	3,261	3,246	-15	-0.5%
Incl. MemUse (bytes)	98,428	98,188	-240	-0.2%
Incl. MemUse (bytes) per call	119	119	-0	-0.0%
Excl. MemUse (bytes)	98,428	98,188	-240	-0.2%
Incl. PeakMemUse (bytes)	39,848	39,856	8	0.0%
Incl. PeakMemUse (bytes) per call	48	48	0	0.3%
Excl. PeakMemUse (bytes)	39,848	39,856	8	0.0%

Parent/Child Regression/Improvement report for preg_replace [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*
preg_replace	-2	-100.0%	18	1.2%	-15	-0.6%	-240	-0.4%	8	0.0%
Exclusive Metrics Diff for Current Function			18	100.0%	-15	-100.0%	-240	-100.0%	8	100.0%
*Parent functions*
Drupal\Core\Database\Connection::escapeTable	0	0.0%	32	177.8%	28	186.7%	0	0.0%	8	100.0%
drupal_clean_css_identifier	0	0.0%	-14	-77.8%	-7	-46.7%	-36	-15.0%	0	0.0%
Drupal\Core\Database\Connection::escapeField	0	0.0%	-12	-66.7%	-15	-100.0%	0	0.0%	0	0.0%
Drupal\Core\Database\Connection::expandArguments	0	0.0%	10	55.6%	6	40.0%	0	0.0%	0	0.0%
__TwigTemplate_18632083caa399d2e77339d322a39a9ee6fb035f326d8cbd4b48b564aca7af78::doDisplay	0	0.0%	-9	-50.0%	-7	-46.7%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteCompiler::getPatternOutline	0	0.0%	8	44.4%	4	26.7%	0	0.0%	0	0.0%
drupal_clean_id_identifier	0	0.0%	6	33.3%	8	53.3%	0	0.0%	0	0.0%
Drupal\Component\Utility\Xss::filter	0	0.0%	4	22.2%	-8	-53.3%	0	0.0%	0	0.0%
Twig_Loader_Filesystem::findTemplate	-2	-100.0%	-3	-16.7%	-6	-40.0%	-204	-85.0%	0	0.0%
Drupal\Core\Routing\UrlGenerator::getPathFromRoute	0	0.0%	-2	-11.1%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Datetime\DrupalDateTime::format	0	0.0%	2	11.1%	1	6.7%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::getHost	0	0.0%	-2	-11.1%	-3	-20.0%	0	0.0%	0	0.0%
Drupal\Core\Database\Connection::escapeAlias	0	0.0%	-1	-5.6%	-14	-93.3%	0	0.0%	0	0.0%
Drupal\Component\Utility\Xss::attributes	0	0.0%	-1	-5.6%	2	13.3%	0	0.0%	0	0.0%
Symfony\Component\Routing\RouteCompiler::findNextSeparator	0	0.0%	0	0.0%	-1	-6.7%	0	0.0%	0	0.0%
Drupal\Component\Utility\Xss::split	0	0.0%	0	0.0%	-3	-20.0%	0	0.0%	0	0.0%