XHProf: Hierarchical Profiler Report

Diff Report: Run #52e6fc5cc809e: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #52e6fcee66138: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #52e6fc5cc809e	Run #52e6fcee66138	Diff	Diff%
Number of Function Calls	422	426	4	0.9%
Incl. Wall Time (microsec)	327	319	-8	-2.4%
Incl. Wall Time (microsec) per call	1	1	-0	-3.4%
Excl. Wall Time (microsec)	327	319	-8	-2.4%
Incl. CPU (microsecs)	617	605	-12	-1.9%
Incl. CPU (microsecs) per call	1	1	-0	-2.9%
Excl. CPU (microsec)	617	605	-12	-1.9%
Incl. MemUse (bytes)	31,944	32,176	232	0.7%
Incl. MemUse (bytes) per call	76	76	-0	-0.2%
Excl. MemUse (bytes)	31,944	32,176	232	0.7%
Incl. PeakMemUse (bytes)	4,480	3,888	-592	-13.2%
Incl. PeakMemUse (bytes) per call	11	9	-1	-14.0%
Excl. PeakMemUse (bytes)	4,480	3,888	-592	-13.2%

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%	-8	-0.3%	-12	-0.5%	232	0.3%	-592	-0.7%
Exclusive Metrics Diff for Current Function			-8	-100.0%	-12	-100.0%	232	100.0%	-592	-100.0%
*Parent functions*
Drupal\Core\Config\Entity\Query\Query::execute	0	0.0%	-10	-125.0%	4	33.3%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	7	87.5%	9	75.0%	0	0.0%	0	0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	4	50.0%	2	16.7%	0	0.0%	0	0.0%
theme	0	0.0%	-3	-37.5%	-4	-33.3%	0	0.0%	0	0.0%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate	0	0.0%	-3	-37.5%	-1	-8.3%	0	0.0%	0	0.0%
Drupal\Core\Routing\UrlGenerator::generateFromPath	0	0.0%	-3	-37.5%	-6	-50.0%	0	0.0%	0	0.0%
Composer\Autoload\ClassLoader::findFile	0	0.0%	1	12.5%	1	8.3%	0	0.0%	0	0.0%
Twig_Environment::getCacheFilename	4	100.0%	-1	-12.5%	1	8.3%	232	100.0%	0	0.0%
Drupal\Component\Utility\Url::stripDangerousProtocols	0	0.0%	-1	-12.5%	-5	-41.7%	0	0.0%	0	0.0%
theme@2	0	0.0%	1	12.5%	1	8.3%	0	0.0%	-592	-100.0%
Drupal\system\Controller\SystemController::setLinkActiveClass	0	0.0%	0	0.0%	1	8.3%	0	0.0%	0	0.0%
Drupal\Core\Database\Connection::query	0	0.0%	0	0.0%	-6	-50.0%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	0.0%	1	8.3%	0	0.0%	0	0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	0	0.0%	3	25.0%	0	0.0%	0	0.0%
drupal_settings_initialize	0	0.0%	0	0.0%	-1	-8.3%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	0	0.0%	-12	-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\Core\ParamConverter\EntityConverter::convert	0	0.0%	0	0.0%	-1	-8.3%	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\Entity\Query\Sql\Tables::addField	0	0.0%	0	0.0%	1	8.3%	0	0.0%	0	0.0%