XHProf: Hierarchical Profiler Report

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

Regression/Improvement summary for substr

substr	Run #52e6fcee66138	Run #52e6fc5cc809e	Diff	Diff%
Number of Function Calls	426	422	-4	-0.9%
Incl. Wall Time (microsec)	319	327	8	2.5%
Incl. Wall Time (microsec) per call	1	1	0	3.5%
Excl. Wall Time (microsec)	319	327	8	2.5%
Incl. CPU (microsecs)	605	617	12	2.0%
Incl. CPU (microsecs) per call	1	1	0	3.0%
Excl. CPU (microsec)	605	617	12	2.0%
Incl. MemUse (bytes)	32,176	31,944	-232	-0.7%
Incl. MemUse (bytes) per call	76	76	0	0.2%
Excl. MemUse (bytes)	32,176	31,944	-232	-0.7%
Incl. PeakMemUse (bytes)	3,888	4,480	592	15.2%
Incl. PeakMemUse (bytes) per call	9	11	1	16.3%
Excl. PeakMemUse (bytes)	3,888	4,480	592	15.2%

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%