XHProf: Hierarchical Profiler Report

Diff Report: Run #52e49caf3c7f2: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #52e49d73f02cb: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #52e49caf3c7f2	Run #52e49d73f02cb	Diff	Diff%
Number of Function Calls	412	416	4	1.0%
Incl. Wall Time (microsec)	351	322	-29	-8.3%
Incl. Wall Time (microsec) per call	1	1	-0	-9.1%
Excl. Wall Time (microsec)	351	322	-29	-8.3%
Incl. CPU (microsecs)	605	587	-18	-3.0%
Incl. CPU (microsecs) per call	1	1	-0	-3.9%
Excl. CPU (microsec)	605	587	-18	-3.0%
Incl. MemUse (bytes)	30,064	30,264	200	0.7%
Incl. MemUse (bytes) per call	73	73	-0	-0.3%
Excl. MemUse (bytes)	30,064	30,264	200	0.7%
Incl. PeakMemUse (bytes)	4,040	3,904	-136	-3.4%
Incl. PeakMemUse (bytes) per call	10	9	-0	-4.3%
Excl. PeakMemUse (bytes)	4,040	3,904	-136	-3.4%

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%	-29	-1.2%	-18	-0.9%	200	0.3%	-136	-0.2%
Exclusive Metrics Diff for Current Function			-29	-100.0%	-18	-100.0%	200	100.0%	-136	-100.0%
*Parent functions*
Twig_Environment::getCacheFilename	4	100.0%	-9	-31.0%	-10	-55.6%	232	116.0%	-136	-100.0%
Drupal\Core\ParamConverter\EntityConverter::convert	0	0.0%	0	0.0%	-1	-5.6%	0	0.0%	0	0.0%
Drupal\Core\Config\Entity\Query\Query::execute	0	0.0%	2	6.9%	0	0.0%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Database\Connection::query	0	0.0%	0	0.0%	3	16.7%	0	0.0%	0	0.0%
Drupal\Component\Utility\Url::stripDangerousProtocols	0	0.0%	0	0.0%	1	5.6%	0	0.0%	0	0.0%
Drupal\system\Controller\SystemController::setLinkActiveClass	0	0.0%	0	0.0%	-2	-11.1%	0	0.0%	0	0.0%
theme@2	0	0.0%	0	0.0%	1	5.6%	0	0.0%	0	0.0%
Drupal\Core\Entity\Query\Sql\Tables::addField	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces	0	0.0%	0	0.0%	-1	-5.6%	-24	-12.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	0	0.0%	-3	-16.7%	0	0.0%	0	0.0%
drupal_settings_initialize	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Composer\Autoload\ClassLoader::findFile	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%	2	11.1%	0	0.0%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider	0	0.0%	0	0.0%	-1	-5.6%	-8	-4.0%	0	0.0%
Guzzle\Http\Client::initSsl	0	0.0%	1	3.4%	-2	-11.1%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	3	10.3%	-8	-44.4%	0	0.0%	0	0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	-26	-89.7%	4	22.2%	0	0.0%	0	0.0%
request_path	0	0.0%	0	0.0%	-1	-5.6%	0	0.0%	0	0.0%