XHProf: Hierarchical Profiler Report

Diff Report: Run #530ad1a439784: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #530ad2358a7c5: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #530ad1a439784	Run #530ad2358a7c5	Diff	Diff%
Number of Function Calls	1,487	1,491	4	0.3%
Incl. Wall Time (microsec)	864	853	-11	-1.3%
Incl. Wall Time (microsec) per call	1	1	-0	-1.5%
Excl. Wall Time (microsec)	864	853	-11	-1.3%
Incl. CPU (microsecs)	1,930	2,000	70	3.6%
Incl. CPU (microsecs) per call	1	1	0	3.3%
Excl. CPU (microsec)	1,930	2,000	70	3.6%
Incl. MemUse (bytes)	88,544	88,824	280	0.3%
Incl. MemUse (bytes) per call	60	60	0	0.0%
Excl. MemUse (bytes)	88,544	88,824	280	0.3%
Incl. PeakMemUse (bytes)	9,920	9,616	-304	-3.1%
Incl. PeakMemUse (bytes) per call	7	6	-0	-3.3%
Excl. PeakMemUse (bytes)	9,920	9,616	-304	-3.1%

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%	-11	-1.5%	70	28.9%	280	0.9%	-304	-0.8%
Exclusive Metrics Diff for Current Function			-11	-100.0%	70	100.0%	280	100.0%	-304	-100.0%
*Parent functions*
Composer\Autoload\ClassLoader::findFile	0	0.0%	-8	-72.7%	50	71.4%	0	0.0%	-24	-7.9%
Twig_Environment::getCacheFilename	4	100.0%	-3	-27.3%	-4	-5.7%	232	82.9%	-136	-44.7%
_theme	0	0.0%	3	27.3%	7	10.0%	0	0.0%	-144	-47.4%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	-2	-18.2%	10	14.3%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	-2	-18.2%	-3	-4.3%	0	0.0%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	2	18.2%	7	10.0%	0	0.0%	0	0.0%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate	0	0.0%	1	9.1%	-2	-2.9%	0	0.0%	0	0.0%
Drupal\Core\Routing\UrlGenerator::processPath	0	0.0%	-1	-9.1%	-2	-2.9%	24	8.6%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	-1	-9.1%	1	1.4%	0	0.0%	0	0.0%
Drupal\Component\Utility\Url::stripDangerousProtocols	0	0.0%	0	0.0%	5	7.1%	0	0.0%	0	0.0%
_theme@2	0	0.0%	0	0.0%	-1	-1.4%	0	0.0%	0	0.0%
_theme@1	0	0.0%	0	0.0%	4	5.7%	0	0.0%	0	0.0%
Drupal\Core\Entity\Query\Sql\Tables::addField	0	0.0%	0	0.0%	-1	-1.4%	0	0.0%	0	0.0%
Drupal\Core\Config\Entity\Query\Query::loadRecords	0	0.0%	0	0.0%	-5	-7.1%	0	0.0%	0	0.0%
Drupal\Component\Utility\Xss::split	0	0.0%	0	0.0%	-1	-1.4%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	0	0.0%	0	0.0%	24	8.6%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider	0	0.0%	0	0.0%	1	1.4%	0	0.0%	0	0.0%
_drupal_request_initialize	0	0.0%	0	0.0%	1	1.4%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	0	0.0%	3	4.3%	0	0.0%	0	0.0%
Drupal\Core\ParamConverter\EntityConverter::convert	0	0.0%	0	0.0%	1	1.4%	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%
request_path	0	0.0%	0	0.0%	-1	-1.4%	0	0.0%	0	0.0%