XHProf: Hierarchical Profiler Report

Diff Report: Run #52f5cbc19a0d8: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5cb0964fa0: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #52f5cbc19a0d8	Run #52f5cb0964fa0	Diff	Diff%
Number of Function Calls	334	330	-4	-1.2%
Incl. Wall Time (microsec)	83	83	0	0.0%
Incl. Wall Time (microsec) per call	0	0	0	1.2%
Excl. Wall Time (microsec)	83	83	0	0.0%
Incl. CPU (microsecs)	363	386	23	6.3%
Incl. CPU (microsecs) per call	1	1	0	7.6%
Excl. CPU (microsec)	363	386	23	6.3%
Incl. MemUse (bytes)	111,808	111,416	-392	-0.4%
Incl. MemUse (bytes) per call	335	338	3	0.9%
Excl. MemUse (bytes)	111,808	111,416	-392	-0.4%
Incl. PeakMemUse (bytes)	74,264	73,920	-344	-0.5%
Incl. PeakMemUse (bytes) per call	222	224	2	0.7%
Excl. PeakMemUse (bytes)	74,264	73,920	-344	-0.5%

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%	0	0.0%	23	11.8%	-392	-1.3%	-344	-1.2%
Exclusive Metrics Diff for Current Function			0	N/A%	23	100.0%	-392	-100.0%	-344	-100.0%
*Parent functions*
theme@2	0	0.0%	2	N/A%	0	0.0%	0	0.0%	0	0.0%
Drupal\system\Controller\SystemController::setLinkActiveClass	0	0.0%	2	N/A%	-1	-4.3%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	-2	N/A%	-7	-30.4%	-160	-40.8%	-344	-100.0%
text_summary	0	0.0%	-2	N/A%	-2	-8.7%	0	0.0%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	1	N/A%	17	73.9%	0	0.0%	0	0.0%
request_path	0	0.0%	-1	N/A%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate	0	0.0%	-1	N/A%	1	4.3%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	1	N/A%	2	8.7%	0	0.0%	0	0.0%
Twig_Environment::getCacheFilename	-4	-100.0%	-1	N/A%	8	34.8%	-232	-59.2%	0	0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	1	N/A%	-3	-13.0%	0	0.0%	0	0.0%
Drupal\Core\ParamConverter\EntityConverter::convert	0	0.0%	0	N/A%	1	4.3%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	N/A%	2	8.7%	0	0.0%	0	0.0%
Drupal\Component\Utility\Url::stripDangerousProtocols	0	0.0%	0	N/A%	-1	-4.3%	0	0.0%	0	0.0%
Drupal\Core\Config\Entity\Query\Query::execute	0	0.0%	0	N/A%	-1	-4.3%	0	0.0%	0	0.0%
Composer\Autoload\ClassLoader::findFile	0	0.0%	0	N/A%	2	8.7%	0	0.0%	0	0.0%
theme@3	0	0.0%	0	N/A%	3	13.0%	0	0.0%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider	0	0.0%	0	N/A%	2	8.7%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	0	N/A%	1	4.3%	0	0.0%	0	0.0%
drupal_settings_initialize	0	0.0%	0	N/A%	-1	-4.3%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	0	N/A%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces	0	0.0%	0	N/A%	0	0.0%	0	0.0%	0	0.0%