XHProf: Hierarchical Profiler Report

Diff Report: Run #52c8629919553: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52c862ea26981: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #52c8629919553	Run #52c862ea26981	Diff	Diff%
Number of Function Calls	1,313	1,317	4	0.3%
Incl. Wall Time (microsec)	18	56	38	211.1%
Incl. Wall Time (microsec) per call	0	0	0	210.2%
Excl. Wall Time (microsec)	18	56	38	211.1%
Incl. CPU (microsecs)	1,330	1,331	1	0.1%
Incl. CPU (microsecs) per call	1	1	-0	-0.2%
Excl. CPU (microsec)	1,330	1,331	1	0.1%
Incl. MemUse (bytes)	72,272	72,440	168	0.2%
Incl. MemUse (bytes) per call	55	55	-0	-0.1%
Excl. MemUse (bytes)	72,272	72,440	168	0.2%
Incl. PeakMemUse (bytes)	17,544	17,512	-32	-0.2%
Incl. PeakMemUse (bytes) per call	13	13	-0	-0.5%
Excl. PeakMemUse (bytes)	17,544	17,512	-32	-0.2%

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%	38	59.4%	1	0.6%	168	0.6%	-32	-0.1%
Exclusive Metrics Diff for Current Function			38	100.0%	1	100.0%	168	100.0%	-32	-100.0%
*Parent functions*
Twig_Environment::getCacheFilename	4	100.0%	0	0.0%	2	200.0%	168	100.0%	0	0.0%
Drupal\Component\Utility\Url::stripDangerousProtocols	0	0.0%	1	2.6%	-1	-100.0%	0	0.0%	0	0.0%
Drupal\Core\Routing\UrlGenerator::generateFromPath	0	0.0%	0	0.0%	-1	-100.0%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	0.0%	-7	-700.0%	0	0.0%	0	0.0%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate	0	0.0%	0	0.0%	-1	-100.0%	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%
theme@2	0	0.0%	0	0.0%	2	200.0%	0	0.0%	0	0.0%
Drupal\Core\Entity\Query\Sql\Tables::addField	0	0.0%	1	2.6%	3	300.0%	0	0.0%	0	0.0%
Drupal\Core\Config\Entity\Query\Query::execute	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\views\Plugin\views\query\Sql::addField	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	1	2.6%	3	300.0%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Composer\Autoload\ClassLoader::findFile	0	0.0%	6	15.8%	-23	-2300.0%	0	0.0%	0	0.0%
drupal_settings_initialize	0	0.0%	0	0.0%	3	300.0%	0	0.0%	-32	-100.0%
request_path	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	0	0.0%	2	200.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	0	0.0%	1	100.0%	0	0.0%	0	0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	0	0.0%	-3	-300.0%	0	0.0%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider	0	0.0%	0	0.0%	1	100.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	-1	-2.6%	-1	-100.0%	0	0.0%	0	0.0%
Composer\Autoload\ClassLoader::set	0	0.0%	30	78.9%	21	2100.0%	0	0.0%	0	0.0%