XHProf: Hierarchical Profiler Report

Diff Report: Run #5204425923c81: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5204417bc7ab7: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #5204425923c81	Run #5204417bc7ab7	Diff	Diff%
Number of Function Calls	361	357	-4	-1.1%
Incl. Wall Time (microsec)	113	107	-6	-5.3%
Incl. Wall Time (microsec) per call	0	0	-0	-4.2%
Excl. Wall Time (microsec)	113	107	-6	-5.3%
Incl. CPU (microsecs)	462	443	-19	-4.1%
Incl. CPU (microsecs) per call	1	1	-0	-3.0%
Excl. CPU (microsec)	462	443	-19	-4.1%
Incl. MemUse (bytes)	36,440	36,248	-192	-0.5%
Incl. MemUse (bytes) per call	101	102	1	0.6%
Excl. MemUse (bytes)	36,440	36,248	-192	-0.5%
Incl. PeakMemUse (bytes)	12,848	12,824	-24	-0.2%
Incl. PeakMemUse (bytes) per call	36	36	0	0.9%
Excl. PeakMemUse (bytes)	12,848	12,824	-24	-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%	-6	-7.6%	-19	-2.4%	-192	-0.4%	-24	-0.1%
Exclusive Metrics Diff for Current Function			-6	-100.0%	-19	-100.0%	-192	-100.0%	-24	-100.0%
*Parent functions*
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	-2	-33.3%	-12	-63.2%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	-2	-33.3%	5	26.3%	0	0.0%	0	0.0%
Doctrine\Common\Annotations\DocLexer::getType	0	0.0%	-1	-16.7%	-6	-31.6%	0	0.0%	0	0.0%
drupal_settings_initialize	0	0.0%	1	16.7%	-2	-10.5%	0	0.0%	0	0.0%
Twig_Environment::getCacheFilename	-4	-100.0%	-1	-16.7%	0	0.0%	-168	-87.5%	0	0.0%
Drupal\Component\Utility\Url::stripDangerousProtocols	0	0.0%	-1	-16.7%	-1	-5.3%	0	0.0%	0	0.0%
theme@2	0	0.0%	1	16.7%	0	0.0%	0	0.0%	0	0.0%
theme@4	0	0.0%	-1	-16.7%	-4	-21.1%	0	0.0%	0	0.0%
Doctrine\Common\Annotations\DocParser::parse@1	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	0.0%	1	5.3%	0	0.0%	0	0.0%
Doctrine\Common\Annotations\DocParser::parse	0	0.0%	0	0.0%	1	5.3%	0	0.0%	0	0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::build	0	0.0%	0	0.0%	1	5.3%	-24	-12.5%	-24	-100.0%
Drupal\Core\Routing\UrlGenerator::generateFromPath	0	0.0%	0	0.0%	-4	-21.1%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	0	0.0%	1	5.3%	0	0.0%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	0	0.0%	1	5.3%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	0	0.0%	-1	-5.3%	0	0.0%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider	0	0.0%	0	0.0%	-3	-15.8%	0	0.0%	0	0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	0	0.0%	6	31.6%	0	0.0%	0	0.0%
request_path	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%	-1	-5.3%	0	0.0%	0	0.0%
Doctrine\Common\Reflection\StaticReflectionParser::__construct	0	0.0%	0	0.0%	-1	-5.3%	0	0.0%	0	0.0%