XHProf: Hierarchical Profiler Report

Diff Report: Run #51fdbdbb58abc: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51fdbca2b5409: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #51fdbdbb58abc	Run #51fdbca2b5409	Diff	Diff%
Number of Function Calls	278	274	-4	-1.4%
Incl. Wall Time (microsec)	91	80	-11	-12.1%
Incl. Wall Time (microsec) per call	0	0	-0	-10.8%
Excl. Wall Time (microsec)	91	80	-11	-12.1%
Incl. CPU (microsecs)	359	333	-26	-7.2%
Incl. CPU (microsecs) per call	1	1	-0	-5.9%
Excl. CPU (microsec)	359	333	-26	-7.2%
Incl. MemUse (bytes)	32,512	32,344	-168	-0.5%
Incl. MemUse (bytes) per call	117	118	1	0.9%
Excl. MemUse (bytes)	32,512	32,344	-168	-0.5%
Incl. PeakMemUse (bytes)	11,920	11,832	-88	-0.7%
Incl. PeakMemUse (bytes) per call	43	43	0	0.7%
Excl. PeakMemUse (bytes)	11,920	11,832	-88	-0.7%

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	-1.2%	-26	-36.1%	-168	-0.6%	-88	-0.3%
Exclusive Metrics Diff for Current Function			-11	-100.0%	-26	-100.0%	-168	-100.0%	-88	-100.0%
*Parent functions*
Drupal\Component\Utility\Xss::split	0	0.0%	-6	-54.5%	-5	-19.2%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	-2	-18.2%	-1	-3.8%	0	0.0%	0	0.0%
Doctrine\Common\Reflection\StaticReflectionParser::__construct	0	0.0%	-1	-9.1%	-3	-11.5%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	-1	-9.1%	-2	-7.7%	0	0.0%	0	0.0%
theme@2	0	0.0%	-1	-9.1%	-2	-7.7%	0	0.0%	0	0.0%
Doctrine\Common\Annotations\DocParser::parse	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Component\Utility\Url::stripDangerousProtocols	0	0.0%	0	0.0%	-2	-7.7%	0	0.0%	0	0.0%
Doctrine\Common\Annotations\DocLexer::getType	0	0.0%	0	0.0%	-3	-11.5%	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%
Drupal\system\Plugin\Block\SystemMenuBlock::build	0	0.0%	0	0.0%	1	3.8%	0	0.0%	0	0.0%
Twig_Environment::getCacheFilename	-4	-100.0%	0	0.0%	-8	-30.8%	-168	-100.0%	-88	-100.0%
theme@1	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Component\Utility\Xss::attributes	0	0.0%	0	0.0%	-2	-7.7%	0	0.0%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	0	0.0%	-5	-19.2%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	0	0.0%	-1	-3.8%	0	0.0%	0	0.0%
drupal_settings_initialize	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider	0	0.0%	0	0.0%	1	3.8%	0	0.0%	0	0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	0	0.0%	3	11.5%	0	0.0%	0	0.0%
Symfony\Component\ClassLoader\ClassLoader::findFile	0	0.0%	0	0.0%	-1	-3.8%	0	0.0%	0	0.0%
request_path	0	0.0%	0	0.0%	-2	-7.7%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	0	0.0%	3	11.5%	0	0.0%	0	0.0%
Drupal\Core\ParamConverter\EntityConverter::convert	0	0.0%	0	0.0%	3	11.5%	0	0.0%	0	0.0%