XHProf: Hierarchical Profiler Report

Diff Report: Run #51ec517fc2424: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec52a09990a: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #51ec517fc2424	Run #51ec52a09990a	Diff	Diff%
Number of Function Calls	3,115	3,119	4	0.1%
Incl. Wall Time (microsec)	1,087	1,107	20	1.8%
Incl. Wall Time (microsec) per call	0	0	0	1.7%
Excl. Wall Time (microsec)	1,087	1,107	20	1.8%
Incl. CPU (microsecs)	3,885	3,891	6	0.2%
Incl. CPU (microsecs) per call	1	1	0	0.0%
Excl. CPU (microsec)	3,885	3,891	6	0.2%
Incl. MemUse (bytes)	203,408	203,680	272	0.1%
Incl. MemUse (bytes) per call	65	65	0	0.0%
Excl. MemUse (bytes)	203,408	203,680	272	0.1%
Incl. PeakMemUse (bytes)	8,776	8,376	-400	-4.6%
Incl. PeakMemUse (bytes) per call	3	3	-0	-4.7%
Excl. PeakMemUse (bytes)	8,776	8,376	-400	-4.6%

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%	20	0.5%	6	0.1%	272	1.2%	-400	-1.7%
Exclusive Metrics Diff for Current Function			20	100.0%	6	100.0%	272	100.0%	-400	-100.0%
*Parent functions*
Doctrine\Common\Reflection\StaticReflectionParser::__construct	0	0.0%	15	75.0%	36	600.0%	48	17.6%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	-13	-65.0%	4	66.7%	0	0.0%	0	0.0%
Twig_Environment::getCacheFilename	4	100.0%	5	25.0%	4	66.7%	168	61.8%	0	0.0%
theme@2	0	0.0%	5	25.0%	3	50.0%	0	0.0%	-400	-100.0%
Doctrine\Common\Annotations\DocLexer::getType	0	0.0%	4	20.0%	-29	-483.3%	32	11.8%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	3	15.0%	-2	-33.3%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	1	5.0%	-20	-333.3%	0	0.0%	0	0.0%
Doctrine\Common\Reflection\StaticReflectionParser::parse	0	0.0%	1	5.0%	1	16.7%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	-1	-5.0%	-2	-33.3%	0	0.0%	0	0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	0	0.0%	1	16.7%	0	0.0%	0	0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::build	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%	-19	-316.7%	0	0.0%	0	0.0%
Drupal\Component\Utility\Url::stripDangerousProtocols	0	0.0%	0	0.0%	-1	-16.7%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	0.0%	-2	-33.3%	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\Component\Utility\Crypt::randomBytes	0	0.0%	0	0.0%	-1	-16.7%	0	0.0%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider	0	0.0%	0	0.0%	1	16.7%	0	0.0%	0	0.0%
request_path	0	0.0%	0	0.0%	1	16.7%	0	0.0%	0	0.0%
Doctrine\Common\Annotations\DocParser::parse	0	0.0%	0	0.0%	32	533.3%	24	8.8%	0	0.0%
Doctrine\Common\Annotations\DocParser::parse@1	0	0.0%	0	0.0%	2	33.3%	0	0.0%	0	0.0%
Drupal\Core\Entity\Query\Sql\Tables::addField	0	0.0%	0	0.0%	-3	-50.0%	0	0.0%	0	0.0%