XHProf: Hierarchical Profiler Report

Diff Report: Run #51ad01387670b: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51ad01d342500: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #51ad01387670b	Run #51ad01d342500	Diff	Diff%
Number of Function Calls	890	906	16	1.8%
Incl. Wall Time (microsec)	430	441	11	2.6%
Incl. Wall Time (microsec) per call	0	0	0	0.7%
Excl. Wall Time (microsec)	430	441	11	2.6%
Incl. CPU (microsecs)	1,171	1,174	3	0.3%
Incl. CPU (microsecs) per call	1	1	-0	-1.5%
Excl. CPU (microsec)	1,171	1,174	3	0.3%
Incl. MemUse (bytes)	61,704	62,360	656	1.1%
Incl. MemUse (bytes) per call	69	69	-1	-0.7%
Excl. MemUse (bytes)	61,704	62,360	656	1.1%
Incl. PeakMemUse (bytes)	12,096	12,136	40	0.3%
Incl. PeakMemUse (bytes) per call	14	13	-0	-1.4%
Excl. PeakMemUse (bytes)	12,096	12,136	40	0.3%

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	16	100.0%	11	0.3%	3	0.1%	656	0.4%	40	0.0%
Exclusive Metrics Diff for Current Function			11	100.0%	3	100.0%	656	100.0%	40	100.0%
*Parent functions*
Symfony\Component\ClassLoader\ClassLoader::findFile	0	0.0%	16	145.5%	0	0.0%	-16	-2.4%	40	100.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	-5	-45.5%	-16	-533.3%	0	0.0%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	-2	-18.2%	0	0.0%	0	0.0%	0	0.0%
theme@2	0	0.0%	2	18.2%	4	133.3%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	-2	-18.2%	-7	-233.3%	0	0.0%	0	0.0%
devel_silent	0	0.0%	1	9.1%	3	100.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	1	9.1%	-1	-33.3%	0	0.0%	0	0.0%
Drupal\Component\Utility\UrlValidator::stripDangerousProtocols	0	0.0%	0	0.0%	1	33.3%	0	0.0%	0	0.0%
Drupal\field_sql_storage\Entity\Tables::addField	0	0.0%	0	0.0%	1	33.3%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Twig_Environment::getCacheFilename	16	100.0%	0	0.0%	17	566.7%	672	102.4%	0	0.0%
editor_custom_theme	0	0.0%	0	0.0%	-1	-33.3%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	0	0.0%	4	133.3%	0	0.0%	0	0.0%
drupal_settings_initialize	0	0.0%	0	0.0%	-1	-33.3%	0	0.0%	0	0.0%
contextual_custom_theme	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
edit_custom_theme	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
request_path	0	0.0%	0	0.0%	-1	-33.3%	0	0.0%	0	0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%