XHProf: Hierarchical Profiler Report

Diff Report: Run #51afe875368e3: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51afe7feeb64d: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #51afe875368e3	Run #51afe7feeb64d	Diff	Diff%
Number of Function Calls	985	981	-4	-0.4%
Incl. Wall Time (microsec)	483	483	0	0.0%
Incl. Wall Time (microsec) per call	0	0	0	0.4%
Excl. Wall Time (microsec)	483	483	0	0.0%
Incl. CPU (microsecs)	1,251	1,261	10	0.8%
Incl. CPU (microsecs) per call	1	1	0	1.2%
Excl. CPU (microsec)	1,251	1,261	10	0.8%
Incl. MemUse (bytes)	71,776	71,608	-168	-0.2%
Incl. MemUse (bytes) per call	73	73	0	0.2%
Excl. MemUse (bytes)	71,776	71,608	-168	-0.2%
Incl. PeakMemUse (bytes)	21,088	21,112	24	0.1%
Incl. PeakMemUse (bytes) per call	21	22	0	0.5%
Excl. PeakMemUse (bytes)	21,088	21,112	24	0.1%

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%	0	0.0%	10	16.7%	-168	-0.4%	24	0.1%
Exclusive Metrics Diff for Current Function			0	N/A%	10	100.0%	-168	-100.0%	24	100.0%
*Parent functions*
Symfony\Component\ClassLoader\ClassLoader::findFile	0	0.0%	9	N/A%	3	30.0%	0	0.0%	40	166.7%
Twig_Environment::getCacheFilename	-4	-100.0%	-3	N/A%	-1	-10.0%	-168	-100.0%	0	0.0%
theme@2	0	0.0%	-2	N/A%	-2	-20.0%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	-2	N/A%	3	30.0%	0	0.0%	-16	-66.7%
theme@3	0	0.0%	1	N/A%	-1	-10.0%	0	0.0%	0	0.0%
devel_silent	0	0.0%	-1	N/A%	-1	-10.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	-1	N/A%	3	30.0%	0	0.0%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	-1	N/A%	0	0.0%	0	0.0%	0	0.0%
Drupal\field_sql_storage\Entity\Tables::addField	0	0.0%	0	N/A%	-3	-30.0%	0	0.0%	0	0.0%
Drupal\Component\Utility\UrlValidator::stripDangerousProtocols	0	0.0%	0	N/A%	-1	-10.0%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	N/A%	-3	-30.0%	0	0.0%	0	0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild	0	0.0%	0	N/A%	0	0.0%	0	0.0%	0	0.0%
theme@4	0	0.0%	0	N/A%	-1	-10.0%	0	0.0%	0	0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	0	N/A%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	0	N/A%	3	30.0%	0	0.0%	0	0.0%
drupal_settings_initialize	0	0.0%	0	N/A%	1	10.0%	0	0.0%	0	0.0%
contextual_custom_theme	0	0.0%	0	N/A%	-2	-20.0%	0	0.0%	0	0.0%
edit_custom_theme	0	0.0%	0	N/A%	-1	-10.0%	0	0.0%	0	0.0%
request_path	0	0.0%	0	N/A%	1	10.0%	0	0.0%	0	0.0%
editor_custom_theme	0	0.0%	0	N/A%	1	10.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	0	N/A%	11	110.0%	0	0.0%	0	0.0%