XHProf: Hierarchical Profiler Report

Diff Report: Run #519bd405e5fe3: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #519bd4feea4c7: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #519bd405e5fe3	Run #519bd4feea4c7	Diff	Diff%
Number of Function Calls	839	843	4	0.5%
Incl. Wall Time (microsec)	1,279	1,293	14	1.1%
Incl. Wall Time (microsec) per call	2	2	0	0.6%
Excl. Wall Time (microsec)	1,279	1,293	14	1.1%
Incl. CPU (microsecs)	1,943	1,999	56	2.9%
Incl. CPU (microsecs) per call	2	2	0	2.4%
Excl. CPU (microsec)	1,943	1,999	56	2.9%
Incl. MemUse (bytes)	62,200	62,360	160	0.3%
Incl. MemUse (bytes) per call	74	74	-0	-0.2%
Excl. MemUse (bytes)	62,200	62,360	160	0.3%
Incl. PeakMemUse (bytes)	16,568	16,568	0	0.0%
Incl. PeakMemUse (bytes) per call	20	20	-0	-0.5%
Excl. PeakMemUse (bytes)	16,568	16,568	0	0.0%

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%	14	0.2%	56	0.8%	160	0.3%	0	0.0%
Exclusive Metrics Diff for Current Function			14	100.0%	56	100.0%	160	100.0%	0	N/A%
*Parent functions*
Symfony\Component\ClassLoader\ClassLoader::findFile	0	0.0%	9	64.3%	40	71.4%	-8	-5.0%	0	N/A%
Twig_Environment::getCacheFilename	4	100.0%	4	28.6%	9	16.1%	168	105.0%	0	N/A%
theme@2	0	0.0%	0	0.0%	4	7.1%	0	0.0%	0	N/A%
url	0	0.0%	0	0.0%	-2	-3.6%	0	0.0%	0	N/A%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	0	0.0%	-2	-3.6%	0	0.0%	0	N/A%
file_uri_scheme	0	0.0%	1	7.1%	2	3.6%	0	0.0%	0	N/A%
contextual_custom_theme	0	0.0%	0	0.0%	2	3.6%	0	0.0%	0	N/A%
devel_silent	0	0.0%	0	0.0%	2	3.6%	0	0.0%	0	N/A%
Drupal\Component\Uuid\Php::generate	0	0.0%	0	0.0%	2	3.6%	0	0.0%	0	N/A%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	1	7.1%	-2	-3.6%	0	0.0%	0	N/A%
image_style_path_token	0	0.0%	0	0.0%	-1	-1.8%	0	0.0%	0	N/A%
drupal_settings_initialize	0	0.0%	0	0.0%	-1	-1.8%	0	0.0%	0	N/A%
theme@1	0	0.0%	0	0.0%	1	1.8%	0	0.0%	0	N/A%
drupal_strip_dangerous_protocols	0	0.0%	1	7.1%	1	1.8%	0	0.0%	0	N/A%
request_path	0	0.0%	0	0.0%	1	1.8%	0	0.0%	0	N/A%
editor_custom_theme	0	0.0%	0	0.0%	-1	-1.8%	0	0.0%	0	N/A%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	0	0.0%	1	1.8%	0	0.0%	0	N/A%
Drupal\views\Plugin\views\query\Sql::add_field	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	N/A%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild	0	0.0%	-1	-7.1%	0	0.0%	0	0.0%	0	N/A%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	N/A%
edit_custom_theme	0	0.0%	-1	-7.1%	0	0.0%	0	0.0%	0	N/A%