XHProf: Hierarchical Profiler Report

Diff Report: Run #519afb4e24ae7: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #519afa8ec2e5c: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #519afb4e24ae7	Run #519afa8ec2e5c	Diff	Diff%
Number of Function Calls	877	873	-4	-0.5%
Incl. Wall Time (microsec)	1,312	1,302	-10	-0.8%
Incl. Wall Time (microsec) per call	1	1	-0	-0.3%
Excl. Wall Time (microsec)	1,312	1,302	-10	-0.8%
Incl. CPU (microsecs)	2,043	2,018	-25	-1.2%
Incl. CPU (microsecs) per call	2	2	-0	-0.8%
Excl. CPU (microsec)	2,043	2,018	-25	-1.2%
Incl. MemUse (bytes)	70,088	69,920	-168	-0.2%
Incl. MemUse (bytes) per call	80	80	0	0.2%
Excl. MemUse (bytes)	70,088	69,920	-168	-0.2%
Incl. PeakMemUse (bytes)	17,504	17,560	56	0.3%
Incl. PeakMemUse (bytes) per call	20	20	0	0.8%
Excl. PeakMemUse (bytes)	17,504	17,560	56	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	-4	-100.0%	-10	-1.1%	-25	-1.7%	-168	-0.3%	56	0.1%
Exclusive Metrics Diff for Current Function			-10	-100.0%	-25	-100.0%	-168	-100.0%	56	100.0%
*Parent functions*
Symfony\Component\ClassLoader\ClassLoader::findFile	0	0.0%	-5	-50.0%	-17	-68.0%	0	0.0%	0	0.0%
Twig_Environment::getCacheFilename	-4	-100.0%	-5	-50.0%	-5	-20.0%	-168	-100.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	1	10.0%	-1	-4.0%	0	0.0%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	-1	-10.0%	4	16.0%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	1	10.0%	-5	-20.0%	0	0.0%	0	0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild	0	0.0%	-1	-10.0%	0	0.0%	0	0.0%	0	0.0%
image_style_path_token	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
file_uri_scheme	0	0.0%	0	0.0%	3	12.0%	0	0.0%	0	0.0%
theme@2	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
drupal_strip_dangerous_protocols	0	0.0%	0	0.0%	4	16.0%	0	0.0%	0	0.0%
theme@3	0	0.0%	0	0.0%	1	4.0%	0	0.0%	0	0.0%
url	0	0.0%	0	0.0%	-5	-20.0%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\field_sql_storage\Entity\Tables::addField	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%
contextual_custom_theme	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
drupal_settings_initialize	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%
editor_custom_theme	0	0.0%	0	0.0%	-1	-4.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	0	0.0%	0	0.0%	0	0.0%	56	100.0%
request_path	0	0.0%	0	0.0%	1	4.0%	0	0.0%	0	0.0%
devel_silent	0	0.0%	0	0.0%	-1	-4.0%	0	0.0%	0	0.0%
Drupal\views\Plugin\views\query\Sql::add_field	0	0.0%	0	0.0%	-3	-12.0%	0	0.0%	0	0.0%