XHProf: Hierarchical Profiler Report

Diff Report: Run #519eb20dce0a3: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #519eb193b2faa: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #519eb20dce0a3	Run #519eb193b2faa	Diff	Diff%
Number of Function Calls	930	886	-44	-4.7%
Incl. Wall Time (microsec)	541	448	-93	-17.2%
Incl. Wall Time (microsec) per call	1	1	-0	-13.1%
Excl. Wall Time (microsec)	541	448	-93	-17.2%
Incl. CPU (microsecs)	1,209	1,113	-96	-7.9%
Incl. CPU (microsecs) per call	1	1	-0	-3.4%
Excl. CPU (microsec)	1,209	1,113	-96	-7.9%
Incl. MemUse (bytes)	66,104	63,528	-2,576	-3.9%
Incl. MemUse (bytes) per call	71	72	1	0.9%
Excl. MemUse (bytes)	66,104	63,528	-2,576	-3.9%
Incl. PeakMemUse (bytes)	20,272	19,176	-1,096	-5.4%
Incl. PeakMemUse (bytes) per call	22	22	-0	-0.7%
Excl. PeakMemUse (bytes)	20,272	19,176	-1,096	-5.4%

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	-44	-100.0%	-93	-1.1%	-96	-0.6%	-2,576	-0.3%	-1,096	-0.1%
Exclusive Metrics Diff for Current Function			-93	-100.0%	-96	-100.0%	-2,576	-100.0%	-1,096	-100.0%
*Parent functions*
Symfony\Component\ClassLoader\ClassLoader::findFile	-8	-18.2%	-81	-87.1%	-41	-42.7%	-288	-11.2%	0	0.0%
Twig_Environment::getCacheFilename	-36	-81.8%	-8	-8.6%	-47	-49.0%	-2,296	-89.1%	-784	-71.5%
image_style_path_token	0	0.0%	-2	-2.2%	-1	-1.0%	0	0.0%	0	0.0%
file_uri_scheme	0	0.0%	2	2.2%	-8	-8.3%	0	0.0%	-312	-28.5%
theme@4	0	0.0%	2	2.2%	-2	-2.1%	8	0.3%	0	0.0%
drupal_settings_initialize	0	0.0%	-2	-2.2%	1	1.0%	0	0.0%	0	0.0%
theme@2	0	0.0%	-1	-1.1%	-2	-2.1%	0	0.0%	0	0.0%
drupal_strip_dangerous_protocols	0	0.0%	-1	-1.1%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	-1	-1.1%	0	0.0%	0	0.0%	0	0.0%
url	0	0.0%	-1	-1.1%	-2	-2.1%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	0.0%	1	1.0%	0	0.0%	0	0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild	0	0.0%	0	0.0%	-2	-2.1%	0	0.0%	0	0.0%
devel_silent	0	0.0%	0	0.0%	-1	-1.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	0	0.0%	2	2.1%	0	0.0%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	0	0.0%	4	4.2%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	0	0.0%	1	1.0%	0	0.0%	0	0.0%
contextual_custom_theme	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
edit_custom_theme	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	0	0.0%	-1	-1.0%	0	0.0%	0	0.0%
request_path	0	0.0%	0	0.0%	3	3.1%	0	0.0%	0	0.0%
editor_custom_theme	0	0.0%	0	0.0%	2	2.1%	0	0.0%	0	0.0%
Drupal\views\Plugin\views\query\Sql::add_field	0	0.0%	0	0.0%	-3	-3.1%	0	0.0%	0	0.0%