XHProf: Hierarchical Profiler Report

Diff Report: Run #519fbb3f5c2a0: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fbcb7249d1: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #519fbb3f5c2a0	Run #519fbcb7249d1	Diff	Diff%
Number of Function Calls	842	846	4	0.5%
Incl. Wall Time (microsec)	561	585	24	4.3%
Incl. Wall Time (microsec) per call	1	1	0	3.8%
Excl. Wall Time (microsec)	561	585	24	4.3%
Incl. CPU (microsecs)	1,129	1,158	29	2.6%
Incl. CPU (microsecs) per call	1	1	0	2.1%
Excl. CPU (microsec)	1,129	1,158	29	2.6%
Incl. MemUse (bytes)	62,592	62,760	168	0.3%
Incl. MemUse (bytes) per call	74	74	-0	-0.2%
Excl. MemUse (bytes)	62,592	62,760	168	0.3%
Incl. PeakMemUse (bytes)	19,040	19,040	0	0.0%
Incl. PeakMemUse (bytes) per call	23	23	-0	-0.5%
Excl. PeakMemUse (bytes)	19,040	19,040	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%	24	6.3%	29	9.1%	168	0.4%	0	0.0%
Exclusive Metrics Diff for Current Function			24	100.0%	29	100.0%	168	100.0%	0	N/A%
*Parent functions*
Symfony\Component\ClassLoader\ClassLoader::findFile	0	0.0%	15	62.5%	2	6.9%	0	0.0%	0	N/A%
Twig_Environment::getCacheFilename	4	100.0%	7	29.2%	12	41.4%	168	100.0%	0	N/A%
drupal_strip_dangerous_protocols	0	0.0%	-1	-4.2%	-2	-6.9%	0	0.0%	0	N/A%
theme@1	0	0.0%	1	4.2%	0	0.0%	0	0.0%	0	N/A%
file_uri_scheme	0	0.0%	1	4.2%	7	24.1%	0	0.0%	0	N/A%
theme@2	0	0.0%	1	4.2%	2	6.9%	0	0.0%	0	N/A%
url	0	0.0%	0	0.0%	1	3.4%	0	0.0%	0	N/A%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild	0	0.0%	0	0.0%	-1	-3.4%	0	0.0%	0	N/A%
theme@4	0	0.0%	0	0.0%	1	3.4%	0	0.0%	0	N/A%
image_style_path_token	0	0.0%	0	0.0%	2	6.9%	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%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	N/A%
Drupal\Component\Uuid\Php::generate	0	0.0%	0	0.0%	1	3.4%	0	0.0%	0	N/A%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	0	0.0%	5	17.2%	0	0.0%	0	N/A%
drupal_settings_initialize	0	0.0%	0	0.0%	-1	-3.4%	0	0.0%	0	N/A%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	0	0.0%	1	3.4%	0	0.0%	0	N/A%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	0	0.0%	-1	-3.4%	0	0.0%	0	N/A%
editor_custom_theme	0	0.0%	0	0.0%	-1	-3.4%	0	0.0%	0	N/A%
edit_custom_theme	0	0.0%	0	0.0%	-1	-3.4%	0	0.0%	0	N/A%
contextual_custom_theme	0	0.0%	0	0.0%	1	3.4%	0	0.0%	0	N/A%
request_path	0	0.0%	0	0.0%	1	3.4%	0	0.0%	0	N/A%