XHProf: Hierarchical Profiler Report

Diff Report: Run #519e62c02d767: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519e636f9416a: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #519e62c02d767	Run #519e636f9416a	Diff	Diff%
Number of Function Calls	336	340	4	1.2%
Incl. Wall Time (microsec)	156	162	6	3.8%
Incl. Wall Time (microsec) per call	0	0	0	2.6%
Excl. Wall Time (microsec)	156	162	6	3.8%
Incl. CPU (microsecs)	485	480	-5	-1.0%
Incl. CPU (microsecs) per call	1	1	-0	-2.2%
Excl. CPU (microsec)	485	480	-5	-1.0%
Incl. MemUse (bytes)	35,128	35,304	176	0.5%
Incl. MemUse (bytes) per call	105	104	-1	-0.7%
Excl. MemUse (bytes)	35,128	35,304	176	0.5%
Incl. PeakMemUse (bytes)	12,080	12,080	0	0.0%
Incl. PeakMemUse (bytes) per call	36	36	-0	-1.2%
Excl. PeakMemUse (bytes)	12,080	12,080	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%	6	0.0%	-5	-0.0%	176	0.3%	0	0.0%
Exclusive Metrics Diff for Current Function			6	100.0%	-5	-100.0%	176	100.0%	0	N/A%
*Parent functions*
Drupal\Component\Uuid\Php::generate	0	0.0%	-6	-100.0%	1	20.0%	0	0.0%	0	N/A%
theme@2	0	0.0%	4	66.7%	2	40.0%	0	0.0%	0	N/A%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	4	66.7%	5	100.0%	0	0.0%	0	N/A%
file_uri_scheme	0	0.0%	-2	-33.3%	-16	-320.0%	0	0.0%	0	N/A%
theme@4	0	0.0%	2	33.3%	2	40.0%	8	4.5%	0	N/A%
Twig_Environment::getCacheFilename	4	100.0%	2	33.3%	8	160.0%	168	95.5%	0	N/A%
editor_custom_theme	0	0.0%	1	16.7%	-1	-20.0%	0	0.0%	0	N/A%
drupal_settings_initialize	0	0.0%	1	16.7%	1	20.0%	0	0.0%	0	N/A%
image_style_path_token	0	0.0%	0	0.0%	-3	-60.0%	0	0.0%	0	N/A%
theme@1	0	0.0%	0	0.0%	-1	-20.0%	0	0.0%	0	N/A%
drupal_strip_dangerous_protocols	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	N/A%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild	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%	-1	-20.0%	0	0.0%	0	N/A%
contextual_custom_theme	0	0.0%	0	0.0%	-1	-20.0%	0	0.0%	0	N/A%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	0	0.0%	-1	-20.0%	0	0.0%	0	N/A%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	0	0.0%	-3	-60.0%	0	0.0%	0	N/A%
edit_custom_theme	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	N/A%
devel_silent	0	0.0%	0	0.0%	3	60.0%	0	0.0%	0	N/A%
Drupal\views\Plugin\views\query\Sql::add_field	0	0.0%	0	0.0%	-1	-20.0%	0	0.0%	0	N/A%
request_path	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	N/A%
url	0	0.0%	0	0.0%	1	20.0%	0	0.0%	0	N/A%