XHProf: Hierarchical Profiler Report

Diff Report: Run #51aad15cb89bb: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51aad231c9c46: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #51aad15cb89bb	Run #51aad231c9c46	Diff	Diff%
Number of Function Calls	155	159	4	2.6%
Incl. Wall Time (microsec)	47	38	-9	-19.1%
Incl. Wall Time (microsec) per call	0	0	-0	-21.2%
Excl. Wall Time (microsec)	47	38	-9	-19.1%
Incl. CPU (microsecs)	219	207	-12	-5.5%
Incl. CPU (microsecs) per call	1	1	-0	-7.9%
Excl. CPU (microsec)	219	207	-12	-5.5%
Incl. MemUse (bytes)	32,336	32,520	184	0.6%
Incl. MemUse (bytes) per call	209	205	-4	-2.0%
Excl. MemUse (bytes)	32,336	32,520	184	0.6%
Incl. PeakMemUse (bytes)	14,032	14,048	16	0.1%
Incl. PeakMemUse (bytes) per call	91	88	-2	-2.4%
Excl. PeakMemUse (bytes)	14,032	14,048	16	0.1%

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%	-9	-3.4%	-12	-0.8%	184	0.3%	16	0.0%
Exclusive Metrics Diff for Current Function			-9	-100.0%	-12	-100.0%	184	100.0%	16	100.0%
*Parent functions*
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	-3	-33.3%	-10	-83.3%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	-3	-33.3%	6	50.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	-1	-11.1%	-2	-16.7%	16	8.7%	16	100.0%
theme@2	0	0.0%	-1	-11.1%	1	8.3%	0	0.0%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	-1	-11.1%	4	33.3%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	0.0%	1	8.3%	0	0.0%	0	0.0%
Twig_Environment::getCacheFilename	4	100.0%	0	0.0%	1	8.3%	168	91.3%	0	0.0%
theme@4	0	0.0%	0	0.0%	-5	-41.7%	0	0.0%	0	0.0%
theme@3	0	0.0%	0	0.0%	-2	-16.7%	0	0.0%	0	0.0%
Drupal\field_sql_storage\Entity\Tables::addField	0	0.0%	0	0.0%	1	8.3%	0	0.0%	0	0.0%
Drupal\Component\Utility\UrlValidator::stripDangerousProtocols	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
contextual_custom_theme	0	0.0%	0	0.0%	1	8.3%	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%	-1	-8.3%	0	0.0%	0	0.0%
editor_custom_theme	0	0.0%	0	0.0%	-1	-8.3%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	0	0.0%	-4	-33.3%	0	0.0%	0	0.0%
request_path	0	0.0%	0	0.0%	-1	-8.3%	0	0.0%	0	0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	0	0.0%	-1	-8.3%	0	0.0%	0	0.0%