XHProf: Hierarchical Profiler Report

Diff Report: Run #519aa37b5bebd: XHProf Run (Namespace=drupal-perf-jenlampton)
vs.
Run #519aa45581fb3: XHProf Run (Namespace=drupal-perf-jenlampton)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #519aa37b5bebd	Run #519aa45581fb3	Diff	Diff%
Number of Function Calls	798	823	25	3.1%
Incl. Wall Time (microsec)	1,052	1,105	53	5.0%
Incl. Wall Time (microsec) per call	1	1	0	1.8%
Excl. Wall Time (microsec)	1,052	1,105	53	5.0%
Incl. CPU (microsecs)	1,881	2,003	122	6.5%
Incl. CPU (microsecs) per call	2	2	0	3.3%
Excl. CPU (microsec)	1,881	2,003	122	6.5%
Incl. MemUse (bytes)	69,752	74,664	4,912	7.0%
Incl. MemUse (bytes) per call	87	91	3	3.8%
Excl. MemUse (bytes)	69,752	74,664	4,912	7.0%
Incl. PeakMemUse (bytes)	18,976	19,456	480	2.5%
Incl. PeakMemUse (bytes) per call	24	24	-0	-0.6%
Excl. PeakMemUse (bytes)	18,976	19,456	480	2.5%

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	25	100.0%	53	0.7%	122	2.3%	4,912	1.7%	480	0.2%
Exclusive Metrics Diff for Current Function			53	100.0%	122	100.0%	4,912	100.0%	480	100.0%
*Parent functions*
Symfony\Component\ClassLoader\ClassLoader::findFile	8	32.0%	30	56.6%	68	55.7%	336	6.8%	0	0.0%
dblog_watchdog	6	24.0%	11	20.8%	16	13.1%	1,048	21.3%	0	0.0%
_filter_xss_split	4	16.0%	8	15.1%	11	9.0%	896	18.2%	0	0.0%
_drupal_log_error	4	16.0%	4	7.5%	10	8.2%	976	19.9%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	-4	-7.5%	-4	-3.3%	0	0.0%	0	0.0%
_filter_xss_attributes	2	8.0%	2	3.8%	8	6.6%	832	16.9%	480	100.0%
_drupal_session_read	1	4.0%	1	1.9%	4	3.3%	824	16.8%	0	0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild	0	0.0%	1	1.9%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	1	1.9%	3	2.5%	0	0.0%	0	0.0%
theme@2	0	0.0%	-1	-1.9%	-7	-5.7%	0	0.0%	0	0.0%
contextual_custom_theme	0	0.0%	1	1.9%	0	0.0%	0	0.0%	0	0.0%
theme@1	0	0.0%	-1	-1.9%	-1	-0.8%	0	0.0%	0	0.0%
drupal_strip_dangerous_protocols	0	0.0%	0	0.0%	1	0.8%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	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\Component\Uuid\Php::generate	0	0.0%	0	0.0%	-1	-0.8%	0	0.0%	0	0.0%
drupal_settings_initialize	0	0.0%	0	0.0%	1	0.8%	0	0.0%	0	0.0%
edit_custom_theme	0	0.0%	0	0.0%	1	0.8%	0	0.0%	0	0.0%
editor_custom_theme	0	0.0%	0	0.0%	5	4.1%	0	0.0%	0	0.0%
Drupal\views\Plugin\views\query\Sql::add_field	0	0.0%	0	0.0%	-1	-0.8%	0	0.0%	0	0.0%
request_path	0	0.0%	0	0.0%	-2	-1.6%	0	0.0%	0	0.0%
Twig_Environment::getCacheFilename	0	0.0%	0	0.0%	10	8.2%	0	0.0%	0	0.0%