XHProf: Hierarchical Profiler Report

Diff Report: Run #519abf80bb905: XHProf Run (Namespace=drupal-perf-jenlampton)
vs.
Run #519ac1a144fa6: XHProf Run (Namespace=drupal-perf-jenlampton)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #519abf80bb905	Run #519ac1a144fa6	Diff	Diff%
Number of Function Calls	833	824	-9	-1.1%
Incl. Wall Time (microsec)	1,137	1,140	3	0.3%
Incl. Wall Time (microsec) per call	1	1	0	1.4%
Excl. Wall Time (microsec)	1,137	1,140	3	0.3%
Incl. CPU (microsecs)	2,039	1,931	-108	-5.3%
Incl. CPU (microsecs) per call	2	2	-0	-4.3%
Excl. CPU (microsec)	2,039	1,931	-108	-5.3%
Incl. MemUse (bytes)	69,848	67,736	-2,112	-3.0%
Incl. MemUse (bytes) per call	84	82	-2	-2.0%
Excl. MemUse (bytes)	69,848	67,736	-2,112	-3.0%
Incl. PeakMemUse (bytes)	16,104	15,200	-904	-5.6%
Incl. PeakMemUse (bytes) per call	19	18	-1	-4.6%
Excl. PeakMemUse (bytes)	16,104	15,200	-904	-5.6%

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	-9	-100.0%	3	0.4%	-108	-7.1%	-2,112	-0.5%	-904	-0.1%
Exclusive Metrics Diff for Current Function			3	100.0%	-108	-100.0%	-2,112	-100.0%	-904	-100.0%
*Parent functions*
Symfony\Component\ClassLoader\ClassLoader::findFile	-10	-111.1%	9	300.0%	-82	-75.9%	-448	-21.2%	0	0.0%
theme@2	9	100.0%	9	300.0%	16	14.8%	288	13.6%	0	0.0%
dblog_watchdog	-3	-33.3%	-4	-133.3%	-7	-6.5%	-904	-42.8%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	-1	-11.1%	-3	-100.0%	-3	-2.8%	-32	-1.5%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	-2	-22.2%	-3	-100.0%	-5	-4.6%	-64	-3.0%	-32	-3.5%
Twig_Error::updateRepr	-2	-22.2%	-3	-100.0%	-6	-5.6%	-952	-45.1%	-872	-96.5%
theme@1	0	0.0%	-1	-33.3%	2	1.9%	0	0.0%	0	0.0%
drupal_strip_dangerous_protocols	0	0.0%	-1	-33.3%	-1	-0.9%	0	0.0%	0	0.0%
contextual_custom_theme	0	0.0%	-1	-33.3%	-1	-0.9%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	1	33.3%	-6	-5.6%	0	0.0%	0	0.0%
Drupal\field_sql_storage\Entity\Tables::addField	0	0.0%	0	0.0%	-1	-0.9%	0	0.0%	0	0.0%
Twig_Environment::getCacheFilename	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
editor_custom_theme	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%	-11	-10.2%	0	0.0%	0	0.0%
drupal_settings_initialize	0	0.0%	0	0.0%	2	1.9%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	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%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild	0	0.0%	0	0.0%	-5	-4.6%	0	0.0%	0	0.0%
request_path	0	0.0%	0	0.0%	-1	-0.9%	0	0.0%	0	0.0%
Drupal\views\Plugin\views\query\Sql::add_field	0	0.0%	0	0.0%	1	0.9%	0	0.0%	0	0.0%