XHProf: Hierarchical Profiler Report

Diff Report: Run #519ac1c42d00d: XHProf Run (Namespace=drupal-perf-jenlampton)
vs.
Run #519abf80bb905: XHProf Run (Namespace=drupal-perf-jenlampton)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #519ac1c42d00d	Run #519abf80bb905	Diff	Diff%
Number of Function Calls	849	833	-16	-1.9%
Incl. Wall Time (microsec)	1,139	1,137	-2	-0.2%
Incl. Wall Time (microsec) per call	1	1	0	1.7%
Excl. Wall Time (microsec)	1,139	1,137	-2	-0.2%
Incl. CPU (microsecs)	2,017	2,039	22	1.1%
Incl. CPU (microsecs) per call	2	2	0	3.0%
Excl. CPU (microsec)	2,017	2,039	22	1.1%
Incl. MemUse (bytes)	72,672	69,848	-2,824	-3.9%
Incl. MemUse (bytes) per call	86	84	-2	-2.0%
Excl. MemUse (bytes)	72,672	69,848	-2,824	-3.9%
Incl. PeakMemUse (bytes)	15,680	16,104	424	2.7%
Incl. PeakMemUse (bytes) per call	18	19	1	4.7%
Excl. PeakMemUse (bytes)	15,680	16,104	424	2.7%

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	-16	-100.0%	-2	-0.0%	22	0.2%	-2,824	-1.8%	424	0.0%
Exclusive Metrics Diff for Current Function			-2	-100.0%	22	100.0%	-2,824	-100.0%	424	100.0%
*Parent functions*
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	17	850.0%	21	95.5%	0	0.0%	0	0.0%
theme@2	-9	-56.2%	-9	-450.0%	-20	-90.9%	-288	-10.2%	0	0.0%
_filter_xss_split	-4	-25.0%	-7	-350.0%	-13	-59.1%	-896	-31.7%	0	0.0%
_drupal_log_error	-4	-25.0%	-4	-200.0%	-8	-36.4%	-976	-34.6%	0	0.0%
dblog_watchdog	-3	-18.8%	-4	-200.0%	-6	-27.3%	-144	-5.1%	0	0.0%
Twig_Error::updateRepr	2	12.5%	3	150.0%	6	27.3%	952	33.7%	872	205.7%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	2	12.5%	3	150.0%	5	22.7%	64	2.3%	32	7.5%
_filter_xss_attributes	-2	-12.5%	-2	-100.0%	-6	-27.3%	-832	-29.5%	-480	-113.2%
Symfony\Component\HttpFoundation\Request::preparePathInfo	1	6.2%	2	100.0%	4	18.2%	32	1.1%	0	0.0%
Symfony\Component\ClassLoader\ClassLoader::findFile	2	12.5%	-2	-100.0%	46	209.1%	96	3.4%	0	0.0%
request_path	0	0.0%	-1	-50.0%	-2	-9.1%	0	0.0%	0	0.0%
contextual_custom_theme	0	0.0%	1	50.0%	1	4.5%	0	0.0%	0	0.0%
_drupal_session_read	-1	-6.2%	-1	-50.0%	-4	-18.2%	-824	-29.2%	0	0.0%
theme@1	0	0.0%	1	50.0%	-2	-9.1%	0	0.0%	0	0.0%
drupal_strip_dangerous_protocols	0	0.0%	1	50.0%	1	4.5%	0	0.0%	0	0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild	0	0.0%	0	0.0%	5	22.7%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	0	0.0%	1	4.5%	0	0.0%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	0	0.0%	-1	-4.5%	-8	-0.3%	0	0.0%
drupal_settings_initialize	0	0.0%	0	0.0%	-1	-4.5%	0	0.0%	0	0.0%
edit_custom_theme	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
editor_custom_theme	0	0.0%	0	0.0%	-1	-4.5%	0	0.0%	0	0.0%
Twig_Environment::getCacheFilename	0	0.0%	0	0.0%	1	4.5%	0	0.0%	0	0.0%
Drupal\views\Plugin\views\query\Sql::add_field	0	0.0%	0	0.0%	-5	-22.7%	0	0.0%	0	0.0%
Drupal\field_sql_storage\Entity\Tables::addField	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%