XHProf: Hierarchical Profiler Report

Diff Report: Run #517d525cbaeb1: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517d51ae434de: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Regression/Improvement summary for array_keys

array_keys	Run #517d525cbaeb1	Run #517d51ae434de	Diff	Diff%
Number of Function Calls	478	477	-1	-0.2%
Incl. Wall Time (microsec)	561	548	-13	-2.3%
Incl. Wall Time (microsec) per call	1	1	-0	-2.1%
Excl. Wall Time (microsec)	561	548	-13	-2.3%
Incl. CPU (microsecs)	941	940	-1	-0.1%
Incl. CPU (microsecs) per call	2	2	0	0.1%
Excl. CPU (microsec)	941	940	-1	-0.1%
Incl. MemUse (bytes)	229,736	230,064	328	0.1%
Incl. MemUse (bytes) per call	481	482	2	0.4%
Excl. MemUse (bytes)	229,736	230,064	328	0.1%
Incl. PeakMemUse (bytes)	49,824	50,104	280	0.6%
Incl. PeakMemUse (bytes) per call	104	105	1	0.8%
Excl. PeakMemUse (bytes)	49,824	50,104	280	0.6%

Parent/Child Regression/Improvement report for array_keys [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*
array_keys	-1	-100.0%	-13	-0.2%	-1	-0.0%	328	5.3%	280	4.6%
Exclusive Metrics Diff for Current Function			-13	-100.0%	-1	-100.0%	328	100.0%	280	100.0%
*Parent functions*
Drupal\Core\Extension\ModuleHandler::getImplementations	-1	-100.0%	-18	-138.5%	-6	-600.0%	-88	-26.8%	256	91.4%
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	0.0%	-4	-30.8%	-3	-300.0%	0	0.0%	0	0.0%
drupal_schema_fields_sql	0	0.0%	-4	-30.8%	-3	-300.0%	0	0.0%	0	0.0%
Drupal\user\UserStorageController::attachLoad	0	0.0%	3	23.1%	4	400.0%	0	0.0%	0	0.0%
element_children	0	0.0%	3	23.1%	-9	-900.0%	0	0.0%	0	0.0%
Drupal\Core\Database\Connection::expandArguments	0	0.0%	3	23.1%	7	700.0%	-8	-2.4%	0	0.0%
Drupal\Core\DrupalKernel::initializeContainer	0	0.0%	2	15.4%	3	300.0%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	0.0%	1	7.7%	-8	-800.0%	424	129.3%	24	8.6%
element_get_visible_children	0	0.0%	1	7.7%	0	0.0%	0	0.0%	0	0.0%
block_page_build	0	0.0%	0	0.0%	12	1200.0%	0	0.0%	0	0.0%
theme@2	0	0.0%	0	0.0%	-1	-100.0%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	0.0%	1	100.0%	0	0.0%	0	0.0%
field_content_languages	0	0.0%	0	0.0%	-1	-100.0%	0	0.0%	0	0.0%
system_page_alter	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Entity\Field\FieldItemBase::setValue	0	0.0%	0	0.0%	3	300.0%	0	0.0%	0	0.0%
Drupal\Core\Entity\DatabaseStorageController::load	0	0.0%	0	0.0%	-3	-300.0%	0	0.0%	0	0.0%
Drupal\Core\Extension\CachedModuleHandler::getBootstrapModules	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::getMultiple@1	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\node\NodeStorageController::attachLoad	0	0.0%	0	0.0%	-1	-100.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Entity\Field\Type\Field::setValue	0	0.0%	0	0.0%	4	400.0%	0	0.0%	0	0.0%