XHProf: Hierarchical Profiler Report

Diff Report: Run #52e49acfb0eb8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e49b394aea8: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Regression/Improvement summary for array_keys

array_keys	Run #52e49acfb0eb8	Run #52e49b394aea8	Diff	Diff%
Number of Function Calls	884	887	3	0.3%
Incl. Wall Time (microsec)	508	487	-21	-4.1%
Incl. Wall Time (microsec) per call	1	1	-0	-4.5%
Excl. Wall Time (microsec)	508	487	-21	-4.1%
Incl. CPU (microsecs)	1,322	1,291	-31	-2.3%
Incl. CPU (microsecs) per call	1	1	-0	-2.7%
Excl. CPU (microsec)	1,322	1,291	-31	-2.3%
Incl. MemUse (bytes)	325,768	327,328	1,560	0.5%
Incl. MemUse (bytes) per call	369	369	1	0.1%
Excl. MemUse (bytes)	325,768	327,328	1,560	0.5%
Incl. PeakMemUse (bytes)	45,184	44,312	-872	-1.9%
Incl. PeakMemUse (bytes) per call	51	50	-1	-2.3%
Excl. PeakMemUse (bytes)	45,184	44,312	-872	-1.9%

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	3	100.0%	-21	-1.9%	-31	-3.8%	1,560	6.0%	-872	-3.3%
Exclusive Metrics Diff for Current Function			-21	-100.0%	-31	-100.0%	1,560	100.0%	-872	-100.0%
*Parent functions*
block_page_build	0	0.0%	0	0.0%	-1	-3.2%	0	0.0%	0	0.0%
contextual_preprocess	0	0.0%	0	0.0%	1	3.2%	0	0.0%	0	0.0%
Drupal\Core\Asset\CssCollectionRenderer::render	0	0.0%	0	0.0%	-1	-3.2%	0	0.0%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::defaultProviderId	0	0.0%	0	0.0%	1	3.2%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	1	33.3%	-3	-14.3%	-5	-16.1%	848	54.4%	-424	-48.6%
Drupal\Core\Cache\DatabaseBackend::getMultiple	1	33.3%	0	0.0%	-7	-22.6%	384	24.6%	0	0.0%
Drupal\Core\Database\Connection::expandArguments	1	33.3%	-15	-71.4%	-13	-41.9%	336	21.5%	0	0.0%
Drupal\Core\Database\Query\Select::prepareCountQuery	0	0.0%	0	0.0%	-1	-3.2%	0	0.0%	0	0.0%
Drupal\Core\DrupalKernel::initializeContainer	0	0.0%	-2	-9.5%	-3	-9.7%	0	0.0%	0	0.0%
Drupal\Core\Extension\ModuleHandler::alter	0	0.0%	2	9.5%	3	9.7%	0	0.0%	0	0.0%
Drupal\Core\Extension\ModuleHandler::getImplementations	0	0.0%	9	42.9%	-1	-3.2%	0	0.0%	-88	-10.1%
Drupal\Core\Render\Element::children	0	0.0%	-10	-47.6%	3	9.7%	0	0.0%	0	0.0%
Drupal\Core\Render\Element::getVisibleChildren	0	0.0%	0	0.0%	-1	-3.2%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteCompiler::getPathWithoutDefaults	0	0.0%	-3	-14.3%	-7	-22.6%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	0.0%	0	0.0%	-2	-6.5%	-8	-0.5%	-360	-41.3%
Drupal\field\Entity\Field::getSchema	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\field\Entity\FieldInstance::getPropertyNames	0	0.0%	1	4.8%	1	3.2%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	0	0.0%	0	0.0%	1	3.2%	0	0.0%	0	0.0%
system_page_alter	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
theme	0	0.0%	0	0.0%	1	3.2%	0	0.0%	0	0.0%
theme@1	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
theme@2	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%