XHProf: Hierarchical Profiler Report

Diff Report: Run #52f5c0b2e882a: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5c11235c73: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Regression/Improvement summary for array_keys

array_keys	Run #52f5c0b2e882a	Run #52f5c11235c73	Diff	Diff%
Number of Function Calls	650	651	1	0.2%
Incl. Wall Time (microsec)	384	353	-31	-8.1%
Incl. Wall Time (microsec) per call	1	1	-0	-8.2%
Excl. Wall Time (microsec)	384	353	-31	-8.1%
Incl. CPU (microsecs)	962	924	-38	-4.0%
Incl. CPU (microsecs) per call	1	1	-0	-4.1%
Excl. CPU (microsec)	962	924	-38	-4.0%
Incl. MemUse (bytes)	277,592	277,896	304	0.1%
Incl. MemUse (bytes) per call	427	427	-0	-0.0%
Excl. MemUse (bytes)	277,592	277,896	304	0.1%
Incl. PeakMemUse (bytes)	63,104	62,736	-368	-0.6%
Incl. PeakMemUse (bytes) per call	97	96	-1	-0.7%
Excl. PeakMemUse (bytes)	63,104	62,736	-368	-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%	-31	-7.5%	-38	-16.0%	304	0.7%	-368	-0.8%
Exclusive Metrics Diff for Current Function			-31	-100.0%	-38	-100.0%	304	100.0%	-368	-100.0%
*Parent functions*
contextual_preprocess	1	100.0%	1	3.2%	6	15.8%	336	110.5%	0	0.0%
Drupal\Core\Render\Element::children	0	0.0%	4	12.9%	-9	-23.7%	-24	-7.9%	-400	-108.7%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	0.0%	-7	-22.6%	-9	-23.7%	16	5.3%	8	2.2%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	0.0%	1	3.2%	-2	-5.3%	-16	-5.3%	0	0.0%
Drupal\Core\Extension\ModuleHandler::alter	0	0.0%	-15	-48.4%	-18	-47.4%	-8	-2.6%	-8	-2.2%
system_page_alter	0	0.0%	0	0.0%	1	2.6%	0	0.0%	0	0.0%
Drupal\Core\Render\Element::getVisibleChildren	0	0.0%	0	0.0%	-1	-2.6%	0	0.0%	0	0.0%
Drupal\Core\Asset\CssCollectionRenderer::render	0	0.0%	0	0.0%	1	2.6%	0	0.0%	0	0.0%
theme@2	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
theme@1	0	0.0%	1	3.2%	2	5.3%	0	0.0%	0	0.0%
block_page_build	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
theme	0	0.0%	-1	-3.2%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\DrupalKernel::initializeContainer	0	0.0%	0	0.0%	-2	-5.3%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	0.0%	-8	-25.8%	-7	-18.4%	0	0.0%	0	0.0%
Drupal\Core\Extension\ModuleHandler::getImplementations	0	0.0%	0	0.0%	3	7.9%	0	0.0%	80	21.7%
Drupal\Core\Routing\RouteCompiler::getPathWithoutDefaults	0	0.0%	-2	-6.5%	3	7.9%	0	0.0%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::defaultProviderId	0	0.0%	0	0.0%	2	5.3%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	0	0.0%	-1	-3.2%	-2	-5.3%	0	0.0%	0	0.0%
Drupal\Core\Database\Connection::expandArguments	0	0.0%	-4	-12.9%	-6	-15.8%	0	0.0%	-48	-13.0%