XHProf: Hierarchical Profiler Report

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

Regression/Improvement summary for array_keys

array_keys	Run #52f5c11235c73	Run #52f5c0b2e882a	Diff	Diff%
Number of Function Calls	651	650	-1	-0.2%
Incl. Wall Time (microsec)	353	384	31	8.8%
Incl. Wall Time (microsec) per call	1	1	0	8.9%
Excl. Wall Time (microsec)	353	384	31	8.8%
Incl. CPU (microsecs)	924	962	38	4.1%
Incl. CPU (microsecs) per call	1	1	0	4.3%
Excl. CPU (microsec)	924	962	38	4.1%
Incl. MemUse (bytes)	277,896	277,592	-304	-0.1%
Incl. MemUse (bytes) per call	427	427	0	0.0%
Excl. MemUse (bytes)	277,896	277,592	-304	-0.1%
Incl. PeakMemUse (bytes)	62,736	63,104	368	0.6%
Incl. PeakMemUse (bytes) per call	96	97	1	0.7%
Excl. PeakMemUse (bytes)	62,736	63,104	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*
Drupal\Core\Extension\ModuleHandler::alter	0	0.0%	15	48.4%	18	47.4%	8	2.6%	8	2.2%
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	0.0%	8	25.8%	7	18.4%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	0.0%	7	22.6%	9	23.7%	-16	-5.3%	-8	-2.2%
Drupal\Core\Database\Connection::expandArguments	0	0.0%	4	12.9%	6	15.8%	0	0.0%	48	13.0%
Drupal\Core\Render\Element::children	0	0.0%	-4	-12.9%	9	23.7%	24	7.9%	400	108.7%
Drupal\Core\Routing\RouteCompiler::getPathWithoutDefaults	0	0.0%	2	6.5%	-3	-7.9%	0	0.0%	0	0.0%
theme@1	0	0.0%	-1	-3.2%	-2	-5.3%	0	0.0%	0	0.0%
contextual_preprocess	-1	-100.0%	-1	-3.2%	-6	-15.8%	-336	-110.5%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	0.0%	-1	-3.2%	2	5.3%	16	5.3%	0	0.0%
theme	0	0.0%	1	3.2%	0	0.0%	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\DrupalKernel::initializeContainer	0	0.0%	0	0.0%	2	5.3%	0	0.0%	0	0.0%
theme@2	0	0.0%	0	0.0%	0	0.0%	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\Asset\CssCollectionRenderer::render	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\Authentication\AuthenticationManager::defaultProviderId	0	0.0%	0	0.0%	-2	-5.3%	0	0.0%	0	0.0%
system_page_alter	0	0.0%	0	0.0%	-1	-2.6%	0	0.0%	0	0.0%
block_page_build	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%