XHProf: Hierarchical Profiler Report

Diff Report: Run #5589b704ad974: XHProf Run (Namespace=drupal-perf-stefanr)
vs.
Run #5589b6f75b296: XHProf Run (Namespace=drupal-perf-stefanr)
Tip: Click a function name below to drill down.

Drupal\Core\Cache\CacheableMetadata::merge	Run #5589b704ad974	Run #5589b6f75b296	Diff	Diff%
Number of Function Calls	13,000	13,000	0	0.0%
Incl. Wall Time (microsec)	152,705	162,310	9,605	6.3%
Incl. Wall Time (microsec) per call	12	12	1	6.3%
Excl. Wall Time (microsec)	51,637	55,298	3,661	7.1%
Incl. MemUse (bytes)	4,395,200	4,395,200	0	0.0%
Incl. MemUse (bytes) per call	338	338	0	0.0%
Excl. MemUse (bytes)	2,578,400	2,578,400	0	0.0%
Incl. PeakMemUse (bytes)	559,200	454,400	-104,800	-18.7%
Incl. PeakMemUse (bytes) per call	43	35	-8	-18.7%
Excl. PeakMemUse (bytes)	380,800	274,400	-106,400	-27.9%

Function Name	Calls Diff	Calls Diff%	Incl. Wall Diff (microsec)	IWall Diff%	Incl. MemUse Diff (bytes)	IMemUse Diff%	Incl. PeakMemUse Diff (bytes)	IPeakMemUse Diff%
*Current Function*
Drupal\Core\Cache\CacheableMetadata::merge	0	N/A%	9,605	0.5%	0	0.0%	-104,800	-1.7%
Exclusive Metrics Diff for Current Function			3,661	38.1%	0	N/A%	-106,400	-101.5%
*Parent functions*
Drupal\Core\Render\BubbleableMetadata::merge	0	N/A%	6,315	65.7%	0	N/A%	-96,000	-91.6%
Drupal\Core\Cache\CacheableResponse::addCacheableDependency	0	N/A%	3,045	31.7%	0	N/A%	1,600	1.5%
Drupal\Core\Render\Renderer::addCacheableDependency	0	N/A%	133	1.4%	0	N/A%	-10,400	-9.9%
Drupal\Core\Menu\MenuLinkTree::build	0	N/A%	68	0.7%	0	N/A%	0	0.0%
Drupal\Core\Field\Plugin\Field\FieldFormatter\EntityReferenceFormatterBase::view	0	N/A%	38	0.4%	0	N/A%	0	0.0%
Drupal\Core\Render\Renderer::doRender@1	0	N/A%	17	0.2%	0	N/A%	0	0.0%
Drupal\Core\Menu\MenuLinkTree::buildItems	0	N/A%	-15	-0.2%	0	N/A%	0	0.0%
Drupal\Core\Render\Element\Link::preRenderLink	0	N/A%	4	0.0%	0	N/A%	0	0.0%
*Child functions*
Drupal\Core\Cache\Cache::mergeContexts	0	N/A%	3,383	35.2%	0	N/A%	-3,200	-3.1%
Drupal\Core\Cache\Cache::mergeTags	0	N/A%	2,561	26.7%	0	N/A%	4,800	4.6%