XHProf: Hierarchical Profiler Report

Diff Report: Run #5392041970f3f: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539201f8938f4: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

drupal_render_collect_post_render_cache	Run #5392041970f3f	Run #539201f8938f4	Diff	Diff%
Number of Function Calls	31	32	1	3.2%
Incl. Wall Time (microsec)	8,363	8,251	-112	-1.3%
Incl. Wall Time (microsec) per call	270	258	-12	-4.4%
Excl. Wall Time (microsec)	389	411	22	5.7%
Incl. CPU (microsecs)	8,395	8,294	-101	-1.2%
Incl. CPU (microsecs) per call	271	259	-12	-4.3%
Excl. CPU (microsec)	337	356	19	5.6%
Incl. MemUse (bytes)	62,504	62,584	80	0.1%
Incl. MemUse (bytes) per call	2,016	1,956	-61	-3.0%
Excl. MemUse (bytes)	6,796	6,800	4	0.1%
Incl. PeakMemUse (bytes)	6,296	6,716	420	6.7%
Incl. PeakMemUse (bytes) per call	203	210	7	3.3%
Excl. PeakMemUse (bytes)	3,084	3,228	144	4.7%

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*
drupal_render_collect_post_render_cache	1	50.0%	-112	-7.6%	-101	-3.8%	80	0.1%	420	0.7%
Exclusive Metrics Diff for Current Function			22	19.6%	19	18.8%	4	5.0%	144	34.3%
*Parent functions*
drupal_render	0	0.0%	-132	-117.9%	-132	-130.7%	4	5.0%	0	0.0%
drupal_render@5	1	100.0%	15	13.4%	17	16.8%	76	95.0%	380	90.5%
drupal_render@2	0	0.0%	8	7.1%	15	14.9%	0	0.0%	40	9.5%
drupal_render@4	0	0.0%	-4	-3.6%	-2	-2.0%	0	0.0%	0	0.0%
drupal_render@3	0	0.0%	2	1.8%	4	4.0%	0	0.0%	0	0.0%
drupal_render@1	0	0.0%	-1	-0.9%	-3	-3.0%	0	0.0%	0	0.0%
*Child functions*
drupal_render_collect_post_render_cache@1	0	0.0%	-139	-124.1%	-136	-134.7%	4	5.0%	40	9.5%
Drupal\Core\Render\Element::children	1	100.0%	6	5.4%	17	16.8%	72	90.0%	236	56.2%
Drupal\Component\Utility\NestedArray::mergeDeep	0	0.0%	-1	-0.9%	-1	-1.0%	0	0.0%	0	0.0%