XHProf: Hierarchical Profiler Report

Diff Report: Run #539205a48c548: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539206aca7ae8: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

serialize	Run #539205a48c548	Run #539206aca7ae8	Diff	Diff%
Number of Function Calls	14	14	0	0.0%
Incl. Wall Time (microsec)	2,896	2,771	-125	-4.3%
Incl. Wall Time (microsec) per call	207	198	-9	-4.3%
Excl. Wall Time (microsec)	1,199	1,132	-67	-5.6%
Incl. CPU (microsecs)	2,916	2,788	-128	-4.4%
Incl. CPU (microsecs) per call	208	199	-9	-4.4%
Excl. CPU (microsec)	1,207	1,136	-71	-5.9%
Incl. MemUse (bytes)	64,860	64,968	108	0.2%
Incl. MemUse (bytes) per call	4,633	4,641	8	0.2%
Excl. MemUse (bytes)	32,052	32,156	104	0.3%
Incl. PeakMemUse (bytes)	143,088	126,648	-16,440	-11.5%
Incl. PeakMemUse (bytes) per call	10,221	9,046	-1,174	-11.5%
Excl. PeakMemUse (bytes)	125,580	100,004	-25,576	-20.4%

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*
serialize	0	N/A%	-125	-2.7%	-128	-3.4%	108	0.1%	-16,440	-17.0%
Exclusive Metrics Diff for Current Function			-67	-53.6%	-71	-55.5%	104	96.3%	-25,576	-155.6%
*Parent functions*
Drupal\Component\Serialization\PhpSerialize::encode	0	N/A%	-116	-92.8%	-117	-91.4%	28	25.9%	-17,312	-105.3%
Drupal\Core\Asset\CssCollectionOptimizer::generateHash	0	N/A%	-8	-6.4%	-9	-7.0%	0	0.0%	56	0.3%
Drupal\Core\Asset\JsCollectionOptimizer::generateHash	0	N/A%	-1	-0.8%	-1	-0.8%	80	74.1%	816	5.0%
Drupal\menu_link\MenuTree::doBuildTree	0	N/A%	0	0.0%	-1	-0.8%	0	0.0%	0	0.0%
*Child functions*
Drupal\Core\DependencyInjection\DependencySerialization::__sleep	0	N/A%	-36	-28.8%	-41	-32.0%	4	3.7%	6,728	40.9%
Drupal\entity\Entity\EntityFormDisplay::__sleep	0	N/A%	-25	-20.0%	-18	-14.1%	0	0.0%	192	1.2%
Drupal\Core\Entity\ContentEntityBase::__sleep	0	N/A%	3	2.4%	2	1.6%	0	0.0%	2,216	13.5%