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\system\Controller\SystemController::setLinkActiveClass	Run #5392041970f3f	Run #539201f8938f4	Diff	Diff%
Number of Function Calls	1	1	0	0.0%
Incl. Wall Time (microsec)	826	773	-53	-6.4%
Incl. Wall Time (microsec) per call	826	773	-53	-6.4%
Excl. Wall Time (microsec)	477	464	-13	-2.7%
Incl. CPU (microsecs)	828	776	-52	-6.3%
Incl. CPU (microsecs) per call	828	776	-52	-6.3%
Excl. CPU (microsec)	380	367	-13	-3.4%
Incl. MemUse (bytes)	7,316	7,316	0	0.0%
Incl. MemUse (bytes) per call	7,316	7,316	0	0.0%
Excl. MemUse (bytes)	2,532	2,532	0	0.0%
Incl. PeakMemUse (bytes)	5,804	5,768	-36	-0.6%
Incl. PeakMemUse (bytes) per call	5,804	5,768	-36	-0.6%
Excl. PeakMemUse (bytes)	2,984	2,928	-56	-1.9%

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\system\Controller\SystemController::setLinkActiveClass	0	N/A%	-53	-3.6%	-52	-1.9%	0	0.0%	-36	-0.1%
Exclusive Metrics Diff for Current Function			-13	-24.5%	-13	-25.0%	0	N/A%	-56	-155.6%
*Parent function*
call_user_func_array	0	N/A%	-53	-100.0%	-52	-100.0%	0	N/A%	-36	-100.0%
*Child functions*
DOMDocument::loadHTML	0	N/A%	-21	-39.6%	-21	-40.4%	0	N/A%	0	0.0%
strlen	0	N/A%	-19	-35.8%	-17	-32.7%	0	N/A%	0	0.0%
DOMNodeList::item	0	N/A%	1	1.9%	-3	-5.8%	0	N/A%	20	55.6%
DOMElement::hasAttribute	0	N/A%	-1	-1.9%	6	11.5%	0	N/A%	0	0.0%
DOMDocument::getElementsByTagName	0	N/A%	0	0.0%	-2	-3.8%	0	N/A%	0	0.0%
DOMDocument::__construct	0	N/A%	0	0.0%	-2	-3.8%	0	N/A%	0	0.0%
substr	0	N/A%	0	0.0%	1	1.9%	0	N/A%	0	0.0%
strpos	0	N/A%	0	0.0%	-1	-1.9%	0	N/A%	0	0.0%