XHProf: Hierarchical Profiler Report

Diff Report: Run #53923e49d2b58: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #53923d861ff11: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	Run #53923e49d2b58	Run #53923d861ff11	Diff	Diff%
Number of Function Calls	6	6	0	0.0%
Incl. Wall Time (microsec)	725	720	-5	-0.7%
Incl. Wall Time (microsec) per call	121	120	-1	-0.7%
Excl. Wall Time (microsec)	55	61	6	10.9%
Incl. CPU (microsecs)	732	728	-4	-0.5%
Incl. CPU (microsecs) per call	122	121	-1	-0.5%
Excl. CPU (microsec)	44	48	4	9.1%
Incl. MemUse (bytes)	29,636	29,636	0	0.0%
Incl. MemUse (bytes) per call	4,939	4,939	0	0.0%
Excl. MemUse (bytes)	-180	-180	0	0.0%
Incl. PeakMemUse (bytes)	25,264	25,264	0	0.0%
Incl. PeakMemUse (bytes) per call	4,211	4,211	0	0.0%
Excl. PeakMemUse (bytes)	1,528	1,528	0	0.0%

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*
Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	0	N/A%	-5	-0.3%	-4	-0.4%	0	0.0%	0	0.0%
Exclusive Metrics Diff for Current Function			6	120.0%	4	100.0%	0	N/A%	0	N/A%
*Parent functions*
Drupal\Core\Routing\AcceptHeaderMatcher::filter	0	N/A%	-5	-100.0%	-5	-125.0%	0	N/A%	0	N/A%
Drupal\Core\ContentNegotiation::getContentType	0	N/A%	0	0.0%	1	25.0%	0	N/A%	0	N/A%
*Child functions*
Symfony\Component\HttpFoundation\AcceptHeader::fromString	0	N/A%	-12	-240.0%	-11	-275.0%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\AcceptHeader::all	0	N/A%	-3	-60.0%	-5	-125.0%	0	N/A%	0	N/A%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass	0	N/A%	3	60.0%	3	75.0%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\HeaderBag::get	0	N/A%	1	20.0%	5	125.0%	0	N/A%	0	N/A%
array_keys	0	N/A%	0	0.0%	0	0.0%	0	N/A%	0	N/A%