XHProf: Hierarchical Profiler Report

Diff Report: Run #51af3d98520b7: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51af430daedb2: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	Run #51af3d98520b7	Run #51af430daedb2	Diff	Diff%
Number of Function Calls	9	9	0	0.0%
Incl. Wall Time (microsec)	1,912	1,876	-36	-1.9%
Incl. Wall Time (microsec) per call	212	208	-4	-1.9%
Excl. Wall Time (microsec)	88	89	1	1.1%
Incl. CPU (microsecs)	1,922	1,885	-37	-1.9%
Incl. CPU (microsecs) per call	214	209	-4	-1.9%
Excl. CPU (microsec)	82	85	3	3.7%
Incl. MemUse (bytes)	153,360	153,360	0	0.0%
Incl. MemUse (bytes) per call	17,040	17,040	0	0.0%
Excl. MemUse (bytes)	-16,328	-16,328	0	0.0%
Incl. PeakMemUse (bytes)	48,704	48,704	0	0.0%
Incl. PeakMemUse (bytes) per call	5,412	5,412	0	0.0%
Excl. PeakMemUse (bytes)	192	192	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%	-36	-2.7%	-37	-2.0%	0	N/A%	0	N/A%
Exclusive Metrics Diff for Current Function			1	2.8%	3	8.1%	0	N/A%	0	N/A%
*Parent functions*
Drupal\Core\ContentNegotiation::getContentType	0	N/A%	-44	-122.2%	-44	-118.9%	0	N/A%	0	N/A%
Drupal\Core\Routing\MimeTypeMatcher::filter	0	N/A%	8	22.2%	7	18.9%	0	N/A%	0	N/A%
*Child functions*
Symfony\Component\HttpFoundation\AcceptHeader::fromString	0	N/A%	-18	-50.0%	-18	-48.6%	0	N/A%	0	N/A%
Symfony\Component\ClassLoader\ClassLoader::loadClass	0	N/A%	-16	-44.4%	-17	-45.9%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\AcceptHeader::all	0	N/A%	-2	-5.6%	-2	-5.4%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\HeaderBag::get	0	N/A%	-1	-2.8%	-1	-2.7%	0	N/A%	0	N/A%
array_keys	0	N/A%	0	0.0%	-2	-5.4%	0	N/A%	0	N/A%