XHProf: Hierarchical Profiler Report

Diff Report: Run #51ec623000e0c: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec66a5a877d: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	Run #51ec623000e0c	Run #51ec66a5a877d	Diff	Diff%
Number of Function Calls	20	20	0	0.0%
Incl. Wall Time (microsec)	2,504	2,526	22	0.9%
Incl. Wall Time (microsec) per call	125	126	1	0.9%
Excl. Wall Time (microsec)	135	136	1	0.7%
Incl. CPU (microsecs)	2,520	2,545	25	1.0%
Incl. CPU (microsecs) per call	126	127	1	1.0%
Excl. CPU (microsec)	107	109	2	1.9%
Incl. MemUse (bytes)	58,424	58,424	0	0.0%
Incl. MemUse (bytes) per call	2,921	2,921	0	0.0%
Excl. MemUse (bytes)	-15,872	-15,872	0	0.0%
Incl. PeakMemUse (bytes)	53,272	53,272	0	0.0%
Incl. PeakMemUse (bytes) per call	2,664	2,664	0	0.0%
Excl. PeakMemUse (bytes)	2,832	2,832	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%	22	0.9%	25	0.7%	0	0.0%	0	0.0%
Exclusive Metrics Diff for Current Function			1	4.5%	2	8.0%	0	N/A%	0	N/A%
*Parent functions*
Drupal\Core\Routing\MimeTypeMatcher::filter	0	N/A%	22	100.0%	24	96.0%	0	N/A%	0	N/A%
Drupal\Core\ContentNegotiation::getContentType	0	N/A%	0	0.0%	1	4.0%	0	N/A%	0	N/A%
*Child functions*
Symfony\Component\HttpFoundation\AcceptHeader::fromString	0	N/A%	25	113.6%	26	104.0%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\AcceptHeader::all	0	N/A%	-15	-68.2%	-12	-48.0%	0	N/A%	0	N/A%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass	0	N/A%	9	40.9%	8	32.0%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\HeaderBag::get	0	N/A%	2	9.1%	-1	-4.0%	0	N/A%	0	N/A%
array_keys	0	N/A%	0	0.0%	2	8.0%	0	N/A%	0	N/A%