XHProf: Hierarchical Profiler Report

Diff Report: Run #5198b38f0f1d5: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198b3cd5c9c1: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	Run #5198b38f0f1d5	Run #5198b3cd5c9c1	Diff	Diff%
Number of Function Calls	1	1	0	0.0%
Incl. Wall Time (microsec)	224	246	22	9.8%
Incl. Wall Time (microsec) per call	224	246	22	9.8%
Excl. Wall Time (microsec)	23	24	1	4.3%
Incl. CPU (microsecs)	226	247	21	9.3%
Incl. CPU (microsecs) per call	226	247	21	9.3%
Excl. CPU (microsec)	17	18	1	5.9%
Incl. MemUse (bytes)	43,960	43,960	0	0.0%
Incl. MemUse (bytes) per call	43,960	43,960	0	0.0%
Excl. MemUse (bytes)	1,040	1,040	0	0.0%
Incl. PeakMemUse (bytes)	20,080	19,856	-224	-1.1%
Incl. PeakMemUse (bytes) per call	20,080	19,856	-224	-1.1%
Excl. PeakMemUse (bytes)	1,264	1,264	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	4.8%	21	7.6%	0	0.0%	-224	-0.6%
Exclusive Metrics Diff for Current Function			1	4.5%	1	4.8%	0	N/A%	0	0.0%
*Parent function*
Drupal\Core\ContentNegotiation::getContentType	0	N/A%	22	100.0%	21	100.0%	0	N/A%	-224	-100.0%
*Child functions*
Symfony\Component\HttpFoundation\AcceptHeader::fromString	0	N/A%	13	59.1%	12	57.1%	0	N/A%	-224	-100.0%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass	0	N/A%	4	18.2%	4	19.0%	0	N/A%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeader::all	0	N/A%	3	13.6%	4	19.0%	0	N/A%	0	0.0%
Symfony\Component\HttpFoundation\HeaderBag::get	0	N/A%	1	4.5%	1	4.8%	0	N/A%	0	0.0%
array_keys	0	N/A%	0	0.0%	-1	-4.8%	0	N/A%	0	0.0%