XHProf: Hierarchical Profiler Report

Diff Report: Run #519d9d94433aa: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d9cf28420e: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	Run #519d9d94433aa	Run #519d9cf28420e	Diff	Diff%
Number of Function Calls	3	3	0	0.0%
Incl. Wall Time (microsec)	731	729	-2	-0.3%
Incl. Wall Time (microsec) per call	244	243	-1	-0.3%
Excl. Wall Time (microsec)	31	33	2	6.5%
Incl. CPU (microsecs)	736	731	-5	-0.7%
Incl. CPU (microsecs) per call	245	244	-2	-0.7%
Excl. CPU (microsec)	31	27	-4	-12.9%
Incl. MemUse (bytes)	143,280	143,224	-56	-0.0%
Incl. MemUse (bytes) per call	47,760	47,741	-19	-0.0%
Excl. MemUse (bytes)	-352	-368	-16	-4.5%
Incl. PeakMemUse (bytes)	146,808	146,832	24	0.0%
Incl. PeakMemUse (bytes) per call	48,936	48,944	8	0.0%
Excl. PeakMemUse (bytes)	184	184	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%	-2	-0.1%	-5	-0.5%	-56	-0.1%	24	0.0%
Exclusive Metrics Diff for Current Function			2	100.0%	-4	-80.0%	-16	-28.6%	0	0.0%
*Parent function*
Drupal\Core\ContentNegotiation::getContentType	0	N/A%	-2	-100.0%	-5	-100.0%	-56	-100.0%	24	100.0%
*Child functions*
Symfony\Component\ClassLoader\ClassLoader::loadClass	0	N/A%	-9	-450.0%	-8	-160.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeader::fromString	0	N/A%	6	300.0%	6	120.0%	-40	-71.4%	24	100.0%
Symfony\Component\HttpFoundation\AcceptHeader::all	0	N/A%	-1	-50.0%	-1	-20.0%	0	0.0%	0	0.0%
array_keys	0	N/A%	0	0.0%	1	20.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\HeaderBag::get	0	N/A%	0	0.0%	1	20.0%	0	0.0%	0	0.0%