XHProf: Hierarchical Profiler Report

Diff Report: Run #519d44ffb3845: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d45a7cd8f5: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Symfony\Component\HttpFoundation\HeaderBag::get	Run #519d44ffb3845	Run #519d45a7cd8f5	Diff	Diff%
Number of Function Calls	12	12	0	0.0%
Incl. Wall Time (microsec)	240	245	5	2.1%
Incl. Wall Time (microsec) per call	20	20	0	2.1%
Excl. Wall Time (microsec)	184	191	7	3.8%
Incl. CPU (microsecs)	264	264	0	0.0%
Incl. CPU (microsecs) per call	22	22	0	0.0%
Excl. CPU (microsec)	161	166	5	3.1%
Incl. MemUse (bytes)	5,412	5,412	0	0.0%
Incl. MemUse (bytes) per call	451	451	0	0.0%
Excl. MemUse (bytes)	3,052	3,052	0	0.0%
Incl. PeakMemUse (bytes)	4,828	4,828	0	0.0%
Incl. PeakMemUse (bytes) per call	402	402	0	0.0%
Excl. PeakMemUse (bytes)	3,180	3,180	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\HeaderBag::get	0	N/A%	5	0.2%	0	0.0%	0	N/A%	0	N/A%
Exclusive Metrics Diff for Current Function			7	140.0%	5	N/A%	0	N/A%	0	N/A%
*Parent functions*
Symfony\Component\HttpFoundation\Request::createFromGlobals	0	N/A%	2	40.0%	2	N/A%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\Request::isXmlHttpRequest	0	N/A%	1	20.0%	0	N/A%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	0	N/A%	1	20.0%	0	N/A%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\Request::getHost	0	N/A%	1	20.0%	-1	N/A%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\Response::prepare	0	N/A%	0	0.0%	-1	N/A%	0	N/A%	0	N/A%
*Child functions*
array_key_exists	0	N/A%	-1	-20.0%	-2	N/A%	0	N/A%	0	N/A%
strtr	0	N/A%	-1	-20.0%	-2	N/A%	0	N/A%	0	N/A%
count	0	N/A%	0	0.0%	-1	N/A%	0	N/A%	0	N/A%
strtolower	0	N/A%	0	0.0%	0	N/A%	0	N/A%	0	N/A%