XHProf: Hierarchical Profiler Report

Diff Report: Run #519e62c02d767: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519e633ddef65: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Symfony\Component\HttpFoundation\HeaderBag::get	Run #519e62c02d767	Run #519e633ddef65	Diff	Diff%
Number of Function Calls	12	12	0	0.0%
Incl. Wall Time (microsec)	137	138	1	0.7%
Incl. Wall Time (microsec) per call	11	12	0	0.7%
Excl. Wall Time (microsec)	102	105	3	2.9%
Incl. CPU (microsecs)	145	153	8	5.5%
Incl. CPU (microsecs) per call	12	13	1	5.5%
Excl. CPU (microsec)	80	86	6	7.5%
Incl. MemUse (bytes)	9,072	9,072	0	0.0%
Incl. MemUse (bytes) per call	756	756	0	0.0%
Excl. MemUse (bytes)	5,048	5,048	0	0.0%
Incl. PeakMemUse (bytes)	5,712	5,712	0	0.0%
Incl. PeakMemUse (bytes) per call	476	476	0	0.0%
Excl. PeakMemUse (bytes)	4,016	4,016	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%	1	0.3%	8	1.3%	0	N/A%	0	N/A%
Exclusive Metrics Diff for Current Function			3	300.0%	6	75.0%	0	N/A%	0	N/A%
*Parent functions*
Symfony\Component\HttpFoundation\Request::createFromGlobals	0	N/A%	1	100.0%	-1	-12.5%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\Response::prepare	0	N/A%	1	100.0%	2	25.0%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\Request::isXmlHttpRequest	0	N/A%	-1	-100.0%	2	25.0%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	0	N/A%	0	0.0%	1	12.5%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\Request::getHost	0	N/A%	0	0.0%	4	50.0%	0	N/A%	0	N/A%
*Child functions*
array_key_exists	0	N/A%	-1	-100.0%	0	0.0%	0	N/A%	0	N/A%
strtolower	0	N/A%	-1	-100.0%	-3	-37.5%	0	N/A%	0	N/A%
count	0	N/A%	0	0.0%	1	12.5%	0	N/A%	0	N/A%
strtr	0	N/A%	0	0.0%	4	50.0%	0	N/A%	0	N/A%