XHProf: Hierarchical Profiler Report

Diff Report: Run #519fe7ae1f6cc: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fe8bb569af: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Symfony\Component\HttpFoundation\HeaderBag::get	Run #519fe7ae1f6cc	Run #519fe8bb569af	Diff	Diff%
Number of Function Calls	13	13	0	0.0%
Incl. Wall Time (microsec)	225	235	10	4.4%
Incl. Wall Time (microsec) per call	17	18	1	4.4%
Excl. Wall Time (microsec)	169	170	1	0.6%
Incl. CPU (microsecs)	243	254	11	4.5%
Incl. CPU (microsecs) per call	19	20	1	4.5%
Excl. CPU (microsec)	143	146	3	2.1%
Incl. MemUse (bytes)	9,024	9,024	0	0.0%
Incl. MemUse (bytes) per call	694	694	0	0.0%
Excl. MemUse (bytes)	4,952	4,952	0	0.0%
Incl. PeakMemUse (bytes)	7,856	7,856	0	0.0%
Incl. PeakMemUse (bytes) per call	604	604	0	0.0%
Excl. PeakMemUse (bytes)	5,504	5,504	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%	10	0.8%	11	2.1%	0	N/A%	0	N/A%
Exclusive Metrics Diff for Current Function			1	10.0%	3	27.3%	0	N/A%	0	N/A%
*Parent functions*
Symfony\Component\HttpFoundation\Request::getHost	0	N/A%	8	80.0%	11	100.0%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\Response::prepare	0	N/A%	3	30.0%	3	27.3%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\Request::isXmlHttpRequest	0	N/A%	-1	-10.0%	-2	-18.2%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	0	N/A%	0	0.0%	0	0.0%	0	N/A%	0	N/A%
Symfony\Component\HttpFoundation\Request::createFromGlobals	0	N/A%	0	0.0%	-1	-9.1%	0	N/A%	0	N/A%
*Child functions*
strtolower	0	N/A%	8	80.0%	8	72.7%	0	N/A%	0	N/A%
strtr	0	N/A%	2	20.0%	2	18.2%	0	N/A%	0	N/A%
array_key_exists	0	N/A%	-1	-10.0%	-3	-27.3%	0	N/A%	0	N/A%
count	0	N/A%	0	0.0%	1	9.1%	0	N/A%	0	N/A%