XHProf: Hierarchical Profiler Report

Diff Report: Run #51978d4d92dd9: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51978cc86c728: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Symfony\Component\HttpFoundation\HeaderBag::get	Run #51978d4d92dd9	Run #51978cc86c728	Diff	Diff%
Number of Function Calls	12	12	0	0.0%
Incl. Wall Time (microsec)	157	150	-7	-4.5%
Incl. Wall Time (microsec) per call	13	13	-1	-4.5%
Excl. Wall Time (microsec)	126	124	-2	-1.6%
Incl. CPU (microsecs)	171	165	-6	-3.5%
Incl. CPU (microsecs) per call	14	14	-1	-3.5%
Excl. CPU (microsec)	99	101	2	2.0%
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	5,040	-8	-0.2%
Incl. PeakMemUse (bytes)	4,832	4,800	-32	-0.7%
Incl. PeakMemUse (bytes) per call	403	400	-3	-0.7%
Excl. PeakMemUse (bytes)	3,336	3,296	-40	-1.2%

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%	-7	-2.8%	-6	-5.0%	0	0.0%	-32	-0.1%
Exclusive Metrics Diff for Current Function			-2	-28.6%	2	33.3%	-8	N/A%	-40	-125.0%
*Parent functions*
Symfony\Component\HttpFoundation\Request::isXmlHttpRequest	0	N/A%	-5	-71.4%	-5	-83.3%	0	N/A%	0	0.0%
Symfony\Component\HttpFoundation\Request::getHost	0	N/A%	-2	-28.6%	0	0.0%	0	N/A%	-32	-100.0%
Symfony\Component\HttpFoundation\Response::prepare	0	N/A%	0	0.0%	0	0.0%	0	N/A%	0	0.0%
Symfony\Component\HttpFoundation\Request::getAcceptableContentTypes	0	N/A%	0	0.0%	0	0.0%	0	N/A%	0	0.0%
Symfony\Component\HttpFoundation\Request::createFromGlobals	0	N/A%	0	0.0%	-1	-16.7%	0	N/A%	0	0.0%
*Child functions*
strtr	0	N/A%	-4	-57.1%	-6	-100.0%	8	N/A%	8	25.0%
strtolower	0	N/A%	-1	-14.3%	-2	-33.3%	0	N/A%	0	0.0%
count	0	N/A%	0	0.0%	-1	-16.7%	0	N/A%	0	0.0%
array_key_exists	0	N/A%	0	0.0%	1	16.7%	0	N/A%	0	0.0%