XHProf: Hierarchical Profiler Report

Diff Report: Run #52f5cbc19a0d8: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5cb0964fa0: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Drupal\Component\Utility\Crypt::randomBytes	Run #52f5cbc19a0d8	Run #52f5cb0964fa0	Diff	Diff%
Number of Function Calls	21	21	0	0.0%
Incl. Wall Time (microsec)	1,010	963	-47	-4.7%
Incl. Wall Time (microsec) per call	48	46	-2	-4.7%
Excl. Wall Time (microsec)	315	251	-64	-20.3%
Incl. CPU (microsecs)	1,026	986	-40	-3.9%
Incl. CPU (microsecs) per call	49	47	-2	-3.9%
Excl. CPU (microsec)	254	223	-31	-12.2%
Incl. MemUse (bytes)	17,368	17,352	-16	-0.1%
Incl. MemUse (bytes) per call	827	826	-1	-0.1%
Excl. MemUse (bytes)	-77,768	-77,600	168	0.2%
Incl. PeakMemUse (bytes)	158,392	157,688	-704	-0.4%
Incl. PeakMemUse (bytes) per call	7,542	7,509	-34	-0.4%
Excl. PeakMemUse (bytes)	72,056	71,712	-344	-0.5%

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*
Drupal\Component\Utility\Crypt::randomBytes	0	N/A%	-47	-50.5%	-40	-20.5%	-16	-0.1%	-704	-2.4%
Exclusive Metrics Diff for Current Function			-64	-136.2%	-31	-77.5%	168	1050.0%	-344	-48.9%
*Parent functions*
Drupal\Component\Uuid\Php::generate	0	N/A%	-46	-97.9%	-39	-97.5%	-16	-100.0%	-832	-118.2%
Drupal\Component\Utility\Crypt::randomStringHashed	0	N/A%	-1	-2.1%	-1	-2.5%	0	0.0%	128	18.2%
*Child functions*
fopen	0	N/A%	12	25.5%	-10	-25.0%	0	0.0%	0	0.0%
fread	0	N/A%	6	12.8%	6	15.0%	0	0.0%	8	1.1%
substr	0	N/A%	-2	-4.3%	-7	-17.5%	-160	-1000.0%	-344	-48.9%
print_r	0	N/A%	1	2.1%	3	7.5%	-24	-150.0%	-24	-3.4%
fclose	0	N/A%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
max	0	N/A%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
strlen	0	N/A%	0	0.0%	-2	-5.0%	0	0.0%	0	0.0%
getmypid	0	N/A%	0	0.0%	1	2.5%	0	0.0%	0	0.0%