XHProf: Hierarchical Profiler Report

Diff Report: Run #539fd0a78f1b7: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #539fd2b68bc13: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Drupal\Core\Cache\DatabaseBackend::checksumTags	Run #539fd0a78f1b7	Run #539fd2b68bc13	Diff	Diff%
Number of Function Calls	108	108	0	0.0%
Incl. Wall Time (microsec)	7,372	7,496	124	1.7%
Incl. Wall Time (microsec) per call	68	69	1	1.7%
Excl. Wall Time (microsec)	2,608	2,690	82	3.1%
Incl. CPU (microsecs)	6,887	7,069	182	2.6%
Incl. CPU (microsecs) per call	64	65	2	2.6%
Excl. CPU (microsec)	2,217	2,303	86	3.9%
Incl. MemUse (bytes)	83,000	82,984	-16	-0.0%
Incl. MemUse (bytes) per call	769	768	-0	-0.0%
Excl. MemUse (bytes)	-212,168	-212,256	-88	-0.0%
Incl. PeakMemUse (bytes)	121,176	122,800	1,624	1.3%
Incl. PeakMemUse (bytes) per call	1,122	1,137	15	1.3%
Excl. PeakMemUse (bytes)	32,872	32,904	32	0.1%

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\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	124	0.3%	182	0.4%	-16	-0.0%	1,624	0.1%
Exclusive Metrics Diff for Current Function			82	66.1%	86	47.3%	-88	-550.0%	32	2.0%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::prepareItem	0	N/A%	131	105.6%	188	103.3%	-16	-100.0%	1,536	94.6%
Drupal\Core\Cache\DatabaseBackend::prepareItem@1	0	N/A%	-7	-5.6%	-6	-3.3%	0	0.0%	88	5.4%
*Child functions*
drupal_static	0	N/A%	39	31.5%	43	23.6%	0	0.0%	96	5.9%
array_keys	0	N/A%	33	26.6%	26	14.3%	104	650.0%	1,592	98.0%
Drupal\Core\Database\Statement::fetchAllAssoc	0	N/A%	-26	-21.0%	-30	-16.5%	-16	-100.0%	-16	-1.0%
Drupal\Core\Database\Connection::query	0	N/A%	-13	-10.5%	54	29.7%	-16	-100.0%	-72	-4.4%
array_diff	0	N/A%	6	4.8%	0	0.0%	0	0.0%	-8	-0.5%
array_fill_keys	0	N/A%	3	2.4%	3	1.6%	0	0.0%	0	0.0%