XHProf: Hierarchical Profiler Report

Diff Report: Run #539fd2109980d: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #539fd0a78f1b7: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Drupal\Core\Cache\DatabaseBackend::checksumTags	Run #539fd2109980d	Run #539fd0a78f1b7	Diff	Diff%
Number of Function Calls	108	108	0	0.0%
Incl. Wall Time (microsec)	7,545	7,372	-173	-2.3%
Incl. Wall Time (microsec) per call	70	68	-2	-2.3%
Excl. Wall Time (microsec)	2,764	2,608	-156	-5.6%
Incl. CPU (microsecs)	7,058	6,887	-171	-2.4%
Incl. CPU (microsecs) per call	65	64	-2	-2.4%
Excl. CPU (microsec)	2,396	2,217	-179	-7.5%
Incl. MemUse (bytes)	83,000	83,000	0	0.0%
Incl. MemUse (bytes) per call	769	769	0	0.0%
Excl. MemUse (bytes)	-212,168	-212,168	0	0.0%
Incl. PeakMemUse (bytes)	121,176	121,176	0	0.0%
Incl. PeakMemUse (bytes) per call	1,122	1,122	0	0.0%
Excl. PeakMemUse (bytes)	32,872	32,872	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*
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	-173	-2.5%	-171	-2.7%	0	N/A%	0	N/A%
Exclusive Metrics Diff for Current Function			-156	-90.2%	-179	-104.7%	0	N/A%	0	N/A%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::prepareItem	0	N/A%	-176	-101.7%	-170	-99.4%	0	N/A%	0	N/A%
Drupal\Core\Cache\DatabaseBackend::prepareItem@1	0	N/A%	3	1.7%	-1	-0.6%	0	N/A%	0	N/A%
*Child functions*
Drupal\Core\Database\Statement::fetchAllAssoc	0	N/A%	54	31.2%	64	37.4%	0	N/A%	0	N/A%
Drupal\Core\Database\Connection::query	0	N/A%	53	30.6%	58	33.9%	0	N/A%	0	N/A%
array_keys	0	N/A%	-51	-29.5%	-47	-27.5%	0	N/A%	0	N/A%
drupal_static	0	N/A%	-41	-23.7%	-51	-29.8%	0	N/A%	0	N/A%
array_diff	0	N/A%	-39	-22.5%	-24	-14.0%	0	N/A%	0	N/A%
array_fill_keys	0	N/A%	7	4.0%	8	4.7%	0	N/A%	0	N/A%