XHProf: Hierarchical Profiler Report

Diff Report: Run #517dc41118628: XHProf Run (Namespace=drupal-perf-fabianx)
vs.
Run #517dc23f63001: XHProf Run (Namespace=drupal-perf-fabianx)
Tip: Click a function name below to drill down.

Drupal\Core\Cache\DatabaseBackend::checksumTags	Run #517dc41118628	Run #517dc23f63001	Diff	Diff%
Number of Function Calls	108	108	0	0.0%
Incl. Wall Time (microsec)	3,045	3,020	-25	-0.8%
Incl. Wall Time (microsec) per call	28	28	-0	-0.8%
Excl. Wall Time (microsec)	1,211	1,217	6	0.5%
Incl. CPU (microsecs)	0	8,001	8,001	N/A%
Incl. CPU (microsecs) per call	0	74	74	N/A%
Excl. CPU (microsec)	0	0	0	N/A%
Incl. MemUse (bytes)	110,088	110,056	-32	-0.0%
Incl. MemUse (bytes) per call	1,019	1,019	-0	-0.0%
Excl. MemUse (bytes)	-167,808	-167,832	-24	-0.0%
Incl. PeakMemUse (bytes)	154,128	158,672	4,544	2.9%
Incl. PeakMemUse (bytes) per call	1,427	1,469	42	2.9%
Excl. PeakMemUse (bytes)	36,264	38,280	2,016	5.6%

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%	-25	-0.0%	8,001	15.4%	-32	-0.0%	4,544	0.3%
Exclusive Metrics Diff for Current Function			6	24.0%	0	0.0%	-24	-75.0%	2,016	44.4%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::prepareItem	0	N/A%	-25	-100.0%	8,001	100.0%	-32	-100.0%	4,544	100.0%
Drupal\Core\Cache\DatabaseBackend::prepareItem@1	0	N/A%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
*Child functions*
Drupal\Core\Database\Connection::query	0	N/A%	-26	-104.0%	8,001	100.0%	32	100.0%	136	3.0%
Drupal\Core\Database\Statement::fetchAllAssoc	0	N/A%	-3	-12.0%	0	0.0%	-16	-50.0%	88	1.9%
array_keys	0	N/A%	3	12.0%	0	0.0%	-24	-75.0%	1,592	35.0%
drupal_static	0	N/A%	-2	-8.0%	0	0.0%	0	0.0%	192	4.2%
array_fill_keys	0	N/A%	-2	-8.0%	0	0.0%	0	0.0%	0	0.0%
array_diff	0	N/A%	-1	-4.0%	0	0.0%	0	0.0%	520	11.4%