XHProf: Hierarchical Profiler Report

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

Drupal\Core\Cache\DatabaseBackend::checksumTags	Run #517dc23f63001	Run #517dc41118628	Diff	Diff%
Number of Function Calls	108	108	0	0.0%
Incl. Wall Time (microsec)	3,020	3,045	25	0.8%
Incl. Wall Time (microsec) per call	28	28	0	0.8%
Excl. Wall Time (microsec)	1,217	1,211	-6	-0.5%
Incl. CPU (microsecs)	8,001	0	-8,001	-100.0%
Incl. CPU (microsecs) per call	74	0	-74	-100.0%
Excl. CPU (microsec)	0	0	0	N/A%
Incl. MemUse (bytes)	110,056	110,088	32	0.0%
Incl. MemUse (bytes) per call	1,019	1,019	0	0.0%
Excl. MemUse (bytes)	-167,832	-167,808	24	0.0%
Incl. PeakMemUse (bytes)	158,672	154,128	-4,544	-2.9%
Incl. PeakMemUse (bytes) per call	1,469	1,427	-42	-2.9%
Excl. PeakMemUse (bytes)	38,280	36,264	-2,016	-5.3%

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%