XHProf: Hierarchical Profiler Report

Diff Report: Run #51a4f50036185: XHProf Run (Namespace=drupal-perf-ezeedub)
vs.
Run #51a5000df000f: XHProf Run (Namespace=drupal-perf-ezeedub)
Tip: Click a function name below to drill down.

Drupal\Core\Cache\DatabaseBackend::checksumTags	Run #51a4f50036185	Run #51a5000df000f	Diff	Diff%
Number of Function Calls	77	77	0	0.0%
Incl. Wall Time (microsec)	6,567	6,350	-217	-3.3%
Incl. Wall Time (microsec) per call	85	82	-3	-3.3%
Excl. Wall Time (microsec)	1,921	1,801	-120	-6.2%
Incl. CPU (microsecs)	0	4,000	4,000	N/A%
Incl. CPU (microsecs) per call	0	52	52	N/A%
Excl. CPU (microsec)	0	0	0	N/A%
Incl. MemUse (bytes)	31,296	31,296	0	0.0%
Incl. MemUse (bytes) per call	406	406	0	0.0%
Excl. MemUse (bytes)	-40,960	-40,964	-4	-0.0%
Incl. PeakMemUse (bytes)	34,220	34,272	52	0.2%
Incl. PeakMemUse (bytes) per call	444	445	1	0.2%
Excl. PeakMemUse (bytes)	4,068	3,996	-72	-1.8%

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%	-217	-4.7%	4,000	100.0%	0	0.0%	52	0.2%
Exclusive Metrics Diff for Current Function			-120	-55.3%	0	0.0%	-4	N/A%	-72	-138.5%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::prepareItem	0	N/A%	-209	-96.3%	4,000	100.0%	0	N/A%	28	53.8%
Drupal\Core\Cache\DatabaseBackend::prepareItem@1	0	N/A%	-8	-3.7%	0	0.0%	0	N/A%	24	46.2%
*Child functions*
drupal_static	0	N/A%	-76	-35.0%	0	0.0%	0	N/A%	0	0.0%
Drupal\Core\Database\Connection::query	0	N/A%	72	33.2%	4,000	100.0%	0	N/A%	-32	-61.5%
array_diff	0	N/A%	-56	-25.8%	0	0.0%	4	N/A%	84	161.5%
Drupal\Core\Database\Statement::fetchAllAssoc	0	N/A%	-23	-10.6%	0	0.0%	0	N/A%	16	30.8%
array_keys	0	N/A%	-13	-6.0%	0	0.0%	0	N/A%	56	107.7%
array_fill_keys	0	N/A%	-1	-0.5%	0	0.0%	0	N/A%	0	0.0%