XHProf: Hierarchical Profiler Report

Diff Report: Run #51a4630d23a4c: XHProf Run (Namespace=drupal-perf-ezeedub)
vs.
Run #51a462112dd99: XHProf Run (Namespace=drupal-perf-ezeedub)
Tip: Click a function name below to drill down.

Drupal\Core\Cache\DatabaseBackend::checksumTags	Run #51a4630d23a4c	Run #51a462112dd99	Diff	Diff%
Number of Function Calls	77	77	0	0.0%
Incl. Wall Time (microsec)	6,304	6,309	5	0.1%
Incl. Wall Time (microsec) per call	82	82	0	0.1%
Excl. Wall Time (microsec)	1,935	1,885	-50	-2.6%
Incl. CPU (microsecs)	4,000	12,001	8,001	200.0%
Incl. CPU (microsecs) per call	52	156	104	200.0%
Excl. CPU (microsec)	0	8,000	8,000	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)	-40,964	-40,960	4	0.0%
Incl. PeakMemUse (bytes)	34,272	34,220	-52	-0.2%
Incl. PeakMemUse (bytes) per call	445	444	-1	-0.2%
Excl. PeakMemUse (bytes)	3,996	4,068	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%	5	0.4%	8,001	400050.0%	0	0.0%	-52	-0.2%
Exclusive Metrics Diff for Current Function			-50	-1000.0%	8,000	100.0%	4	N/A%	72	138.5%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::prepareItem	0	N/A%	13	260.0%	8,001	100.0%	0	N/A%	-28	-53.8%
Drupal\Core\Cache\DatabaseBackend::prepareItem@1	0	N/A%	-8	-160.0%	0	0.0%	0	N/A%	-24	-46.2%
*Child functions*
Drupal\Core\Database\Connection::query	0	N/A%	30	600.0%	0	0.0%	0	N/A%	32	61.5%
array_diff	0	N/A%	28	560.0%	0	0.0%	-4	N/A%	-84	-161.5%
drupal_static	0	N/A%	-12	-240.0%	1	0.0%	0	N/A%	0	0.0%
Drupal\Core\Database\Statement::fetchAllAssoc	0	N/A%	12	240.0%	0	0.0%	0	N/A%	-16	-30.8%
array_keys	0	N/A%	-3	-60.0%	0	0.0%	0	N/A%	-56	-107.7%
array_fill_keys	0	N/A%	0	0.0%	0	0.0%	0	N/A%	0	0.0%