XHProf: Hierarchical Profiler Report

Diff Report: Run #51a18dd97f04c: XHProf Run (Namespace=drupal-perf-ezeedub)
vs.
Run #51a18f1daaf9e: XHProf Run (Namespace=drupal-perf-ezeedub)
Tip: Click a function name below to drill down.

Drupal\Core\Cache\DatabaseBackend::checksumTags	Run #51a18dd97f04c	Run #51a18f1daaf9e	Diff	Diff%
Number of Function Calls	146	146	0	0.0%
Incl. Wall Time (microsec)	8,887	8,800	-87	-1.0%
Incl. Wall Time (microsec) per call	61	60	-1	-1.0%
Excl. Wall Time (microsec)	3,170	3,185	15	0.5%
Incl. CPU (microsecs)	12,001	8,001	-4,000	-33.3%
Incl. CPU (microsecs) per call	82	55	-27	-33.3%
Excl. CPU (microsec)	4,001	8,001	4,000	100.0%
Incl. MemUse (bytes)	52,484	52,488	4	0.0%
Incl. MemUse (bytes) per call	359	360	0	0.0%
Excl. MemUse (bytes)	-55,520	-55,568	-48	-0.1%
Incl. PeakMemUse (bytes)	44,088	42,644	-1,444	-3.3%
Incl. PeakMemUse (bytes) per call	302	292	-10	-3.3%
Excl. PeakMemUse (bytes)	5,092	5,028	-64	-1.3%

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%	-87	-0.5%	-4,000	-25.0%	4	0.0%	-1,444	-4.3%
Exclusive Metrics Diff for Current Function			15	17.2%	4,000	100.0%	-48	-1200.0%	-64	-4.4%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::prepareItem	0	N/A%	-91	-104.6%	-4,000	-100.0%	4	100.0%	-1,440	-99.7%
Drupal\Core\Cache\DatabaseBackend::prepareItem@1	0	N/A%	4	4.6%	0	0.0%	0	0.0%	-4	-0.3%
*Child functions*
Drupal\Core\Database\Connection::query	0	N/A%	-76	-87.4%	-4,000	-100.0%	0	0.0%	-1,632	-113.0%
drupal_static	0	N/A%	-19	-21.8%	-4,000	-100.0%	0	0.0%	0	0.0%
array_keys	0	N/A%	-15	-17.2%	0	0.0%	48	1200.0%	164	11.4%
Drupal\Core\Database\Statement::fetchAllAssoc	0	N/A%	8	9.2%	0	0.0%	4	100.0%	-40	-2.8%
array_fill_keys	0	N/A%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
array_diff	0	N/A%	0	0.0%	0	0.0%	0	0.0%	128	8.9%