XHProf: Hierarchical Profiler Report

Diff Report: Run #519fd13122e91: XHProf Run (Namespace=drupal-perf-mrbaileys)
vs.
Run #519fd0873c1d7: XHProf Run (Namespace=drupal-perf-mrbaileys)
Tip: Click a function name below to drill down.

Drupal\Core\Cache\DatabaseBackend::checksumTags	Run #519fd13122e91	Run #519fd0873c1d7	Diff	Diff%
Number of Function Calls	115	115	0	0.0%
Incl. Wall Time (microsec)	4,825	4,730	-95	-2.0%
Incl. Wall Time (microsec) per call	42	41	-1	-2.0%
Excl. Wall Time (microsec)	1,630	1,643	13	0.8%
Incl. CPU (microsecs)	4,001	12,000	7,999	199.9%
Incl. CPU (microsecs) per call	35	104	70	199.9%
Excl. CPU (microsec)	0	0	0	N/A%
Incl. MemUse (bytes)	76,904	76,864	-40	-0.1%
Incl. MemUse (bytes) per call	669	668	-0	-0.1%
Excl. MemUse (bytes)	-79,944	-79,968	-24	-0.0%
Incl. PeakMemUse (bytes)	49,952	49,704	-248	-0.5%
Incl. PeakMemUse (bytes) per call	434	432	-2	-0.5%
Excl. PeakMemUse (bytes)	8,256	8,032	-224	-2.7%

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%	-95	-9.0%	7,999	799900.0%	-40	-0.3%	-248	-27.7%
Exclusive Metrics Diff for Current Function			13	13.7%	0	0.0%	-24	-60.0%	-224	-90.3%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::prepareItem	0	N/A%	-61	-64.2%	7,999	100.0%	-40	-100.0%	-248	-100.0%
Drupal\Core\Cache\DatabaseBackend::prepareItem@1	0	N/A%	-34	-35.8%	0	0.0%	0	0.0%	0	0.0%
*Child functions*
Drupal\Core\Database\Connection::query	0	N/A%	-117	-123.2%	-4,001	-50.0%	0	0.0%	0	0.0%
Drupal\Core\Database\Statement::fetchAllAssoc	0	N/A%	17	17.9%	0	0.0%	-32	-80.0%	-24	-9.7%
drupal_static	0	N/A%	-7	-7.4%	4,000	50.0%	0	0.0%	0	0.0%
array_fill_keys	0	N/A%	3	3.2%	0	0.0%	0	0.0%	0	0.0%
array_diff	0	N/A%	-3	-3.2%	0	0.0%	0	0.0%	0	0.0%
array_keys	0	N/A%	-1	-1.1%	8,000	100.0%	16	40.0%	0	0.0%