XHProf: Hierarchical Profiler Report

Diff Report: Run #519ff921aa26d: XHProf Run (Namespace=drupal-perf-ezeedub)
vs.
Run #519ff7ed8fdf9: XHProf Run (Namespace=drupal-perf-ezeedub)
Tip: Click a function name below to drill down.

Drupal\Core\Cache\DatabaseBackend::checksumTags	Run #519ff921aa26d	Run #519ff7ed8fdf9	Diff	Diff%
Number of Function Calls	91	90	-1	-1.1%
Incl. Wall Time (microsec)	6,592	6,572	-20	-0.3%
Incl. Wall Time (microsec) per call	72	73	1	0.8%
Excl. Wall Time (microsec)	2,247	2,209	-38	-1.7%
Incl. CPU (microsecs)	0	8,000	8,000	N/A%
Incl. CPU (microsecs) per call	0	89	89	N/A%
Excl. CPU (microsec)	0	4,000	4,000	N/A%
Incl. MemUse (bytes)	35,172	34,912	-260	-0.7%
Incl. MemUse (bytes) per call	387	388	1	0.4%
Excl. MemUse (bytes)	-53,568	-52,632	936	1.7%
Incl. PeakMemUse (bytes)	45,680	45,556	-124	-0.3%
Incl. PeakMemUse (bytes) per call	502	506	4	0.8%
Excl. PeakMemUse (bytes)	7,808	7,752	-56	-0.7%

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	-1	-25.0%	-20	-0.4%	8,000	100.0%	-260	-1.5%	-124	-0.6%
Exclusive Metrics Diff for Current Function			-38	-190.0%	4,000	50.0%	936	360.0%	-56	-45.2%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::prepareItem	-1	-100.0%	-13	-65.0%	8,000	100.0%	-260	-100.0%	-124	-100.0%
Drupal\Core\Cache\DatabaseBackend::prepareItem@1	0	0.0%	-7	-35.0%	0	0.0%	0	0.0%	0	0.0%
*Child functions*
drupal_static	-1	-33.3%	33	165.0%	4,000	50.0%	0	0.0%	0	0.0%
array_diff	-1	-33.3%	-9	-45.0%	0	0.0%	-48	-18.5%	8	6.5%
Drupal\Core\Database\Connection::query	0	0.0%	-5	-25.0%	0	0.0%	0	0.0%	0	0.0%
array_keys	-1	-33.3%	-4	-20.0%	0	0.0%	-1,148	-441.5%	-76	-61.3%
Drupal\Core\Database\Statement::fetchAllAssoc	0	0.0%	3	15.0%	0	0.0%	0	0.0%	0	0.0%
array_fill_keys	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%