XHProf: Hierarchical Profiler Report

Diff Report: Run #53d4352fc0c61: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #53d435bff29d8: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Drupal\Core\Cache\DatabaseBackend::checksumTags	Run #53d4352fc0c61	Run #53d435bff29d8	Diff	Diff%
Number of Function Calls	92	92	0	0.0%
Incl. Wall Time (microsec)	6,536	6,414	-122	-1.9%
Incl. Wall Time (microsec) per call	71	70	-1	-1.9%
Excl. Wall Time (microsec)	2,385	2,305	-80	-3.4%
Incl. CPU (microsecs)	6,132	5,985	-147	-2.4%
Incl. CPU (microsecs) per call	67	65	-2	-2.4%
Excl. CPU (microsec)	2,044	1,970	-74	-3.6%
Incl. MemUse (bytes)	75,176	75,176	0	0.0%
Incl. MemUse (bytes) per call	817	817	0	0.0%
Excl. MemUse (bytes)	-224,592	-224,592	0	0.0%
Incl. PeakMemUse (bytes)	175,088	175,088	0	0.0%
Incl. PeakMemUse (bytes) per call	1,903	1,903	0	0.0%
Excl. PeakMemUse (bytes)	55,024	55,024	0	0.0%

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%	-122	-4.6%	-147	-4.9%	0	N/A%	0	N/A%
Exclusive Metrics Diff for Current Function			-80	-65.6%	-74	-50.3%	0	N/A%	0	N/A%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::prepareItem	0	N/A%	-128	-104.9%	-152	-103.4%	0	N/A%	0	N/A%
Drupal\Core\Cache\DatabaseBackend::prepareItem@1	0	N/A%	6	4.9%	5	3.4%	0	N/A%	0	N/A%
*Child functions*
Drupal\Core\Database\Connection::query	0	N/A%	-75	-61.5%	-99	-67.3%	0	N/A%	0	N/A%
array_diff	0	N/A%	49	40.2%	59	40.1%	0	N/A%	0	N/A%
array_keys	0	N/A%	-15	-12.3%	-16	-10.9%	0	N/A%	0	N/A%
Drupal\Core\Database\Statement::fetchAllAssoc	0	N/A%	10	8.2%	1	0.7%	0	N/A%	0	N/A%
drupal_static	0	N/A%	-8	-6.6%	-17	-11.6%	0	N/A%	0	N/A%
array_fill_keys	0	N/A%	-3	-2.5%	-1	-0.7%	0	N/A%	0	N/A%