XHProf: Hierarchical Profiler Report

Diff Report: Run #53180bc98020f: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #53180b3960796: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Drupal\Core\Cache\DatabaseBackend::checksumTags	Run #53180bc98020f	Run #53180b3960796	Diff	Diff%
Number of Function Calls	166	166	0	0.0%
Incl. Wall Time (microsec)	9,889	9,705	-184	-1.9%
Incl. Wall Time (microsec) per call	60	58	-1	-1.9%
Excl. Wall Time (microsec)	3,260	3,237	-23	-0.7%
Incl. CPU (microsecs)	9,327	9,118	-209	-2.2%
Incl. CPU (microsecs) per call	56	55	-1	-2.2%
Excl. CPU (microsec)	2,789	2,778	-11	-0.4%
Incl. MemUse (bytes)	121,824	121,824	0	0.0%
Incl. MemUse (bytes) per call	734	734	0	0.0%
Excl. MemUse (bytes)	-470,728	-470,728	0	0.0%
Incl. PeakMemUse (bytes)	250,096	250,096	0	0.0%
Incl. PeakMemUse (bytes) per call	1,507	1,507	0	0.0%
Excl. PeakMemUse (bytes)	61,704	61,704	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%	-184	-5.1%	-209	-6.3%	0	N/A%	0	N/A%
Exclusive Metrics Diff for Current Function			-23	-12.5%	-11	-5.3%	0	N/A%	0	N/A%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::prepareItem	0	N/A%	-235	-127.7%	-262	-125.4%	0	N/A%	0	N/A%
Drupal\Core\Cache\DatabaseBackend::prepareItem@1	0	N/A%	51	27.7%	53	25.4%	0	N/A%	0	N/A%
*Child functions*
array_keys	0	N/A%	-50	-27.2%	-44	-21.1%	0	N/A%	0	N/A%
Drupal\Core\Database\Connection::query	0	N/A%	-43	-23.4%	-66	-31.6%	0	N/A%	0	N/A%
drupal_static	0	N/A%	-35	-19.0%	-37	-17.7%	0	N/A%	0	N/A%
Drupal\Core\Database\Statement::fetchAllAssoc	0	N/A%	-35	-19.0%	-47	-22.5%	0	N/A%	0	N/A%
array_diff	0	N/A%	4	2.2%	3	1.4%	0	N/A%	0	N/A%
array_fill_keys	0	N/A%	-2	-1.1%	-7	-3.3%	0	N/A%	0	N/A%