XHProf: Hierarchical Profiler Report

Diff Report: Run #51c25102ed66d: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51c24fd9b971a: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Drupal\Core\Cache\DatabaseBackend::checksumTags	Run #51c25102ed66d	Run #51c24fd9b971a	Diff	Diff%
Number of Function Calls	80	80	0	0.0%
Incl. Wall Time (microsec)	7,146	7,345	199	2.8%
Incl. Wall Time (microsec) per call	89	92	2	2.8%
Excl. Wall Time (microsec)	1,651	1,637	-14	-0.8%
Incl. CPU (microsecs)	5,083	5,095	12	0.2%
Incl. CPU (microsecs) per call	64	64	0	0.2%
Excl. CPU (microsec)	1,411	1,359	-52	-3.7%
Incl. MemUse (bytes)	63,368	63,368	0	0.0%
Incl. MemUse (bytes) per call	792	792	0	0.0%
Excl. MemUse (bytes)	-94,056	-94,096	-40	-0.0%
Incl. PeakMemUse (bytes)	64,584	64,552	-32	-0.0%
Incl. PeakMemUse (bytes) per call	807	807	-0	-0.0%
Excl. PeakMemUse (bytes)	15,928	15,976	48	0.3%

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%	199	1.4%	12	0.1%	0	0.0%	-32	-0.1%
Exclusive Metrics Diff for Current Function			-14	-7.0%	-52	-433.3%	-40	N/A%	48	150.0%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::prepareItem	0	N/A%	181	91.0%	47	391.7%	0	N/A%	-32	-100.0%
Drupal\Core\Cache\DatabaseBackend::prepareItem@1	0	N/A%	18	9.0%	-35	-291.7%	0	N/A%	0	0.0%
*Child functions*
Drupal\Core\Database\Connection::query	0	N/A%	243	122.1%	51	425.0%	0	N/A%	-80	-250.0%
drupal_static	0	N/A%	-18	-9.0%	-7	-58.3%	0	N/A%	0	0.0%
array_keys	0	N/A%	-12	-6.0%	-7	-58.3%	40	N/A%	0	0.0%
Drupal\Core\Database\Statement::fetchAllAssoc	0	N/A%	-8	-4.0%	-8	-66.7%	0	N/A%	0	0.0%
array_diff	0	N/A%	8	4.0%	31	258.3%	0	N/A%	0	0.0%
array_fill_keys	0	N/A%	0	0.0%	4	33.3%	0	N/A%	0	0.0%