XHProf: Hierarchical Profiler Report

Diff Report: Run #519ff7de62889: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519ff693b4ca2: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Drupal\Core\Cache\DatabaseBackend::getMultiple	Run #519ff7de62889	Run #519ff693b4ca2	Diff	Diff%
Number of Function Calls	73	73	0	0.0%
Incl. Wall Time (microsec)	43,577	43,193	-384	-0.9%
Incl. Wall Time (microsec) per call	597	592	-5	-0.9%
Excl. Wall Time (microsec)	2,890	2,858	-32	-1.1%
Incl. CPU (microsecs)	41,120	40,692	-428	-1.0%
Incl. CPU (microsecs) per call	563	557	-6	-1.0%
Excl. CPU (microsec)	2,622	2,592	-30	-1.1%
Incl. MemUse (bytes)	1,781,760	1,778,184	-3,576	-0.2%
Incl. MemUse (bytes) per call	24,408	24,359	-49	-0.2%
Excl. MemUse (bytes)	98,336	97,664	-672	-0.7%
Incl. PeakMemUse (bytes)	2,353,928	2,349,376	-4,552	-0.2%
Incl. PeakMemUse (bytes) per call	32,246	32,183	-62	-0.2%
Excl. PeakMemUse (bytes)	190,312	189,696	-616	-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::getMultiple	0	N/A%	-384	-33.9%	-428	-36.4%	-3,576	-5.2%	-4,552	-6.5%
Exclusive Metrics Diff for Current Function			-32	-8.3%	-30	-7.0%	-672	-18.8%	-616	-13.5%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::get	0	N/A%	-399	-103.9%	-438	-102.3%	-3,576	-100.0%	-4,552	-100.0%
field_attach_load	0	N/A%	15	3.9%	10	2.3%	0	0.0%	0	0.0%
*Child functions*
Drupal\Core\Cache\DatabaseBackend::prepareItem	0	N/A%	-220	-57.3%	-227	-53.0%	-2,904	-81.2%	-3,832	-84.2%
Drupal\Core\Database\Connection::query	0	N/A%	-106	-27.6%	-136	-31.8%	0	0.0%	-56	-1.2%
Drupal\Core\Database\Connection::escapeTable	0	N/A%	-21	-5.5%	-20	-4.7%	0	0.0%	-48	-1.1%
array_keys	0	N/A%	-6	-1.6%	-15	-3.5%	0	0.0%	0	0.0%
array_diff	0	N/A%	1	0.3%	0	0.0%	0	0.0%	0	0.0%