XHProf: Hierarchical Profiler Report

Diff Report: Run #539201f8938f4: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #5392041970f3f: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Database\Connection::query

Drupal\Core\Database\Connection::query	Run #539201f8938f4	Run #5392041970f3f	Diff	Diff%
Number of Function Calls	170	170	0	0.0%
Incl. Wall Time (microsec)	69,948	68,538	-1,410	-2.0%
Incl. Wall Time (microsec) per call	411	403	-8	-2.0%
Excl. Wall Time (microsec)	3,198	3,269	71	2.2%
Incl. CPU (microsecs)	25,879	25,750	-129	-0.5%
Incl. CPU (microsecs) per call	152	151	-1	-0.5%
Excl. CPU (microsec)	2,725	2,766	41	1.5%
Incl. MemUse (bytes)	244,608	244,644	36	0.0%
Incl. MemUse (bytes) per call	1,439	1,439	0	0.0%
Excl. MemUse (bytes)	-73,392	-73,380	12	0.0%
Incl. PeakMemUse (bytes)	268,304	268,548	244	0.1%
Incl. PeakMemUse (bytes) per call	1,578	1,580	1	0.1%
Excl. PeakMemUse (bytes)	32,656	32,636	-20	-0.1%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Connection::query [View Callgraph Diff]

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\Database\Connection::query	0	N/A%	-1,410	-96.2%	-129	-4.8%	36	0.1%	244	0.4%
Exclusive Metrics Diff for Current Function			71	5.0%	41	31.8%	12	33.3%	-20	-8.2%
*Parent functions*
Drupal\Core\Config\DatabaseStorage::readMultiple	0	N/A%	-831	-58.9%	168	130.2%	8	22.2%	220	90.2%
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	-598	-42.4%	54	41.9%	32	88.9%	36	14.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	367	26.0%	54	41.9%	0	0.0%	56	23.0%
Drupal\Core\Path\AliasStorage::lookupPathSource	0	N/A%	-260	-18.4%	-57	-44.2%	8	22.2%	12	4.9%
Drupal\Core\Database\Query\Select::execute	0	N/A%	186	13.2%	-80	-62.0%	0	0.0%	36	14.8%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	N/A%	-138	-9.8%	-215	-166.7%	0	0.0%	0	0.0%
Drupal\Core\Config\DatabaseStorage::listAll	0	N/A%	-56	-4.0%	1	0.8%	0	0.0%	-20	-8.2%
Drupal\user\UserStorage::addRoles	0	N/A%	-52	-3.7%	17	13.2%	0	0.0%	0	0.0%
Drupal\Core\Path\AliasStorage::preloadPathAlias	0	N/A%	-45	-3.2%	-30	-23.3%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	N/A%	41	2.9%	-10	-7.8%	0	0.0%	0	0.0%
Drupal\node\Access\NodeRevisionAccessCheck::checkAccess	0	N/A%	-23	-1.6%	-2	-1.6%	0	0.0%	0	0.0%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	-1	-0.1%	-29	-22.5%	-12	-33.3%	-96	-39.3%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	-1,344	-95.3%	-81	-62.8%	32	88.9%	348	142.6%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	-88	-6.2%	-77	-59.7%	-12	-33.3%	-160	-65.6%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	-49	-3.5%	-34	-26.4%	4	11.1%	72	29.5%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	0	0.0%	22	17.1%	0	0.0%	4	1.6%