XHProf: Hierarchical Profiler Report

Diff Report: Run #52e436ce9c71d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e4374042ace: 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 #52e436ce9c71d	Run #52e4374042ace	Diff	Diff%
Number of Function Calls	121	122	1	0.8%
Incl. Wall Time (microsec)	27,095	27,314	219	0.8%
Incl. Wall Time (microsec) per call	224	224	-0	-0.0%
Excl. Wall Time (microsec)	1,470	1,482	12	0.8%
Incl. CPU (microsecs)	13,107	13,171	64	0.5%
Incl. CPU (microsecs) per call	108	108	-0	-0.3%
Excl. CPU (microsec)	1,198	1,158	-40	-3.3%
Incl. MemUse (bytes)	753,928	759,824	5,896	0.8%
Incl. MemUse (bytes) per call	6,231	6,228	-3	-0.0%
Excl. MemUse (bytes)	-89,136	-89,872	-736	-0.8%
Incl. PeakMemUse (bytes)	594,880	598,224	3,344	0.6%
Incl. PeakMemUse (bytes) per call	4,916	4,903	-13	-0.3%
Excl. PeakMemUse (bytes)	39,184	39,816	632	1.6%

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	1	20.0%	219	18.8%	64	6.3%	5,896	7.3%	3,344	4.2%
Exclusive Metrics Diff for Current Function			12	5.5%	-40	-62.5%	-736	-12.5%	632	18.9%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	1	100.0%	225	102.7%	109	170.3%	5,872	99.6%	3,272	97.8%
db_query	-1	-100.0%	-214	-97.7%	-102	-159.4%	-4,272	-72.5%	-2,688	-80.4%
Drupal\user\UserStorageController::addRoles	1	100.0%	200	91.3%	98	153.1%	4,304	73.0%	2,512	75.1%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	0.0%	-37	-16.9%	-47	-73.4%	8	0.1%	208	6.2%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	0.0%	24	11.0%	9	14.1%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	0.0%	22	10.0%	12	18.8%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	0.0%	-14	-6.4%	-15	-23.4%	0	0.0%	0	0.0%
Drupal\Core\Database\Query\Select::execute	0	0.0%	8	3.7%	3	4.7%	16	0.3%	0	0.0%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	0.0%	4	1.8%	-1	-1.6%	0	0.0%	40	1.2%
Drupal\Core\Path\AliasManager::lookupPathSource	0	0.0%	1	0.5%	-2	-3.1%	-32	-0.5%	0	0.0%
*Child functions*
Drupal\Core\Database\Statement::execute	1	25.0%	173	79.0%	53	82.8%	4,912	83.3%	2,952	88.3%
Drupal\Core\Database\Connection::prepareQuery	1	25.0%	35	16.0%	37	57.8%	952	16.1%	648	19.4%
Drupal\Core\Database\Connection::expandArguments	1	25.0%	-5	-2.3%	6	9.4%	8	0.1%	-1,560	-46.7%
Drupal\Core\Database\Connection::defaultOptions	1	25.0%	4	1.8%	8	12.5%	760	12.9%	672	20.1%