XHProf: Hierarchical Profiler Report

Diff Report: Run #539205a48c548: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539206aca7ae8: 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 #539205a48c548	Run #539206aca7ae8	Diff	Diff%
Number of Function Calls	196	196	0	0.0%
Incl. Wall Time (microsec)	83,283	83,957	674	0.8%
Incl. Wall Time (microsec) per call	425	428	3	0.8%
Excl. Wall Time (microsec)	3,745	3,814	69	1.8%
Incl. CPU (microsecs)	29,784	30,060	276	0.9%
Incl. CPU (microsecs) per call	152	153	1	0.9%
Excl. CPU (microsec)	3,206	3,227	21	0.7%
Incl. MemUse (bytes)	275,272	275,204	-68	-0.0%
Incl. MemUse (bytes) per call	1,404	1,404	-0	-0.0%
Excl. MemUse (bytes)	-121,160	-121,220	-60	-0.0%
Incl. PeakMemUse (bytes)	378,668	379,724	1,056	0.3%
Incl. PeakMemUse (bytes) per call	1,932	1,937	5	0.3%
Excl. PeakMemUse (bytes)	33,424	33,640	216	0.6%

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	0	N/A%	674	14.6%	276	7.3%	-68	-0.1%	1,056	1.1%
Exclusive Metrics Diff for Current Function			69	10.2%	21	7.6%	-60	-88.2%	216	20.5%
*Parent functions*
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	N/A%	807	119.7%	186	67.4%	-12	-17.6%	-12	-1.1%
Drupal\Core\Database\Driver\mysql\Insert::execute	0	N/A%	-443	-65.7%	-140	-50.7%	0	0.0%	176	16.7%
Drupal\Core\Config\DatabaseStorage::readMultiple	0	N/A%	277	41.1%	175	63.4%	12	17.6%	-380	-36.0%
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	-185	-27.4%	175	63.4%	-56	-82.4%	8	0.8%
Drupal\user\UserStorage::addRoles	0	N/A%	-156	-23.1%	-48	-17.4%	0	0.0%	0	0.0%
Drupal\Core\Config\DatabaseStorage::listAll	0	N/A%	153	22.7%	65	23.6%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	139	20.6%	-86	-31.2%	-8	-11.8%	-92	-8.7%
Drupal\Core\Database\Query\Select::execute	0	N/A%	-90	-13.4%	88	31.9%	-4	-5.9%	1,584	150.0%
Drupal\Core\KeyValueStore\DatabaseStorageExpirable::getAll	0	N/A%	82	12.2%	-50	-18.1%	0	0.0%	0	0.0%
Drupal\Core\Path\AliasStorage::preloadPathAlias	0	N/A%	-67	-9.9%	5	1.8%	0	0.0%	0	0.0%
Drupal\Core\Database\Query\Delete::execute	0	N/A%	65	9.6%	8	2.9%	0	0.0%	0	0.0%
Drupal\Core\Path\AliasStorage::lookupPathSource	0	N/A%	45	6.7%	46	16.7%	0	0.0%	-20	-1.9%
Drupal\Core\KeyValueStore\DatabaseStorage::getAll	0	N/A%	35	5.2%	-22	-8.0%	0	0.0%	0	0.0%
Drupal\Core\KeyValueStore\DatabaseStorageExpirable::getMultiple	0	N/A%	29	4.3%	-23	-8.3%	0	0.0%	0	0.0%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	-28	-4.2%	-35	-12.7%	0	0.0%	-64	-6.1%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	N/A%	11	1.6%	-68	-24.6%	0	0.0%	-144	-13.6%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	616	91.4%	221	80.1%	20	29.4%	48	4.5%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	-40	-5.9%	-45	-16.3%	16	23.5%	160	15.2%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	15	2.2%	48	17.4%	-60	-88.2%	592	56.1%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	15	2.2%	36	13.0%	16	23.5%	40	3.8%
PDO::lastInsertId	0	N/A%	-2	-0.3%	-5	-1.8%	0	0.0%	0	0.0%
Drupal\Core\Database\Statement::rowCount	0	N/A%	1	0.1%	0	0.0%	0	0.0%	0	0.0%