XHProf: Hierarchical Profiler Report

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