XHProf: Hierarchical Profiler Report

Diff Report: Run #5198f0bb880ef: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198f1db1bc51: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

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

Drupal\Core\Database\Connection::query	Run #5198f0bb880ef	Run #5198f1db1bc51	Diff	Diff%
Number of Function Calls	159	160	1	0.6%
Incl. Wall Time (microsec)	60,907	60,134	-773	-1.3%
Incl. Wall Time (microsec) per call	383	376	-7	-1.9%
Excl. Wall Time (microsec)	2,399	2,388	-11	-0.5%
Incl. CPU (microsecs)	22,703	22,405	-298	-1.3%
Incl. CPU (microsecs) per call	143	140	-3	-1.9%
Excl. CPU (microsec)	1,983	2,013	30	1.5%
Incl. MemUse (bytes)	1,103,264	1,109,456	6,192	0.6%
Incl. MemUse (bytes) per call	6,939	6,934	-5	-0.1%
Excl. MemUse (bytes)	-136,792	-137,592	-800	-0.6%
Incl. PeakMemUse (bytes)	538,744	536,928	-1,816	-0.3%
Incl. PeakMemUse (bytes) per call	3,388	3,356	-33	-1.0%
Excl. PeakMemUse (bytes)	25,304	25,680	376	1.5%

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%	-773	-48.3%	-298	-13.4%	6,192	21.6%	-1,816	-4.7%
Exclusive Metrics Diff for Current Function			-11	-1.4%	30	10.1%	-800	-12.9%	376	20.7%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	1	100.0%	-843	-109.1%	-173	-58.1%	6,192	100.0%	968	53.3%
Drupal\Core\Cache\DatabaseBackend::getMultiple@1	0	0.0%	329	42.6%	61	20.5%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	0.0%	114	14.7%	1	0.3%	0	0.0%	72	4.0%
Drupal\Core\Database\Query\Select::execute	0	0.0%	-111	-14.4%	-100	-33.6%	16	0.3%	-104	-5.7%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	0.0%	-104	-13.5%	-64	-21.5%	0	0.0%	-2,528	-139.2%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	0.0%	-78	-10.1%	-10	-3.4%	-8	-0.1%	0	0.0%
Drupal\Core\Database\Driver\mysql\Insert::execute	0	0.0%	-70	-9.1%	-18	-6.0%	-8	-0.1%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	0.0%	-62	-8.0%	2	0.7%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRouteCollectionForRequest	0	0.0%	27	3.5%	17	5.7%	0	0.0%	-224	-12.3%
Drupal\Core\Path\AliasManager::lookupPathSource	0	0.0%	24	3.1%	-13	-4.4%	0	0.0%	0	0.0%
db_query	0	0.0%	8	1.0%	7	2.3%	0	0.0%	0	0.0%
Drupal\Core\KeyValueStore\DatabaseStorageExpirable::getMultiple	0	0.0%	-7	-0.9%	-8	-2.7%	0	0.0%	0	0.0%
*Child functions*
Drupal\Core\Database\Statement::execute	1	25.0%	-897	-116.0%	-431	-144.6%	5,288	85.4%	-2,072	-114.1%
Drupal\Core\Database\Connection::expandArguments	1	25.0%	76	9.8%	63	21.1%	8	0.1%	-240	-13.2%
Drupal\Core\Database\Connection::prepareQuery	1	25.0%	57	7.4%	44	14.8%	944	15.2%	-320	-17.6%
Drupal\Core\Database\Connection::defaultOptions	1	25.0%	4	0.5%	0	0.0%	760	12.3%	440	24.2%
PDO::lastInsertId	0	0.0%	-2	-0.3%	-4	-1.3%	-8	-0.1%	0	0.0%