XHProf: Hierarchical Profiler Report

Diff Report: Run #53923e49d2b58: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #53923d861ff11: 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 #53923e49d2b58	Run #53923d861ff11	Diff	Diff%
Number of Function Calls	258	258	0	0.0%
Incl. Wall Time (microsec)	109,608	110,110	502	0.5%
Incl. Wall Time (microsec) per call	425	427	2	0.5%
Excl. Wall Time (microsec)	4,897	4,944	47	1.0%
Incl. CPU (microsecs)	38,745	38,590	-155	-0.4%
Incl. CPU (microsecs) per call	150	150	-1	-0.4%
Excl. CPU (microsec)	4,128	4,240	112	2.7%
Incl. MemUse (bytes)	375,312	408,080	32,768	8.7%
Incl. MemUse (bytes) per call	1,455	1,582	127	8.7%
Excl. MemUse (bytes)	-120,592	-120,544	48	0.0%
Incl. PeakMemUse (bytes)	459,996	482,308	22,312	4.9%
Incl. PeakMemUse (bytes) per call	1,783	1,869	86	4.9%
Excl. PeakMemUse (bytes)	170,180	102,208	-67,972	-39.9%

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%	502	32.1%	-155	-14.2%	32,768	3757.8%	22,312	3205.7%
Exclusive Metrics Diff for Current Function			47	9.4%	112	72.3%	48	0.1%	-67,972	-304.6%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	1,520	302.8%	247	159.4%	4	0.0%	-54,100	-242.5%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	N/A%	-810	-161.4%	-44	-28.4%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	-595	-118.5%	-418	-269.7%	0	0.0%	7,276	32.6%
Drupal\Core\Config\DatabaseStorage::readMultiple	0	N/A%	-550	-109.6%	-192	-123.9%	-8	-0.0%	-5,960	-26.7%
Drupal\Core\Database\Driver\mysql\Insert::execute	0	N/A%	439	87.5%	144	92.9%	0	0.0%	-160	-0.7%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	339	67.5%	-22	-14.2%	0	0.0%	-20	-0.1%
Drupal\Core\Database\Query\Select::execute	0	N/A%	246	49.0%	112	72.3%	32,764	100.0%	64,456	288.9%
Drupal\Core\Config\DatabaseStorage::listAll	0	N/A%	-237	-47.2%	-47	-30.3%	0	0.0%	10,748	48.2%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	N/A%	93	18.5%	17	11.0%	0	0.0%	0	0.0%
Drupal\Core\Path\AliasStorage::lookupPathSource	0	N/A%	91	18.1%	-22	-14.2%	8	0.0%	72	0.3%
Drupal\node\Access\NodeRevisionAccessCheck::checkAccess	0	N/A%	-75	-14.9%	7	4.5%	0	0.0%	0	0.0%
Drupal\user\UserStorage::addRoles	0	N/A%	51	10.2%	13	8.4%	0	0.0%	0	0.0%
Drupal\Core\Path\AliasStorage::preloadPathAlias	0	N/A%	-10	-2.0%	50	32.3%	0	0.0%	0	0.0%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	362	72.1%	-309	-199.4%	-40	-0.1%	-8	-0.0%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	64	12.7%	36	23.2%	0	0.0%	18,992	85.1%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	22	4.4%	19	12.3%	8	0.0%	4,652	20.8%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	14	2.8%	-8	-5.2%	32,752	100.0%	66,648	298.7%
PDO::lastInsertId	0	N/A%	-7	-1.4%	-5	-3.2%	0	0.0%	0	0.0%