XHProf: Hierarchical Profiler Report

Diff Report: Run #519c0a514701f: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c0ad3d3949: 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 #519c0a514701f	Run #519c0ad3d3949	Diff	Diff%
Number of Function Calls	117	117	0	0.0%
Incl. Wall Time (microsec)	62,800	60,894	-1,906	-3.0%
Incl. Wall Time (microsec) per call	537	520	-16	-3.0%
Excl. Wall Time (microsec)	3,305	3,219	-86	-2.6%
Incl. CPU (microsecs)	22,906	22,710	-196	-0.9%
Incl. CPU (microsecs) per call	196	194	-2	-0.9%
Excl. CPU (microsec)	2,918	2,815	-103	-3.5%
Incl. MemUse (bytes)	191,824	191,824	0	0.0%
Incl. MemUse (bytes) per call	1,640	1,640	0	0.0%
Excl. MemUse (bytes)	-49,940	-49,940	0	0.0%
Incl. PeakMemUse (bytes)	166,152	165,988	-164	-0.1%
Incl. PeakMemUse (bytes) per call	1,420	1,419	-1	-0.1%
Excl. PeakMemUse (bytes)	25,024	24,968	-56	-0.2%

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%	-1,906	-103.3%	-196	-5.6%	0	0.0%	-164	-0.1%
Exclusive Metrics Diff for Current Function			-86	-4.5%	-103	-52.6%	0	N/A%	-56	-34.1%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	-1,908	-100.1%	-110	-56.1%	0	N/A%	-140	-85.4%
Drupal\Core\Cache\DatabaseBackend::getMultiple@1	0	N/A%	342	17.9%	34	17.3%	0	N/A%	0	0.0%
Drupal\Core\Database\Query\Select::execute	0	N/A%	-260	-13.6%	-110	-56.1%	0	N/A%	-24	-14.6%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	-196	-10.3%	-46	-23.5%	0	N/A%	0	0.0%
db_query	0	N/A%	179	9.4%	40	20.4%	0	N/A%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRouteCollectionForRequest	0	N/A%	82	4.3%	44	22.4%	0	N/A%	0	0.0%
Drupal\views\Plugin\views\query\Sql::setupTimezone	0	N/A%	-79	-4.1%	-70	-35.7%	0	N/A%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	-56	-2.9%	-33	-16.8%	0	N/A%	0	0.0%
Drupal\Core\Path\AliasManager::lookupPathSource	0	N/A%	-14	-0.7%	54	27.6%	0	N/A%	0	0.0%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	N/A%	4	0.2%	1	0.5%	0	N/A%	0	0.0%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	-1,966	-103.1%	-269	-137.2%	0	N/A%	-24	-14.6%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	75	3.9%	75	38.3%	0	N/A%	-84	-51.2%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	65	3.4%	69	35.2%	0	N/A%	0	0.0%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	6	0.3%	32	16.3%	0	N/A%	0	0.0%