XHProf: Hierarchical Profiler Report

Diff Report: Run #519d45fd795a4: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d44ffb3845: 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 #519d45fd795a4	Run #519d44ffb3845	Diff	Diff%
Number of Function Calls	170	170	0	0.0%
Incl. Wall Time (microsec)	98,287	97,138	-1,149	-1.2%
Incl. Wall Time (microsec) per call	578	571	-7	-1.2%
Excl. Wall Time (microsec)	4,823	4,823	0	0.0%
Incl. CPU (microsecs)	34,377	34,041	-336	-1.0%
Incl. CPU (microsecs) per call	202	200	-2	-1.0%
Excl. CPU (microsec)	4,316	4,305	-11	-0.3%
Incl. MemUse (bytes)	279,540	279,544	4	0.0%
Incl. MemUse (bytes) per call	1,644	1,644	0	0.0%
Excl. MemUse (bytes)	-80,624	-80,624	0	0.0%
Incl. PeakMemUse (bytes)	195,500	195,484	-16	-0.0%
Incl. PeakMemUse (bytes) per call	1,150	1,150	-0	-0.0%
Excl. PeakMemUse (bytes)	27,828	27,828	0	0.0%

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%	-1,149	-2.1%	-336	-0.6%	4	0.0%	-16	-0.0%
Exclusive Metrics Diff for Current Function			0	0.0%	-11	-3.3%	0	0.0%	0	0.0%
*Parent functions*
Drupal\Core\Database\Query\Update::execute	0	N/A%	-1,263	-109.9%	-6	-1.8%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	698	60.7%	55	16.4%	-4	-100.0%	-24	-150.0%
Drupal\Core\Database\Query\Select::execute	0	N/A%	-650	-56.6%	-64	-19.0%	0	0.0%	0	0.0%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	171	14.9%	-206	-61.3%	0	0.0%	0	0.0%
db_query	0	N/A%	-134	-11.7%	32	9.5%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::getMultiple@1	0	N/A%	51	4.4%	-110	-32.7%	8	200.0%	8	50.0%
Drupal\Core\Routing\RouteProvider::getRouteCollectionForRequest	0	N/A%	-47	-4.1%	-7	-2.1%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	24	2.1%	-34	-10.1%	0	0.0%	0	0.0%
Drupal\Core\Path\AliasManager::lookupPathSource	0	N/A%	3	0.3%	1	0.3%	0	0.0%	0	0.0%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	N/A%	-2	-0.2%	3	0.9%	0	0.0%	0	0.0%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	-1,115	-97.0%	-296	-88.1%	16	400.0%	-8	-50.0%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	-47	-4.1%	-47	-14.0%	-12	-300.0%	0	0.0%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	17	1.5%	10	3.0%	0	0.0%	-8	-50.0%
PDOStatement::rowCount	0	N/A%	-3	-0.3%	-5	-1.5%	0	0.0%	0	0.0%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	-1	-0.1%	13	3.9%	0	0.0%	0	0.0%