XHProf: Hierarchical Profiler Report

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