XHProf: Hierarchical Profiler Report

Diff Report: Run #51ec3c5ab9ae4: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec3b81ad265: 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 #51ec3c5ab9ae4	Run #51ec3b81ad265	Diff	Diff%
Number of Function Calls	135	135	0	0.0%
Incl. Wall Time (microsec)	29,211	30,521	1,310	4.5%
Incl. Wall Time (microsec) per call	216	226	10	4.5%
Excl. Wall Time (microsec)	1,956	1,955	-1	-0.1%
Incl. CPU (microsecs)	16,863	17,676	813	4.8%
Incl. CPU (microsecs) per call	125	131	6	4.8%
Excl. CPU (microsec)	1,582	1,615	33	2.1%
Incl. MemUse (bytes)	898,016	898,000	-16	-0.0%
Incl. MemUse (bytes) per call	6,652	6,652	-0	-0.0%
Excl. MemUse (bytes)	-110,416	-110,360	56	0.1%
Incl. PeakMemUse (bytes)	631,312	631,008	-304	-0.0%
Incl. PeakMemUse (bytes) per call	4,676	4,674	-2	-0.0%
Excl. PeakMemUse (bytes)	40,136	40,160	24	0.1%

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%	1,310	350.3%	813	76.8%	-16	-0.0%	-304	-0.8%
Exclusive Metrics Diff for Current Function			-1	-0.1%	33	4.1%	56	350.0%	24	7.9%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	1,511	115.3%	757	93.1%	-24	-150.0%	-144	-47.4%
Drupal\Core\Database\Query\Delete::execute	0	N/A%	-149	-11.4%	1	0.1%	0	0.0%	0	0.0%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	-102	-7.8%	-2	-0.2%	0	0.0%	0	0.0%
Drupal\Core\Database\Query\Select::execute	0	N/A%	80	6.1%	51	6.3%	8	50.0%	-48	-15.8%
Drupal\Core\Database\Query\Update::execute	0	N/A%	-75	-5.7%	-11	-1.4%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	N/A%	64	4.9%	61	7.5%	0	0.0%	88	28.9%
Drupal\Core\Path\AliasManager::lookupPathSource	0	N/A%	-18	-1.4%	-7	-0.9%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	N/A%	3	0.2%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	-2	-0.2%	-24	-3.0%	0	0.0%	0	0.0%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	N/A%	-1	-0.1%	-1	-0.1%	0	0.0%	0	0.0%
db_query	0	N/A%	-1	-0.1%	-2	-0.2%	0	0.0%	0	0.0%
Drupal\Core\Database\Driver\mysql\Insert::execute	0	N/A%	0	0.0%	-10	-1.2%	0	0.0%	-200	-65.8%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	1,162	88.7%	649	79.8%	-16	-100.0%	-304	-100.0%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	84	6.4%	91	11.2%	0	0.0%	80	26.3%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	38	2.9%	45	5.5%	-56	-350.0%	-56	-18.4%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	27	2.1%	-4	-0.5%	0	0.0%	-48	-15.8%
PDOStatement::rowCount	0	N/A%	0	0.0%	-1	-0.1%	0	0.0%	0	0.0%
PDO::lastInsertId	0	N/A%	0	0.0%	0	0.0%	0	0.0%	0	0.0%