XHProf: Hierarchical Profiler Report

Diff Report: Run #51ec5ca916d7d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec5d631cb28: 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 #51ec5ca916d7d	Run #51ec5d631cb28	Diff	Diff%
Number of Function Calls	142	142	0	0.0%
Incl. Wall Time (microsec)	31,211	32,259	1,048	3.4%
Incl. Wall Time (microsec) per call	220	227	7	3.4%
Excl. Wall Time (microsec)	2,043	2,028	-15	-0.7%
Incl. CPU (microsecs)	18,333	18,270	-63	-0.3%
Incl. CPU (microsecs) per call	129	129	-0	-0.3%
Excl. CPU (microsec)	1,677	1,681	4	0.2%
Incl. MemUse (bytes)	875,736	875,704	-32	-0.0%
Incl. MemUse (bytes) per call	6,167	6,167	-0	-0.0%
Excl. MemUse (bytes)	-112,232	-112,232	0	0.0%
Incl. PeakMemUse (bytes)	602,112	598,208	-3,904	-0.6%
Incl. PeakMemUse (bytes) per call	4,240	4,213	-27	-0.6%
Excl. PeakMemUse (bytes)	41,440	40,888	-552	-1.3%

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%	1,048	13.1%	-63	-0.7%	-32	-0.0%	-3,904	-5.9%
Exclusive Metrics Diff for Current Function			-15	-1.4%	4	6.3%	0	0.0%	-552	-14.1%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	379	36.2%	87	138.1%	0	0.0%	160	4.1%
Drupal\Core\Database\Query\Select::execute	0	N/A%	247	23.6%	103	163.5%	0	0.0%	-24	-0.6%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	140	13.4%	-24	-38.1%	0	0.0%	-288	-7.4%
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	106	10.1%	-146	-231.7%	-32	-100.0%	-3,496	-89.5%
Drupal\Core\Database\Query\Delete::execute	0	N/A%	105	10.0%	-22	-34.9%	0	0.0%	0	0.0%
Drupal\Core\Database\Driver\mysql\Insert::execute	0	N/A%	49	4.7%	12	19.0%	0	0.0%	0	0.0%
Drupal\Core\Path\AliasManager::lookupPathSource	0	N/A%	48	4.6%	-4	-6.3%	0	0.0%	0	0.0%
db_query	0	N/A%	-43	-4.1%	20	31.7%	0	0.0%	0	0.0%
Drupal\Core\Database\Query\Update::execute	0	N/A%	-26	-2.5%	-18	-28.6%	0	0.0%	-320	-8.2%
Drupal\Core\Cache\DatabaseBackend::getMultiple@1	0	N/A%	24	2.3%	-53	-84.1%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	N/A%	21	2.0%	-18	-28.6%	0	0.0%	64	1.6%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	N/A%	-1	-0.1%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	N/A%	-1	-0.1%	0	0.0%	0	0.0%	0	0.0%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	1,084	103.4%	-57	-90.5%	-24	-75.0%	-1,664	-42.6%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	-22	-2.1%	-24	-38.1%	0	0.0%	-856	-21.9%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	21	2.0%	33	52.4%	-8	-25.0%	-120	-3.1%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	-20	-1.9%	-19	-30.2%	0	0.0%	-712	-18.2%
PDOStatement::rowCount	0	N/A%	0	0.0%	-2	-3.2%	0	0.0%	0	0.0%
PDO::lastInsertId	0	N/A%	0	0.0%	2	3.2%	0	0.0%	0	0.0%