XHProf: Hierarchical Profiler Report

Diff Report: Run #52f2e60305388: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52f2e62cef49a: 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 #52f2e60305388	Run #52f2e62cef49a	Diff	Diff%
Number of Function Calls	158	158	0	0.0%
Incl. Wall Time (microsec)	39,270	38,948	-322	-0.8%
Incl. Wall Time (microsec) per call	249	247	-2	-0.8%
Excl. Wall Time (microsec)	2,061	2,060	-1	-0.0%
Incl. CPU (microsecs)	18,026	18,113	87	0.5%
Incl. CPU (microsecs) per call	114	115	1	0.5%
Excl. CPU (microsec)	1,659	1,695	36	2.2%
Incl. MemUse (bytes)	940,104	940,072	-32	-0.0%
Incl. MemUse (bytes) per call	5,950	5,950	-0	-0.0%
Excl. MemUse (bytes)	-125,976	-125,976	0	0.0%
Incl. PeakMemUse (bytes)	520,416	520,224	-192	-0.0%
Incl. PeakMemUse (bytes) per call	3,294	3,293	-1	-0.0%
Excl. PeakMemUse (bytes)	31,984	31,920	-64	-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%	-322	-14.1%	87	4.2%	-32	-0.1%	-192	-0.3%
Exclusive Metrics Diff for Current Function			-1	-0.3%	36	41.4%	0	0.0%	-64	-33.3%
*Parent functions*
Drupal\Core\Path\AliasManager::lookupPathSource	0	N/A%	404	125.5%	151	173.6%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	359	111.5%	333	382.8%	-32	-100.0%	-128	-66.7%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	N/A%	-350	-108.7%	-105	-120.7%	0	0.0%	0	0.0%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	-235	-73.0%	30	34.5%	8	25.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	N/A%	-152	-47.2%	-57	-65.5%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	-148	-46.0%	-81	-93.1%	-8	-25.0%	-64	-33.3%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	N/A%	-92	-28.6%	-74	-85.1%	0	0.0%	0	0.0%
Drupal\Core\Database\Query\Select::execute	0	N/A%	-89	-27.6%	-90	-103.4%	0	0.0%	0	0.0%
Drupal\Core\Database\Driver\mysql\Insert::execute	0	N/A%	-19	-5.9%	-20	-23.0%	0	0.0%	0	0.0%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	-386	-119.9%	-8	-9.2%	8	25.0%	-128	-66.7%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	116	36.0%	112	128.7%	-40	-125.0%	0	0.0%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	-56	-17.4%	-63	-72.4%	0	0.0%	0	0.0%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	5	1.6%	11	12.6%	0	0.0%	0	0.0%
PDO::lastInsertId	0	N/A%	0	0.0%	-1	-1.1%	0	0.0%	0	0.0%