XHProf: Hierarchical Profiler Report

Diff Report: Run #52f2e60305388: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52f2e62091f2c: 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 #52f2e62091f2c	Diff	Diff%
Number of Function Calls	158	158	0	0.0%
Incl. Wall Time (microsec)	39,270	38,110	-1,160	-3.0%
Incl. Wall Time (microsec) per call	249	241	-7	-3.0%
Excl. Wall Time (microsec)	2,061	2,044	-17	-0.8%
Incl. CPU (microsecs)	18,026	18,211	185	1.0%
Incl. CPU (microsecs) per call	114	115	1	1.0%
Excl. CPU (microsec)	1,659	1,611	-48	-2.9%
Incl. MemUse (bytes)	940,104	940,024	-80	-0.0%
Incl. MemUse (bytes) per call	5,950	5,950	-1	-0.0%
Excl. MemUse (bytes)	-125,976	-125,976	0	0.0%
Incl. PeakMemUse (bytes)	520,416	520,480	64	0.0%
Incl. PeakMemUse (bytes) per call	3,294	3,294	0	0.0%
Excl. PeakMemUse (bytes)	31,984	31,944	-40	-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%	-1,160	-82.8%	185	6.7%	-80	-38.5%	64	8.9%
Exclusive Metrics Diff for Current Function			-17	-1.5%	-48	-25.9%	0	0.0%	-40	-62.5%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	-459	-39.6%	238	128.6%	-48	-60.0%	-32	-50.0%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	N/A%	-336	-29.0%	-98	-53.0%	-24	-30.0%	0	0.0%
Drupal\Core\Path\AliasManager::lookupPathSource	0	N/A%	290	25.0%	141	76.2%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	N/A%	-191	-16.5%	-46	-24.9%	0	0.0%	0	0.0%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	-177	-15.3%	93	50.3%	8	10.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	-156	-13.4%	-68	-36.8%	-16	-20.0%	96	150.0%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	N/A%	-95	-8.2%	-71	-38.4%	0	0.0%	0	0.0%
Drupal\Core\Database\Query\Select::execute	0	N/A%	-39	-3.4%	-15	-8.1%	0	0.0%	0	0.0%
Drupal\Core\Database\Driver\mysql\Insert::execute	0	N/A%	3	0.3%	11	5.9%	0	0.0%	0	0.0%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	-1,119	-96.5%	219	118.4%	-64	-80.0%	-16	-25.0%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	-51	-4.4%	-43	-23.2%	0	0.0%	-16	-25.0%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	23	2.0%	22	11.9%	-16	-20.0%	136	212.5%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	4	0.3%	34	18.4%	0	0.0%	0	0.0%
PDO::lastInsertId	0	N/A%	0	0.0%	1	0.5%	0	0.0%	0	0.0%