XHProf: Hierarchical Profiler Report

Diff Report: Run #52e4a1c03557c: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e4a222581ef: 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 #52e4a1c03557c	Run #52e4a222581ef	Diff	Diff%
Number of Function Calls	88	88	0	0.0%
Incl. Wall Time (microsec)	20,808	21,122	314	1.5%
Incl. Wall Time (microsec) per call	236	240	4	1.5%
Excl. Wall Time (microsec)	1,329	1,336	7	0.5%
Incl. CPU (microsecs)	10,302	10,291	-11	-0.1%
Incl. CPU (microsecs) per call	117	117	-0	-0.1%
Excl. CPU (microsec)	1,085	1,133	48	4.4%
Incl. MemUse (bytes)	924,096	924,104	8	0.0%
Incl. MemUse (bytes) per call	10,501	10,501	0	0.0%
Excl. MemUse (bytes)	88,384	88,400	16	0.0%
Incl. PeakMemUse (bytes)	573,648	569,440	-4,208	-0.7%
Incl. PeakMemUse (bytes) per call	6,519	6,471	-48	-0.7%
Excl. PeakMemUse (bytes)	125,456	124,464	-992	-0.8%

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%	314	63.7%	-11	-5.2%	8	0.0%	-4,208	-15.9%
Exclusive Metrics Diff for Current Function			7	2.2%	48	436.4%	16	200.0%	-992	-23.6%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	326	103.8%	50	454.5%	8	100.0%	-2,944	-70.0%
Drupal\Core\Path\AliasManager::lookupPathSource	0	N/A%	191	60.8%	20	181.8%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	N/A%	-65	-20.7%	-19	-172.7%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	N/A%	-64	-20.4%	-19	-172.7%	-24	-300.0%	-352	-8.4%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	-61	-19.4%	-31	-281.8%	8	100.0%	-384	-9.1%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	N/A%	-19	-6.1%	-22	-200.0%	0	0.0%	-344	-8.2%
Drupal\Core\Database\Query\Select::execute	0	N/A%	5	1.6%	6	54.5%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	1	0.3%	4	36.4%	16	200.0%	-184	-4.4%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	216	68.8%	-114	-1036.4%	-32	-400.0%	-336	-8.0%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	38	12.1%	15	136.4%	8	100.0%	-80	-1.9%
print_r	0	N/A%	31	9.9%	33	300.0%	24	300.0%	-32	-0.8%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	9	2.9%	19	172.7%	-16	-200.0%	-1,760	-41.8%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass	0	N/A%	8	2.5%	8	72.7%	0	0.0%	24	0.6%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	5	1.6%	-19	-172.7%	8	100.0%	-1,032	-24.5%
Exception::__construct	0	N/A%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Exception::getMessage	0	N/A%	0	0.0%	1	9.1%	0	0.0%	0	0.0%
Exception::getCode	0	N/A%	0	0.0%	-1	-9.1%	0	0.0%	0	0.0%
substr	0	N/A%	0	0.0%	-1	-9.1%	0	0.0%	0	0.0%