XHProf: Hierarchical Profiler Report

Diff Report: Run #52e4a1fd8a982: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e4a1c03557c: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::query

Drupal\Core\Database\Connection::query	Run #52e4a1fd8a982	Run #52e4a1c03557c	Diff	Diff%
Number of Function Calls	88	88	0	0.0%
Incl. Wall Time (microsec)	20,845	20,808	-37	-0.2%
Incl. Wall Time (microsec) per call	237	236	-0	-0.2%
Excl. Wall Time (microsec)	1,382	1,329	-53	-3.8%
Incl. CPU (microsecs)	10,325	10,302	-23	-0.2%
Incl. CPU (microsecs) per call	117	117	-0	-0.2%
Excl. CPU (microsec)	1,125	1,085	-40	-3.6%
Incl. MemUse (bytes)	924,096	924,096	0	0.0%
Incl. MemUse (bytes) per call	10,501	10,501	0	0.0%
Excl. MemUse (bytes)	88,384	88,384	0	0.0%
Incl. PeakMemUse (bytes)	573,648	573,648	0	0.0%
Incl. PeakMemUse (bytes) per call	6,519	6,519	0	0.0%
Excl. PeakMemUse (bytes)	125,456	125,456	0	0.0%

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%	-37	-9.2%	-23	-6.2%	0	N/A%	0	N/A%
Exclusive Metrics Diff for Current Function			-53	-143.2%	-40	-173.9%	0	N/A%	0	N/A%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	-203	-548.6%	-104	-452.2%	0	N/A%	0	N/A%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	N/A%	72	194.6%	14	60.9%	0	N/A%	0	N/A%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	57	154.1%	36	156.5%	0	N/A%	0	N/A%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	N/A%	19	51.4%	21	91.3%	0	N/A%	0	N/A%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	N/A%	7	18.9%	15	65.2%	0	N/A%	0	N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	6	16.2%	-6	-26.1%	0	N/A%	0	N/A%
Drupal\Core\Path\AliasManager::lookupPathSource	0	N/A%	5	13.5%	0	0.0%	0	N/A%	0	N/A%
Drupal\Core\Database\Query\Select::execute	0	N/A%	0	0.0%	1	4.3%	0	N/A%	0	N/A%
*Child functions*
Drupal\Core\Database\Connection::expandArguments	0	N/A%	20	54.1%	10	43.5%	0	N/A%	0	N/A%
Drupal\Core\Database\Statement::execute	0	N/A%	-11	-29.7%	-8	-34.8%	0	N/A%	0	N/A%
print_r	0	N/A%	-9	-24.3%	-10	-43.5%	0	N/A%	0	N/A%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	9	24.3%	14	60.9%	0	N/A%	0	N/A%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	8	21.6%	11	47.8%	0	N/A%	0	N/A%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass	0	N/A%	-1	-2.7%	-2	-8.7%	0	N/A%	0	N/A%
Exception::__construct	0	N/A%	0	0.0%	-1	-4.3%	0	N/A%	0	N/A%
Exception::getMessage	0	N/A%	0	0.0%	1	4.3%	0	N/A%	0	N/A%
Exception::getCode	0	N/A%	0	0.0%	0	0.0%	0	N/A%	0	N/A%
substr	0	N/A%	0	0.0%	2	8.7%	0	N/A%	0	N/A%