XHProf: Hierarchical Profiler Report

Diff Report: Run #52e49acfb0eb8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e49b394aea8: 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 #52e49acfb0eb8	Run #52e49b394aea8	Diff	Diff%
Number of Function Calls	94	95	1	1.1%
Incl. Wall Time (microsec)	22,362	22,795	433	1.9%
Incl. Wall Time (microsec) per call	238	240	2	0.9%
Excl. Wall Time (microsec)	1,402	1,436	34	2.4%
Incl. CPU (microsecs)	11,021	11,151	130	1.2%
Incl. CPU (microsecs) per call	117	117	0	0.1%
Excl. CPU (microsec)	1,159	1,179	20	1.7%
Incl. MemUse (bytes)	959,192	965,016	5,824	0.6%
Incl. MemUse (bytes) per call	10,204	10,158	-46	-0.5%
Excl. MemUse (bytes)	83,768	83,032	-736	-0.9%
Incl. PeakMemUse (bytes)	589,296	587,824	-1,472	-0.2%
Incl. PeakMemUse (bytes) per call	6,269	6,188	-81	-1.3%
Excl. PeakMemUse (bytes)	126,968	126,688	-280	-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	1	20.0%	433	39.0%	130	16.0%	5,824	22.5%	-1,472	-5.6%
Exclusive Metrics Diff for Current Function			34	7.9%	20	15.4%	-736	-12.6%	-280	-19.0%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	1	100.0%	191	44.1%	103	79.2%	5,848	100.4%	-184	-12.5%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	0.0%	169	39.0%	35	26.9%	-24	-0.4%	-432	-29.3%
Drupal\Core\Database\Query\Select::execute	0	0.0%	44	10.2%	9	6.9%	0	0.0%	40	2.7%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	0.0%	32	7.4%	-7	-5.4%	0	0.0%	-384	-26.1%
Drupal\Core\Path\AliasManager::lookupPathSource	0	0.0%	-6	-1.4%	-1	-0.8%	0	0.0%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	0.0%	3	0.7%	3	2.3%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	0.0%	1	0.2%	-8	-6.2%	0	0.0%	-168	-11.4%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	0.0%	-1	-0.2%	-4	-3.1%	0	0.0%	-344	-23.4%
*Child functions*
Drupal\Core\Database\Statement::execute	1	25.0%	368	85.0%	70	53.8%	4,840	83.1%	-600	-40.8%
Drupal\Core\Database\Connection::expandArguments	1	25.0%	-70	-16.2%	-70	-53.8%	8	0.1%	-152	-10.3%
Drupal\Core\Database\Connection::prepareQuery	1	25.0%	53	12.2%	52	40.0%	952	16.3%	-8	-0.5%
print_r	0	0.0%	39	9.0%	40	30.8%	0	0.0%	-112	-7.6%
Drupal\Core\Database\Connection::defaultOptions	1	25.0%	6	1.4%	15	11.5%	760	13.0%	-320	-21.7%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass	0	0.0%	3	0.7%	2	1.5%	0	0.0%	0	0.0%
Exception::__construct	0	0.0%	0	0.0%	-1	-0.8%	0	0.0%	0	0.0%
Exception::getMessage	0	0.0%	0	0.0%	2	1.5%	0	0.0%	0	0.0%
Exception::getCode	0	0.0%	0	0.0%	-1	-0.8%	0	0.0%	0	0.0%
substr	0	0.0%	0	0.0%	1	0.8%	0	0.0%	0	0.0%