XHProf: Hierarchical Profiler Report

Diff Report: Run #52e4a222581ef: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e4a1c03557c: 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 #52e4a222581ef	Run #52e4a1c03557c	Diff	Diff%
Number of Function Calls	88	88	0	0.0%
Incl. Wall Time (microsec)	21,122	20,808	-314	-1.5%
Incl. Wall Time (microsec) per call	240	236	-4	-1.5%
Excl. Wall Time (microsec)	1,336	1,329	-7	-0.5%
Incl. CPU (microsecs)	10,291	10,302	11	0.1%
Incl. CPU (microsecs) per call	117	117	0	0.1%
Excl. CPU (microsec)	1,133	1,085	-48	-4.2%
Incl. MemUse (bytes)	924,104	924,096	-8	-0.0%
Incl. MemUse (bytes) per call	10,501	10,501	-0	-0.0%
Excl. MemUse (bytes)	88,400	88,384	-16	-0.0%
Incl. PeakMemUse (bytes)	569,440	573,648	4,208	0.7%
Incl. PeakMemUse (bytes) per call	6,471	6,519	48	0.7%
Excl. PeakMemUse (bytes)	124,464	125,456	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%