XHProf: Hierarchical Profiler Report

Diff Report: Run #51ec52a09990a: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec517fc2424: 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 #51ec52a09990a	Run #51ec517fc2424	Diff	Diff%
Number of Function Calls	170	170	0	0.0%
Incl. Wall Time (microsec)	40,904	40,988	84	0.2%
Incl. Wall Time (microsec) per call	241	241	0	0.2%
Excl. Wall Time (microsec)	2,455	2,503	48	2.0%
Incl. CPU (microsecs)	22,079	21,994	-85	-0.4%
Incl. CPU (microsecs) per call	130	129	-1	-0.4%
Excl. CPU (microsec)	2,038	2,057	19	0.9%
Incl. MemUse (bytes)	1,112,064	1,111,520	-544	-0.0%
Incl. MemUse (bytes) per call	6,542	6,538	-3	-0.0%
Excl. MemUse (bytes)	-138,080	-138,072	8	0.0%
Incl. PeakMemUse (bytes)	704,288	710,776	6,488	0.9%
Incl. PeakMemUse (bytes) per call	4,143	4,181	38	0.9%
Excl. PeakMemUse (bytes)	45,528	45,560	32	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%	84	2.1%	-85	-2.0%	-544	-2.5%	6,488	28.2%
Exclusive Metrics Diff for Current Function			48	57.1%	19	22.4%	8	1.5%	32	0.5%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	-611	-727.4%	-189	-222.4%	-568	-104.4%	3,872	59.7%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	N/A%	428	509.5%	59	69.4%	0	0.0%	104	1.6%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	343	408.3%	80	94.1%	0	0.0%	88	1.4%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	321	382.1%	-3	-3.5%	0	0.0%	408	6.3%
Drupal\Core\Database\Driver\mysql\Insert::execute	0	N/A%	-176	-209.5%	-2	-2.4%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::getMultiple@1	0	N/A%	161	191.7%	57	67.1%	0	0.0%	0	0.0%
Drupal\Core\Database\Query\Delete::execute	0	N/A%	-141	-167.9%	11	12.9%	0	0.0%	360	5.5%
Drupal\Core\Database\Query\Select::execute	0	N/A%	-107	-127.4%	-72	-84.7%	0	0.0%	360	5.5%
Drupal\Core\Path\AliasManager::lookupPathSource	0	N/A%	-98	-116.7%	1	1.2%	0	0.0%	0	0.0%
db_query	0	N/A%	-92	-109.5%	-27	-31.8%	24	4.4%	248	3.8%
Drupal\Core\Database\Query\Update::execute	0	N/A%	76	90.5%	12	14.1%	0	0.0%	1,048	16.2%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	N/A%	-19	-22.6%	-8	-9.4%	0	0.0%	0	0.0%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	N/A%	-1	-1.2%	-4	-4.7%	0	0.0%	0	0.0%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	62	73.8%	-72	-84.7%	-472	-86.8%	3,736	57.6%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	-39	-46.4%	-55	-64.7%	0	0.0%	1,792	27.6%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	27	32.1%	10	11.8%	-32	-5.9%	-8	-0.1%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	-15	-17.9%	13	15.3%	-48	-8.8%	936	14.4%
PDO::lastInsertId	0	N/A%	1	1.2%	1	1.2%	0	0.0%	0	0.0%
PDOStatement::rowCount	0	N/A%	0	0.0%	-1	-1.2%	0	0.0%	0	0.0%