XHProf: Hierarchical Profiler Report

Diff Report: Run #51ec3b81ad265: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec3c1813b11: 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 #51ec3b81ad265	Run #51ec3c1813b11	Diff	Diff%
Number of Function Calls	135	135	0	0.0%
Incl. Wall Time (microsec)	30,521	28,005	-2,516	-8.2%
Incl. Wall Time (microsec) per call	226	207	-19	-8.2%
Excl. Wall Time (microsec)	1,955	1,937	-18	-0.9%
Incl. CPU (microsecs)	17,676	16,522	-1,154	-6.5%
Incl. CPU (microsecs) per call	131	122	-9	-6.5%
Excl. CPU (microsec)	1,615	1,610	-5	-0.3%
Incl. MemUse (bytes)	898,000	898,000	0	0.0%
Incl. MemUse (bytes) per call	6,652	6,652	0	0.0%
Excl. MemUse (bytes)	-110,360	-110,360	0	0.0%
Incl. PeakMemUse (bytes)	631,008	630,952	-56	-0.0%
Incl. PeakMemUse (bytes) per call	4,674	4,674	-0	-0.0%
Excl. PeakMemUse (bytes)	40,160	40,112	-48	-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%	-2,516	-102.3%	-1,154	-152.8%	0	N/A%	-56	N/A%
Exclusive Metrics Diff for Current Function			-18	-0.7%	-5	-0.4%	0	N/A%	-48	-85.7%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	-2,199	-87.4%	-885	-76.7%	0	N/A%	0	0.0%
Drupal\Core\Database\Query\Select::execute	0	N/A%	-324	-12.9%	-119	-10.3%	0	N/A%	0	0.0%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	116	4.6%	-64	-5.5%	0	N/A%	0	0.0%
Drupal\Core\Database\Driver\mysql\Insert::execute	0	N/A%	-106	-4.2%	14	1.2%	0	N/A%	-56	-100.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	-76	-3.0%	23	2.0%	0	N/A%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByPath	0	N/A%	-73	-2.9%	-118	-10.2%	0	N/A%	0	0.0%
Drupal\Core\Database\Query\Delete::execute	0	N/A%	60	2.4%	-6	-0.5%	0	N/A%	0	0.0%
Drupal\Core\Path\AliasManager::lookupPathSource	0	N/A%	46	1.8%	-4	-0.3%	0	N/A%	0	0.0%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	N/A%	30	1.2%	17	1.5%	0	N/A%	0	0.0%
Drupal\Core\Database\Query\Update::execute	0	N/A%	10	0.4%	-8	-0.7%	0	N/A%	0	0.0%
Drupal\Core\Routing\RouteProvider::getRoutesByNames	0	N/A%	-2	-0.1%	2	0.2%	0	N/A%	0	0.0%
db_query	0	N/A%	2	0.1%	-6	-0.5%	0	N/A%	0	0.0%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	-2,313	-91.9%	-1,016	-88.0%	0	N/A%	-8	-14.3%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	-94	-3.7%	-84	-7.3%	0	N/A%	0	0.0%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	-49	-1.9%	-17	-1.5%	0	N/A%	0	0.0%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	-42	-1.7%	-32	-2.8%	0	N/A%	0	0.0%
PDOStatement::rowCount	0	N/A%	0	0.0%	0	0.0%	0	N/A%	0	0.0%
PDO::lastInsertId	0	N/A%	0	0.0%	0	0.0%	0	N/A%	0	0.0%