XHProf: Hierarchical Profiler Report

Diff Report: Run #51ec3c1813b11: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec3b81ad265: 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 #51ec3c1813b11	Run #51ec3b81ad265	Diff	Diff%
Number of Function Calls	135	135	0	0.0%
Incl. Wall Time (microsec)	28,005	30,521	2,516	9.0%
Incl. Wall Time (microsec) per call	207	226	19	9.0%
Excl. Wall Time (microsec)	1,937	1,955	18	0.9%
Incl. CPU (microsecs)	16,522	17,676	1,154	7.0%
Incl. CPU (microsecs) per call	122	131	9	7.0%
Excl. CPU (microsec)	1,610	1,615	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)	630,952	631,008	56	0.0%
Incl. PeakMemUse (bytes) per call	4,674	4,674	0	0.0%
Excl. PeakMemUse (bytes)	40,112	40,160	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%