XHProf: Hierarchical Profiler Report

Diff Report: Run #51978cc86c728: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51978d4d92dd9: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Database\Connection::query

Drupal\Core\Database\Connection::query	Run #51978cc86c728	Run #51978d4d92dd9	Diff	Diff%
Number of Function Calls	133	134	1	0.8%
Incl. Wall Time (microsec)	48,286	49,635	1,349	2.8%
Incl. Wall Time (microsec) per call	363	370	7	2.0%
Excl. Wall Time (microsec)	1,934	2,055	121	6.3%
Incl. CPU (microsecs)	18,539	19,603	1,064	5.7%
Incl. CPU (microsecs) per call	139	146	7	5.0%
Excl. CPU (microsec)	1,627	1,682	55	3.4%
Incl. MemUse (bytes)	875,904	882,064	6,160	0.7%
Incl. MemUse (bytes) per call	6,586	6,583	-3	-0.0%
Excl. MemUse (bytes)	-106,800	-107,648	-848	-0.8%
Incl. PeakMemUse (bytes)	389,496	395,760	6,264	1.6%
Incl. PeakMemUse (bytes) per call	2,929	2,953	25	0.8%
Excl. PeakMemUse (bytes)	26,640	27,144	504	1.9%

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%	1,349	541.8%	1,064	879.3%	6,160	28.4%	6,264	26.8%
Exclusive Metrics Diff for Current Function			121	9.0%	55	5.2%	-848	-13.8%	504	8.0%
*Parent functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	1	100.0%	880	65.2%	913	85.8%	6,168	100.1%	6,192	98.9%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	0.0%	226	16.8%	82	7.7%	0	0.0%	-56	-0.9%
Drupal\Core\Cache\DatabaseBackend::getMultiple@1	0	0.0%	194	14.4%	1	0.1%	8	0.1%	-56	-0.9%
Drupal\Core\Database\Driver\mysql\Insert::execute	0	0.0%	127	9.4%	25	2.3%	0	0.0%	64	1.0%
Drupal\Core\Database\Query\Select::execute	0	0.0%	-88	-6.5%	-15	-1.4%	-16	-0.3%	72	1.1%
db_query	0	0.0%	-87	-6.4%	14	1.3%	0	0.0%	0	0.0%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	0.0%	63	4.7%	5	0.5%	0	0.0%	48	0.8%
Drupal\Core\Routing\RouteProvider::getRouteCollectionForRequest	0	0.0%	21	1.6%	18	1.7%	0	0.0%	0	0.0%
Drupal\Core\Path\AliasManager::lookupPathSource	0	0.0%	12	0.9%	14	1.3%	0	0.0%	0	0.0%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	0.0%	1	0.1%	7	0.7%	0	0.0%	0	0.0%
*Child functions*
Drupal\Core\Database\Statement::execute	1	25.0%	1,319	97.8%	1,070	100.6%	5,216	84.7%	3,136	50.1%
Drupal\Core\Database\Connection::prepareQuery	1	25.0%	-52	-3.9%	-53	-5.0%	944	15.3%	544	8.7%
Drupal\Core\Database\Connection::expandArguments	1	25.0%	-28	-2.1%	-12	-1.1%	0	0.0%	1,320	21.1%
Drupal\Core\Database\Connection::defaultOptions	1	25.0%	-13	-1.0%	-1	-0.1%	848	13.8%	760	12.1%
PDO::lastInsertId	0	0.0%	2	0.1%	5	0.5%	0	0.0%	0	0.0%