XHProf: Hierarchical Profiler Report

Diff Report: Run #51981e3ae1e6c: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51981beb768ad: 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 #51981e3ae1e6c	Run #51981beb768ad	Diff	Diff%
Number of Function Calls	124	124	0	0.0%
Incl. Wall Time (microsec)	45,836	46,354	518	1.1%
Incl. Wall Time (microsec) per call	370	374	4	1.1%
Excl. Wall Time (microsec)	1,854	1,895	41	2.2%
Incl. CPU (microsecs)	18,029	18,314	285	1.6%
Incl. CPU (microsecs) per call	145	148	2	1.6%
Excl. CPU (microsec)	1,551	1,556	5	0.3%
Incl. MemUse (bytes)	811,160	811,184	24	0.0%
Incl. MemUse (bytes) per call	6,542	6,542	0	0.0%
Excl. MemUse (bytes)	-99,232	-99,256	-24	-0.0%
Incl. PeakMemUse (bytes)	390,040	389,848	-192	-0.0%
Incl. PeakMemUse (bytes) per call	3,145	3,144	-2	-0.0%
Excl. PeakMemUse (bytes)	27,304	27,304	0	0.0%

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%	518	421.1%	285	53.6%	24	0.1%	-192	-0.7%
Exclusive Metrics Diff for Current Function			41	7.9%	5	1.8%	-24	-100.0%	0	0.0%
*Parent functions*
Drupal\Core\Database\Query\Select::execute	0	N/A%	360	69.5%	241	84.6%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::getMultiple	0	N/A%	216	41.7%	-51	-17.9%	8	33.3%	-120	-62.5%
Drupal\Core\KeyValueStore\DatabaseStorage::getMultiple	0	N/A%	-100	-19.3%	24	8.4%	0	0.0%	-56	-29.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags	0	N/A%	92	17.8%	42	14.7%	0	0.0%	0	0.0%
db_query	0	N/A%	-52	-10.0%	3	1.1%	0	0.0%	0	0.0%
Drupal\Core\Database\Driver\mysql\Insert::execute	0	N/A%	27	5.2%	51	17.9%	0	0.0%	0	0.0%
Drupal\Core\Cache\DatabaseBackend::getMultiple@1	0	N/A%	-20	-3.9%	-24	-8.4%	16	66.7%	16	8.3%
Drupal\Core\Routing\RouteProvider::getRouteCollectionForRequest	0	N/A%	-6	-1.2%	-1	-0.4%	0	0.0%	0	0.0%
Drupal\Core\Path\AliasManager::lookupPathSource	0	N/A%	2	0.4%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Database\Driver\mysql\Connection::queryRange	0	N/A%	-1	-0.2%	0	0.0%	0	0.0%	-32	-16.7%
*Child functions*
Drupal\Core\Database\Statement::execute	0	N/A%	500	96.5%	274	96.1%	24	100.0%	-136	-70.8%
Drupal\Core\Database\Connection::expandArguments	0	N/A%	50	9.7%	61	21.4%	0	0.0%	-56	-29.2%
Drupal\Core\Database\Connection::defaultOptions	0	N/A%	-41	-7.9%	-34	-11.9%	24	100.0%	0	0.0%
Drupal\Core\Database\Connection::prepareQuery	0	N/A%	-35	-6.8%	-27	-9.5%	0	0.0%	0	0.0%
PDO::lastInsertId	0	N/A%	3	0.6%	6	2.1%	0	0.0%	0	0.0%