Diff Report
Run #5391fc871e91d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #5391fd5a43e70: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::select

Drupal\Core\Database\Connection::selectRun #5391fc871e91dRun #5391fd5a43e70DiffDiff%
Number of Function Calls15 15 0 0.0%
Incl. Wall Time (microsec)1,539 1,581 42 2.7%
Incl. Wall Time (microsec) per call 103 105 3 2.7%
Excl. Wall Time (microsec)152 157 5 3.3%
Incl. CPU (microsecs)1,571 1,613 42 2.7%
Incl. CPU (microsecs) per call 105 108 3 2.7%
Excl. CPU (microsec)154 162 8 5.2%
Incl. MemUse (bytes)125,856 125,860 4 0.0%
Incl. MemUse (bytes) per call 8,390 8,391 0 0.0%
Excl. MemUse (bytes)6,704 6,704 0 0.0%
Incl. PeakMemUse (bytes)107,952 107,944 -8 -0.0%
Incl. PeakMemUse (bytes) per call 7,197 7,196 -1 -0.0%
Excl. PeakMemUse (bytes)4,064 4,064 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Connection::select [View Callgraph Diff]


Function NameCalls DiffCalls
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::select0 N/A% 42 2.5% 42 10.5% 4 0.0% -8 -0.0%
Exclusive Metrics Diff for Current Function5 11.9% 8 19.0% 0 0.0% 0 0.0%
Parent functions
Drupal\Core\Entity\Query\Sql\Query::prepare0 N/A% 23 54.8% 24 57.1% 0 0.0% 0 0.0%
Drupal\Core\Database\Query\Merge::execute0 N/A% 16 38.1% 17 40.5% 0 0.0% 0 0.0%
Drupal\Core\Entity\EntityDatabaseStorage::buildQuery0 N/A% 16 38.1% 16 38.1% 0 0.0% 0 0.0%
db_select0 N/A% -6 -14.3% -3 -7.1% 0 0.0% 0 0.0%
Drupal\Core\Entity\ContentEntityDatabaseStorage::buildQuery0 N/A% -6 -14.3% -10 -23.8% 4 100.0% -8 -100.0%
Drupal\comment\CommentStatistics::read0 N/A% -3 -7.1% -4 -9.5% 0 0.0% 0 0.0%
Drupal\Core\Entity\ContentEntityDatabaseStorage::attachPropertyData0 N/A% 3 7.1% 3 7.1% 0 0.0% 0 0.0%
Drupal\Core\Database\Query\Select::countQuery0 N/A% -1 -2.4% -1 -2.4% 0 0.0% 0 0.0%
Child functions
Drupal\Core\Database\Query\Select::__construct0 N/A% 41 97.6% 40 95.2% 0 0.0% -12 -150.0%
Drupal\Core\Database\Connection::getDriverClass0 N/A% -4 -9.5% -6 -14.3% 4 100.0% 4 50.0%