Diff Report
Run #539205a48c548: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539206aca7ae8: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Query\Select::addExpression

Drupal\Core\Database\Query\Select::addExpressionRun #539205a48c548Run #539206aca7ae8DiffDiff%
Number of Function Calls5 5 0 0.0%
Incl. Wall Time (microsec)23 31 8 34.8%
Incl. Wall Time (microsec) per call 5 6 2 34.8%
Excl. Wall Time (microsec)23 31 8 34.8%
Incl. CPU (microsecs)34 50 16 47.1%
Incl. CPU (microsecs) per call 7 10 3 47.1%
Excl. CPU (microsec)34 50 16 47.1%
Incl. MemUse (bytes)4,456 4,456 0 0.0%
Incl. MemUse (bytes) per call 891 891 0 0.0%
Excl. MemUse (bytes)4,456 4,456 0 0.0%
Incl. PeakMemUse (bytes)2,272 2,272 0 0.0%
Incl. PeakMemUse (bytes) per call 454 454 0 0.0%
Excl. PeakMemUse (bytes)2,272 2,272 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Query\Select::addExpression [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\Query\Select::addExpression0 N/A% 8 0.2% 16 0.4% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function8 100.0% 16 100.0% 0 N/A% 0 N/A%
Parent functions
Drupal\Core\Database\Query\Merge::execute0 N/A% 9 112.5% 8 50.0% 0 N/A% 0 N/A%
Drupal\Core\Entity\ContentEntityDatabaseStorage::buildQuery0 N/A% -1 -12.5% 10 62.5% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Select::prepareCountQuery0 N/A% 0 0.0% -1 -6.2% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Select::countQuery0 N/A% 0 0.0% -1 -6.2% 0 N/A% 0 N/A%