Diff Report
Run #519d4cd4e396d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d4dc9980f7: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Query\Select::preExecute

Drupal\Core\Database\Query\Select::preExecuteRun #519d4cd4e396dRun #519d4dc9980f7DiffDiff%
Number of Function Calls14 14 0 0.0%
Incl. Wall Time (microsec)2,158 2,206 48 2.2%
Incl. Wall Time (microsec) per call 154 158 3 2.2%
Excl. Wall Time (microsec)280 239 -41 -14.6%
Incl. CPU (microsecs)2,181 2,225 44 2.0%
Incl. CPU (microsecs) per call 156 159 3 2.0%
Excl. CPU (microsec)273 217 -56 -20.5%
Incl. MemUse (bytes)29,292 29,292 0 0.0%
Incl. MemUse (bytes) per call 2,092 2,092 0 0.0%
Excl. MemUse (bytes)2,236 2,236 0 0.0%
Incl. PeakMemUse (bytes)38,620 38,656 36 0.1%
Incl. PeakMemUse (bytes) per call 2,759 2,761 3 0.1%
Excl. PeakMemUse (bytes)2,776 2,912 136 4.9%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Query\Select::preExecute [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::preExecute0 N/A% 48 0.3% 44 0.3% 0 0.0% 36 5.6%
Exclusive Metrics Diff for Current Function-41 -85.4% -56 -127.3% 0 N/A% 136 377.8%
Parent functions
Drupal\views\Plugin\views\query\Sql::execute0 N/A% 98 204.2% 96 218.2% 0 N/A% 36 100.0%
Drupal\Core\Database\Query\Select::execute0 N/A% -50 -104.2% -52 -118.2% 0 N/A% 0 0.0%
Drupal\Core\Database\Query\Select::__toString0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 0.0%
Child functions
drupal_alter0 N/A% 91 189.6% 96 218.2% 0 N/A% -100 -277.8%
Drupal\Core\Database\Query\Select::preExecute@10 N/A% -1 -2.1% 1 2.3% 0 N/A% 0 0.0%
Drupal\Core\Database\Query\Select::isPrepared0 N/A% -1 -2.1% 3 6.8% 0 N/A% 0 0.0%