Diff Report
Run #531ccb2cb8e3d: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #531ccbd4518b6: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Database\Connection::select

Drupal\Core\Database\Connection::selectRun #531ccb2cb8e3dRun #531ccbd4518b6DiffDiff%
Number of Function Calls30 30 0 0.0%
Incl. Wall Time (microsec)2,906 2,958 52 1.8%
Incl. Wall Time (microsec) per call 97 99 2 1.8%
Excl. Wall Time (microsec)205 195 -10 -4.9%
Incl. CPU (microsecs)2,942 2,991 49 1.7%
Incl. CPU (microsecs) per call 98 100 2 1.7%
Excl. CPU (microsec)176 177 1 0.6%
Incl. MemUse (bytes)489,088 489,032 -56 -0.0%
Incl. MemUse (bytes) per call 16,303 16,301 -2 -0.0%
Excl. MemUse (bytes)13,640 13,640 0 0.0%
Incl. PeakMemUse (bytes)402,696 402,952 256 0.1%
Incl. PeakMemUse (bytes) per call 13,423 13,432 9 0.1%
Excl. PeakMemUse (bytes)5,784 5,952 168 2.9%

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% 52 53.1% 49 18.8% -56 -0.1% 256 0.6%
Exclusive Metrics Diff for Current Function-10 -19.2% 1 2.0% 0 0.0% 168 65.6%
Parent functions
Drupal\Core\Entity\Query\Sql\Query::prepare0 N/A% 37 71.2% 37 75.5% -56 -100.0% 256 100.0%
Drupal\Core\Entity\DatabaseStorageController::buildQuery0 N/A% 19 36.5% 16 32.7% 0 0.0% 0 0.0%
db_select0 N/A% -2 -3.8% -2 -4.1% 0 0.0% 0 0.0%
Drupal\Core\Entity\FieldableDatabaseStorageController::attachPropertyData0 N/A% -1 -1.9% -1 -2.0% 0 0.0% 0 0.0%
Drupal\Core\Entity\FieldableDatabaseStorageController::buildQuery0 N/A% -1 -1.9% -1 -2.0% 0 0.0% 0 0.0%
Child functions
Drupal\Core\Database\Query\Select::__construct0 N/A% 50 96.2% 50 102.0% -8 -14.3% 120 46.9%
Drupal\Core\Database\Connection::getDriverClass0 N/A% 12 23.1% -2 -4.1% -48 -85.7% -32 -12.5%