Diff Report
Run #531ccbd4518b6: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #531ccb2cb8e3d: XHProf Run (Namespace=drupal-perf-cottser)
Tip
Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Database\Connection::select

Drupal\Core\Database\Connection::selectRun #531ccbd4518b6Run #531ccb2cb8e3dDiffDiff%
Number of Function Calls30 30 0 0.0%
Incl. Wall Time (microsec)2,958 2,906 -52 -1.8%
Incl. Wall Time (microsec) per call 99 97 -2 -1.8%
Excl. Wall Time (microsec)195 205 10 5.1%
Incl. CPU (microsecs)2,991 2,942 -49 -1.6%
Incl. CPU (microsecs) per call 100 98 -2 -1.6%
Excl. CPU (microsec)177 176 -1 -0.6%
Incl. MemUse (bytes)489,032 489,088 56 0.0%
Incl. MemUse (bytes) per call 16,301 16,303 2 0.0%
Excl. MemUse (bytes)13,640 13,640 0 0.0%
Incl. PeakMemUse (bytes)402,952 402,696 -256 -0.1%
Incl. PeakMemUse (bytes) per call 13,432 13,423 -9 -0.1%
Excl. PeakMemUse (bytes)5,952 5,784 -168 -2.8%

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 Function10 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%