Diff Report
Run #51af435181b2e: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51af3d98520b7: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::select

Drupal\Core\Database\Connection::selectRun #51af435181b2eRun #51af3d98520b7DiffDiff%
Number of Function Calls4 4 0 0.0%
Incl. Wall Time (microsec)3,195 3,097 -98 -3.1%
Incl. Wall Time (microsec) per call 799 774 -25 -3.1%
Excl. Wall Time (microsec)62 53 -9 -14.5%
Incl. CPU (microsecs)3,202 3,105 -97 -3.0%
Incl. CPU (microsecs) per call 801 776 -24 -3.0%
Excl. CPU (microsec)59 57 -2 -3.4%
Incl. MemUse (bytes)618,880 618,848 -32 -0.0%
Incl. MemUse (bytes) per call 154,720 154,712 -8 -0.0%
Excl. MemUse (bytes)14,176 14,176 0 0.0%
Incl. PeakMemUse (bytes)625,744 625,736 -8 -0.0%
Incl. PeakMemUse (bytes) per call 156,436 156,434 -2 -0.0%
Excl. PeakMemUse (bytes)8,296 8,296 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% -98 -12.3% -97 -10.2% -32 -0.0% -8 -0.0%
Exclusive Metrics Diff for Current Function-9 -9.2% -2 -2.1% 0 0.0% 0 0.0%
Parent functions
Drupal\Core\Entity\DatabaseStorageController::buildQuery0 N/A% -105 -107.1% -105 -108.2% -32 -100.0% 48 600.0%
Drupal\field_sql_storage\Entity\Query::prepare0 N/A% 7 7.1% 7 7.2% 0 0.0% -56 -700.0%
db_select0 N/A% 0 0.0% 1 1.0% 0 0.0% 0 0.0%
Child functions
Drupal\Core\Database\Connection::getDriverClass0 N/A% -68 -69.4% -72 -74.2% -24 -75.0% 56 700.0%
Drupal\Core\Database\Query\Select::__construct0 N/A% -21 -21.4% -23 -23.7% -8 -25.0% -64 -800.0%