Diff Report
Run #52e4a1fd8a982: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e4a1c03557c: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::select

Drupal\Core\Database\Connection::selectRun #52e4a1fd8a982Run #52e4a1c03557cDiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)648 521 -127 -19.6%
Incl. Wall Time (microsec) per call 216 174 -42 -19.6%
Excl. Wall Time (microsec)29 24 -5 -17.2%
Incl. CPU (microsecs)652 523 -129 -19.8%
Incl. CPU (microsecs) per call 217 174 -43 -19.8%
Excl. CPU (microsec)25 21 -4 -16.0%
Incl. MemUse (bytes)195,064 195,064 0 0.0%
Incl. MemUse (bytes) per call 65,021 65,021 0 0.0%
Excl. MemUse (bytes)4,792 4,792 0 0.0%
Incl. PeakMemUse (bytes)181,088 181,088 0 0.0%
Incl. PeakMemUse (bytes) per call 60,363 60,363 0 0.0%
Excl. PeakMemUse (bytes)3,472 3,472 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% -127 -31.8% -129 -34.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-5 -3.9% -4 -3.1% 0 N/A% 0 N/A%
Parent functions
Drupal\Core\Flood\DatabaseBackend::isAllowed0 N/A% -119 -93.7% -120 -93.0% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Select::countQuery0 N/A% -7 -5.5% -8 -6.2% 0 N/A% 0 N/A%
db_select0 N/A% -1 -0.8% -1 -0.8% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Database\Connection::getDriverClass0 N/A% -95 -74.8% -98 -76.0% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Select::__construct0 N/A% -27 -21.3% -27 -20.9% 0 N/A% 0 N/A%