Diff Report
Run #52e49b394aea8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e49acfb0eb8: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::select

Drupal\Core\Database\Connection::selectRun #52e49b394aea8Run #52e49acfb0eb8DiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)595 615 20 3.4%
Incl. Wall Time (microsec) per call 198 205 7 3.4%
Excl. Wall Time (microsec)27 32 5 18.5%
Incl. CPU (microsecs)600 619 19 3.2%
Incl. CPU (microsecs) per call 200 206 6 3.2%
Excl. CPU (microsec)27 27 0 0.0%
Incl. MemUse (bytes)195,112 195,072 -40 -0.0%
Incl. MemUse (bytes) per call 65,037 65,024 -13 -0.0%
Excl. MemUse (bytes)4,792 4,792 0 0.0%
Incl. PeakMemUse (bytes)181,112 181,096 -16 -0.0%
Incl. PeakMemUse (bytes) per call 60,371 60,365 -5 -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% 20 1.8% 19 2.3% -40 -0.2% -16 -0.1%
Exclusive Metrics Diff for Current Function5 25.0% 0 0.0% 0 0.0% 0 0.0%
Parent functions
Drupal\Core\Flood\DatabaseBackend::isAllowed0 N/A% 18 90.0% 17 89.5% -16 -40.0% -16 -100.0%
Drupal\Core\Database\Query\Select::countQuery0 N/A% 3 15.0% 3 15.8% 0 0.0% 0 0.0%
db_select0 N/A% -1 -5.0% -1 -5.3% -24 -60.0% 0 0.0%
Child functions
Drupal\Core\Database\Connection::getDriverClass0 N/A% 14 70.0% 16 84.2% -16 -40.0% -72 -450.0%
Drupal\Core\Database\Query\Select::__construct0 N/A% 1 5.0% 3 15.8% -24 -60.0% 56 350.0%