Diff Report
Run #517c1bb406b02: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c1c27a12c9: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Database\Connection::select

Drupal\Core\Database\Connection::selectRun #517c1bb406b02Run #517c1c27a12c9DiffDiff%
Number of Function Calls4 3 -1 -25.0%
Incl. Wall Time (microsec)1,003 893 -110 -11.0%
Incl. Wall Time (microsec) per call 251 298 47 18.7%
Excl. Wall Time (microsec)42 31 -11 -26.2%
Incl. CPU (microsecs)1,007 896 -111 -11.0%
Incl. CPU (microsecs) per call 252 299 47 18.6%
Excl. CPU (microsec)34 26 -8 -23.5%
Incl. MemUse (bytes)191,976 188,248 -3,728 -1.9%
Incl. MemUse (bytes) per call 47,994 62,749 14,755 30.7%
Excl. MemUse (bytes)4,232 3,144 -1,088 -25.7%
Incl. PeakMemUse (bytes)186,984 184,032 -2,952 -1.6%
Incl. PeakMemUse (bytes) per call 46,746 61,344 14,598 31.2%
Excl. PeakMemUse (bytes)3,920 2,800 -1,120 -28.6%

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::select-1 -33.3% -110 -0.0% -111 -0.1% -3,728 -0.8% -2,952 -0.5%
Exclusive Metrics Diff for Current Function-11 -10.0% -8 -7.2% -1,088 -29.2% -1,120 -37.9%
Parent functions
db_select0 0.0% -62 -56.4% -62 -55.9% -8 -0.2% -688 -23.3%
Drupal\Core\Database\Query\Merge::execute-1 -100.0% -48 -43.6% -49 -44.1% -3,720 -99.8% -2,264 -76.7%
Child functions
Drupal\Core\Database\Connection::getDriverClass-1 -50.0% -97 -88.2% -102 -91.9% -16 -0.4% 256 8.7%
Drupal\Core\Database\Query\Select::__construct-1 -50.0% -2 -1.8% -1 -0.9% -2,624 -70.4% -2,088 -70.7%