Diff Report
Run #517c76da9b0d3: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c75d3de7c7: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Database\Connection::select

Drupal\Core\Database\Connection::selectRun #517c76da9b0d3Run #517c75d3de7c7DiffDiff%
Number of Function Calls3 4 1 33.3%
Incl. Wall Time (microsec)974 1,024 50 5.1%
Incl. Wall Time (microsec) per call 325 256 -69 -21.1%
Excl. Wall Time (microsec)31 45 14 45.2%
Incl. CPU (microsecs)980 1,026 46 4.7%
Incl. CPU (microsecs) per call 327 257 -70 -21.5%
Excl. CPU (microsec)30 35 5 16.7%
Incl. MemUse (bytes)188,272 191,968 3,696 2.0%
Incl. MemUse (bytes) per call 62,757 47,992 -14,765 -23.5%
Excl. MemUse (bytes)3,144 4,232 1,088 34.6%
Incl. PeakMemUse (bytes)183,688 187,568 3,880 2.1%
Incl. PeakMemUse (bytes) per call 61,229 46,892 -14,337 -23.4%
Excl. PeakMemUse (bytes)2,800 3,920 1,120 40.0%

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::select1 33.3% 50 0.0% 46 0.0% 3,696 1.5% 3,880 1.1%
Exclusive Metrics Diff for Current Function14 28.0% 5 10.9% 1,088 29.4% 1,120 28.9%
Parent functions
Drupal\Core\Database\Query\Merge::execute1 100.0% 48 96.0% 49 106.5% 3,720 100.6% 2,264 58.4%
db_select0 0.0% 2 4.0% -3 -6.5% -24 -0.6% 1,616 41.6%
Child functions
Drupal\Core\Database\Query\Select::__construct1 50.0% 36 72.0% 37 80.4% 2,624 71.0% 2,600 67.0%
Drupal\Core\Database\Connection::getDriverClass1 50.0% 0 0.0% 4 8.7% -16 -0.4% 160 4.1%