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::__construct

Drupal\Core\Database\Connection::__constructRun #517c1bb406b02Run #517c1c27a12c9DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)949 497 -452 -47.6%
Incl. Wall Time (microsec) per call 949 497 -452 -47.6%
Excl. Wall Time (microsec)23 25 2 8.7%
Incl. CPU (microsecs)427 341 -86 -20.1%
Incl. CPU (microsecs) per call 427 341 -86 -20.1%
Excl. CPU (microsec)17 22 5 29.4%
Incl. MemUse (bytes)42,448 42,448 0 0.0%
Incl. MemUse (bytes) per call 42,448 42,448 0 0.0%
Excl. MemUse (bytes)2,080 2,080 0 0.0%
Incl. PeakMemUse (bytes)42,648 43,224 576 1.4%
Incl. PeakMemUse (bytes) per call 42,648 43,224 576 1.4%
Excl. PeakMemUse (bytes)1,704 1,776 72 4.2%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Connection::__construct [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::__construct0 N/A% -452 -0.2% -86 -0.1% 0 0.0% 576 0.1%
Exclusive Metrics Diff for Current Function2 0.4% 5 5.8% 0 N/A% 72 12.5%
Parent function
Drupal\Core\Database\Driver\mysql\Connection::__construct0 N/A% -452 -100.0% -86 -100.0% 0 N/A% 576 100.0%
Child functions
PDO::__construct0 N/A% -444 -98.2% -81 -94.2% 0 N/A% 216 37.5%
PDO::setAttribute0 N/A% -15 -3.3% -15 -17.4% 0 N/A% 72 12.5%
Drupal\Core\Database\Connection::setPrefix0 N/A% 5 1.1% 5 5.8% 0 N/A% 216 37.5%