Diff Report
Run #52ed72044139b: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #52ed72fd446c1: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #52ed72044139bRun #52ed72fd446c1DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)857 774 -83 -9.7%
Incl. Wall Time (microsec) per call 857 774 -83 -9.7%
Excl. Wall Time (microsec)70 58 -12 -17.1%
Incl. CPU (microsecs)487 415 -72 -14.8%
Incl. CPU (microsecs) per call 487 415 -72 -14.8%
Excl. CPU (microsec)60 51 -9 -15.0%
Incl. MemUse (bytes)13,320 13,320 0 0.0%
Incl. MemUse (bytes) per call 13,320 13,320 0 0.0%
Excl. MemUse (bytes)3,176 3,176 0 0.0%
Incl. PeakMemUse (bytes)11,976 11,976 0 0.0%
Incl. PeakMemUse (bytes) per call 11,976 11,976 0 0.0%
Excl. PeakMemUse (bytes)1,848 1,848 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Driver\mysql\Connection::open [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\Driver\mysql\Connection::open0 N/A% -83 -8.5% -72 -3.8% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-12 -14.5% -9 -12.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -83 -100.0% -72 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -38 -45.8% -37 -51.4% 0 N/A% 0 N/A%
PDO::exec0 N/A% -25 -30.1% -17 -23.6% 0 N/A% 0 N/A%
implode0 N/A% -8 -9.6% -9 -12.5% 0 N/A% 0 N/A%