Diff Report
Run #52f5cbc19a0d8: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5cb0964fa0: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #52f5cbc19a0d8Run #52f5cb0964fa0DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)331 310 -21 -6.3%
Incl. Wall Time (microsec) per call 331 310 -21 -6.3%
Excl. Wall Time (microsec)31 28 -3 -9.7%
Incl. CPU (microsecs)156 139 -17 -10.9%
Incl. CPU (microsecs) per call 156 139 -17 -10.9%
Excl. CPU (microsec)23 26 3 13.0%
Incl. MemUse (bytes)12,992 12,992 0 0.0%
Incl. MemUse (bytes) per call 12,992 12,992 0 0.0%
Excl. MemUse (bytes)3,344 3,344 0 0.0%
Incl. PeakMemUse (bytes)12,272 12,272 0 0.0%
Incl. PeakMemUse (bytes) per call 12,272 12,272 0 0.0%
Excl. PeakMemUse (bytes)1,976 1,976 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% -21 -22.6% -17 -8.7% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-3 -14.3% 3 17.6% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -21 -100.0% -17 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::exec0 N/A% -11 -52.4% -6 -35.3% 0 N/A% 0 N/A%
PDO::__construct0 N/A% -7 -33.3% -13 -76.5% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% -1 -5.9% 0 N/A% 0 N/A%