Diff Report
Run #5198b38f0f1d5: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198b3cd5c9c1: 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 #5198b38f0f1d5Run #5198b3cd5c9c1DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)918 632 -286 -31.2%
Incl. Wall Time (microsec) per call 918 632 -286 -31.2%
Excl. Wall Time (microsec)38 41 3 7.9%
Incl. CPU (microsecs)330 281 -49 -14.8%
Incl. CPU (microsecs) per call 330 281 -49 -14.8%
Excl. CPU (microsec)32 33 1 3.1%
Incl. MemUse (bytes)12,848 12,848 0 0.0%
Incl. MemUse (bytes) per call 12,848 12,848 0 0.0%
Excl. MemUse (bytes)3,184 3,184 0 0.0%
Incl. PeakMemUse (bytes)12,488 12,488 0 0.0%
Incl. PeakMemUse (bytes) per call 12,488 12,488 0 0.0%
Excl. PeakMemUse (bytes)1,640 1,640 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% -286 -62.3% -49 -17.7% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function3 1.0% 1 2.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -286 -100.0% -49 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -288 -100.7% -49 -100.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% -2 -0.7% -1 -2.0% 0 N/A% 0 N/A%
implode0 N/A% 1 0.3% 0 0.0% 0 N/A% 0 N/A%