Diff Report
Run #51978d2b1f3d1: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51978cc86c728: 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 #51978d2b1f3d1Run #51978cc86c728DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)838 833 -5 -0.6%
Incl. Wall Time (microsec) per call 838 833 -5 -0.6%
Excl. Wall Time (microsec)49 39 -10 -20.4%
Incl. CPU (microsecs)326 316 -10 -3.1%
Incl. CPU (microsecs) per call 326 316 -10 -3.1%
Excl. CPU (microsec)43 36 -7 -16.3%
Incl. MemUse (bytes)13,032 13,032 0 0.0%
Incl. MemUse (bytes) per call 13,032 13,032 0 0.0%
Excl. MemUse (bytes)3,368 3,368 0 0.0%
Incl. PeakMemUse (bytes)0 0 0 N/A%
Incl. PeakMemUse (bytes) per call 0 0 0 N/A%
Excl. PeakMemUse (bytes)0 0 0 N/A%

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% -5 -1.2% -10 -1.1% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-10 -200.0% -7 -70.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -5 -100.0% -10 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 104 2080.0% 27 270.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% -99 -1980.0% -30 -300.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%