Diff Report
Run #51ba93c3db76f: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51ba929760d1b: 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 #51ba93c3db76fRun #51ba929760d1bDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)905 751 -154 -17.0%
Incl. Wall Time (microsec) per call 905 751 -154 -17.0%
Excl. Wall Time (microsec)43 44 1 2.3%
Incl. CPU (microsecs)327 333 6 1.8%
Incl. CPU (microsecs) per call 327 333 6 1.8%
Excl. CPU (microsec)38 38 0 0.0%
Incl. MemUse (bytes)13,176 13,176 0 0.0%
Incl. MemUse (bytes) per call 13,176 13,176 0 0.0%
Excl. MemUse (bytes)3,512 3,512 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% -154 -21.7% 6 0.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function1 0.6% 0 0.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -154 -100.0% 6 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -176 -114.3% 4 66.7% 0 N/A% 0 N/A%
PDO::exec0 N/A% 21 13.6% 2 33.3% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%