Diff Report
Run #51981beb768ad: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51981e3ae1e6c: 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 #51981beb768adRun #51981e3ae1e6cDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)928 750 -178 -19.2%
Incl. Wall Time (microsec) per call 928 750 -178 -19.2%
Excl. Wall Time (microsec)41 44 3 7.3%
Incl. CPU (microsecs)353 308 -45 -12.7%
Incl. CPU (microsecs) per call 353 308 -45 -12.7%
Excl. CPU (microsec)36 38 2 5.6%
Incl. MemUse (bytes)13,016 13,016 0 0.0%
Incl. MemUse (bytes) per call 13,016 13,016 0 0.0%
Excl. MemUse (bytes)3,352 3,352 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% -178 -144.7% -45 -8.5% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function3 1.7% 2 4.4% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -178 -100.0% -45 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -171 -96.1% -42 -93.3% 0 N/A% 0 N/A%
PDO::exec0 N/A% -10 -5.6% -5 -11.1% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%