Diff Report
Run #5240420daae43: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52404261932b3: 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 #5240420daae43Run #52404261932b3DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)946 886 -60 -6.3%
Incl. Wall Time (microsec) per call 946 886 -60 -6.3%
Excl. Wall Time (microsec)48 45 -3 -6.2%
Incl. CPU (microsecs)366 326 -40 -10.9%
Incl. CPU (microsecs) per call 366 326 -40 -10.9%
Excl. CPU (microsec)42 35 -7 -16.7%
Incl. MemUse (bytes)13,008 13,008 0 0.0%
Incl. MemUse (bytes) per call 13,008 13,008 0 0.0%
Excl. MemUse (bytes)3,320 3,320 0 0.0%
Incl. PeakMemUse (bytes)12,352 12,352 0 0.0%
Incl. PeakMemUse (bytes) per call 12,352 12,352 0 0.0%
Excl. PeakMemUse (bytes)1,904 1,904 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% -60 -5.2% -40 -1.8% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-3 -5.0% -7 -17.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -60 -100.0% -40 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::exec0 N/A% -31 -51.7% -4 -10.0% 0 N/A% 0 N/A%
PDO::__construct0 N/A% -25 -41.7% -29 -72.5% 0 N/A% 0 N/A%
implode0 N/A% -1 -1.7% 0 0.0% 0 N/A% 0 N/A%