Diff Report
Run #519f012418c24: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519f02001a77a: 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 #519f012418c24Run #519f02001a77aDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)855 903 48 5.6%
Incl. Wall Time (microsec) per call 855 903 48 5.6%
Excl. Wall Time (microsec)41 42 1 2.4%
Incl. CPU (microsecs)306 310 4 1.3%
Incl. CPU (microsecs) per call 306 310 4 1.3%
Excl. CPU (microsec)36 38 2 5.6%
Incl. MemUse (bytes)12,872 12,872 0 0.0%
Incl. MemUse (bytes) per call 12,872 12,872 0 0.0%
Excl. MemUse (bytes)3,184 3,184 0 0.0%
Incl. PeakMemUse (bytes)12,280 12,280 0 0.0%
Incl. PeakMemUse (bytes) per call 12,280 12,280 0 0.0%
Excl. PeakMemUse (bytes)1,680 1,680 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% 48 14.9% 4 0.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function1 2.1% 2 50.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 48 100.0% 4 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 49 102.1% 1 25.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% -2 -4.2% 1 25.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%