Diff Report
Run #542229efabc5e: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5422297e7f32f: 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 #542229efabc5eRun #5422297e7f32fDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)365 370 5 1.4%
Incl. Wall Time (microsec) per call 365 370 5 1.4%
Excl. Wall Time (microsec)33 34 1 3.0%
Incl. CPU (microsecs)153 157 4 2.6%
Incl. CPU (microsecs) per call 153 157 4 2.6%
Excl. CPU (microsec)32 29 -3 -9.4%
Incl. MemUse (bytes)13,168 13,168 0 0.0%
Incl. MemUse (bytes) per call 13,168 13,168 0 0.0%
Excl. MemUse (bytes)3,504 3,504 0 0.0%
Incl. PeakMemUse (bytes)12,728 12,728 0 0.0%
Incl. PeakMemUse (bytes) per call 12,728 12,728 0 0.0%
Excl. PeakMemUse (bytes)2,088 2,088 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% 5 1.0% 4 1.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function1 20.0% -3 -75.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 5 100.0% 4 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 3 60.0% 3 75.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% 1 20.0% 2 50.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 2 50.0% 0 N/A% 0 N/A%