Diff Report
Run #5422297e7f32f: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #542229efabc5e: 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 #5422297e7f32fRun #542229efabc5eDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)370 365 -5 -1.4%
Incl. Wall Time (microsec) per call 370 365 -5 -1.4%
Excl. Wall Time (microsec)34 33 -1 -2.9%
Incl. CPU (microsecs)157 153 -4 -2.5%
Incl. CPU (microsecs) per call 157 153 -4 -2.5%
Excl. CPU (microsec)29 32 3 10.3%
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 Function-1 -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%