Diff Report
Run #519ead70538d1: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eadc55e057: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #519ead70538d1Run #519eadc55e057DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,023 1,150 127 12.4%
Incl. Wall Time (microsec) per call 1,023 1,150 127 12.4%
Excl. Wall Time (microsec)67 67 0 0.0%
Incl. CPU (microsecs)306 310 4 1.3%
Incl. CPU (microsecs) per call 306 310 4 1.3%
Excl. CPU (microsec)57 60 3 5.3%
Incl. MemUse (bytes)3,568 3,568 0 0.0%
Incl. MemUse (bytes) per call 3,568 3,568 0 0.0%
Excl. MemUse (bytes)1,812 1,812 0 0.0%
Incl. PeakMemUse (bytes)3,280 3,280 0 0.0%
Incl. PeakMemUse (bytes) per call 3,280 3,280 0 0.0%
Excl. PeakMemUse (bytes)1,656 1,656 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% 127 9.7% 4 1.7% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function0 0.0% 3 75.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 127 100.0% 4 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 89 70.1% -4 -100.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% 38 29.9% 6 150.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% -1 -25.0% 0 N/A% 0 N/A%