Diff Report
Run #519eb5243677d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eb486908e7: 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 #519eb5243677dRun #519eb486908e7DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,106 1,126 20 1.8%
Incl. Wall Time (microsec) per call 1,106 1,126 20 1.8%
Excl. Wall Time (microsec)69 66 -3 -4.3%
Incl. CPU (microsecs)306 301 -5 -1.6%
Incl. CPU (microsecs) per call 306 301 -5 -1.6%
Excl. CPU (microsec)59 59 0 0.0%
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% 20 1.0% -5 -0.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-3 -15.0% 0 0.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 20 100.0% -5 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 23 115.0% -2 -40.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% 0 0.0% -3 -60.0% 0 N/A% 0 N/A%