Diff Report
Run #51af3d98520b7: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51af435181b2e: 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 #51af3d98520b7Run #51af435181b2eDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)518 504 -14 -2.7%
Incl. Wall Time (microsec) per call 518 504 -14 -2.7%
Excl. Wall Time (microsec)40 39 -1 -2.5%
Incl. CPU (microsecs)219 241 22 10.0%
Incl. CPU (microsecs) per call 219 241 22 10.0%
Excl. CPU (microsec)33 32 -1 -3.0%
Incl. MemUse (bytes)12,584 12,584 0 0.0%
Incl. MemUse (bytes) per call 12,584 12,584 0 0.0%
Excl. MemUse (bytes)3,440 3,440 0 0.0%
Incl. PeakMemUse (bytes)0 0 0 N/A%
Incl. PeakMemUse (bytes) per call 0 0 0 N/A%
Excl. PeakMemUse (bytes)0 0 0 N/A%

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% -14 -1.8% 22 2.3% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-1 -7.1% -1 -4.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -14 -100.0% 22 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -14 -100.0% 23 104.5% 0 N/A% 0 N/A%
implode0 N/A% 1 7.1% 2 9.1% 0 N/A% 0 N/A%
PDO::exec0 N/A% 0 0.0% -2 -9.1% 0 N/A% 0 N/A%