Diff Report
Run #519eb7f35533b: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eb7a1537f7: 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 #519eb7f35533bRun #519eb7a1537f7DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,039 1,370 331 31.9%
Incl. Wall Time (microsec) per call 1,039 1,370 331 31.9%
Excl. Wall Time (microsec)82 69 -13 -15.9%
Incl. CPU (microsecs)361 358 -3 -0.8%
Incl. CPU (microsecs) per call 361 358 -3 -0.8%
Excl. CPU (microsec)72 60 -12 -16.7%
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% 331 11.3% -3 -0.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-13 -3.9% -12 -400.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 331 100.0% -3 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 397 119.9% 24 800.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% -51 -15.4% -13 -433.3% 0 N/A% 0 N/A%
implode0 N/A% -2 -0.6% -2 -66.7% 0 N/A% 0 N/A%