Diff Report
Run #519c1639640b3: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c153c76aa0: 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 #519c1639640b3Run #519c153c76aa0DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)530 503 -27 -5.1%
Incl. Wall Time (microsec) per call 530 503 -27 -5.1%
Excl. Wall Time (microsec)40 40 0 0.0%
Incl. CPU (microsecs)237 218 -19 -8.0%
Incl. CPU (microsecs) per call 237 218 -19 -8.0%
Excl. CPU (microsec)39 32 -7 -17.9%
Incl. MemUse (bytes)12,608 12,608 0 0.0%
Incl. MemUse (bytes) per call 12,608 12,608 0 0.0%
Excl. MemUse (bytes)3,464 3,464 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% -27 -14.1% -19 -15.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function0 0.0% -7 -36.8% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -27 -100.0% -19 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -28 -103.7% -19 -100.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% 1 3.7% 5 26.3% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 2 10.5% 0 N/A% 0 N/A%