Diff Report
Run #51ec5ca916d7d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec5cfb002ea: 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 #51ec5ca916d7dRun #51ec5cfb002eaDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,035 1,042 7 0.7%
Incl. Wall Time (microsec) per call 1,035 1,042 7 0.7%
Excl. Wall Time (microsec)55 55 0 0.0%
Incl. CPU (microsecs)394 398 4 1.0%
Incl. CPU (microsecs) per call 394 398 4 1.0%
Excl. CPU (microsec)46 44 -2 -4.3%
Incl. MemUse (bytes)12,936 12,936 0 0.0%
Incl. MemUse (bytes) per call 12,936 12,936 0 0.0%
Excl. MemUse (bytes)3,344 3,344 0 0.0%
Incl. PeakMemUse (bytes)12,144 12,144 0 0.0%
Incl. PeakMemUse (bytes) per call 12,144 12,144 0 0.0%
Excl. PeakMemUse (bytes)1,808 1,808 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% 7 0.4% 4 4.1% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function0 0.0% -2 -50.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 7 100.0% 4 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 4 57.1% 4 100.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% 3 42.9% 0 0.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 2 50.0% 0 N/A% 0 N/A%