Diff Report
Run #51ec517fc2424: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec52a09990a: 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 #51ec517fc2424Run #51ec52a09990aDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,058 1,033 -25 -2.4%
Incl. Wall Time (microsec) per call 1,058 1,033 -25 -2.4%
Excl. Wall Time (microsec)55 54 -1 -1.8%
Incl. CPU (microsecs)398 394 -4 -1.0%
Incl. CPU (microsecs) per call 398 394 -4 -1.0%
Excl. CPU (microsec)42 45 3 7.1%
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)3,320 3,320 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% -25 -0.6% -4 -0.1% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-1 -4.0% 3 75.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -25 -100.0% -4 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -24 -96.0% -17 -425.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% -1 -25.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% 0 0.0% 11 275.0% 0 N/A% 0 N/A%