Diff Report
Run #52e4a1c03557c: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e4a222581ef: 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 #52e4a1c03557cRun #52e4a222581efDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)424 367 -57 -13.4%
Incl. Wall Time (microsec) per call 424 367 -57 -13.4%
Excl. Wall Time (microsec)34 32 -2 -5.9%
Incl. CPU (microsecs)203 170 -33 -16.3%
Incl. CPU (microsecs) per call 203 170 -33 -16.3%
Excl. CPU (microsec)26 25 -1 -3.8%
Incl. MemUse (bytes)12,904 12,904 0 0.0%
Incl. MemUse (bytes) per call 12,904 12,904 0 0.0%
Excl. MemUse (bytes)3,320 3,320 0 0.0%
Incl. PeakMemUse (bytes)12,720 12,720 0 0.0%
Incl. PeakMemUse (bytes) per call 12,720 12,720 0 0.0%
Excl. PeakMemUse (bytes)1,944 1,944 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% -57 -11.6% -33 -15.6% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-2 -3.5% -1 -3.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -57 -100.0% -33 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -48 -84.2% -29 -87.9% 0 N/A% 0 N/A%
PDO::exec0 N/A% -7 -12.3% -2 -6.1% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% -1 -3.0% 0 N/A% 0 N/A%