Diff Report
Run #52e436ce9c71d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e4374042ace: 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 #52e436ce9c71dRun #52e4374042aceDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)386 359 -27 -7.0%
Incl. Wall Time (microsec) per call 386 359 -27 -7.0%
Excl. Wall Time (microsec)32 30 -2 -6.2%
Incl. CPU (microsecs)176 162 -14 -8.0%
Incl. CPU (microsecs) per call 176 162 -14 -8.0%
Excl. CPU (microsec)30 25 -5 -16.7%
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% -27 -2.3% -14 -1.4% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-2 -7.4% -5 -35.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -27 -100.0% -14 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::exec0 N/A% -28 -103.7% -14 -100.0% 0 N/A% 0 N/A%
PDO::__construct0 N/A% 3 11.1% 5 35.7% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%