Diff Report
Run #534ad8dec7444: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #534ad972c8c0d: 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 #534ad8dec7444Run #534ad972c8c0dDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)724 780 56 7.7%
Incl. Wall Time (microsec) per call 724 780 56 7.7%
Excl. Wall Time (microsec)55 55 0 0.0%
Incl. CPU (microsecs)259 258 -1 -0.4%
Incl. CPU (microsecs) per call 259 258 -1 -0.4%
Excl. CPU (microsec)49 49 0 0.0%
Incl. MemUse (bytes)3,444 3,444 0 0.0%
Incl. MemUse (bytes) per call 3,444 3,444 0 0.0%
Excl. MemUse (bytes)1,680 1,680 0 0.0%
Incl. PeakMemUse (bytes)3,212 3,212 0 0.0%
Incl. PeakMemUse (bytes) per call 3,212 3,212 0 0.0%
Excl. PeakMemUse (bytes)1,624 1,624 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% 56 3.9% -1 -0.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function0 0.0% 0 0.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 56 100.0% -1 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 84 150.0% 13 1300.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% -28 -50.0% -15 -1500.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 1 100.0% 0 N/A% 0 N/A%