Diff Report
Run #519d4cd4e396d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d4dc9980f7: 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 #519d4cd4e396dRun #519d4dc9980f7DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,099 1,167 68 6.2%
Incl. Wall Time (microsec) per call 1,099 1,167 68 6.2%
Excl. Wall Time (microsec)66 68 2 3.0%
Incl. CPU (microsecs)351 329 -22 -6.3%
Incl. CPU (microsecs) per call 351 329 -22 -6.3%
Excl. CPU (microsec)60 58 -2 -3.3%
Incl. MemUse (bytes)3,568 3,568 0 0.0%
Incl. MemUse (bytes) per call 3,568 3,568 0 0.0%
Excl. MemUse (bytes)1,812 1,812 0 0.0%
Incl. PeakMemUse (bytes)3,324 3,324 0 0.0%
Incl. PeakMemUse (bytes) per call 3,324 3,324 0 0.0%
Excl. PeakMemUse (bytes)1,700 1,700 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% 68 0.4% -22 -0.2% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function2 2.9% -2 -9.1% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 68 100.0% -22 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 43 63.2% -25 -113.6% 0 N/A% 0 N/A%
PDO::exec0 N/A% 23 33.8% 5 22.7% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%