Diff Report
Run #51ba929760d1b: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51ba946b609ed: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #51ba929760d1bRun #51ba946b609edDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)751 912 161 21.4%
Incl. Wall Time (microsec) per call 751 912 161 21.4%
Excl. Wall Time (microsec)44 43 -1 -2.3%
Incl. CPU (microsecs)333 345 12 3.6%
Incl. CPU (microsecs) per call 333 345 12 3.6%
Excl. CPU (microsec)38 38 0 0.0%
Incl. MemUse (bytes)13,176 13,200 24 0.2%
Incl. MemUse (bytes) per call 13,176 13,200 24 0.2%
Excl. MemUse (bytes)3,512 3,536 24 0.7%
Incl. PeakMemUse (bytes)0 0 0 N/A%
Incl. PeakMemUse (bytes) per call 0 0 0 N/A%
Excl. PeakMemUse (bytes)0 0 0 N/A%

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% 161 0.0% 12 0.0% 24 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-1 -0.6% 0 0.0% 24 100.0% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 161 100.0% 12 100.0% 24 100.0% 0 N/A%
Child functions
PDO::__construct0 N/A% 127 78.9% 11 91.7% 0 0.0% 0 N/A%
PDO::exec0 N/A% 35 21.7% 2 16.7% 0 0.0% 0 N/A%
implode0 N/A% 0 0.0% -1 -8.3% 0 0.0% 0 N/A%