Diff Report
Run #51e3103d95a81: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51e30f7568a45: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #51e3103d95a81Run #51e30f7568a45DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)584 952 368 63.0%
Incl. Wall Time (microsec) per call 584 952 368 63.0%
Excl. Wall Time (microsec)41 46 5 12.2%
Incl. CPU (microsecs)276 324 48 17.4%
Incl. CPU (microsecs) per call 276 324 48 17.4%
Excl. CPU (microsec)38 40 2 5.3%
Incl. MemUse (bytes)13,152 13,168 16 0.1%
Incl. MemUse (bytes) per call 13,152 13,168 16 0.1%
Excl. MemUse (bytes)3,536 3,536 0 0.0%
Incl. PeakMemUse (bytes)12,440 12,456 16 0.1%
Incl. PeakMemUse (bytes) per call 12,440 12,456 16 0.1%
Excl. PeakMemUse (bytes)1,952 1,952 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% 368 5.7% 48 10.2% 16 0.0% 16 0.0%
Exclusive Metrics Diff for Current Function5 1.4% 2 4.2% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 368 100.0% 48 100.0% 16 100.0% 16 100.0%
Child functions
PDO::__construct0 N/A% 356 96.7% 35 72.9% 16 100.0% 16 100.0%
PDO::exec0 N/A% 6 1.6% 9 18.8% 0 0.0% 0 0.0%
implode0 N/A% 1 0.3% 2 4.2% 0 0.0% 0 0.0%