Diff Report
Run #51990ceb6ce00: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51990c6b6ce43: 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 #51990ceb6ce00Run #51990c6b6ce43DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)626 633 7 1.1%
Incl. Wall Time (microsec) per call 626 633 7 1.1%
Excl. Wall Time (microsec)42 43 1 2.4%
Incl. CPU (microsecs)292 297 5 1.7%
Incl. CPU (microsecs) per call 292 297 5 1.7%
Excl. CPU (microsec)37 34 -3 -8.1%
Incl. MemUse (bytes)12,848 12,848 0 0.0%
Incl. MemUse (bytes) per call 12,848 12,848 0 0.0%
Excl. MemUse (bytes)3,160 3,160 0 0.0%
Incl. PeakMemUse (bytes)12,568 12,568 0 0.0%
Incl. PeakMemUse (bytes) per call 12,568 12,568 0 0.0%
Excl. PeakMemUse (bytes)1,752 1,752 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% 7 1.6% 5 0.4% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function1 14.3% -3 -60.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 7 100.0% 5 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 4 57.1% 3 60.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% 2 28.6% 4 80.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 1 20.0% 0 N/A% 0 N/A%