Diff Report
Run #5198b38f0f1d5: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198b3b171080: 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 #5198b38f0f1d5Run #5198b3b171080DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)918 822 -96 -10.5%
Incl. Wall Time (microsec) per call 918 822 -96 -10.5%
Excl. Wall Time (microsec)38 47 9 23.7%
Incl. CPU (microsecs)330 339 9 2.7%
Incl. CPU (microsecs) per call 330 339 9 2.7%
Excl. CPU (microsec)32 38 6 18.8%
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)3,184 3,184 0 0.0%
Incl. PeakMemUse (bytes)12,488 12,488 0 0.0%
Incl. PeakMemUse (bytes) per call 12,488 12,488 0 0.0%
Excl. PeakMemUse (bytes)1,640 1,640 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% -96 -228.6% 9 16.7% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function9 9.4% 6 66.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -96 -100.0% 9 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -188 -195.8% -3 -33.3% 0 N/A% 0 N/A%
PDO::exec0 N/A% 83 86.5% 6 66.7% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%