Diff Report
Run #5208407650493: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #520840a963a54: 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 #5208407650493Run #520840a963a54DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)888 630 -258 -29.1%
Incl. Wall Time (microsec) per call 888 630 -258 -29.1%
Excl. Wall Time (microsec)42 46 4 9.5%
Incl. CPU (microsecs)305 288 -17 -5.6%
Incl. CPU (microsecs) per call 305 288 -17 -5.6%
Excl. CPU (microsec)37 41 4 10.8%
Incl. MemUse (bytes)13,008 13,008 0 0.0%
Incl. MemUse (bytes) per call 13,008 13,008 0 0.0%
Excl. MemUse (bytes)3,320 3,320 0 0.0%
Incl. PeakMemUse (bytes)12,432 12,432 0 0.0%
Incl. PeakMemUse (bytes) per call 12,432 12,432 0 0.0%
Excl. PeakMemUse (bytes)1,944 1,944 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% -258 -238.9% -17 -9.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function4 1.6% 4 23.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -258 -100.0% -17 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -297 -115.1% -34 -200.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% 36 14.0% 13 76.5% 0 N/A% 0 N/A%
implode0 N/A% -1 -0.4% 0 0.0% 0 N/A% 0 N/A%