Diff Report
Run #52c641a950046: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52c6423bf12de: 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 #52c641a950046Run #52c6423bf12deDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)303 301 -2 -0.7%
Incl. Wall Time (microsec) per call 303 301 -2 -0.7%
Excl. Wall Time (microsec)26 27 1 3.8%
Incl. CPU (microsecs)133 132 -1 -0.8%
Incl. CPU (microsecs) per call 133 132 -1 -0.8%
Excl. CPU (microsec)22 24 2 9.1%
Incl. MemUse (bytes)13,016 13,016 0 0.0%
Incl. MemUse (bytes) per call 13,016 13,016 0 0.0%
Excl. MemUse (bytes)3,368 3,368 0 0.0%
Incl. PeakMemUse (bytes)12,144 12,144 0 0.0%
Incl. PeakMemUse (bytes) per call 12,144 12,144 0 0.0%
Excl. PeakMemUse (bytes)1,800 1,800 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% -2 -0.4% -1 -0.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function1 50.0% 2 200.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -2 -100.0% -1 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -4 -200.0% -4 -400.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% 1 50.0% 0 0.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 1 100.0% 0 N/A% 0 N/A%