Diff Report
Run #519a6c2cb620c: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519a6b3fa9c9c: 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 #519a6c2cb620cRun #519a6b3fa9c9cDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)553 539 -14 -2.5%
Incl. Wall Time (microsec) per call 553 539 -14 -2.5%
Excl. Wall Time (microsec)44 43 -1 -2.3%
Incl. CPU (microsecs)267 258 -9 -3.4%
Incl. CPU (microsecs) per call 267 258 -9 -3.4%
Excl. CPU (microsec)38 38 0 0.0%
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% -14 -1.8% -9 -1.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-1 -7.1% 0 0.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -14 -100.0% -9 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -8 -57.1% -10 -111.1% 0 N/A% 0 N/A%
PDO::exec0 N/A% -5 -35.7% 2 22.2% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% -1 -11.1% 0 N/A% 0 N/A%