Diff Report
Run #51abc4cb0a647: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51abc588c7973: 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 #51abc4cb0a647Run #51abc588c7973DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)893 757 -136 -15.2%
Incl. Wall Time (microsec) per call 893 757 -136 -15.2%
Excl. Wall Time (microsec)40 40 0 0.0%
Incl. CPU (microsecs)319 277 -42 -13.2%
Incl. CPU (microsecs) per call 319 277 -42 -13.2%
Excl. CPU (microsec)35 37 2 5.7%
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 12,496 -72 -0.6%
Incl. PeakMemUse (bytes) per call 12,568 12,496 -72 -0.6%
Excl. PeakMemUse (bytes)1,752 1,680 -72 -4.1%

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% -136 -247.3% -42 -2.5% 0 0.0% -72 -0.3%
Exclusive Metrics Diff for Current Function0 0.0% 2 4.8% 0 N/A% -72 -100.0%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -136 -100.0% -42 -100.0% 0 N/A% -72 -100.0%
Child functions
PDO::__construct0 N/A% -131 -96.3% -49 -116.7% 0 N/A% 0 0.0%
PDO::exec0 N/A% -6 -4.4% 5 11.9% 0 N/A% 0 0.0%
implode0 N/A% 1 0.7% 0 0.0% 0 N/A% 0 0.0%