Diff Report
Run #52d3e964b719c: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52d3e93cb560e: 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 #52d3e964b719cRun #52d3e93cb560eDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)393 301 -92 -23.4%
Incl. Wall Time (microsec) per call 393 301 -92 -23.4%
Excl. Wall Time (microsec)30 26 -4 -13.3%
Incl. CPU (microsecs)181 133 -48 -26.5%
Incl. CPU (microsecs) per call 181 133 -48 -26.5%
Excl. CPU (microsec)26 23 -3 -11.5%
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)3,360 3,360 0 0.0%
Incl. PeakMemUse (bytes)12,696 12,696 0 0.0%
Incl. PeakMemUse (bytes) per call 12,696 12,696 0 0.0%
Excl. PeakMemUse (bytes)1,760 1,760 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% -92 -30.8% -48 -17.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-4 -4.3% -3 -6.2% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -92 -100.0% -48 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -53 -57.6% -25 -52.1% 0 N/A% 0 N/A%
PDO::exec0 N/A% -34 -37.0% -20 -41.7% 0 N/A% 0 N/A%
implode0 N/A% -1 -1.1% 0 0.0% 0 N/A% 0 N/A%