Diff Report
Run #52d4b1d6bf728: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52d4b18f32fb6: 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 #52d4b1d6bf728Run #52d4b18f32fb6DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)348 295 -53 -15.2%
Incl. Wall Time (microsec) per call 348 295 -53 -15.2%
Excl. Wall Time (microsec)28 25 -3 -10.7%
Incl. CPU (microsecs)137 130 -7 -5.1%
Incl. CPU (microsecs) per call 137 130 -7 -5.1%
Excl. CPU (microsec)24 21 -3 -12.5%
Incl. MemUse (bytes)12,984 12,984 0 0.0%
Incl. MemUse (bytes) per call 12,984 12,984 0 0.0%
Excl. MemUse (bytes)3,320 3,320 0 0.0%
Incl. PeakMemUse (bytes)12,600 12,600 0 0.0%
Incl. PeakMemUse (bytes) per call 12,600 12,600 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% -53 -46.5% -7 -16.3% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-3 -5.7% -3 -42.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -53 -100.0% -7 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -49 -92.5% -3 -42.9% 0 N/A% 0 N/A%
PDO::exec0 N/A% -1 -1.9% -1 -14.3% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%