Diff Report
Run #52f5c0b2e882a: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5c0f4ebbb2: 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 #52f5c0b2e882aRun #52f5c0f4ebbb2DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)332 304 -28 -8.4%
Incl. Wall Time (microsec) per call 332 304 -28 -8.4%
Excl. Wall Time (microsec)30 28 -2 -6.7%
Incl. CPU (microsecs)158 137 -21 -13.3%
Incl. CPU (microsecs) per call 158 137 -21 -13.3%
Excl. CPU (microsec)26 25 -1 -3.8%
Incl. MemUse (bytes)12,992 12,992 0 0.0%
Incl. MemUse (bytes) per call 12,992 12,992 0 0.0%
Excl. MemUse (bytes)3,344 3,344 0 0.0%
Incl. PeakMemUse (bytes)12,272 12,272 0 0.0%
Incl. PeakMemUse (bytes) per call 12,272 12,272 0 0.0%
Excl. PeakMemUse (bytes)1,976 1,976 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% -28 -5.2% -21 -3.9% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-2 -7.1% -1 -4.8% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -28 -100.0% -21 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -13 -46.4% -13 -61.9% 0 N/A% 0 N/A%
PDO::exec0 N/A% -13 -46.4% -6 -28.6% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% -1 -4.8% 0 N/A% 0 N/A%