Diff Report
Run #52f5c5484cf48: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5c520502f0: 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 #52f5c5484cf48Run #52f5c520502f0DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)335 306 -29 -8.7%
Incl. Wall Time (microsec) per call 335 306 -29 -8.7%
Excl. Wall Time (microsec)30 27 -3 -10.0%
Incl. CPU (microsecs)157 137 -20 -12.7%
Incl. CPU (microsecs) per call 157 137 -20 -12.7%
Excl. CPU (microsec)25 24 -1 -4.0%
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% -29 -4.4% -20 -3.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-3 -10.3% -1 -5.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -29 -100.0% -20 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::exec0 N/A% -15 -51.7% -4 -20.0% 0 N/A% 0 N/A%
PDO::__construct0 N/A% -11 -37.9% -13 -65.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% -2 -10.0% 0 N/A% 0 N/A%