Diff Report
Run #52f5cb0964fa0: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5cbc19a0d8: 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 #52f5cb0964fa0Run #52f5cbc19a0d8DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)310 331 21 6.8%
Incl. Wall Time (microsec) per call 310 331 21 6.8%
Excl. Wall Time (microsec)28 31 3 10.7%
Incl. CPU (microsecs)139 156 17 12.2%
Incl. CPU (microsecs) per call 139 156 17 12.2%
Excl. CPU (microsec)26 23 -3 -11.5%
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% 21 22.6% 17 8.7% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function3 14.3% -3 -17.6% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 21 100.0% 17 100.0% 0 N/A% 0 N/A%
Child functions
PDO::exec0 N/A% 11 52.4% 6 35.3% 0 N/A% 0 N/A%
PDO::__construct0 N/A% 7 33.3% 13 76.5% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 1 5.9% 0 N/A% 0 N/A%