Diff Report
Run #51f5bb078e5a7: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51f5bb45dd257: 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 #51f5bb078e5a7Run #51f5bb45dd257DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)882 901 19 2.2%
Incl. Wall Time (microsec) per call 882 901 19 2.2%
Excl. Wall Time (microsec)43 42 -1 -2.3%
Incl. CPU (microsecs)309 318 9 2.9%
Incl. CPU (microsecs) per call 309 318 9 2.9%
Excl. CPU (microsec)40 36 -4 -10.0%
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)3,320 3,320 0 0.0%
Incl. PeakMemUse (bytes)12,512 12,512 0 0.0%
Incl. PeakMemUse (bytes) per call 12,512 12,512 0 0.0%
Excl. PeakMemUse (bytes)1,944 1,944 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% 19 2.5% 9 7.7% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-1 -5.3% -4 -44.4% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 19 100.0% 9 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 19 100.0% 16 177.8% 0 N/A% 0 N/A%
PDO::exec0 N/A% 1 5.3% -3 -33.3% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%