Diff Report
Run #51ec227a9cea0: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec243650361: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::getDriverClass

Drupal\Core\Database\Connection::getDriverClassRun #51ec227a9cea0Run #51ec243650361DiffDiff%
Number of Function Calls19 19 0 0.0%
Incl. Wall Time (microsec)1,022 1,060 38 3.7%
Incl. Wall Time (microsec) per call 54 56 2 3.7%
Excl. Wall Time (microsec)65 68 3 4.6%
Incl. CPU (microsecs)1,048 1,084 36 3.4%
Incl. CPU (microsecs) per call 55 57 2 3.4%
Excl. CPU (microsec)83 81 -2 -2.4%
Incl. MemUse (bytes)319,208 319,160 -48 -0.0%
Incl. MemUse (bytes) per call 16,800 16,798 -3 -0.0%
Excl. MemUse (bytes)5,824 5,824 0 0.0%
Incl. PeakMemUse (bytes)264,160 258,992 -5,168 -2.0%
Incl. PeakMemUse (bytes) per call 13,903 13,631 -272 -2.0%
Excl. PeakMemUse (bytes)3,560 3,560 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Connection::getDriverClass [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\Connection::getDriverClass0 N/A% 38 0.4% 36 0.5% -48 -0.2% -5,168 -16.1%
Exclusive Metrics Diff for Current Function3 7.9% -2 -5.6% 0 0.0% 0 0.0%
Parent functions
Drupal\Core\Database\Connection::select0 N/A% 27 71.1% 27 75.0% -8 -16.7% -8 -0.2%
Drupal\Core\Database\Connection::insert0 N/A% 10 26.3% 11 30.6% 0 0.0% -3,816 -73.8%
Drupal\Core\Database\Connection::merge0 N/A% 2 5.3% 1 2.8% -24 -50.0% -1,032 -20.0%
Drupal\Core\Database\Connection::delete0 N/A% -1 -2.6% -3 -8.3% 0 0.0% 0 0.0%
Drupal\Core\Database\Connection::update0 N/A% 0 0.0% 0 0.0% -16 -33.3% -312 -6.0%
Child functions
class_exists0 N/A% 35 92.1% 36 100.0% -48 -100.0% -5,168 -100.0%
Drupal\Core\Database\Driver\mysql\Connection::driver0 N/A% 0 0.0% 2 5.6% 0 0.0% 0 0.0%