Diff Report
Run #51ec3c1813b11: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec3b81ad265: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::getDriverClass

Drupal\Core\Database\Connection::getDriverClassRun #51ec3c1813b11Run #51ec3b81ad265DiffDiff%
Number of Function Calls19 19 0 0.0%
Incl. Wall Time (microsec)866 897 31 3.6%
Incl. Wall Time (microsec) per call 46 47 2 3.6%
Excl. Wall Time (microsec)72 65 -7 -9.7%
Incl. CPU (microsecs)899 916 17 1.9%
Incl. CPU (microsecs) per call 47 48 1 1.9%
Excl. CPU (microsec)94 76 -18 -19.1%
Incl. MemUse (bytes)302,768 302,768 0 0.0%
Incl. MemUse (bytes) per call 15,935 15,935 0 0.0%
Excl. MemUse (bytes)5,824 5,824 0 0.0%
Incl. PeakMemUse (bytes)238,456 238,400 -56 -0.0%
Incl. PeakMemUse (bytes) per call 12,550 12,547 -3 -0.0%
Excl. PeakMemUse (bytes)3,424 3,424 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% 31 1.3% 17 2.3% 0 N/A% -56 N/A%
Exclusive Metrics Diff for Current Function-7 -22.6% -18 -105.9% 0 N/A% 0 0.0%
Parent functions
Drupal\Core\Database\Connection::select0 N/A% 42 135.5% 36 211.8% 0 N/A% 0 0.0%
Drupal\Core\Database\Connection::insert0 N/A% -11 -35.5% -13 -76.5% 0 N/A% 0 0.0%
Drupal\Core\Database\Connection::delete0 N/A% 4 12.9% 2 11.8% 0 N/A% 0 0.0%
Drupal\Core\Database\Connection::merge0 N/A% -4 -12.9% -6 -35.3% 0 N/A% -56 -100.0%
Drupal\Core\Database\Connection::update0 N/A% 0 0.0% -2 -11.8% 0 N/A% 0 0.0%
Child functions
class_exists0 N/A% 38 122.6% 35 205.9% 0 N/A% -56 -100.0%
Drupal\Core\Database\Driver\mysql\Connection::driver0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 0.0%