Diff Report
Run #51ec51f5849d9: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec517fc2424: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::getDriverClass

Drupal\Core\Database\Connection::getDriverClassRun #51ec51f5849d9Run #51ec517fc2424DiffDiff%
Number of Function Calls23 23 0 0.0%
Incl. Wall Time (microsec)974 932 -42 -4.3%
Incl. Wall Time (microsec) per call 42 41 -2 -4.3%
Excl. Wall Time (microsec)80 76 -4 -5.0%
Incl. CPU (microsecs)997 948 -49 -4.9%
Incl. CPU (microsecs) per call 43 41 -2 -4.9%
Excl. CPU (microsec)96 79 -17 -17.7%
Incl. MemUse (bytes)302,896 302,896 0 0.0%
Incl. MemUse (bytes) per call 13,169 13,169 0 0.0%
Excl. MemUse (bytes)5,824 5,824 0 0.0%
Incl. PeakMemUse (bytes)240,752 240,752 0 0.0%
Incl. PeakMemUse (bytes) per call 10,467 10,467 0 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% -42 -1.4% -49 -1.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-4 -9.5% -17 -34.7% 0 N/A% 0 N/A%
Parent functions
Drupal\Core\Database\Connection::select0 N/A% -23 -54.8% -29 -59.2% 0 N/A% 0 N/A%
Drupal\Core\Database\Connection::update0 N/A% -18 -42.9% -18 -36.7% 0 N/A% 0 N/A%
Drupal\Core\Database\Connection::merge0 N/A% -6 -14.3% -6 -12.2% 0 N/A% 0 N/A%
Drupal\Core\Database\Connection::delete0 N/A% 5 11.9% 3 6.1% 0 N/A% 0 N/A%
Drupal\Core\Database\Connection::insert0 N/A% 0 0.0% 1 2.0% 0 N/A% 0 N/A%
Child functions
class_exists0 N/A% -38 -90.5% -34 -69.4% 0 N/A% 0 N/A%
Drupal\Core\Database\Driver\mysql\Connection::driver0 N/A% 0 0.0% 2 4.1% 0 N/A% 0 N/A%