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

Drupal\Core\Database\Connection::getDriverClassRun #51ec517fc2424Run #51ec51f5849d9DiffDiff%
Number of Function Calls23 23 0 0.0%
Incl. Wall Time (microsec)932 974 42 4.5%
Incl. Wall Time (microsec) per call 41 42 2 4.5%
Excl. Wall Time (microsec)76 80 4 5.3%
Incl. CPU (microsecs)948 997 49 5.2%
Incl. CPU (microsecs) per call 41 43 2 5.2%
Excl. CPU (microsec)79 96 17 21.5%
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 Function4 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%