Diff Report
Run #519d4cd4e396d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d4dc9980f7: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::getDriverClass

Drupal\Core\Database\Connection::getDriverClassRun #519d4cd4e396dRun #519d4dc9980f7DiffDiff%
Number of Function Calls14 14 0 0.0%
Incl. Wall Time (microsec)2,333 2,356 23 1.0%
Incl. Wall Time (microsec) per call 167 168 2 1.0%
Excl. Wall Time (microsec)93 88 -5 -5.4%
Incl. CPU (microsecs)2,348 2,384 36 1.5%
Incl. CPU (microsecs) per call 168 170 3 1.5%
Excl. CPU (microsec)100 105 5 5.0%
Incl. MemUse (bytes)155,180 155,180 0 0.0%
Incl. MemUse (bytes) per call 11,084 11,084 0 0.0%
Excl. MemUse (bytes)2,116 2,116 0 0.0%
Incl. PeakMemUse (bytes)96,432 96,432 0 0.0%
Incl. PeakMemUse (bytes) per call 6,888 6,888 0 0.0%
Excl. PeakMemUse (bytes)740 740 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% 23 0.1% 36 0.2% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-5 -21.7% 5 13.9% 0 N/A% 0 N/A%
Parent functions
Drupal\Core\Database\Connection::select0 N/A% 42 182.6% 54 150.0% 0 N/A% 0 N/A%
Drupal\Core\Database\Connection::update0 N/A% -14 -60.9% -13 -36.1% 0 N/A% 0 N/A%
Drupal\Core\Database\Connection::merge0 N/A% -5 -21.7% -5 -13.9% 0 N/A% 0 N/A%
Child functions
class_exists0 N/A% 29 126.1% 32 88.9% 0 N/A% 0 N/A%
Drupal\Core\Database\Driver\mysql\Connection::driver0 N/A% -1 -4.3% -1 -2.8% 0 N/A% 0 N/A%