Diff Report
Run #51ec3c5ab9ae4: 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 #51ec3c5ab9ae4Run #51ec3b81ad265DiffDiff%
Number of Function Calls19 19 0 0.0%
Incl. Wall Time (microsec)925 897 -28 -3.0%
Incl. Wall Time (microsec) per call 49 47 -1 -3.0%
Excl. Wall Time (microsec)66 65 -1 -1.5%
Incl. CPU (microsecs)947 916 -31 -3.3%
Incl. CPU (microsecs) per call 50 48 -2 -3.3%
Excl. CPU (microsec)81 76 -5 -6.2%
Incl. MemUse (bytes)302,784 302,768 -16 -0.0%
Incl. MemUse (bytes) per call 15,936 15,935 -1 -0.0%
Excl. MemUse (bytes)5,824 5,824 0 0.0%
Incl. PeakMemUse (bytes)238,432 238,400 -32 -0.0%
Incl. PeakMemUse (bytes) per call 12,549 12,547 -2 -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% -28 -7.5% -31 -2.9% -16 -0.0% -32 -0.1%
Exclusive Metrics Diff for Current Function-1 -3.6% -5 -16.1% 0 0.0% 0 0.0%
Parent functions
Drupal\Core\Database\Connection::select0 N/A% 40 142.9% 38 122.6% 0 0.0% 0 0.0%
Drupal\Core\Database\Connection::merge0 N/A% -36 -128.6% -37 -119.4% 0 0.0% 0 0.0%
Drupal\Core\Database\Connection::insert0 N/A% -23 -82.1% -24 -77.4% 0 0.0% -16 -50.0%
Drupal\Core\Database\Connection::update0 N/A% -6 -21.4% -4 -12.9% 0 0.0% 0 0.0%
Drupal\Core\Database\Connection::delete0 N/A% -3 -10.7% -4 -12.9% -16 -100.0% -16 -50.0%
Child functions
class_exists0 N/A% -27 -96.4% -26 -83.9% -16 -100.0% -32 -100.0%
Drupal\Core\Database\Driver\mysql\Connection::driver0 N/A% 0 0.0% 0 0.0% 0 0.0% 0 0.0%