Diff Report
Run #517c75d3de7c7: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c76da9b0d3: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Database\Connection::getDriverClass

Drupal\Core\Database\Connection::getDriverClassRun #517c75d3de7c7Run #517c76da9b0d3DiffDiff%
Number of Function Calls156 3 -153 -98.1%
Incl. Wall Time (microsec)1,203 680 -523 -43.5%
Incl. Wall Time (microsec) per call 8 227 219 2839.3%
Excl. Wall Time (microsec)196 17 -179 -91.3%
Incl. CPU (microsecs)1,344 684 -660 -49.1%
Incl. CPU (microsecs) per call 9 228 219 2546.4%
Excl. CPU (microsec)328 19 -309 -94.2%
Incl. MemUse (bytes)224,576 146,536 -78,040 -34.7%
Incl. MemUse (bytes) per call 1,440 48,845 47,406 3293.0%
Excl. MemUse (bytes)3,856 1,896 -1,960 -50.8%
Incl. PeakMemUse (bytes)196,664 145,176 -51,488 -26.2%
Incl. PeakMemUse (bytes) per call 1,261 48,392 47,131 3738.6%
Excl. PeakMemUse (bytes)2,456 1,704 -752 -30.6%

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::getDriverClass-153 -97.5% -523 -0.2% -660 -0.7% -78,040 -32.1% -51,488 -14.6%
Exclusive Metrics Diff for Current Function-179 -34.2% -309 -46.8% -1,960 -2.5% -752 -1.5%
Parent functions
Drupal\Core\Database\Connection::insert-151 -98.7% -343 -65.6% -475 -72.0% -31,992 -41.0% -22,608 -43.9%
Drupal\Core\Database\Connection::merge-1 -0.7% -180 -34.4% -181 -27.4% -46,064 -59.0% -28,720 -55.8%
Drupal\Core\Database\Connection::select-1 -0.7% 0 0.0% -4 -0.6% 16 0.0% -160 -0.3%
Child functions
class_exists-2 -50.0% -342 -65.4% -346 -52.4% -75,984 -97.4% -50,688 -98.4%
Drupal\Core\Database\Driver\mysql\Connection::driver-2 -50.0% -2 -0.4% -5 -0.8% -96 -0.1% -48 -0.1%