Diff Report
Run #519b1ad213669: XHProf Run (Namespace=drupal-perf-jenlampton)
vs.
Run #519b1557bbc04: XHProf Run (Namespace=drupal-perf-jenlampton)
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Regression/Improvement summary for Drupal\Core\Database\Connection::getDriverClass

Drupal\Core\Database\Connection::getDriverClassRun #519b1ad213669Run #519b1557bbc04DiffDiff%
Number of Function Calls25 20 -5 -20.0%
Incl. Wall Time (microsec)7,574 4,830 -2,744 -36.2%
Incl. Wall Time (microsec) per call 303 242 -61 -20.3%
Excl. Wall Time (microsec)162 110 -52 -32.1%
Incl. CPU (microsecs)7,615 4,857 -2,758 -36.2%
Incl. CPU (microsecs) per call 305 243 -62 -20.3%
Excl. CPU (microsec)191 128 -63 -33.0%
Incl. MemUse (bytes)623,400 405,808 -217,592 -34.9%
Incl. MemUse (bytes) per call 24,936 20,290 -4,646 -18.6%
Excl. MemUse (bytes)4,664 2,760 -1,904 -40.8%
Incl. PeakMemUse (bytes)567,104 406,312 -160,792 -28.4%
Incl. PeakMemUse (bytes) per call 22,684 20,316 -2,369 -10.4%
Excl. PeakMemUse (bytes)2,328 2,248 -80 -3.4%

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-5 -55.6% -2,744 -22.8% -2,758 -18.3% -217,592 -84.9% -160,792 -71.8%
Exclusive Metrics Diff for Current Function-52 -1.9% -63 -2.3% -1,904 -0.9% -80 -0.0%
Parent functions
Drupal\Core\Database\Connection::insert-3 -60.0% -1,383 -50.4% -1,390 -50.4% -110,064 -50.6% -113,128 -70.4%
Drupal\Core\Database\Connection::merge-1 -20.0% -1,163 -42.4% -1,165 -42.2% -107,568 -49.4% -47,704 -29.7%
Drupal\Core\Database\Connection::select-1 -20.0% -193 -7.0% -197 -7.1% 40 0.0% 40 0.0%
Drupal\Core\Database\Query\SelectExtender::extend0 0.0% -5 -0.2% -6 -0.2% 0 0.0% 0 0.0%
Child functions
class_exists-2 -50.0% -2,688 -98.0% -2,690 -97.5% -215,528 -99.1% -160,712 -100.0%
Drupal\Core\Database\Driver\mysql\Connection::driver-2 -50.0% -4 -0.1% -5 -0.2% -160 -0.1% 0 0.0%