Diff Report
Run #52e436ce9c71d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e4374042ace: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Query\Select::preExecute

Drupal\Core\Database\Query\Select::preExecuteRun #52e436ce9c71dRun #52e4374042aceDiffDiff%
Number of Function Calls6 6 0 0.0%
Incl. Wall Time (microsec)392 233 -159 -40.6%
Incl. Wall Time (microsec) per call 65 39 -27 -40.6%
Excl. Wall Time (microsec)50 50 0 0.0%
Incl. CPU (microsecs)400 236 -164 -41.0%
Incl. CPU (microsecs) per call 67 39 -27 -41.0%
Excl. CPU (microsec)50 47 -3 -6.0%
Incl. MemUse (bytes)25,048 8,664 -16,384 -65.4%
Incl. MemUse (bytes) per call 4,175 1,444 -2,731 -65.4%
Excl. MemUse (bytes)1,888 1,888 0 0.0%
Incl. PeakMemUse (bytes)37,656 7,968 -29,688 -78.8%
Incl. PeakMemUse (bytes) per call 6,276 1,328 -4,948 -78.8%
Excl. PeakMemUse (bytes)1,464 1,360 -104 -7.1%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Query\Select::preExecute [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\Query\Select::preExecute0 N/A% -159 -13.6% -164 -16.2% -16,384 -20.2% -29,688 -37.0%
Exclusive Metrics Diff for Current Function0 0.0% -3 -1.8% 0 0.0% -104 -0.4%
Parent function
Drupal\Core\Database\Query\Select::execute0 N/A% -159 -100.0% -164 -100.0% -16,384 -100.0% -29,688 -100.0%
Child functions
drupal_alter0 N/A% -160 -100.6% -159 -97.0% -16,384 -100.0% -29,208 -98.4%
Drupal\Core\Database\Query\Select::isPrepared0 N/A% 1 0.6% -2 -1.2% 0 0.0% -376 -1.3%