Diff Report
Run #51ec485525502: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec491641923: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #51ec485525502Run #51ec491641923DiffDiff%
Number of Function Calls182 182 0 0.0%
Incl. Wall Time (microsec)1,692 1,668 -24 -1.4%
Incl. Wall Time (microsec) per call 9 9 -0 -1.4%
Excl. Wall Time (microsec)805 803 -2 -0.2%
Incl. CPU (microsecs)1,846 1,816 -30 -1.6%
Incl. CPU (microsecs) per call 10 10 -0 -1.6%
Excl. CPU (microsec)821 810 -11 -1.3%
Incl. MemUse (bytes)175,848 175,848 0 0.0%
Incl. MemUse (bytes) per call 966 966 0 0.0%
Excl. MemUse (bytes)165,144 165,144 0 0.0%
Incl. PeakMemUse (bytes)13,248 13,328 80 0.6%
Incl. PeakMemUse (bytes) per call 73 73 0 0.6%
Excl. PeakMemUse (bytes)11,264 11,400 136 1.2%

Parent/Child Regression/Improvement report for PDO::prepare [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
PDO::prepare0 N/A% -24 -1.5% -30 -1.7% 0 0.0% 80 0.1%
Exclusive Metrics Diff for Current Function-2 -8.3% -11 -36.7% 0 N/A% 136 170.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -24 -100.0% -30 -100.0% 0 N/A% 80 100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -22 -91.7% -19 -63.3% 0 N/A% -56 -70.0%