Diff Report
Run #539206aca7ae8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539205a48c548: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #539206aca7ae8Run #539205a48c548DiffDiff%
Number of Function Calls196 196 0 0.0%
Incl. Wall Time (microsec)2,592 2,559 -33 -1.3%
Incl. Wall Time (microsec) per call 13 13 -0 -1.3%
Excl. Wall Time (microsec)1,312 1,296 -16 -1.2%
Incl. CPU (microsecs)2,757 2,744 -13 -0.5%
Incl. CPU (microsecs) per call 14 14 -0 -0.5%
Excl. CPU (microsec)1,290 1,298 8 0.6%
Incl. MemUse (bytes)119,784 119,844 60 0.1%
Incl. MemUse (bytes) per call 611 611 0 0.1%
Excl. MemUse (bytes)113,200 113,260 60 0.1%
Incl. PeakMemUse (bytes)33,388 33,324 -64 -0.2%
Incl. PeakMemUse (bytes) per call 170 170 -0 -0.2%
Excl. PeakMemUse (bytes)31,816 31,780 -36 -0.1%

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% -33 -0.7% -13 -0.3% 60 0.1% -64 -0.1%
Exclusive Metrics Diff for Current Function-16 -48.5% 8 61.5% 60 100.0% -36 -56.2%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -33 -100.0% -13 -100.0% 60 100.0% -64 -100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -17 -51.5% -21 -161.5% 0 0.0% -28 -43.8%