Diff Report
Run #51ec517fc2424: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec52a09990a: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #51ec517fc2424Run #51ec52a09990aDiffDiff%
Number of Function Calls170 170 0 0.0%
Incl. Wall Time (microsec)1,590 1,586 -4 -0.3%
Incl. Wall Time (microsec) per call 9 9 -0 -0.3%
Excl. Wall Time (microsec)769 770 1 0.1%
Incl. CPU (microsecs)1,714 1,712 -2 -0.1%
Incl. CPU (microsecs) per call 10 10 -0 -0.1%
Excl. CPU (microsec)745 758 13 1.7%
Incl. MemUse (bytes)165,288 165,336 48 0.0%
Incl. MemUse (bytes) per call 972 973 0 0.0%
Excl. MemUse (bytes)155,160 155,208 48 0.0%
Incl. PeakMemUse (bytes)13,288 13,032 -256 -1.9%
Incl. PeakMemUse (bytes) per call 78 77 -2 -1.9%
Excl. PeakMemUse (bytes)11,032 10,872 -160 -1.5%

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% -4 -0.1% -2 -0.0% 48 0.2% -256 -1.1%
Exclusive Metrics Diff for Current Function1 25.0% 13 650.0% 48 100.0% -160 -62.5%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -4 -100.0% -2 -100.0% 48 100.0% -256 -100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -5 -125.0% -15 -750.0% 0 0.0% -96 -37.5%