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

PDO::prepareRun #51ec52a09990aRun #51ec517fc2424DiffDiff%
Number of Function Calls170 170 0 0.0%
Incl. Wall Time (microsec)1,586 1,590 4 0.3%
Incl. Wall Time (microsec) per call 9 9 0 0.3%
Excl. Wall Time (microsec)770 769 -1 -0.1%
Incl. CPU (microsecs)1,712 1,714 2 0.1%
Incl. CPU (microsecs) per call 10 10 0 0.1%
Excl. CPU (microsec)758 745 -13 -1.7%
Incl. MemUse (bytes)165,336 165,288 -48 -0.0%
Incl. MemUse (bytes) per call 973 972 -0 -0.0%
Excl. MemUse (bytes)155,208 155,160 -48 -0.0%
Incl. PeakMemUse (bytes)13,032 13,288 256 2.0%
Incl. PeakMemUse (bytes) per call 77 78 2 2.0%
Excl. PeakMemUse (bytes)10,872 11,032 160 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 Function-1 -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%