Diff Report
Run #539201f8938f4: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #5392041970f3f: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #539201f8938f4Run #5392041970f3fDiffDiff%
Number of Function Calls170 170 0 0.0%
Incl. Wall Time (microsec)2,214 2,167 -47 -2.1%
Incl. Wall Time (microsec) per call 13 13 -0 -2.1%
Excl. Wall Time (microsec)1,108 1,081 -27 -2.4%
Incl. CPU (microsecs)2,348 2,324 -24 -1.0%
Incl. CPU (microsecs) per call 14 14 -0 -1.0%
Excl. CPU (microsec)1,112 1,091 -21 -1.9%
Incl. MemUse (bytes)105,808 105,812 4 0.0%
Incl. MemUse (bytes) per call 622 622 0 0.0%
Excl. MemUse (bytes)99,952 99,956 4 0.0%
Incl. PeakMemUse (bytes)32,956 33,040 84 0.3%
Incl. PeakMemUse (bytes) per call 194 194 0 0.3%
Excl. PeakMemUse (bytes)31,460 31,544 84 0.3%

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% -47 -3.2% -24 -0.9% 4 0.0% 84 0.1%
Exclusive Metrics Diff for Current Function-27 -57.4% -21 -87.5% 4 100.0% 84 100.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -47 -100.0% -24 -100.0% 4 100.0% 84 100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -20 -42.6% -3 -12.5% 0 0.0% 0 0.0%