Diff Report
Run #517c1770a3264: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c1836bbd84: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #517c1770a3264Run #517c1836bbd84DiffDiff%
Number of Function Calls98 98 0 0.0%
Incl. Wall Time (microsec)894 902 8 0.9%
Incl. Wall Time (microsec) per call 9 9 0 0.9%
Excl. Wall Time (microsec)449 450 1 0.2%
Incl. CPU (microsecs)978 974 -4 -0.4%
Incl. CPU (microsecs) per call 10 10 -0 -0.4%
Excl. CPU (microsec)457 432 -25 -5.5%
Incl. MemUse (bytes)90,568 90,568 0 0.0%
Incl. MemUse (bytes) per call 924 924 0 0.0%
Excl. MemUse (bytes)83,896 83,896 0 0.0%
Incl. PeakMemUse (bytes)8,816 9,008 192 2.2%
Incl. PeakMemUse (bytes) per call 90 92 2 2.2%
Excl. PeakMemUse (bytes)7,120 7,256 136 1.9%

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% 8 0.5% -4 -0.3% 0 0.0% 192 3.2%
Exclusive Metrics Diff for Current Function1 12.5% -25 -625.0% 0 N/A% 136 70.8%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% 8 100.0% -4 -100.0% 0 N/A% 192 100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% 7 87.5% 21 525.0% 0 N/A% 56 29.2%