Diff Report
Run #517d51ae434de: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517d52b5a5611: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #517d51ae434deRun #517d52b5a5611DiffDiff%
Number of Function Calls98 98 0 0.0%
Incl. Wall Time (microsec)890 861 -29 -3.3%
Incl. Wall Time (microsec) per call 9 9 -0 -3.3%
Excl. Wall Time (microsec)447 432 -15 -3.4%
Incl. CPU (microsecs)974 930 -44 -4.5%
Incl. CPU (microsecs) per call 10 9 -0 -4.5%
Excl. CPU (microsec)454 417 -37 -8.1%
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)8,936 9,128 192 2.1%
Incl. PeakMemUse (bytes) per call 91 93 2 2.1%
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% -29 -1.2% -44 -3.2% 0 0.0% 192 1.9%
Exclusive Metrics Diff for Current Function-15 -51.7% -37 -84.1% 0 N/A% 136 70.8%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -29 -100.0% -44 -100.0% 0 N/A% 192 100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -14 -48.3% -7 -15.9% 0 N/A% 56 29.2%