Diff Report
Run #5198f0bb880ef: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198f1db1bc51: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #5198f0bb880efRun #5198f1db1bc51DiffDiff%
Number of Function Calls159 160 1 0.6%
Incl. Wall Time (microsec)1,446 1,461 15 1.0%
Incl. Wall Time (microsec) per call 9 9 0 0.4%
Excl. Wall Time (microsec)734 733 -1 -0.1%
Incl. CPU (microsecs)1,570 1,594 24 1.5%
Incl. CPU (microsecs) per call 10 10 0 0.9%
Excl. CPU (microsec)698 717 19 2.7%
Incl. MemUse (bytes)154,144 155,040 896 0.6%
Incl. MemUse (bytes) per call 969 969 -0 -0.0%
Excl. MemUse (bytes)144,544 145,392 848 0.6%
Incl. PeakMemUse (bytes)6,072 5,936 -136 -2.2%
Incl. PeakMemUse (bytes) per call 38 37 -1 -2.9%
Excl. PeakMemUse (bytes)6,008 5,872 -136 -2.3%

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::prepare1 50.0% 15 0.9% 24 1.1% 896 3.1% -136 -0.4%
Exclusive Metrics Diff for Current Function-1 -6.7% 19 79.2% 848 94.6% -136 -100.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery1 100.0% 15 100.0% 24 100.0% 896 100.0% -136 -100.0%
Child function
Drupal\Core\Database\Statement::__construct1 100.0% 16 106.7% 5 20.8% 48 5.4% 0 0.0%