Diff Report
Run #52e49acfb0eb8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e49b394aea8: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #52e49acfb0eb8Run #52e49b394aea8DiffDiff%
Number of Function Calls94 95 1 1.1%
Incl. Wall Time (microsec)816 810 -6 -0.7%
Incl. Wall Time (microsec) per call 9 9 -0 -1.8%
Excl. Wall Time (microsec)396 389 -7 -1.8%
Incl. CPU (microsecs)886 887 1 0.1%
Incl. CPU (microsecs) per call 9 9 -0 -0.9%
Excl. CPU (microsec)384 391 7 1.8%
Incl. MemUse (bytes)86,832 87,736 904 1.0%
Incl. MemUse (bytes) per call 924 924 -0 -0.0%
Excl. MemUse (bytes)80,352 81,208 856 1.1%
Incl. PeakMemUse (bytes)12,304 12,248 -56 -0.5%
Incl. PeakMemUse (bytes) per call 131 129 -2 -1.5%
Excl. PeakMemUse (bytes)10,264 10,264 0 0.0%

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% -6 -0.5% 1 0.1% 904 3.5% -56 -0.2%
Exclusive Metrics Diff for Current Function-7 -116.7% 7 700.0% 856 94.7% 0 0.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery1 100.0% -6 -100.0% 1 100.0% 904 100.0% -56 -100.0%
Child function
Drupal\Core\Database\Statement::__construct1 100.0% 1 16.7% -6 -600.0% 48 5.3% -56 -100.0%