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

PDO::prepareRun #52e49b394aea8Run #52e49acfb0eb8DiffDiff%
Number of Function Calls95 94 -1 -1.1%
Incl. Wall Time (microsec)810 816 6 0.7%
Incl. Wall Time (microsec) per call 9 9 0 1.8%
Excl. Wall Time (microsec)389 396 7 1.8%
Incl. CPU (microsecs)887 886 -1 -0.1%
Incl. CPU (microsecs) per call 9 9 0 0.9%
Excl. CPU (microsec)391 384 -7 -1.8%
Incl. MemUse (bytes)87,736 86,832 -904 -1.0%
Incl. MemUse (bytes) per call 924 924 0 0.0%
Excl. MemUse (bytes)81,208 80,352 -856 -1.1%
Incl. PeakMemUse (bytes)12,248 12,304 56 0.5%
Incl. PeakMemUse (bytes) per call 129 131 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::prepare-1 -50.0% 6 0.5% -1 -0.1% -904 -3.5% 56 0.2%
Exclusive Metrics Diff for Current Function7 116.7% -7 -700.0% -856 -94.7% 0 0.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery-1 -100.0% 6 100.0% -1 -100.0% -904 -100.0% 56 100.0%
Child function
Drupal\Core\Database\Statement::__construct-1 -100.0% -1 -16.7% 6 600.0% -48 -5.3% 56 100.0%