Diff Report
Run #52f2e62cef49a: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52f2e60305388: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #52f2e62cef49aRun #52f2e60305388DiffDiff%
Number of Function Calls158 158 0 0.0%
Incl. Wall Time (microsec)1,348 1,334 -14 -1.0%
Incl. Wall Time (microsec) per call 9 8 -0 -1.0%
Excl. Wall Time (microsec)617 619 2 0.3%
Incl. CPU (microsecs)1,454 1,446 -8 -0.6%
Incl. CPU (microsecs) per call 9 9 -0 -0.6%
Excl. CPU (microsec)609 625 16 2.6%
Incl. MemUse (bytes)147,568 147,608 40 0.0%
Incl. MemUse (bytes) per call 934 934 0 0.0%
Excl. MemUse (bytes)138,016 138,056 40 0.0%
Incl. PeakMemUse (bytes)14,184 14,184 0 0.0%
Incl. PeakMemUse (bytes) per call 90 90 0 0.0%
Excl. PeakMemUse (bytes)12,592 12,592 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::prepare0 N/A% -14 -0.6% -8 -0.4% 40 0.1% 0 0.0%
Exclusive Metrics Diff for Current Function2 14.3% 16 200.0% 40 100.0% 0 N/A%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -14 -100.0% -8 -100.0% 40 100.0% 0 N/A%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -16 -114.3% -24 -300.0% 0 0.0% 0 N/A%