Diff Report
Run #5391fd5a43e70: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #5391fc871e91d: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #5391fd5a43e70Run #5391fc871e91dDiffDiff%
Number of Function Calls189 189 0 0.0%
Incl. Wall Time (microsec)2,424 2,443 19 0.8%
Incl. Wall Time (microsec) per call 13 13 0 0.8%
Excl. Wall Time (microsec)1,198 1,225 27 2.3%
Incl. CPU (microsecs)2,591 2,608 17 0.7%
Incl. CPU (microsecs) per call 14 14 0 0.7%
Excl. CPU (microsec)1,213 1,218 5 0.4%
Incl. MemUse (bytes)115,940 115,940 0 0.0%
Incl. MemUse (bytes) per call 613 613 0 0.0%
Excl. MemUse (bytes)109,552 109,552 0 0.0%
Incl. PeakMemUse (bytes)32,964 32,704 -260 -0.8%
Incl. PeakMemUse (bytes) per call 174 173 -1 -0.8%
Excl. PeakMemUse (bytes)31,392 31,160 -232 -0.7%

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% 19 1.1% 17 4.2% 0 0.0% -260 -1.0%
Exclusive Metrics Diff for Current Function27 142.1% 5 29.4% 0 N/A% -232 -89.2%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% 19 100.0% 17 100.0% 0 N/A% -260 -100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -8 -42.1% 12 70.6% 0 N/A% -28 -10.8%