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

PDO::prepareRun #5391fc871e91dRun #5391fd5a43e70DiffDiff%
Number of Function Calls189 189 0 0.0%
Incl. Wall Time (microsec)2,443 2,424 -19 -0.8%
Incl. Wall Time (microsec) per call 13 13 -0 -0.8%
Excl. Wall Time (microsec)1,225 1,198 -27 -2.2%
Incl. CPU (microsecs)2,608 2,591 -17 -0.7%
Incl. CPU (microsecs) per call 14 14 -0 -0.7%
Excl. CPU (microsec)1,218 1,213 -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)32,704 32,964 260 0.8%
Incl. PeakMemUse (bytes) per call 173 174 1 0.8%
Excl. PeakMemUse (bytes)31,160 31,392 232 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 Function-27 -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%