Diff Report
Run #539205a48c548: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539206aca7ae8: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #539205a48c548Run #539206aca7ae8DiffDiff%
Number of Function Calls196 196 0 0.0%
Incl. Wall Time (microsec)2,559 2,592 33 1.3%
Incl. Wall Time (microsec) per call 13 13 0 1.3%
Excl. Wall Time (microsec)1,296 1,312 16 1.2%
Incl. CPU (microsecs)2,744 2,757 13 0.5%
Incl. CPU (microsecs) per call 14 14 0 0.5%
Excl. CPU (microsec)1,298 1,290 -8 -0.6%
Incl. MemUse (bytes)119,844 119,784 -60 -0.1%
Incl. MemUse (bytes) per call 611 611 -0 -0.1%
Excl. MemUse (bytes)113,260 113,200 -60 -0.1%
Incl. PeakMemUse (bytes)33,324 33,388 64 0.2%
Incl. PeakMemUse (bytes) per call 170 170 0 0.2%
Excl. PeakMemUse (bytes)31,780 31,816 36 0.1%

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% 33 0.7% 13 0.3% -60 -0.1% 64 0.1%
Exclusive Metrics Diff for Current Function16 48.5% -8 -61.5% -60 -100.0% 36 56.2%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% 33 100.0% 13 100.0% -60 -100.0% 64 100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% 17 51.5% 21 161.5% 0 0.0% 28 43.8%