Diff Report
Run #519c03b86b1ec: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c04ab45451: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #519c03b86b1ecRun #519c04ab45451DiffDiff%
Number of Function Calls171 172 1 0.6%
Incl. Wall Time (microsec)2,696 2,736 40 1.5%
Incl. Wall Time (microsec) per call 16 16 0 0.9%
Excl. Wall Time (microsec)1,284 1,298 14 1.1%
Incl. CPU (microsecs)2,856 2,891 35 1.2%
Incl. CPU (microsecs) per call 17 17 0 0.6%
Excl. CPU (microsec)1,286 1,302 16 1.2%
Incl. MemUse (bytes)136,024 136,808 784 0.6%
Incl. MemUse (bytes) per call 795 795 -0 -0.0%
Excl. MemUse (bytes)134,964 135,748 784 0.6%
Incl. PeakMemUse (bytes)23,052 22,968 -84 -0.4%
Incl. PeakMemUse (bytes) per call 135 134 -1 -0.9%
Excl. PeakMemUse (bytes)21,964 21,880 -84 -0.4%

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::prepare1 50.0% 40 6.4% 35 2.3% 784 6.2% -84 -0.5%
Exclusive Metrics Diff for Current Function14 35.0% 16 45.7% 784 100.0% -84 -100.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery1 100.0% 40 100.0% 35 100.0% 784 100.0% -84 -100.0%
Child function
Drupal\Core\Database\Statement::__construct1 100.0% 26 65.0% 19 54.3% 0 0.0% 0 0.0%