Diff Report
Run #519be9a13e594: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519bea9000214: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #519be9a13e594Run #519bea9000214DiffDiff%
Number of Function Calls149 150 1 0.7%
Incl. Wall Time (microsec)2,271 2,257 -14 -0.6%
Incl. Wall Time (microsec) per call 15 15 -0 -1.3%
Excl. Wall Time (microsec)1,095 1,081 -14 -1.3%
Incl. CPU (microsecs)2,414 2,408 -6 -0.2%
Incl. CPU (microsecs) per call 16 16 -0 -0.9%
Excl. CPU (microsec)1,093 1,104 11 1.0%
Incl. MemUse (bytes)119,352 120,136 784 0.7%
Incl. MemUse (bytes) per call 801 801 -0 -0.0%
Excl. MemUse (bytes)118,292 119,076 784 0.7%
Incl. PeakMemUse (bytes)23,564 23,680 116 0.5%
Incl. PeakMemUse (bytes) per call 158 158 -0 -0.2%
Excl. PeakMemUse (bytes)22,448 22,564 116 0.5%

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% -14 -0.4% -6 -0.3% 784 3.1% 116 0.5%
Exclusive Metrics Diff for Current Function-14 -100.0% 11 183.3% 784 100.0% 116 100.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery1 100.0% -14 -100.0% -6 -100.0% 784 100.0% 116 100.0%
Child function
Drupal\Core\Database\Statement::__construct1 100.0% 0 0.0% -17 -283.3% 0 0.0% 0 0.0%