Diff Report
Run #534ad972c8c0d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #534ad8dec7444: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #534ad972c8c0dRun #534ad8dec7444DiffDiff%
Number of Function Calls222 222 0 0.0%
Incl. Wall Time (microsec)3,119 3,104 -15 -0.5%
Incl. Wall Time (microsec) per call 14 14 -0 -0.5%
Excl. Wall Time (microsec)1,564 1,526 -38 -2.4%
Incl. CPU (microsecs)3,342 3,330 -12 -0.4%
Incl. CPU (microsecs) per call 15 15 -0 -0.4%
Excl. CPU (microsec)1,589 1,547 -42 -2.6%
Incl. MemUse (bytes)156,928 156,928 0 0.0%
Incl. MemUse (bytes) per call 707 707 0 0.0%
Excl. MemUse (bytes)149,616 149,616 0 0.0%
Incl. PeakMemUse (bytes)39,040 39,040 0 0.0%
Incl. PeakMemUse (bytes) per call 176 176 0 0.0%
Excl. PeakMemUse (bytes)37,536 37,536 0 0.0%

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% -15 -1.0% -12 -2.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-38 -253.3% -42 -350.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -15 -100.0% -12 -100.0% 0 N/A% 0 N/A%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% 23 153.3% 30 250.0% 0 N/A% 0 N/A%