Diff Report
Run #534ad8dec7444: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #534ad9c94e95b: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #534ad8dec7444Run #534ad9c94e95bDiffDiff%
Number of Function Calls222 222 0 0.0%
Incl. Wall Time (microsec)3,104 3,037 -67 -2.2%
Incl. Wall Time (microsec) per call 14 14 -0 -2.2%
Excl. Wall Time (microsec)1,526 1,507 -19 -1.2%
Incl. CPU (microsecs)3,330 3,260 -70 -2.1%
Incl. CPU (microsecs) per call 15 15 -0 -2.1%
Excl. CPU (microsec)1,547 1,523 -24 -1.6%
Incl. MemUse (bytes)156,928 156,932 4 0.0%
Incl. MemUse (bytes) per call 707 707 0 0.0%
Excl. MemUse (bytes)149,616 149,620 4 0.0%
Incl. PeakMemUse (bytes)39,040 38,656 -384 -1.0%
Incl. PeakMemUse (bytes) per call 176 174 -2 -1.0%
Excl. PeakMemUse (bytes)37,536 37,152 -384 -1.0%

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% -67 -4.1% -70 -14.0% 4 0.0% -384 -1.6%
Exclusive Metrics Diff for Current Function-19 -28.4% -24 -34.3% 4 100.0% -384 -100.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -67 -100.0% -70 -100.0% 4 100.0% -384 -100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -48 -71.6% -46 -65.7% 0 0.0% 0 0.0%