Diff Report
Run #519d4cd4e396d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d4dc9980f7: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #519d4cd4e396dRun #519d4dc9980f7DiffDiff%
Number of Function Calls180 180 0 0.0%
Incl. Wall Time (microsec)2,960 2,870 -90 -3.0%
Incl. Wall Time (microsec) per call 16 16 -0 -3.0%
Excl. Wall Time (microsec)1,462 1,385 -77 -5.3%
Incl. CPU (microsecs)3,148 3,034 -114 -3.6%
Incl. CPU (microsecs) per call 17 17 -1 -3.6%
Excl. CPU (microsec)1,455 1,387 -68 -4.7%
Incl. MemUse (bytes)142,816 142,800 -16 -0.0%
Incl. MemUse (bytes) per call 793 793 -0 -0.0%
Excl. MemUse (bytes)141,756 141,740 -16 -0.0%
Incl. PeakMemUse (bytes)22,168 22,084 -84 -0.4%
Incl. PeakMemUse (bytes) per call 123 123 -0 -0.4%
Excl. PeakMemUse (bytes)21,052 20,968 -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::prepare0 N/A% -90 -0.6% -114 -0.8% -16 -2.4% -84 -13.0%
Exclusive Metrics Diff for Current Function-77 -85.6% -68 -59.6% -16 -100.0% -84 -100.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -90 -100.0% -114 -100.0% -16 -100.0% -84 -100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -13 -14.4% -46 -40.4% 0 0.0% 0 0.0%