Diff Report
Run #519d4cd4e396d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d4d6ecb28c: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #519d4cd4e396dRun #519d4d6ecb28cDiffDiff%
Number of Function Calls180 180 0 0.0%
Incl. Wall Time (microsec)2,960 2,850 -110 -3.7%
Incl. Wall Time (microsec) per call 16 16 -1 -3.7%
Excl. Wall Time (microsec)1,462 1,378 -84 -5.7%
Incl. CPU (microsecs)3,148 3,023 -125 -4.0%
Incl. CPU (microsecs) per call 17 17 -1 -4.0%
Excl. CPU (microsec)1,455 1,359 -96 -6.6%
Incl. MemUse (bytes)142,816 142,816 0 0.0%
Incl. MemUse (bytes) per call 793 793 0 0.0%
Excl. MemUse (bytes)141,756 141,756 0 0.0%
Incl. PeakMemUse (bytes)22,168 22,168 0 0.0%
Incl. PeakMemUse (bytes) per call 123 123 0 0.0%
Excl. PeakMemUse (bytes)21,052 21,052 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% -110 -14.6% -125 -39.4% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-84 -76.4% -96 -76.8% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -110 -100.0% -125 -100.0% 0 N/A% 0 N/A%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -26 -23.6% -29 -23.2% 0 N/A% 0 N/A%