Diff Report
Run #51ec243650361: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec227a9cea0: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #51ec243650361Run #51ec227a9cea0DiffDiff%
Number of Function Calls231 231 0 0.0%
Incl. Wall Time (microsec)2,258 2,168 -90 -4.0%
Incl. Wall Time (microsec) per call 10 9 -0 -4.0%
Excl. Wall Time (microsec)1,125 1,054 -71 -6.3%
Incl. CPU (microsecs)2,438 2,347 -91 -3.7%
Incl. CPU (microsecs) per call 11 10 -0 -3.7%
Excl. CPU (microsec)1,123 1,056 -67 -6.0%
Incl. MemUse (bytes)276,792 211,256 -65,536 -23.7%
Incl. MemUse (bytes) per call 1,198 915 -284 -23.7%
Excl. MemUse (bytes)263,736 198,200 -65,536 -24.8%
Incl. PeakMemUse (bytes)15,104 14,352 -752 -5.0%
Incl. PeakMemUse (bytes) per call 65 62 -3 -5.0%
Excl. PeakMemUse (bytes)13,120 12,368 -752 -5.7%

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 -1.0% -91 -1.4% -65,536 -218.6% -752 -2.3%
Exclusive Metrics Diff for Current Function-71 -78.9% -67 -73.6% -65,536 -100.0% -752 -100.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -90 -100.0% -91 -100.0% -65,536 -100.0% -752 -100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -19 -21.1% -24 -26.4% 0 0.0% 0 0.0%