Diff Report
Run #52f2e62091f2c: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52f2e60305388: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #52f2e62091f2cRun #52f2e60305388DiffDiff%
Number of Function Calls158 158 0 0.0%
Incl. Wall Time (microsec)1,355 1,334 -21 -1.5%
Incl. Wall Time (microsec) per call 9 8 -0 -1.5%
Excl. Wall Time (microsec)627 619 -8 -1.3%
Incl. CPU (microsecs)1,467 1,446 -21 -1.4%
Incl. CPU (microsecs) per call 9 9 -0 -1.4%
Excl. CPU (microsec)651 625 -26 -4.0%
Incl. MemUse (bytes)147,592 147,608 16 0.0%
Incl. MemUse (bytes) per call 934 934 0 0.0%
Excl. MemUse (bytes)138,040 138,056 16 0.0%
Incl. PeakMemUse (bytes)14,320 14,184 -136 -0.9%
Incl. PeakMemUse (bytes) per call 91 90 -1 -0.9%
Excl. PeakMemUse (bytes)12,728 12,592 -136 -1.1%

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% -21 -1.5% -21 -0.8% 16 7.7% -136 -18.9%
Exclusive Metrics Diff for Current Function-8 -38.1% -26 -123.8% 16 100.0% -136 -100.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -21 -100.0% -21 -100.0% 16 100.0% -136 -100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -13 -61.9% 5 23.8% 0 0.0% 0 0.0%