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

PDO::prepareRun #52f2e60305388Run #52f2e62091f2cDiffDiff%
Number of Function Calls158 158 0 0.0%
Incl. Wall Time (microsec)1,334 1,355 21 1.6%
Incl. Wall Time (microsec) per call 8 9 0 1.6%
Excl. Wall Time (microsec)619 627 8 1.3%
Incl. CPU (microsecs)1,446 1,467 21 1.5%
Incl. CPU (microsecs) per call 9 9 0 1.5%
Excl. CPU (microsec)625 651 26 4.2%
Incl. MemUse (bytes)147,608 147,592 -16 -0.0%
Incl. MemUse (bytes) per call 934 934 -0 -0.0%
Excl. MemUse (bytes)138,056 138,040 -16 -0.0%
Incl. PeakMemUse (bytes)14,184 14,320 136 1.0%
Incl. PeakMemUse (bytes) per call 90 91 1 1.0%
Excl. PeakMemUse (bytes)12,592 12,728 136 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 Function8 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%