Diff Report
Run #538e3b37c1a66: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #538e3ac0de109: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #538e3b37c1a66Run #538e3ac0de109DiffDiff%
Number of Function Calls139 137 -2 -1.4%
Incl. Wall Time (microsec)1,142 1,118 -24 -2.1%
Incl. Wall Time (microsec) per call 8 8 -0 -0.7%
Excl. Wall Time (microsec)551 532 -19 -3.4%
Incl. CPU (microsecs)1,242 1,226 -16 -1.3%
Incl. CPU (microsecs) per call 9 9 0 0.2%
Excl. CPU (microsec)544 538 -6 -1.1%
Incl. MemUse (bytes)128,056 126,216 -1,840 -1.4%
Incl. MemUse (bytes) per call 921 921 0 0.0%
Excl. MemUse (bytes)119,416 117,672 -1,744 -1.5%
Incl. PeakMemUse (bytes)12,240 12,264 24 0.2%
Incl. PeakMemUse (bytes) per call 88 90 1 1.7%
Excl. PeakMemUse (bytes)10,432 10,512 80 0.8%

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::prepare-2 -50.0% -24 -0.6% -16 -0.4% -1,840 -1.7% 24 0.0%
Exclusive Metrics Diff for Current Function-19 -79.2% -6 -37.5% -1,744 -94.8% 80 333.3%
Parent function
Drupal\Core\Database\Connection::prepareQuery-2 -100.0% -24 -100.0% -16 -100.0% -1,840 -100.0% 24 100.0%
Child function
Drupal\Core\Database\Statement::__construct-2 -100.0% -5 -20.8% -10 -62.5% -96 -5.2% -56 -233.3%