Diff Report
Run #517c1c27a12c9: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c1bb406b02: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #517c1c27a12c9Run #517c1bb406b02DiffDiff%
Number of Function Calls98 251 153 156.1%
Incl. Wall Time (microsec)920 2,238 1,318 143.3%
Incl. Wall Time (microsec) per call 9 9 -0 -5.0%
Excl. Wall Time (microsec)463 1,116 653 141.0%
Incl. CPU (microsecs)999 2,418 1,419 142.0%
Incl. CPU (microsecs) per call 10 10 -1 -5.5%
Excl. CPU (microsec)472 1,093 621 131.6%
Incl. MemUse (bytes)90,568 302,264 211,696 233.7%
Incl. MemUse (bytes) per call 924 1,204 280 30.3%
Excl. MemUse (bytes)83,896 288,248 204,352 243.6%
Incl. PeakMemUse (bytes)9,072 9,448 376 4.1%
Incl. PeakMemUse (bytes) per call 93 38 -55 -59.3%
Excl. PeakMemUse (bytes)7,256 7,752 496 6.8%

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::prepare153 50.0% 1,318 0.5% 1,419 1.2% 211,696 47.6% 376 0.1%
Exclusive Metrics Diff for Current Function653 49.5% 621 43.8% 204,352 96.5% 496 131.9%
Parent function
Drupal\Core\Database\Connection::prepareQuery153 100.0% 1,318 100.0% 1,419 100.0% 211,696 100.0% 376 100.0%
Child function
Drupal\Core\Database\Statement::__construct153 100.0% 665 50.5% 798 56.2% 7,344 3.5% -120 -31.9%