Diff Report
Run #517c75d3de7c7: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c76da9b0d3: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #517c75d3de7c7Run #517c76da9b0d3DiffDiff%
Number of Function Calls251 98 -153 -61.0%
Incl. Wall Time (microsec)2,164 861 -1,303 -60.2%
Incl. Wall Time (microsec) per call 9 9 0 1.9%
Excl. Wall Time (microsec)1,078 435 -643 -59.6%
Incl. CPU (microsecs)2,354 938 -1,416 -60.2%
Incl. CPU (microsecs) per call 9 10 0 2.1%
Excl. CPU (microsec)1,061 424 -637 -60.0%
Incl. MemUse (bytes)302,264 90,568 -211,696 -70.0%
Incl. MemUse (bytes) per call 1,204 924 -280 -23.3%
Excl. MemUse (bytes)288,248 83,896 -204,352 -70.9%
Incl. PeakMemUse (bytes)9,512 9,072 -440 -4.6%
Incl. PeakMemUse (bytes) per call 38 93 55 144.3%
Excl. PeakMemUse (bytes)7,752 7,256 -496 -6.4%

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-153 -50.0% -1,303 -0.5% -1,416 -1.4% -211,696 -87.1% -440 -0.1%
Exclusive Metrics Diff for Current Function-643 -49.3% -637 -45.0% -204,352 -96.5% -496 -112.7%
Parent function
Drupal\Core\Database\Connection::prepareQuery-153 -100.0% -1,303 -100.0% -1,416 -100.0% -211,696 -100.0% -440 -100.0%
Child function
Drupal\Core\Database\Statement::__construct-153 -100.0% -660 -50.7% -779 -55.0% -7,344 -3.5% 56 12.7%