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

PDO::prepareRun #517c1bb406b02Run #517c1c27a12c9DiffDiff%
Number of Function Calls251 98 -153 -61.0%
Incl. Wall Time (microsec)2,238 920 -1,318 -58.9%
Incl. Wall Time (microsec) per call 9 9 0 5.3%
Excl. Wall Time (microsec)1,116 463 -653 -58.5%
Incl. CPU (microsecs)2,418 999 -1,419 -58.7%
Incl. CPU (microsecs) per call 10 10 1 5.8%
Excl. CPU (microsec)1,093 472 -621 -56.8%
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)9,448 9,072 -376 -4.0%
Incl. PeakMemUse (bytes) per call 38 93 55 145.9%
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% -1,318 -0.5% -1,419 -1.2% -211,696 -47.6% -376 -0.1%
Exclusive Metrics Diff for Current Function-653 -49.5% -621 -43.8% -204,352 -96.5% -496 -131.9%
Parent function
Drupal\Core\Database\Connection::prepareQuery-153 -100.0% -1,318 -100.0% -1,419 -100.0% -211,696 -100.0% -376 -100.0%
Child function
Drupal\Core\Database\Statement::__construct-153 -100.0% -665 -50.5% -798 -56.2% -7,344 -3.5% 120 31.9%