Diff Report
Run #52c96b69a1c07: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52c96bbf45f87: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #52c96b69a1c07Run #52c96bbf45f87DiffDiff%
Number of Function Calls74 74 0 0.0%
Incl. Wall Time (microsec)555 538 -17 -3.1%
Incl. Wall Time (microsec) per call 8 7 -0 -3.1%
Excl. Wall Time (microsec)259 254 -5 -1.9%
Incl. CPU (microsecs)607 596 -11 -1.8%
Incl. CPU (microsecs) per call 8 8 -0 -1.8%
Excl. CPU (microsec)268 254 -14 -5.2%
Incl. MemUse (bytes)68,720 68,720 0 0.0%
Incl. MemUse (bytes) per call 929 929 0 0.0%
Excl. MemUse (bytes)63,200 63,200 0 0.0%
Incl. PeakMemUse (bytes)11,560 11,880 320 2.8%
Incl. PeakMemUse (bytes) per call 156 161 4 2.8%
Excl. PeakMemUse (bytes)9,464 9,840 376 4.0%

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% -17 -3.0% -11 -2.0% 0 0.0% 320 0.6%
Exclusive Metrics Diff for Current Function-5 -29.4% -14 -127.3% 0 N/A% 376 117.5%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -17 -100.0% -11 -100.0% 0 N/A% 320 100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -12 -70.6% 3 27.3% 0 N/A% -56 -17.5%