Diff Report
Run #53923d861ff11: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #53923e49d2b58: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #53923d861ff11Run #53923e49d2b58DiffDiff%
Number of Function Calls258 258 0 0.0%
Incl. Wall Time (microsec)3,360 3,334 -26 -0.8%
Incl. Wall Time (microsec) per call 13 13 -0 -0.8%
Excl. Wall Time (microsec)1,686 1,685 -1 -0.1%
Incl. CPU (microsecs)3,581 3,560 -21 -0.6%
Incl. CPU (microsecs) per call 14 14 -0 -0.6%
Excl. CPU (microsec)1,661 1,664 3 0.2%
Incl. MemUse (bytes)206,540 173,788 -32,752 -15.9%
Incl. MemUse (bytes) per call 801 674 -127 -15.9%
Excl. MemUse (bytes)198,220 165,468 -32,752 -16.5%
Incl. PeakMemUse (bytes)104,880 38,820 -66,060 -63.0%
Incl. PeakMemUse (bytes) per call 407 150 -256 -63.0%
Excl. PeakMemUse (bytes)102,472 37,368 -65,104 -63.5%

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% -26 -1.7% -21 -1.9% -32,752 -3756.0% -66,060 -9491.4%
Exclusive Metrics Diff for Current Function-1 -3.8% 3 14.3% -32,752 -100.0% -65,104 -98.6%
Parent function
Drupal\Core\Database\Connection::prepareQuery0 N/A% -26 -100.0% -21 -100.0% -32,752 -100.0% -66,060 -100.0%
Child function
Drupal\Core\Database\Statement::__construct0 N/A% -25 -96.2% -24 -114.3% 0 0.0% -956 -1.4%