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

PDO::prepareRun #53923e49d2b58Run #53923d861ff11DiffDiff%
Number of Function Calls258 258 0 0.0%
Incl. Wall Time (microsec)3,334 3,360 26 0.8%
Incl. Wall Time (microsec) per call 13 13 0 0.8%
Excl. Wall Time (microsec)1,685 1,686 1 0.1%
Incl. CPU (microsecs)3,560 3,581 21 0.6%
Incl. CPU (microsecs) per call 14 14 0 0.6%
Excl. CPU (microsec)1,664 1,661 -3 -0.2%
Incl. MemUse (bytes)173,788 206,540 32,752 18.8%
Incl. MemUse (bytes) per call 674 801 127 18.8%
Excl. MemUse (bytes)165,468 198,220 32,752 19.8%
Incl. PeakMemUse (bytes)38,820 104,880 66,060 170.2%
Incl. PeakMemUse (bytes) per call 150 407 256 170.2%
Excl. PeakMemUse (bytes)37,368 102,472 65,104 174.2%

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 Function1 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%