Diff Report
Run #52e436ce9c71d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e4374042ace: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #52e436ce9c71dRun #52e4374042aceDiffDiff%
Number of Function Calls121 122 1 0.8%
Incl. Wall Time (microsec)1,038 1,031 -7 -0.7%
Incl. Wall Time (microsec) per call 9 8 -0 -1.5%
Excl. Wall Time (microsec)500 495 -5 -1.0%
Incl. CPU (microsecs)1,131 1,140 9 0.8%
Incl. CPU (microsecs) per call 9 9 -0 -0.0%
Excl. CPU (microsec)490 516 26 5.3%
Incl. MemUse (bytes)112,104 113,008 904 0.8%
Incl. MemUse (bytes) per call 926 926 -0 -0.0%
Excl. MemUse (bytes)104,328 105,184 856 0.8%
Incl. PeakMemUse (bytes)17,560 17,944 384 2.2%
Incl. PeakMemUse (bytes) per call 145 147 2 1.3%
Excl. PeakMemUse (bytes)15,016 15,192 176 1.2%

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::prepare1 50.0% -7 -0.6% 9 0.9% 904 1.1% 384 0.5%
Exclusive Metrics Diff for Current Function-5 -71.4% 26 288.9% 856 94.7% 176 45.8%
Parent function
Drupal\Core\Database\Connection::prepareQuery1 100.0% -7 -100.0% 9 100.0% 904 100.0% 384 100.0%
Child function
Drupal\Core\Database\Statement::__construct1 100.0% -2 -28.6% -17 -188.9% 48 5.3% 208 54.2%