Diff Report
Run #519eb7a1537f7: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eb880e5974: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #519eb7a1537f7Run #519eb880e5974DiffDiff%
Number of Function Calls188 183 -5 -2.7%
Incl. Wall Time (microsec)3,100 3,009 -91 -2.9%
Incl. Wall Time (microsec) per call 16 16 -0 -0.3%
Excl. Wall Time (microsec)1,447 1,437 -10 -0.7%
Incl. CPU (microsecs)3,294 3,166 -128 -3.9%
Incl. CPU (microsecs) per call 18 17 -0 -1.3%
Excl. CPU (microsec)1,477 1,419 -58 -3.9%
Incl. MemUse (bytes)148,812 145,372 -3,440 -2.3%
Incl. MemUse (bytes) per call 792 794 3 0.4%
Excl. MemUse (bytes)147,752 144,312 -3,440 -2.3%
Incl. PeakMemUse (bytes)22,548 22,476 -72 -0.3%
Incl. PeakMemUse (bytes) per call 120 123 3 2.4%
Excl. PeakMemUse (bytes)21,432 21,360 -72 -0.3%

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-5 -50.0% -91 -2.5% -128 -124.3% -3,440 -1.5% -72 -0.0%
Exclusive Metrics Diff for Current Function-10 -11.0% -58 -45.3% -3,440 -100.0% -72 -100.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery-5 -100.0% -91 -100.0% -128 -100.0% -3,440 -100.0% -72 -100.0%
Child function
Drupal\Core\Database\Statement::__construct-5 -100.0% -81 -89.0% -70 -54.7% 0 0.0% 0 0.0%