Diff Report
Run #53920b950c201: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #53920c043e98b: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for drupal_substr

drupal_substrRun #53920b950c201Run #53920c043e98bDiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)54 52 -2 -3.7%
Incl. Wall Time (microsec) per call 18 17 -1 -3.7%
Excl. Wall Time (microsec)14 15 1 7.1%
Incl. CPU (microsecs)59 56 -3 -5.1%
Incl. CPU (microsecs) per call 20 19 -1 -5.1%
Excl. CPU (microsec)16 15 -1 -6.2%
Incl. MemUse (bytes)2,492 2,492 0 0.0%
Incl. MemUse (bytes) per call 831 831 0 0.0%
Excl. MemUse (bytes)588 588 0 0.0%
Incl. PeakMemUse (bytes)2,284 2,284 0 0.0%
Incl. PeakMemUse (bytes) per call 761 761 0 0.0%
Excl. PeakMemUse (bytes)496 496 0 0.0%

Parent/Child Regression/Improvement report for drupal_substr [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
drupal_substr0 N/A% -2 -0.6% -3 -1.6% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function1 50.0% -1 -33.3% 0 N/A% 0 N/A%
Parent function
file_create_url0 N/A% -2 -100.0% -3 -100.0% 0 N/A% 0 N/A%
Child function
Drupal\Component\Utility\Unicode::substr0 N/A% -3 -150.0% -2 -66.7% 0 N/A% 0 N/A%