Diff Report
Run #5392041970f3f: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539201f8938f4: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Component\Utility\Unicode::substr

Drupal\Component\Utility\Unicode::substrRun #5392041970f3fRun #539201f8938f4DiffDiff%
Number of Function Calls4 3 -1 -25.0%
Incl. Wall Time (microsec)49 36 -13 -26.5%
Incl. Wall Time (microsec) per call 12 12 -0 -2.0%
Excl. Wall Time (microsec)37 27 -10 -27.0%
Incl. CPU (microsecs)56 39 -17 -30.4%
Incl. CPU (microsecs) per call 14 13 -1 -7.1%
Excl. CPU (microsec)36 20 -16 -44.4%
Incl. MemUse (bytes)1,952 1,904 -48 -2.5%
Incl. MemUse (bytes) per call 488 635 147 30.1%
Excl. MemUse (bytes)952 924 -28 -2.9%
Incl. PeakMemUse (bytes)1,592 1,632 40 2.5%
Incl. PeakMemUse (bytes) per call 398 544 146 36.7%
Excl. PeakMemUse (bytes)780 868 88 11.3%

Parent/Child Regression/Improvement report for Drupal\Component\Utility\Unicode::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\Component\Utility\Unicode::substr-1 -33.3% -13 -0.9% -17 -0.6% -48 -0.1% 40 0.1%
Exclusive Metrics Diff for Current Function-10 -76.9% -16 -94.1% -28 -58.3% 88 220.0%
Parent function
drupal_substr-1 -100.0% -13 -100.0% -17 -100.0% -48 -100.0% 40 100.0%
Child functions
mb_substr-1 -50.0% -2 -15.4% 3 17.6% -20 -41.7% 0 0.0%
Drupal\Component\Utility\Unicode::getStatus-1 -50.0% -1 -7.7% -4 -23.5% 0 0.0% -48 -120.0%