Diff Report
Run #52e49b394aea8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e49acfb0eb8: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for drupal_substr

drupal_substrRun #52e49b394aea8Run #52e49acfb0eb8DiffDiff%
Number of Function Calls20 20 0 0.0%
Incl. Wall Time (microsec)151 151 0 0.0%
Incl. Wall Time (microsec) per call 8 8 0 0.0%
Excl. Wall Time (microsec)45 46 1 2.2%
Incl. CPU (microsecs)171 170 -1 -0.6%
Incl. CPU (microsecs) per call 9 9 -0 -0.6%
Excl. CPU (microsec)48 51 3 6.2%
Incl. MemUse (bytes)5,856 5,856 0 0.0%
Incl. MemUse (bytes) per call 293 293 0 0.0%
Excl. MemUse (bytes)1,088 1,088 0 0.0%
Incl. PeakMemUse (bytes)2,152 2,856 704 32.7%
Incl. PeakMemUse (bytes) per call 108 143 35 32.7%
Excl. PeakMemUse (bytes)936 1,056 120 12.8%

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% 0 0.0% -1 -0.1% 0 0.0% 704 2.7%
Exclusive Metrics Diff for Current Function1 N/A% 3 300.0% 0 N/A% 120 17.0%
Parent function
file_create_url0 N/A% 0 N/A% -1 -100.0% 0 N/A% 704 100.0%
Child function
Drupal\Component\Utility\Unicode::substr0 N/A% -1 N/A% -4 -400.0% 0 N/A% 584 83.0%