Diff Report
Run #52f5cb0964fa0: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5cbc19a0d8: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Component\Utility\Crypt::randomBytes

Drupal\Component\Utility\Crypt::randomBytesRun #52f5cb0964fa0Run #52f5cbc19a0d8DiffDiff%
Number of Function Calls21 21 0 0.0%
Incl. Wall Time (microsec)963 1,010 47 4.9%
Incl. Wall Time (microsec) per call 46 48 2 4.9%
Excl. Wall Time (microsec)251 315 64 25.5%
Incl. CPU (microsecs)986 1,026 40 4.1%
Incl. CPU (microsecs) per call 47 49 2 4.1%
Excl. CPU (microsec)223 254 31 13.9%
Incl. MemUse (bytes)17,352 17,368 16 0.1%
Incl. MemUse (bytes) per call 826 827 1 0.1%
Excl. MemUse (bytes)-77,600 -77,768 -168 -0.2%
Incl. PeakMemUse (bytes)157,688 158,392 704 0.4%
Incl. PeakMemUse (bytes) per call 7,509 7,542 34 0.4%
Excl. PeakMemUse (bytes)71,712 72,056 344 0.5%

Parent/Child Regression/Improvement report for Drupal\Component\Utility\Crypt::randomBytes [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\Crypt::randomBytes0 N/A% 47 50.5% 40 20.5% 16 0.1% 704 2.4%
Exclusive Metrics Diff for Current Function64 136.2% 31 77.5% -168 -1050.0% 344 48.9%
Parent functions
Drupal\Component\Uuid\Php::generate0 N/A% 46 97.9% 39 97.5% 16 100.0% 832 118.2%
Drupal\Component\Utility\Crypt::randomStringHashed0 N/A% 1 2.1% 1 2.5% 0 0.0% -128 -18.2%
Child functions
fopen0 N/A% -12 -25.5% 10 25.0% 0 0.0% 0 0.0%
fread0 N/A% -6 -12.8% -6 -15.0% 0 0.0% -8 -1.1%
substr0 N/A% 2 4.3% 7 17.5% 160 1000.0% 344 48.9%
print_r0 N/A% -1 -2.1% -3 -7.5% 24 150.0% 24 3.4%
fclose0 N/A% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
max0 N/A% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
strlen0 N/A% 0 0.0% 2 5.0% 0 0.0% 0 0.0%
getmypid0 N/A% 0 0.0% -1 -2.5% 0 0.0% 0 0.0%