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 Drupal\Core\SystemListing::scanDirectory

Drupal\Core\SystemListing::scanDirectoryRun #519eb7a1537f7Run #519eb880e5974DiffDiff%
Number of Function Calls 4 4 N/A%
Incl. Wall Time (microsec) 3,238 3,238 N/A%
Incl. Wall Time (microsec) per call N/A 810 810 N/A%
Excl. Wall Time (microsec) 189 189 N/A%
Incl. CPU (microsecs) 3,243 3,243 N/A%
Incl. CPU (microsecs) per call N/A 811 811 N/A%
Excl. CPU (microsec) 148 148 N/A%
Incl. MemUse (bytes) 15,448 15,448 N/A%
Incl. MemUse (bytes) per call N/A 3,862 3,862 N/A%
Excl. MemUse (bytes) -8 -8 N/A%
Incl. PeakMemUse (bytes) 15,396 15,396 N/A%
Incl. PeakMemUse (bytes) per call N/A 3,849 3,849 N/A%
Excl. PeakMemUse (bytes) 1,688 1,688 N/A%

Parent/Child Regression/Improvement report for Drupal\Core\SystemListing::scanDirectory [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\Core\SystemListing::scanDirectory4 9.5% 3,238 90.3% 3,243 3148.5% 15,448 6.6% 15,396 9.9%
Exclusive Metrics Diff for Current Function189 5.8% 148 4.6% -8 -0.1% 1,688 11.0%
Parent function
Drupal\Core\SystemListing::scan4 100.0% 3,238 100.0% 3,243 100.0% 15,448 100.0% 15,396 100.0%
Child functions
Drupal\Core\SystemListing::scanDirectory@14 10.5% 2,821 87.1% 2,825 87.1% 11,500 74.4% 11,440 74.3%
readdir11 28.9% 82 2.5% 98 3.0% 588 3.8% 344 2.2%
is_dir9 23.7% 64 2.0% 73 2.3% 212 1.4% 212 1.4%
opendir2 5.3% 36 1.1% 37 1.1% 856 5.5% 676 4.4%
preg_match6 15.8% 20 0.6% 27 0.8% 444 2.9% 344 2.2%
array_merge4 10.5% 14 0.4% 20 0.6% 1,832 11.9% 692 4.5%
closedir2 5.3% 12 0.4% 15 0.5% 24 0.2% 0 0.0%