Diff Report
Run #539fd0a78f1b7: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #539fd2b68bc13: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Asset\CssCollectionOptimizer::optimize

Drupal\Core\Asset\CssCollectionOptimizer::optimizeRun #539fd0a78f1b7Run #539fd2b68bc13DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,029 1,197 168 16.3%
Incl. Wall Time (microsec) per call 1,029 1,197 168 16.3%
Excl. Wall Time (microsec)68 79 11 16.2%
Incl. CPU (microsecs)968 1,164 196 20.2%
Incl. CPU (microsecs) per call 968 1,164 196 20.2%
Excl. CPU (microsec)61 67 6 9.8%
Incl. MemUse (bytes)24,688 24,720 32 0.1%
Incl. MemUse (bytes) per call 24,688 24,720 32 0.1%
Excl. MemUse (bytes)-12,368 -12,368 0 0.0%
Incl. PeakMemUse (bytes)19,200 23,416 4,216 22.0%
Incl. PeakMemUse (bytes) per call 19,200 23,416 4,216 22.0%
Excl. PeakMemUse (bytes)648 728 80 12.3%

Parent/Child Regression/Improvement report for Drupal\Core\Asset\CssCollectionOptimizer::optimize [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\Asset\CssCollectionOptimizer::optimize0 N/A% 168 0.4% 196 0.5% 32 0.0% 4,216 0.3%
Exclusive Metrics Diff for Current Function11 6.5% 6 3.1% 0 0.0% 80 1.9%
Parent function
drupal_pre_render_styles0 N/A% 168 100.0% 196 100.0% 32 100.0% 4,216 100.0%
Child functions
file_exists0 N/A% 199 118.5% 199 101.5% 8 25.0% 576 13.7%
Drupal\Core\State\State::get0 N/A% -66 -39.3% -39 -19.9% 0 0.0% 640 15.2%
Drupal\Core\Asset\CssCollectionOptimizer::generateHash0 N/A% 20 11.9% 24 12.2% 8 25.0% 160 3.8%
Drupal\Core\Asset\CssCollectionGrouper::group0 N/A% 4 2.4% 6 3.1% 16 50.0% 2,760 65.5%