Diff Report
Run #539fd0a78f1b7: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #539fd2109980d: 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 #539fd2109980dDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,029 1,373 344 33.4%
Incl. Wall Time (microsec) per call 1,029 1,373 344 33.4%
Excl. Wall Time (microsec)68 101 33 48.5%
Incl. CPU (microsecs)968 1,322 354 36.6%
Incl. CPU (microsecs) per call 968 1,322 354 36.6%
Excl. CPU (microsec)61 91 30 49.2%
Incl. MemUse (bytes)24,688 24,688 0 0.0%
Incl. MemUse (bytes) per call 24,688 24,688 0 0.0%
Excl. MemUse (bytes)-12,368 -12,368 0 0.0%
Incl. PeakMemUse (bytes)19,200 19,200 0 0.0%
Incl. PeakMemUse (bytes) per call 19,200 19,200 0 0.0%
Excl. PeakMemUse (bytes)648 648 0 0.0%

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% 344 5.1% 354 5.7% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function33 9.6% 30 8.5% 0 N/A% 0 N/A%
Parent function
drupal_pre_render_styles0 N/A% 344 100.0% 354 100.0% 0 N/A% 0 N/A%
Child functions
file_exists0 N/A% 279 81.1% 279 78.8% 0 N/A% 0 N/A%
Drupal\Core\Asset\CssCollectionOptimizer::generateHash0 N/A% 31 9.0% 35 9.9% 0 N/A% 0 N/A%
Drupal\Core\State\State::get0 N/A% 5 1.5% 14 4.0% 0 N/A% 0 N/A%
Drupal\Core\Asset\CssCollectionGrouper::group0 N/A% -4 -1.2% -4 -1.1% 0 N/A% 0 N/A%