Diff Report
Run #53920b950c201: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #53920c043e98b: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Asset\CssCollectionOptimizer::optimize

Drupal\Core\Asset\CssCollectionOptimizer::optimizeRun #53920b950c201Run #53920c043e98bDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)2,093 2,068 -25 -1.2%
Incl. Wall Time (microsec) per call 2,093 2,068 -25 -1.2%
Excl. Wall Time (microsec)131 131 0 0.0%
Incl. CPU (microsecs)1,765 1,837 72 4.1%
Incl. CPU (microsecs) per call 1,765 1,837 72 4.1%
Excl. CPU (microsec)111 116 5 4.5%
Incl. MemUse (bytes)17,936 17,936 0 0.0%
Incl. MemUse (bytes) per call 17,936 17,936 0 0.0%
Excl. MemUse (bytes)-26,824 -26,824 0 0.0%
Incl. PeakMemUse (bytes)28,680 28,700 20 0.1%
Incl. PeakMemUse (bytes) per call 28,680 28,700 20 0.1%
Excl. PeakMemUse (bytes)336 336 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% -25 -7.0% 72 38.5% 0 0.0% 20 0.2%
Exclusive Metrics Diff for Current Function0 0.0% 5 6.9% 0 N/A% 0 0.0%
Parent function
drupal_pre_render_styles0 N/A% -25 -100.0% 72 100.0% 0 N/A% 20 100.0%
Child functions
Drupal\Core\State\State::get0 N/A% -96 -384.0% 1 1.4% 0 N/A% 0 0.0%
file_exists0 N/A% 82 328.0% 78 108.3% 0 N/A% 20 100.0%
Drupal\Core\Asset\CssCollectionGrouper::group0 N/A% -15 -60.0% -15 -20.8% 0 N/A% 0 0.0%
Drupal\Core\Asset\CssCollectionOptimizer::generateHash0 N/A% 4 16.0% 3 4.2% 0 N/A% 0 0.0%