Diff Report
Run #5392041970f3f: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539201f8938f4: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Asset\CssCollectionOptimizer::optimize

Drupal\Core\Asset\CssCollectionOptimizer::optimizeRun #5392041970f3fRun #539201f8938f4DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)2,029 1,849 -180 -8.9%
Incl. Wall Time (microsec) per call 2,029 1,849 -180 -8.9%
Excl. Wall Time (microsec)127 125 -2 -1.6%
Incl. CPU (microsecs)1,721 1,665 -56 -3.3%
Incl. CPU (microsecs) per call 1,721 1,665 -56 -3.3%
Excl. CPU (microsec)111 106 -5 -4.5%
Incl. MemUse (bytes)16,724 16,724 0 0.0%
Incl. MemUse (bytes) per call 16,724 16,724 0 0.0%
Excl. MemUse (bytes)-25,956 -25,956 0 0.0%
Incl. PeakMemUse (bytes)21,772 21,796 24 0.1%
Incl. PeakMemUse (bytes) per call 21,772 21,796 24 0.1%
Excl. PeakMemUse (bytes)408 408 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% -180 -12.3% -56 -2.1% 0 0.0% 24 0.0%
Exclusive Metrics Diff for Current Function-2 -1.1% -5 -8.9% 0 N/A% 0 0.0%
Parent function
drupal_pre_render_styles0 N/A% -180 -100.0% -56 -100.0% 0 N/A% 24 100.0%
Child functions
Drupal\Core\State\State::get0 N/A% -128 -71.1% -1 -1.8% 0 N/A% 28 116.7%
file_exists0 N/A% -18 -10.0% -18 -32.1% 0 N/A% -4 -16.7%
Drupal\Core\Asset\CssCollectionOptimizer::generateHash0 N/A% -16 -8.9% -17 -30.4% 0 N/A% 0 0.0%
Drupal\Core\Asset\CssCollectionGrouper::group0 N/A% -16 -8.9% -15 -26.8% 0 N/A% 0 0.0%