Diff Report
Run #539205a48c548: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539206513e72e: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Asset\CssCollectionOptimizer::optimize

Drupal\Core\Asset\CssCollectionOptimizer::optimizeRun #539205a48c548Run #539206513e72eDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,768 1,803 35 2.0%
Incl. Wall Time (microsec) per call 1,768 1,803 35 2.0%
Excl. Wall Time (microsec)110 116 6 5.5%
Incl. CPU (microsecs)1,510 1,547 37 2.5%
Incl. CPU (microsecs) per call 1,510 1,547 37 2.5%
Excl. CPU (microsec)102 100 -2 -2.0%
Incl. MemUse (bytes)15,924 15,924 0 0.0%
Incl. MemUse (bytes) per call 15,924 15,924 0 0.0%
Excl. MemUse (bytes)-34,520 -34,520 0 0.0%
Incl. PeakMemUse (bytes)24,220 24,220 0 0.0%
Incl. PeakMemUse (bytes) per call 24,220 24,220 0 0.0%
Excl. PeakMemUse (bytes)128 128 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% 35 3.8% 37 10.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function6 17.1% -2 -5.4% 0 N/A% 0 N/A%
Parent function
drupal_pre_render_styles0 N/A% 35 100.0% 37 100.0% 0 N/A% 0 N/A%
Child functions
file_exists0 N/A% 39 111.4% 42 113.5% 0 N/A% 0 N/A%
Drupal\Core\State\State::get0 N/A% -9 -25.7% -6 -16.2% 0 N/A% 0 N/A%
Drupal\Core\Asset\CssCollectionGrouper::group0 N/A% -1 -2.9% -1 -2.7% 0 N/A% 0 N/A%
Drupal\Core\Asset\CssCollectionOptimizer::generateHash0 N/A% 0 0.0% 4 10.8% 0 N/A% 0 N/A%