Diff Report
Run #539205a48c548: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539206aca7ae8: 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 #539206aca7ae8DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,768 1,746 -22 -1.2%
Incl. Wall Time (microsec) per call 1,768 1,746 -22 -1.2%
Excl. Wall Time (microsec)110 111 1 0.9%
Incl. CPU (microsecs)1,510 1,518 8 0.5%
Incl. CPU (microsecs) per call 1,510 1,518 8 0.5%
Excl. CPU (microsec)102 94 -8 -7.8%
Incl. MemUse (bytes)15,924 15,928 4 0.0%
Incl. MemUse (bytes) per call 15,924 15,928 4 0.0%
Excl. MemUse (bytes)-34,520 -34,520 0 0.0%
Incl. PeakMemUse (bytes)24,220 21,200 -3,020 -12.5%
Incl. PeakMemUse (bytes) per call 24,220 21,200 -3,020 -12.5%
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% -22 -0.5% 8 0.2% 4 0.0% -3,020 -3.1%
Exclusive Metrics Diff for Current Function1 4.5% -8 -100.0% 0 0.0% 0 0.0%
Parent function
drupal_pre_render_styles0 N/A% -22 -100.0% 8 100.0% 4 100.0% -3,020 -100.0%
Child functions
Drupal\Core\State\State::get0 N/A% -18 -81.8% 12 150.0% 0 0.0% 0 0.0%
Drupal\Core\Asset\CssCollectionGrouper::group0 N/A% 16 72.7% 16 200.0% 0 0.0% -3,080 -102.0%
Drupal\Core\Asset\CssCollectionOptimizer::generateHash0 N/A% -16 -72.7% -11 -137.5% 0 0.0% 56 1.9%
file_exists0 N/A% -5 -22.7% -1 -12.5% 4 100.0% 4 0.1%