Diff Report
Run #539206aca7ae8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539205a48c548: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Asset\CssCollectionOptimizer::optimize

Drupal\Core\Asset\CssCollectionOptimizer::optimizeRun #539206aca7ae8Run #539205a48c548DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,746 1,768 22 1.3%
Incl. Wall Time (microsec) per call 1,746 1,768 22 1.3%
Excl. Wall Time (microsec)111 110 -1 -0.9%
Incl. CPU (microsecs)1,518 1,510 -8 -0.5%
Incl. CPU (microsecs) per call 1,518 1,510 -8 -0.5%
Excl. CPU (microsec)94 102 8 8.5%
Incl. MemUse (bytes)15,928 15,924 -4 -0.0%
Incl. MemUse (bytes) per call 15,928 15,924 -4 -0.0%
Excl. MemUse (bytes)-34,520 -34,520 0 0.0%
Incl. PeakMemUse (bytes)21,200 24,220 3,020 14.2%
Incl. PeakMemUse (bytes) per call 21,200 24,220 3,020 14.2%
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 Function-1 -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%