Diff Report
Run #5391fd5a43e70: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #5391fc871e91d: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Asset\CssCollectionOptimizer::optimize

Drupal\Core\Asset\CssCollectionOptimizer::optimizeRun #5391fd5a43e70Run #5391fc871e91dDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,658 1,721 63 3.8%
Incl. Wall Time (microsec) per call 1,658 1,721 63 3.8%
Excl. Wall Time (microsec)111 107 -4 -3.6%
Incl. CPU (microsecs)1,455 1,472 17 1.2%
Incl. CPU (microsecs) per call 1,455 1,472 17 1.2%
Excl. CPU (microsec)97 97 0 0.0%
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)-33,728 -33,740 -12 -0.0%
Incl. PeakMemUse (bytes)30,972 31,512 540 1.7%
Incl. PeakMemUse (bytes) per call 30,972 31,512 540 1.7%
Excl. PeakMemUse (bytes)260 260 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% 63 3.8% 17 4.2% 0 0.0% 540 2.2%
Exclusive Metrics Diff for Current Function-4 -6.3% 0 0.0% -12 N/A% 0 0.0%
Parent function
drupal_pre_render_styles0 N/A% 63 100.0% 17 100.0% 0 N/A% 540 100.0%
Child functions
Drupal\Core\State\State::get0 N/A% 71 112.7% 25 147.1% 0 N/A% 0 0.0%
file_exists0 N/A% -7 -11.1% -8 -47.1% 0 N/A% 0 0.0%
Drupal\Core\Asset\CssCollectionOptimizer::generateHash0 N/A% 4 6.3% 1 5.9% 0 N/A% 528 97.8%
Drupal\Core\Asset\CssCollectionGrouper::group0 N/A% -1 -1.6% -1 -5.9% 12 N/A% 12 2.2%