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

Drupal\Core\Asset\CssCollectionOptimizer::optimizeRun #5391fc871e91dRun #5391fd5a43e70DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,721 1,658 -63 -3.7%
Incl. Wall Time (microsec) per call 1,721 1,658 -63 -3.7%
Excl. Wall Time (microsec)107 111 4 3.7%
Incl. CPU (microsecs)1,472 1,455 -17 -1.2%
Incl. CPU (microsecs) per call 1,472 1,455 -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)-33,740 -33,728 12 0.0%
Incl. PeakMemUse (bytes)31,512 30,972 -540 -1.7%
Incl. PeakMemUse (bytes) per call 31,512 30,972 -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 Function4 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%