Diff Report
Run #53923d861ff11: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #53923e49d2b58: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Asset\CssCollectionOptimizer::optimize

Drupal\Core\Asset\CssCollectionOptimizer::optimizeRun #53923d861ff11Run #53923e49d2b58DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)2,000 1,964 -36 -1.8%
Incl. Wall Time (microsec) per call 2,000 1,964 -36 -1.8%
Excl. Wall Time (microsec)132 134 2 1.5%
Incl. CPU (microsecs)1,719 1,754 35 2.0%
Incl. CPU (microsecs) per call 1,719 1,754 35 2.0%
Excl. CPU (microsec)114 119 5 4.4%
Incl. MemUse (bytes)16,624 16,624 0 0.0%
Incl. MemUse (bytes) per call 16,624 16,624 0 0.0%
Excl. MemUse (bytes)-30,284 -30,284 0 0.0%
Incl. PeakMemUse (bytes)22,404 22,340 -64 -0.3%
Incl. PeakMemUse (bytes) per call 22,404 22,340 -64 -0.3%
Excl. PeakMemUse (bytes)336 336 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% -36 -2.3% 35 3.2% 0 0.0% -64 -9.2%
Exclusive Metrics Diff for Current Function2 5.6% 5 14.3% 0 N/A% 0 0.0%
Parent function
drupal_pre_render_styles0 N/A% -36 -100.0% 35 100.0% 0 N/A% -64 -100.0%
Child functions
Drupal\Core\State\State::get0 N/A% -70 -194.4% 0 0.0% 0 N/A% -64 -100.0%
Drupal\Core\Asset\CssCollectionGrouper::group0 N/A% 16 44.4% 16 45.7% 0 N/A% 0 0.0%
file_exists0 N/A% 13 36.1% 14 40.0% 0 N/A% 0 0.0%
Drupal\Core\Asset\CssCollectionOptimizer::generateHash0 N/A% 3 8.3% 0 0.0% 0 N/A% 0 0.0%