XHProf: Hierarchical Profiler Report

Diff Report: Run #51ec491641923: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec485525502: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

drupal_clean_css_identifier	Run #51ec491641923	Run #51ec485525502	Diff	Diff%
Number of Function Calls	44	44	0	0.0%
Incl. Wall Time (microsec)	966	919	-47	-4.9%
Incl. Wall Time (microsec) per call	22	21	-1	-4.9%
Excl. Wall Time (microsec)	308	299	-9	-2.9%
Incl. CPU (microsecs)	1,000	958	-42	-4.2%
Incl. CPU (microsecs) per call	23	22	-1	-4.2%
Excl. CPU (microsec)	273	274	1	0.4%
Incl. MemUse (bytes)	10,912	11,008	96	0.9%
Incl. MemUse (bytes) per call	248	250	2	0.9%
Excl. MemUse (bytes)	872	944	72	8.3%
Incl. PeakMemUse (bytes)	413,680	489,024	75,344	18.2%
Incl. PeakMemUse (bytes) per call	9,402	11,114	1,712	18.2%
Excl. PeakMemUse (bytes)	1,280	1,280	0	0.0%

Function Name	Calls Diff	Calls 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_clean_css_identifier	0	N/A%	-47	-3.0%	-42	-2.4%	96	0.1%	75,344	56.3%
Exclusive Metrics Diff for Current Function			-9	-19.1%	1	2.4%	72	75.0%	0	0.0%
*Parent functions*
drupal_html_class	0	N/A%	-24	-51.1%	-19	-45.2%	-24	-25.0%	75,704	100.5%
template_preprocess_views_view_fields	0	N/A%	-15	-31.9%	-12	-28.6%	0	0.0%	-360	-0.5%
template_preprocess_views_view	0	N/A%	-6	-12.8%	-7	-16.7%	0	0.0%	0	0.0%
Drupal\views\Plugin\views\field\FieldPluginBase::elementWrapperClasses	0	N/A%	-2	-4.3%	0	0.0%	0	0.0%	0	0.0%
Drupal\views\Plugin\views\style\StylePluginBase::getRowClass	0	N/A%	1	2.1%	-2	-4.8%	120	125.0%	0	0.0%
Drupal\views\Plugin\views\field\FieldPluginBase::elementClasses	0	N/A%	-1	-2.1%	-2	-4.8%	0	0.0%	0	0.0%
*Child functions*
strtr	0	N/A%	-43	-91.5%	-38	-90.5%	0	0.0%	75,344	100.0%
preg_replace	0	N/A%	5	10.6%	-5	-11.9%	24	25.0%	0	0.0%