XHProf: Hierarchical Profiler Report

Diff Report: Run #518fbd1297c93: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518fb7370421e: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

book_export_html	Run #518fbd1297c93	Run #518fb7370421e	Diff	Diff%
Number of Function Calls	1	1	0	0.0%
Incl. Wall Time (microsec)	109,714	107,997	-1,717	-1.6%
Incl. Wall Time (microsec) per call	109,714	107,997	-1,717	-1.6%
Excl. Wall Time (microsec)	40	35	-5	-12.5%
Incl. CPU (microsecs)	94,027	90,900	-3,127	-3.3%
Incl. CPU (microsecs) per call	94,027	90,900	-3,127	-3.3%
Excl. CPU (microsec)	31	26	-5	-16.1%
Incl. MemUse (bytes)	2,609,992	2,185,480	-424,512	-16.3%
Incl. MemUse (bytes) per call	2,609,992	2,185,480	-424,512	-16.3%
Excl. MemUse (bytes)	-14,048	-14,024	24	0.2%
Incl. PeakMemUse (bytes)	2,689,992	2,286,272	-403,720	-15.0%
Incl. PeakMemUse (bytes) per call	2,689,992	2,286,272	-403,720	-15.0%
Excl. PeakMemUse (bytes)	800	800	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*
book_export_html	0	N/A%	-1,717	-54.5%	-3,127	-72.4%	-424,512	-98.9%	-403,720	-94.7%
Exclusive Metrics Diff for Current Function			-5	-0.3%	-5	-0.2%	24	0.0%	0	0.0%
*Parent function*
call_user_func	0	N/A%	-1,717	-100.0%	-3,127	-100.0%	-424,512	-100.0%	-403,720	-100.0%
*Child functions*
book_export_traverse	0	N/A%	-1,415	-82.4%	-2,578	-82.4%	-376,352	-88.7%	-355,088	-88.0%
theme	0	N/A%	-650	-37.9%	-651	-20.8%	-48,184	-11.4%	-48,632	-12.0%
book_menu_subtree_data	0	N/A%	406	23.6%	159	5.1%	0	0.0%	0	0.0%
Drupal\Core\Entity\EntityBCDecorator::__isset	0	N/A%	-50	-2.9%	-51	-1.6%	0	0.0%	0	0.0%
user_access	0	N/A%	-4	-0.2%	-3	-0.1%	0	0.0%	0	0.0%
Drupal\Core\Entity\EntityBCDecorator::__get	0	N/A%	1	0.1%	2	0.1%	0	0.0%	0	0.0%
Drupal\Core\Entity\EntityBCDecorator::label	0	N/A%	0	0.0%	0	0.0%	0	0.0%	0	0.0%