XHProf: Hierarchical Profiler Report

Diff Report: Run #52e4374042ace: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e436ce9c71d: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Drupal\Core\Field\FieldItemBase::__isset	Run #52e4374042ace	Run #52e436ce9c71d	Diff	Diff%
Number of Function Calls	41	41	0	0.0%
Incl. Wall Time (microsec)	305	290	-15	-4.9%
Incl. Wall Time (microsec) per call	7	7	-0	-4.9%
Excl. Wall Time (microsec)	93	91	-2	-2.2%
Incl. CPU (microsecs)	344	326	-18	-5.2%
Incl. CPU (microsecs) per call	8	8	-0	-5.2%
Excl. CPU (microsec)	113	109	-4	-3.5%
Incl. MemUse (bytes)	15,312	15,312	0	0.0%
Incl. MemUse (bytes) per call	373	373	0	0.0%
Excl. MemUse (bytes)	6,344	6,344	0	0.0%
Incl. PeakMemUse (bytes)	11,528	11,472	-56	-0.5%
Incl. PeakMemUse (bytes) per call	281	280	-1	-0.5%
Excl. PeakMemUse (bytes)	3,584	3,576	-8	-0.2%

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\Core\Field\FieldItemBase::__isset	0	N/A%	-15	-1.3%	-18	-1.8%	0	0.0%	-56	-0.1%
Exclusive Metrics Diff for Current Function			-2	-13.3%	-4	-22.2%	0	N/A%	-8	-14.3%
*Parent functions*
Drupal\Core\Field\FieldItemList::__isset	0	N/A%	-15	-100.0%	-20	-111.1%	0	N/A%	-56	-100.0%
template_preprocess_field	0	N/A%	0	0.0%	4	22.2%	0	N/A%	0	0.0%
Drupal\text\Plugin\Field\FieldWidget\TextfieldWidget::formElement	0	N/A%	0	0.0%	0	0.0%	0	N/A%	0	0.0%
Drupal\Core\Field\FormatterBase::view	0	N/A%	0	0.0%	0	0.0%	0	N/A%	0	0.0%
Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem::__isset	0	N/A%	0	0.0%	-2	-11.1%	0	N/A%	0	0.0%
*Child functions*
Drupal\Core\TypedData\DataReferenceBase::getValue	0	N/A%	-12	-80.0%	-13	-72.2%	0	N/A%	-48	-85.7%
Drupal\Core\Entity\Plugin\DataType\EntityReference::getValue	0	N/A%	-1	-6.7%	-1	-5.6%	0	N/A%	0	0.0%