XHProf: Hierarchical Profiler Report

Diff Report: Run #51ec3c5ab9ae4: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec3b81ad265: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Drupal\Core\Session\UserSession::hasPermission	Run #51ec3c5ab9ae4	Run #51ec3b81ad265	Diff	Diff%
Number of Function Calls	59	59	0	0.0%
Incl. Wall Time (microsec)	12,297	12,140	-157	-1.3%
Incl. Wall Time (microsec) per call	208	206	-3	-1.3%
Excl. Wall Time (microsec)	799	780	-19	-2.4%
Incl. CPU (microsecs)	12,031	11,850	-181	-1.5%
Incl. CPU (microsecs) per call	204	201	-3	-1.5%
Excl. CPU (microsec)	599	578	-21	-3.5%
Incl. MemUse (bytes)	617,560	617,576	16	0.0%
Incl. MemUse (bytes) per call	10,467	10,467	0	0.0%
Excl. MemUse (bytes)	-27,496	-27,496	0	0.0%
Incl. PeakMemUse (bytes)	642,288	642,304	16	0.0%
Incl. PeakMemUse (bytes) per call	10,886	10,887	0	0.0%
Excl. PeakMemUse (bytes)	2,352	2,352	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\Core\Session\UserSession::hasPermission	0	N/A%	-157	-42.0%	-181	-17.1%	16	0.0%	16	0.0%
Exclusive Metrics Diff for Current Function			-19	-12.1%	-21	-11.6%	0	0.0%	0	0.0%
*Parent function*
user_access	0	N/A%	-157	-100.0%	-181	-100.0%	16	100.0%	16	100.0%
*Child functions*
Drupal\Core\Config\Entity\ConfigStorageController::loadMultiple	0	N/A%	-111	-70.7%	-132	-72.9%	16	100.0%	16	100.0%
Drupal\Core\Entity\EntityManager::getStorageController	0	N/A%	-26	-16.6%	-15	-8.3%	0	0.0%	0	0.0%
Drupal::entityManager	0	N/A%	-6	-3.8%	-9	-5.0%	0	0.0%	0	0.0%
Drupal\Core\Session\UserSession::getRoles	0	N/A%	5	3.2%	2	1.1%	0	0.0%	0	0.0%
Drupal\user\Plugin\Core\Entity\Role::hasPermission	0	N/A%	-1	-0.6%	-5	-2.8%	0	0.0%	0	0.0%
Drupal\Core\Session\UserSession::id	0	N/A%	1	0.6%	-1	-0.6%	0	0.0%	0	0.0%