XHProf: Hierarchical Profiler Report

Diff Report: Run #52d3e812c7cf2: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52d3e85377bba: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::get

Drupal\Core\Cache\DatabaseBackend::get	Run #52d3e812c7cf2	Run #52d3e85377bba	Diff	Diff%
Number of Function Calls	41	39	-2	-4.9%
Incl. Wall Time (microsec)	16,336	16,006	-330	-2.0%
Incl. Wall Time (microsec) per call	398	410	12	3.0%
Excl. Wall Time (microsec)	274	240	-34	-12.4%
Incl. CPU (microsecs)	11,702	11,419	-283	-2.4%
Incl. CPU (microsecs) per call	285	293	7	2.6%
Excl. CPU (microsec)	236	206	-30	-12.7%
Incl. MemUse (bytes)	1,637,008	1,625,816	-11,192	-0.7%
Incl. MemUse (bytes) per call	39,927	41,688	1,761	4.4%
Excl. MemUse (bytes)	7,440	7,808	368	4.9%
Incl. PeakMemUse (bytes)	2,079,680	2,031,448	-48,232	-2.3%
Incl. PeakMemUse (bytes) per call	50,724	52,088	1,365	2.7%
Excl. PeakMemUse (bytes)	4,592	4,240	-352	-7.7%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::get [View Callgraph Diff]

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\Cache\DatabaseBackend::get	-2	-33.3%	-330	-19.6%	-283	-17.5%	-11,192	-9.4%	-48,232	-40.3%
Exclusive Metrics Diff for Current Function			-34	-10.3%	-30	-10.6%	368	3.3%	-352	-0.7%
*Parent functions*
Drupal\Core\Template\TwigEnvironment::needsUpdate	-2	-100.0%	-470	-142.4%	-314	-111.0%	-3,936	-35.2%	-24,952	-51.7%
Drupal\Core\Menu\LocalTaskManager::getLocalTasksForRoute	0	0.0%	52	15.8%	45	15.9%	0	0.0%	-184	-0.4%
Drupal\Core\Extension\CachedModuleHandler::getCachedImplementationInfo	0	0.0%	48	14.5%	21	7.4%	-2,264	-20.2%	-2,328	-4.8%
Drupal\Core\Entity\EntityManager::getFieldDefinitions	0	0.0%	33	10.0%	23	8.1%	0	0.0%	64	0.1%
Drupal\Core\Config\CachedStorage::read	0	0.0%	-32	-9.7%	-16	-5.7%	0	0.0%	0	0.0%
Drupal\Core\Plugin\DefaultPluginManager::getCachedDefinitions	0	0.0%	32	9.7%	-11	-3.9%	16	0.1%	-15,256	-31.6%
system_list	0	0.0%	30	9.1%	10	3.5%	0	0.0%	0	0.0%
Drupal\Core\Cache\CacheCollector::lazyLoadCache	0	0.0%	25	7.6%	25	8.8%	0	0.0%	-64	-0.1%
variable_initialize	0	0.0%	-14	-4.2%	-4	-1.4%	-24	-0.2%	0	0.0%
Drupal\Core\Plugin\Discovery\CacheDecorator::getCachedDefinitions	0	0.0%	-12	-3.6%	-28	-9.9%	-16	-0.1%	-16	-0.0%
_menu_build_tree	0	0.0%	-9	-2.7%	-13	-4.6%	0	0.0%	0	0.0%
Drupal\field\FieldInfo::getFieldMap	0	0.0%	-5	-1.5%	-2	-0.7%	0	0.0%	0	0.0%
Drupal\Core\Utility\ThemeRegistry::__construct	0	0.0%	-5	-1.5%	-5	-1.8%	-4,960	-44.3%	-5,688	-11.8%
menu_tree_page_data	0	0.0%	-2	-0.6%	-4	-1.4%	-8	-0.1%	256	0.5%
Drupal\Core\Utility\CacheArray::__construct	0	0.0%	-1	-0.3%	-2	-0.7%	0	0.0%	-72	-0.1%
Drupal\field\FieldInfo::getBundleInstances	0	0.0%	1	0.3%	1	0.4%	0	0.0%	-64	-0.1%
Drupal\Core\Config\CachedStorage::findByPrefix	0	0.0%	-1	-0.3%	-9	-3.2%	0	0.0%	72	0.1%
*Child functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	-2	-50.0%	-300	-90.9%	-254	-89.8%	-11,560	-103.3%	-47,880	-99.3%
reset	-2	-50.0%	4	1.2%	1	0.4%	0	0.0%	0	0.0%