XHProf: Hierarchical Profiler Report

Diff Report: Run #52e49acfb0eb8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e49b394aea8: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

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

Drupal\Core\Cache\DatabaseBackend::get	Run #52e49acfb0eb8	Run #52e49b394aea8	Diff	Diff%
Number of Function Calls	38	39	1	2.6%
Incl. Wall Time (microsec)	17,815	18,059	244	1.4%
Incl. Wall Time (microsec) per call	469	463	-6	-1.2%
Excl. Wall Time (microsec)	268	265	-3	-1.1%
Incl. CPU (microsecs)	12,410	12,581	171	1.4%
Incl. CPU (microsecs) per call	327	323	-4	-1.2%
Excl. CPU (microsec)	221	234	13	5.9%
Incl. MemUse (bytes)	1,611,000	1,613,888	2,888	0.2%
Incl. MemUse (bytes) per call	42,395	41,382	-1,013	-2.4%
Excl. MemUse (bytes)	7,912	7,696	-216	-2.7%
Incl. PeakMemUse (bytes)	2,100,272	2,099,936	-336	-0.0%
Incl. PeakMemUse (bytes) per call	55,270	53,845	-1,426	-2.6%
Excl. PeakMemUse (bytes)	3,992	3,992	0	0.0%

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	1	33.3%	244	22.0%	171	21.0%	2,888	11.2%	-336	-1.3%
Exclusive Metrics Diff for Current Function			-3	-1.2%	13	7.6%	-216	-7.5%	0	0.0%
*Parent functions*
Drupal\Core\Template\TwigEnvironment::needsUpdate	1	100.0%	282	115.6%	150	87.7%	2,000	69.3%	624	185.7%
menu_tree_page_data	0	0.0%	-81	-33.2%	-61	-35.7%	0	0.0%	-40	-11.9%
_menu_build_tree	0	0.0%	57	23.4%	69	40.4%	8	0.3%	-1,384	-411.9%
Drupal\Core\Config\CachedStorage::read	0	0.0%	-49	-20.1%	-32	-18.7%	0	0.0%	-64	-19.0%
Drupal\Core\Config\CachedStorage::findByPrefix	0	0.0%	-44	-18.0%	-15	-8.8%	0	0.0%	0	0.0%
Drupal\Core\CacheDecorator\AliasManagerCacheDecorator::getSystemPath	0	0.0%	33	13.5%	35	20.5%	0	0.0%	-200	-59.5%
Drupal\Core\Entity\EntityManager::getFieldDefinitions	0	0.0%	20	8.2%	15	8.8%	-8	-0.3%	48	14.3%
Drupal\field\FieldInfo::getBundleInstances	0	0.0%	16	6.6%	15	8.8%	-32	-1.1%	-32	-9.5%
Drupal\Core\Plugin\DefaultPluginManager::getCachedDefinitions	0	0.0%	13	5.3%	3	1.8%	8	0.3%	-48	-14.3%
Drupal\Core\Plugin\Discovery\CacheDecorator::getCachedDefinitions	0	0.0%	-10	-4.1%	-8	-4.7%	24	0.8%	24	7.1%
Drupal\Core\Menu\LocalTaskManager::getLocalTasksForRoute	0	0.0%	6	2.5%	6	3.5%	0	0.0%	48	14.3%
Drupal\Core\Cache\CacheCollector::lazyLoadCache	0	0.0%	5	2.0%	3	1.8%	0	0.0%	0	0.0%
Drupal\field\FieldInfo::getBundleExtraFields	0	0.0%	-5	-2.0%	-8	-4.7%	0	0.0%	0	0.0%
system_list	0	0.0%	4	1.6%	2	1.2%	0	0.0%	0	0.0%
Drupal\Core\Extension\CachedModuleHandler::getCachedImplementationInfo	0	0.0%	-3	-1.2%	-3	-1.8%	0	0.0%	56	16.7%
variable_initialize	0	0.0%	1	0.4%	-1	-0.6%	0	0.0%	0	0.0%
Drupal\Core\Utility\ThemeRegistry::__construct	0	0.0%	-1	-0.4%	1	0.6%	888	30.7%	632	188.1%
*Child functions*
Drupal\Core\Cache\DatabaseBackend::getMultiple	1	50.0%	242	99.2%	161	94.2%	3,104	107.5%	-336	-100.0%
reset	1	50.0%	5	2.0%	-3	-1.8%	0	0.0%	0	0.0%