XHProf: Hierarchical Profiler Report

Diff Report: Run #52e49b394aea8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e49acfb0eb8: 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 #52e49b394aea8	Run #52e49acfb0eb8	Diff	Diff%
Number of Function Calls	39	38	-1	-2.6%
Incl. Wall Time (microsec)	18,059	17,815	-244	-1.4%
Incl. Wall Time (microsec) per call	463	469	6	1.2%
Excl. Wall Time (microsec)	265	268	3	1.1%
Incl. CPU (microsecs)	12,581	12,410	-171	-1.4%
Incl. CPU (microsecs) per call	323	327	4	1.2%
Excl. CPU (microsec)	234	221	-13	-5.6%
Incl. MemUse (bytes)	1,613,888	1,611,000	-2,888	-0.2%
Incl. MemUse (bytes) per call	41,382	42,395	1,013	2.4%
Excl. MemUse (bytes)	7,696	7,912	216	2.8%
Incl. PeakMemUse (bytes)	2,099,936	2,100,272	336	0.0%
Incl. PeakMemUse (bytes) per call	53,845	55,270	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%