Diff Report
Run #538ce4363dd76: XHProf Run (Namespace=drupal-perf-steinmb)
vs.
Run #538ce49a96f74: XHProf Run (Namespace=drupal-perf-steinmb)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #538ce4363dd76Run #538ce49a96f74DiffDiff%
Number of Function Calls50 51 1 2.0%
Incl. Wall Time (microsec)11,712 12,298 586 5.0%
Incl. Wall Time (microsec) per call 234 241 7 2.9%
Excl. Wall Time (microsec)4,075 4,323 248 6.1%
Incl. CPU (microsecs)9,763 10,255 492 5.0%
Incl. CPU (microsecs) per call 195 201 6 3.0%
Excl. CPU (microsec)4,059 4,309 250 6.2%
Incl. MemUse (bytes)1,692,712 1,693,080 368 0.0%
Incl. MemUse (bytes) per call 33,854 33,198 -657 -1.9%
Excl. MemUse (bytes)1,292,520 1,292,392 -128 -0.0%
Incl. PeakMemUse (bytes)1,900,432 1,901,376 944 0.0%
Incl. PeakMemUse (bytes) per call 38,009 37,282 -727 -1.9%
Excl. PeakMemUse (bytes)1,499,848 1,501,840 1,992 0.1%

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


Function NameCalls DiffCalls
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::prepareItem1 50.0% 586 30.3% 492 25.2% 368 1.9% 944 4.8%
Exclusive Metrics Diff for Current Function248 42.3% 250 50.8% -128 -34.8% 1,992 211.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple1 100.0% 586 100.0% 492 100.0% 368 100.0% 944 100.0%
Child functions
Drupal\field\Entity\FieldInstanceConfig::__wakeup0 0.0% 308 52.6% 315 64.0% 0 0.0% 0 0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags1 100.0% 203 34.6% 105 21.3% 488 132.6% -1,056 -111.9%
Composer\Autoload\ClassLoader::loadClass0 0.0% -178 -30.4% -180 -36.6% 8 2.2% 8 0.8%
Drupal\Core\Extension\Extension::unserialize0 0.0% 3 0.5% 2 0.4% 0 0.0% 0 0.0%
Drupal\Core\DependencyInjection\DependencySerialization::__wakeup0 0.0% 2 0.3% 0 0.0% 0 0.0% 0 0.0%
Symfony\Component\Routing\Route::unserialize0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%