Diff Report
Run #54dec59a01be2: XHProf Run (Namespace=drupal-perf-davidhernandez)
vs.
Run #54dec6fc087bf: XHProf Run (Namespace=drupal-perf-davidhernandez)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #54dec59a01be2Run #54dec6fc087bfDiffDiff%
Number of Function Calls228 229 1 0.4%
Incl. Wall Time (microsec)13,396 13,651 255 1.9%
Incl. Wall Time (microsec) per call 59 60 1 1.5%
Excl. Wall Time (microsec)1,857 1,877 20 1.1%
Incl. MemUse (bytes)1,873,896 1,874,040 144 0.0%
Incl. MemUse (bytes) per call 8,219 8,184 -35 -0.4%
Excl. MemUse (bytes)-909,592 -909,496 96 0.0%
Incl. PeakMemUse (bytes)2,909,464 2,909,472 8 0.0%
Incl. PeakMemUse (bytes) per call 12,761 12,705 -56 -0.4%
Excl. PeakMemUse (bytes)680 680 0 0.0%

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.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
Drupal\Core\Cache\DatabaseBackend::prepareItem1 33.3% 255 0.5% 144 0.0% 8 0.0%
Exclusive Metrics Diff for Current Function20 7.8% 96 66.7% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple1 100.0% 255 100.0% 144 100.0% 8 100.0%
Child functions
unserialize1 50.0% 149 58.4% -48 -33.3% 80 1000.0%
Drupal\Core\Cache\DatabaseCacheTagsChecksum::isValid1 50.0% 72 28.2% 48 33.3% -72 -900.0%
explode0 0.0% 14 5.5% 48 33.3% 0 0.0%