Diff Report
Run #550de112c2927: XHProf Run (Namespace=drupal-perf-davidhernandez)
vs.
Run #550de0b43acdf: XHProf Run (Namespace=drupal-perf-davidhernandez)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #550de112c2927Run #550de0b43acdfDiffDiff%
Number of Function Calls17 17 0 0.0%
Incl. Wall Time (microsec)2,562 2,786 224 8.7%
Incl. Wall Time (microsec) per call 151 164 13 8.7%
Excl. Wall Time (microsec)205 226 21 10.2%
Incl. MemUse (bytes)232,192 247,496 15,304 6.6%
Incl. MemUse (bytes) per call 13,658 14,559 900 6.6%
Excl. MemUse (bytes)-27,264 -30,240 -2,976 -10.9%
Incl. PeakMemUse (bytes)203,208 221,344 18,136 8.9%
Incl. PeakMemUse (bytes) per call 11,953 13,020 1,067 8.9%
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::prepareItem0 N/A% 224 1.9% 15,304 363.0% 18,136 539.8%
Exclusive Metrics Diff for Current Function21 9.4% -2,976 -19.4% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 224 100.0% 15,304 100.0% 18,136 100.0%
Child functions
unserialize0 N/A% 121 54.0% 18,280 119.4% 18,136 100.0%
Drupal\Core\Cache\DatabaseCacheTagsChecksum::isValid0 N/A% 81 36.2% 0 0.0% 0 0.0%
explode0 N/A% 1 0.4% 0 0.0% 0 0.0%