Diff Report
Run #55a8735248325: XHProf Run (Namespace=drupal-perf-lauriii)
vs.
Run #55a8732244c39: XHProf Run (Namespace=drupal-perf-lauriii)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #55a8735248325Run #55a8732244c39DiffDiff%
Number of Function Calls55 58 3 5.5%
Incl. Wall Time (microsec)4,487 5,060 573 12.8%
Incl. Wall Time (microsec) per call 82 87 6 6.9%
Excl. Wall Time (microsec)282 300 18 6.4%
Incl. MemUse (bytes)2,005,496 2,390,904 385,408 19.2%
Incl. MemUse (bytes) per call 36,464 41,222 4,759 13.1%
Excl. MemUse (bytes)-244,656 -323,184 -78,528 -32.1%
Incl. PeakMemUse (bytes)2,528,616 2,999,168 470,552 18.6%
Incl. PeakMemUse (bytes) per call 45,975 51,710 5,735 12.5%
Excl. PeakMemUse (bytes)480 480 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::prepareItem3 25.0% 573 9.3% 385,408 37.5% 470,552 44.8%
Exclusive Metrics Diff for Current Function18 3.1% -78,528 -20.4% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple3 100.0% 573 100.0% 385,408 100.0% 470,552 100.0%
Child functions
unserialize3 33.3% 413 72.1% 462,416 120.0% 464,976 98.8%
Drupal\Core\Cache\DatabaseCacheTagsChecksum::isValid3 33.3% 141 24.6% 512 0.1% 5,576 1.2%
explode3 33.3% 1 0.2% 1,008 0.3% 0 0.0%