Diff Report
Run #55919d1190958: XHProf Run (Namespace=drupal-perf-lauriii)
vs.
Run #55919cdb0fed9: XHProf Run (Namespace=drupal-perf-lauriii)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #55919d1190958Run #55919cdb0fed9DiffDiff%
Number of Function Calls52 55 3 5.8%
Incl. Wall Time (microsec)4,020 4,619 599 14.9%
Incl. Wall Time (microsec) per call 77 84 7 8.6%
Excl. Wall Time (microsec)289 309 20 6.9%
Incl. MemUse (bytes)1,605,536 1,993,128 387,592 24.1%
Incl. MemUse (bytes) per call 30,876 36,239 5,363 17.4%
Excl. MemUse (bytes)-239,312 -318,552 -79,240 -33.1%
Incl. PeakMemUse (bytes)1,873,728 2,348,488 474,760 25.3%
Incl. PeakMemUse (bytes) per call 36,033 42,700 6,667 18.5%
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% 599 7.4% 387,592 45.1% 474,760 52.7%
Exclusive Metrics Diff for Current Function20 3.3% -79,240 -20.4% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple3 100.0% 599 100.0% 387,592 100.0% 474,760 100.0%
Child functions
unserialize3 33.3% 375 62.6% 465,312 120.1% 474,712 100.0%
Drupal\Core\Cache\DatabaseCacheTagsChecksum::isValid3 33.3% 202 33.7% 512 0.1% 16 0.0%
explode3 33.3% 2 0.3% 1,008 0.3% 32 0.0%