Diff Report
Run #5589b704ad974: XHProf Run (Namespace=drupal-perf-stefanr)
vs.
Run #5589b6f75b296: XHProf Run (Namespace=drupal-perf-stefanr)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5589b704ad974Run #5589b6f75b296DiffDiff%
Number of Function Calls10,900 10,900 0 0.0%
Incl. Wall Time (microsec)3,812,189 3,888,830 76,641 2.0%
Incl. Wall Time (microsec) per call 350 357 7 2.0%
Excl. Wall Time (microsec)151,505 159,781 8,276 5.5%
Incl. MemUse (bytes)405,069,600 404,673,600 -396,000 -0.1%
Incl. MemUse (bytes) per call 37,162 37,126 -36 -0.1%
Excl. MemUse (bytes)-44,815,200 -44,780,800 34,400 0.1%
Incl. PeakMemUse (bytes)508,612,800 504,844,800 -3,768,000 -0.7%
Incl. PeakMemUse (bytes) per call 46,662 46,316 -346 -0.7%
Excl. PeakMemUse (bytes)91,200 91,200 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% 76,641 3.9% -396,000 -6.6% -3,768,000 -62.9%
Exclusive Metrics Diff for Current Function8,276 10.8% 34,400 8.7% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 76,641 100.0% -396,000 -100.0% -3,768,000 -100.0%
Child functions
unserialize0 N/A% 49,965 65.2% -428,000 -108.1% -3,692,800 -98.0%
Drupal\Core\Cache\DatabaseCacheTagsChecksum::isValid0 N/A% 18,102 23.6% 0 0.0% -70,400 -1.9%
explode0 N/A% 298 0.4% -2,400 -0.6% -4,800 -0.1%