Diff Report
Run #54e199664caef: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #54e1a23013a4f: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #54e199664caefRun #54e1a23013a4fDiffDiff%
Number of Function Calls88 88 0 0.0%
Incl. Wall Time (microsec)8,546 9,937 1,391 16.3%
Incl. Wall Time (microsec) per call 97 113 16 16.3%
Excl. Wall Time (microsec)940 1,030 90 9.6%
Incl. MemUse (bytes)1,452,496 1,452,168 -328 -0.0%
Incl. MemUse (bytes) per call 16,506 16,502 -4 -0.0%
Excl. MemUse (bytes)-196,056 -196,024 32 0.0%
Incl. PeakMemUse (bytes)1,323,360 1,323,272 -88 -0.0%
Incl. PeakMemUse (bytes) per call 15,038 15,037 -1 -0.0%
Excl. PeakMemUse (bytes)560 592 32 5.7%

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% 1,391 2.1% -328 -0.1% -88 -0.0%
Exclusive Metrics Diff for Current Function90 6.5% 32 9.8% 32 36.4%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 1,391 100.0% -328 -100.0% -88 -100.0%
Child functions
unserialize0 N/A% 1,047 75.3% -384 -117.1% -136 -154.5%
Drupal\Core\Cache\DatabaseCacheTagsChecksum::isValid0 N/A% 253 18.2% 24 7.3% 16 18.2%
explode0 N/A% 1 0.1% 0 0.0% 0 0.0%