Diff Report
Run #5659123816918: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #5659177493c27: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5659123816918Run #5659177493c27DiffDiff%
Number of Function Calls21 21 0 0.0%
Incl. Wall Time (microsec)6,988 7,637 649 9.3%
Incl. Wall Time (microsec) per call 333 364 31 9.3%
Excl. Wall Time (microsec)318 334 16 5.0%
Incl. MemUse (bytes)955,592 955,736 144 0.0%
Incl. MemUse (bytes) per call 45,504 45,511 7 0.0%
Excl. MemUse (bytes)-1,397,736 -1,397,768 -32 -0.0%
Incl. PeakMemUse (bytes)2,128,776 2,137,576 8,800 0.4%
Incl. PeakMemUse (bytes) per call 101,370 101,789 419 0.4%
Excl. PeakMemUse (bytes)744 744 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% 649 7.3% 144 0.9% 8,800 53.4%
Exclusive Metrics Diff for Current Function16 2.5% -32 -22.2% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 649 100.0% 144 100.0% 8,800 100.0%
Child functions
unserialize0 N/A% 453 69.8% 224 155.6% 8,208 93.3%
Drupal\Core\Cache\DatabaseCacheTagsChecksum::isValid0 N/A% 172 26.5% -48 -33.3% 592 6.7%
spl_autoload_call0 N/A% 7 1.1% 0 0.0% 0 0.0%
explode0 N/A% 1 0.2% 0 0.0% 0 0.0%