Diff Report
Run #51afe7feeb64d: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51afe875368e3: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51afe7feeb64dRun #51afe875368e3DiffDiff%
Number of Function Calls96 96 0 0.0%
Incl. Wall Time (microsec)29,455 29,524 69 0.2%
Incl. Wall Time (microsec) per call 307 308 1 0.2%
Excl. Wall Time (microsec)1,865 1,880 15 0.8%
Incl. CPU (microsecs)23,008 22,576 -432 -1.9%
Incl. CPU (microsecs) per call 240 235 -5 -1.9%
Excl. CPU (microsec)1,701 1,753 52 3.1%
Incl. MemUse (bytes)1,958,208 1,959,256 1,048 0.1%
Incl. MemUse (bytes) per call 20,398 20,409 11 0.1%
Excl. MemUse (bytes)-267,264 -267,464 -200 -0.1%
Incl. PeakMemUse (bytes)2,258,160 2,251,784 -6,376 -0.3%
Incl. PeakMemUse (bytes) per call 23,523 23,456 -66 -0.3%
Excl. PeakMemUse (bytes)5,672 5,792 120 2.1%

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. CPU Diff
(microsec)		ICpu
Diff%		Incl.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% 69 44.2% -432 -720.0% 1,048 2.6% -6,376 -16.1%
Exclusive Metrics Diff for Current Function15 21.7% 52 12.0% -200 -19.1% 120 1.9%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 69 100.0% -432 -100.0% 1,048 100.0% -6,376 -100.0%
Child functions
unserialize0 N/A% 755 1094.2% -222 -51.4% 1,248 119.1% -5,088 -79.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -695 -1007.2% -255 -59.0% 0 0.0% -1,408 -22.1%
explode0 N/A% -6 -8.7% -7 -1.6% 0 0.0% 0 0.0%