Diff Report
Run #51afe9f952272: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51afe9a0d59b4: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51afe9f952272Run #51afe9a0d59b4DiffDiff%
Number of Function Calls96 96 0 0.0%
Incl. Wall Time (microsec)29,229 30,162 933 3.2%
Incl. Wall Time (microsec) per call 304 314 10 3.2%
Excl. Wall Time (microsec)1,836 1,895 59 3.2%
Incl. CPU (microsecs)22,277 23,100 823 3.7%
Incl. CPU (microsecs) per call 232 241 9 3.7%
Excl. CPU (microsec)1,698 1,778 80 4.7%
Incl. MemUse (bytes)1,958,208 1,958,208 0 0.0%
Incl. MemUse (bytes) per call 20,398 20,398 0 0.0%
Excl. MemUse (bytes)-267,264 -267,264 0 0.0%
Incl. PeakMemUse (bytes)2,258,160 2,258,160 0 0.0%
Incl. PeakMemUse (bytes) per call 23,523 23,523 0 0.0%
Excl. PeakMemUse (bytes)5,672 5,672 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. 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% 933 85.0% 823 118.9% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function59 6.3% 80 9.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 933 100.0% 823 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 778 83.4% 626 76.1% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 71 7.6% 95 11.5% 0 N/A% 0 N/A%
explode0 N/A% 25 2.7% 22 2.7% 0 N/A% 0 N/A%