Diff Report
Run #51a287416d8a8: XHProf Run (Namespace=drupal-perf-trevorbradley)
vs.
Run #51a287c51097c: XHProf Run (Namespace=drupal-perf-trevorbradley)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51a287416d8a8Run #51a287c51097cDiffDiff%
Number of Function Calls72 72 0 0.0%
Incl. Wall Time (microsec)16,951 17,599 648 3.8%
Incl. Wall Time (microsec) per call 235 244 9 3.8%
Excl. Wall Time (microsec)940 953 13 1.4%
Incl. CPU (microsecs)36,000 16,000 -20,000 -55.6%
Incl. CPU (microsecs) per call 500 222 -278 -55.6%
Excl. CPU (microsec)4,000 0 -4,000 -100.0%
Incl. MemUse (bytes)1,336,808 1,336,808 0 0.0%
Incl. MemUse (bytes) per call 18,567 18,567 0 0.0%
Excl. MemUse (bytes)-180,000 -180,000 0 0.0%
Incl. PeakMemUse (bytes)1,338,472 1,338,472 0 0.0%
Incl. PeakMemUse (bytes) per call 18,590 18,590 0 0.0%
Excl. PeakMemUse (bytes)3,992 3,992 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% 648 60.3% -20,000 N/A% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function13 2.0% -4,000 -20.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 648 100.0% -20,000 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 529 81.6% -16,000 -80.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 103 15.9% 0 0.0% 0 N/A% 0 N/A%
explode0 N/A% 3 0.5% 0 0.0% 0 N/A% 0 N/A%