Diff Report
Run #51902129e4489: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51901ff69a8a6: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #51902129e4489Run #51901ff69a8a6DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)698 677 -21 -3.0%
Incl. Wall Time (microsec) per call 100 97 -3 -3.0%
Excl. Wall Time (microsec)101 104 3 3.0%
Incl. CPU (microsecs)546 560 14 2.6%
Incl. CPU (microsecs) per call 78 80 2 2.6%
Excl. CPU (microsec)89 95 6 6.7%
Incl. MemUse (bytes)75,864 75,864 0 0.0%
Incl. MemUse (bytes) per call 10,838 10,838 0 0.0%
Excl. MemUse (bytes)-11,728 -11,728 0 0.0%
Incl. PeakMemUse (bytes)71,936 71,936 0 0.0%
Incl. PeakMemUse (bytes) per call 10,277 10,277 0 0.0%
Excl. PeakMemUse (bytes)1,728 1,728 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem@1 [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::prepareItem@10 N/A% -21 -38.9% 14 18.7% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function3 14.3% 6 42.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -21 -100.0% 14 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -20 -95.2% 9 64.3% 0 N/A% 0 N/A%
unserialize@10 N/A% -4 -19.0% -2 -14.3% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 1 7.1% 0 N/A% 0 N/A%