Diff Report
Run #51aaed0fcbd4e: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51aaed996e9e3: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51aaed0fcbd4eRun #51aaed996e9e3DiffDiff%
Number of Function Calls59 59 0 0.0%
Incl. Wall Time (microsec)24,900 25,038 138 0.6%
Incl. Wall Time (microsec) per call 422 424 2 0.6%
Excl. Wall Time (microsec)958 953 -5 -0.5%
Incl. CPU (microsecs)20,365 20,439 74 0.4%
Incl. CPU (microsecs) per call 345 346 1 0.4%
Excl. CPU (microsec)840 836 -4 -0.5%
Incl. MemUse (bytes)2,051,152 2,052,416 1,264 0.1%
Incl. MemUse (bytes) per call 34,765 34,787 21 0.1%
Excl. MemUse (bytes)-150,464 -150,688 -224 -0.1%
Incl. PeakMemUse (bytes)2,254,360 2,256,048 1,688 0.1%
Incl. PeakMemUse (bytes) per call 38,209 38,238 29 0.1%
Excl. PeakMemUse (bytes)3,680 3,680 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% 138 18.6% 74 16.6% 1,264 2.0% 1,688 2.6%
Exclusive Metrics Diff for Current Function-5 -3.6% -4 -5.4% -224 -17.7% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 138 100.0% 74 100.0% 1,264 100.0% 1,688 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 96 69.6% 86 116.2% 0 0.0% 64 3.8%
unserialize0 N/A% 55 39.9% 0 0.0% 1,488 117.7% 1,624 96.2%
explode0 N/A% -8 -5.8% -8 -10.8% 0 0.0% 0 0.0%