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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51aaed996e9e3Run #51aaed0fcbd4eDiffDiff%
Number of Function Calls59 59 0 0.0%
Incl. Wall Time (microsec)25,038 24,900 -138 -0.6%
Incl. Wall Time (microsec) per call 424 422 -2 -0.6%
Excl. Wall Time (microsec)953 958 5 0.5%
Incl. CPU (microsecs)20,439 20,365 -74 -0.4%
Incl. CPU (microsecs) per call 346 345 -1 -0.4%
Excl. CPU (microsec)836 840 4 0.5%
Incl. MemUse (bytes)2,052,416 2,051,152 -1,264 -0.1%
Incl. MemUse (bytes) per call 34,787 34,765 -21 -0.1%
Excl. MemUse (bytes)-150,688 -150,464 224 0.1%
Incl. PeakMemUse (bytes)2,256,048 2,254,360 -1,688 -0.1%
Incl. PeakMemUse (bytes) per call 38,238 38,209 -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 Function5 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%