Diff Report
Run #52e43719571bf: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e436ce9c71d: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52e43719571bfRun #52e436ce9c71dDiffDiff%
Number of Function Calls95 95 0 0.0%
Incl. Wall Time (microsec)11,936 11,762 -174 -1.5%
Incl. Wall Time (microsec) per call 126 124 -2 -1.5%
Excl. Wall Time (microsec)1,056 1,019 -37 -3.5%
Incl. CPU (microsecs)10,965 10,787 -178 -1.6%
Incl. CPU (microsecs) per call 115 114 -2 -1.6%
Excl. CPU (microsec)927 878 -49 -5.3%
Incl. MemUse (bytes)2,214,712 2,214,696 -16 -0.0%
Incl. MemUse (bytes) per call 23,313 23,313 -0 -0.0%
Excl. MemUse (bytes)-330,192 -330,192 0 0.0%
Incl. PeakMemUse (bytes)2,913,016 2,912,736 -280 -0.0%
Incl. PeakMemUse (bytes) per call 30,663 30,660 -3 -0.0%
Excl. PeakMemUse (bytes)8,056 8,056 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% -174 -15.3% -178 -18.8% -16 -1.3% -280 -29.7%
Exclusive Metrics Diff for Current Function-37 -21.3% -49 -27.5% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -174 -100.0% -178 -100.0% -16 -100.0% -280 -100.0%
Child functions
unserialize0 N/A% -109 -62.6% -110 -61.8% -16 -100.0% -280 -100.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -28 -16.1% -14 -7.9% 0 0.0% 0 0.0%
explode0 N/A% 0 0.0% -5 -2.8% 0 0.0% 0 0.0%