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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52e436ce9c71dRun #52e43719571bfDiffDiff%
Number of Function Calls95 95 0 0.0%
Incl. Wall Time (microsec)11,762 11,936 174 1.5%
Incl. Wall Time (microsec) per call 124 126 2 1.5%
Excl. Wall Time (microsec)1,019 1,056 37 3.6%
Incl. CPU (microsecs)10,787 10,965 178 1.7%
Incl. CPU (microsecs) per call 114 115 2 1.7%
Excl. CPU (microsec)878 927 49 5.6%
Incl. MemUse (bytes)2,214,696 2,214,712 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)2,912,736 2,913,016 280 0.0%
Incl. PeakMemUse (bytes) per call 30,660 30,663 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 Function37 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%