Diff Report
Run #523e49a66dc20: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #523e4a8c453b2: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #523e49a66dc20Run #523e4a8c453b2DiffDiff%
Number of Function Calls60 60 0 0.0%
Incl. Wall Time (microsec)12,976 12,071 -905 -7.0%
Incl. Wall Time (microsec) per call 216 201 -15 -7.0%
Excl. Wall Time (microsec)937 923 -14 -1.5%
Incl. CPU (microsecs)11,014 10,274 -740 -6.7%
Incl. CPU (microsecs) per call 184 171 -12 -6.7%
Excl. CPU (microsec)844 812 -32 -3.8%
Incl. MemUse (bytes)2,227,608 2,227,608 0 0.0%
Incl. MemUse (bytes) per call 37,127 37,127 0 0.0%
Excl. MemUse (bytes)-457,208 -457,208 0 0.0%
Incl. PeakMemUse (bytes)2,471,528 2,471,528 0 0.0%
Incl. PeakMemUse (bytes) per call 41,192 41,192 0 0.0%
Excl. PeakMemUse (bytes)3,832 3,832 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% -905 -10.2% -740 -16.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-14 -1.5% -32 -4.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -905 -100.0% -740 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -509 -56.2% -500 -67.6% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -375 -41.4% -205 -27.7% 0 N/A% 0 N/A%
explode0 N/A% -7 -0.8% -3 -0.4% 0 N/A% 0 N/A%