Diff Report
Run #52c96bbf45f87: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52c96b69a1c07: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52c96bbf45f87Run #52c96b69a1c07DiffDiff%
Number of Function Calls52 52 0 0.0%
Incl. Wall Time (microsec)4,808 4,891 83 1.7%
Incl. Wall Time (microsec) per call 92 94 2 1.7%
Excl. Wall Time (microsec)495 485 -10 -2.0%
Incl. CPU (microsecs)4,161 4,241 80 1.9%
Incl. CPU (microsecs) per call 80 82 2 1.9%
Excl. CPU (microsec)424 447 23 5.4%
Incl. MemUse (bytes)844,016 843,992 -24 -0.0%
Incl. MemUse (bytes) per call 16,231 16,231 -0 -0.0%
Excl. MemUse (bytes)-133,536 -133,536 0 0.0%
Incl. PeakMemUse (bytes)1,193,512 1,193,936 424 0.0%
Incl. PeakMemUse (bytes) per call 22,952 22,960 8 0.0%
Excl. PeakMemUse (bytes)5,064 5,064 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% 83 14.8% 80 14.5% -24 -0.0% 424 0.8%
Exclusive Metrics Diff for Current Function-10 -12.0% 23 28.7% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 83 100.0% 80 100.0% -24 -100.0% 424 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 114 137.3% 92 115.0% 0 0.0% 856 201.9%
unserialize0 N/A% -18 -21.7% -25 -31.2% -16 -66.7% -432 -101.9%
explode0 N/A% -3 -3.6% -10 -12.5% -8 -33.3% 0 0.0%