Diff Report
Run #51904f8640386: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519050b464828: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51904f8640386Run #519050b464828DiffDiff%
Number of Function Calls66 66 0 0.0%
Incl. Wall Time (microsec)19,521 19,664 143 0.7%
Incl. Wall Time (microsec) per call 296 298 2 0.7%
Excl. Wall Time (microsec)998 999 1 0.1%
Incl. CPU (microsecs)15,820 15,815 -5 -0.0%
Incl. CPU (microsecs) per call 240 240 -0 -0.0%
Excl. CPU (microsec)896 898 2 0.2%
Incl. MemUse (bytes)1,386,672 1,386,672 0 0.0%
Incl. MemUse (bytes) per call 21,010 21,010 0 0.0%
Excl. MemUse (bytes)-170,672 -170,672 0 0.0%
Incl. PeakMemUse (bytes)1,920,056 1,920,056 0 0.0%
Incl. PeakMemUse (bytes) per call 29,092 29,092 0 0.0%
Excl. PeakMemUse (bytes)6,600 6,600 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% 143 155.4% -5 -1.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function1 0.7% 2 40.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 143 100.0% -5 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 114 79.7% -141 -2820.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 24 16.8% 133 2660.0% 0 N/A% 0 N/A%
explode0 N/A% 4 2.8% 1 20.0% 0 N/A% 0 N/A%