Diff Report
Run #52e48ec52134e: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #52e48e674e7b6: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52e48ec52134eRun #52e48e674e7b6DiffDiff%
Number of Function Calls58 58 0 0.0%
Incl. Wall Time (microsec)8,775 8,637 -138 -1.6%
Incl. Wall Time (microsec) per call 151 149 -2 -1.6%
Excl. Wall Time (microsec)946 929 -17 -1.8%
Incl. CPU (microsecs)8,501 8,405 -96 -1.1%
Incl. CPU (microsecs) per call 147 145 -2 -1.1%
Excl. CPU (microsec)870 849 -21 -2.4%
Incl. MemUse (bytes)990,800 990,800 0 0.0%
Incl. MemUse (bytes) per call 17,083 17,083 0 0.0%
Excl. MemUse (bytes)-137,544 -137,544 0 0.0%
Incl. PeakMemUse (bytes)1,367,144 1,367,144 0 0.0%
Incl. PeakMemUse (bytes) per call 23,571 23,571 0 0.0%
Excl. PeakMemUse (bytes)4,800 4,800 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% -138 -20.2% -96 -15.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-17 -12.3% -21 -21.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -138 -100.0% -96 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -237 -171.7% -188 -195.8% 0 N/A% 0 N/A%
unserialize0 N/A% 124 89.9% 123 128.1% 0 N/A% 0 N/A%
explode0 N/A% -8 -5.8% -10 -10.4% 0 N/A% 0 N/A%