Diff Report
Run #523f01900df5c: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #523f024cca254: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #523f01900df5cRun #523f024cca254DiffDiff%
Number of Function Calls84 84 0 0.0%
Incl. Wall Time (microsec)13,251 13,289 38 0.3%
Incl. Wall Time (microsec) per call 158 158 0 0.3%
Excl. Wall Time (microsec)1,365 1,425 60 4.4%
Incl. CPU (microsecs)10,575 10,744 169 1.6%
Incl. CPU (microsecs) per call 126 128 2 1.6%
Excl. CPU (microsec)1,234 1,285 51 4.1%
Incl. MemUse (bytes)1,562,840 1,560,520 -2,320 -0.1%
Incl. MemUse (bytes) per call 18,605 18,578 -28 -0.1%
Excl. MemUse (bytes)-246,632 -246,168 464 0.2%
Incl. PeakMemUse (bytes)1,691,264 1,689,064 -2,200 -0.1%
Incl. PeakMemUse (bytes) per call 20,134 20,108 -26 -0.1%
Excl. PeakMemUse (bytes)7,072 7,048 -24 -0.3%

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% 38 6.4% 169 39.3% -2,320 -5.5% -2,200 -5.9%
Exclusive Metrics Diff for Current Function60 157.9% 51 30.2% 464 20.0% -24 -1.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 38 100.0% 169 100.0% -2,320 -100.0% -2,200 -100.0%
Child functions
unserialize0 N/A% 31 81.6% 35 20.7% -2,784 -120.0% -2,208 -100.4%
explode0 N/A% 9 23.7% 16 9.5% 0 0.0% 0 0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -62 -163.2% 67 39.6% 0 0.0% 32 1.5%