Diff Report
Run #526a240c73a50: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #526a239923027: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #526a240c73a50Run #526a239923027DiffDiff%
Number of Function Calls63 63 0 0.0%
Incl. Wall Time (microsec)8,669 9,070 401 4.6%
Incl. Wall Time (microsec) per call 138 144 6 4.6%
Excl. Wall Time (microsec)959 999 40 4.2%
Incl. CPU (microsecs)7,572 7,809 237 3.1%
Incl. CPU (microsecs) per call 120 124 4 3.1%
Excl. CPU (microsec)865 901 36 4.2%
Incl. MemUse (bytes)866,952 865,280 -1,672 -0.2%
Incl. MemUse (bytes) per call 13,761 13,735 -27 -0.2%
Excl. MemUse (bytes)-149,880 -149,560 320 0.2%
Incl. PeakMemUse (bytes)1,242,016 1,248,536 6,520 0.5%
Incl. PeakMemUse (bytes) per call 19,715 19,818 103 0.5%
Excl. PeakMemUse (bytes)5,824 5,968 144 2.5%

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% 401 1179.4% 237 143.6% -1,672 -0.8% 6,520 3.2%
Exclusive Metrics Diff for Current Function40 10.0% 36 15.2% 320 19.1% 144 2.2%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 401 100.0% 237 100.0% -1,672 -100.0% 6,520 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 362 90.3% 204 86.1% -8 -0.5% 16 0.2%
explode0 N/A% -1 -0.2% 2 0.8% 0 0.0% 0 0.0%
unserialize0 N/A% 0 0.0% -5 -2.1% -1,984 -118.7% 6,360 97.5%