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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52c96b69a1c07Run #52c96bbf45f87DiffDiff%
Number of Function Calls52 52 0 0.0%
Incl. Wall Time (microsec)4,891 4,808 -83 -1.7%
Incl. Wall Time (microsec) per call 94 92 -2 -1.7%
Excl. Wall Time (microsec)485 495 10 2.1%
Incl. CPU (microsecs)4,241 4,161 -80 -1.9%
Incl. CPU (microsecs) per call 82 80 -2 -1.9%
Excl. CPU (microsec)447 424 -23 -5.1%
Incl. MemUse (bytes)843,992 844,016 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)1,193,936 1,193,512 -424 -0.0%
Incl. PeakMemUse (bytes) per call 22,960 22,952 -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 Function10 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%