Diff Report
Run #52d3e964b719c: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52d3e93cb560e: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52d3e964b719cRun #52d3e93cb560eDiffDiff%
Number of Function Calls75 75 0 0.0%
Incl. Wall Time (microsec)7,467 7,335 -132 -1.8%
Incl. Wall Time (microsec) per call 100 98 -2 -1.8%
Excl. Wall Time (microsec)738 739 1 0.1%
Incl. CPU (microsecs)6,721 6,584 -137 -2.0%
Incl. CPU (microsecs) per call 90 88 -2 -2.0%
Excl. CPU (microsec)669 639 -30 -4.5%
Incl. MemUse (bytes)1,408,592 1,408,592 0 0.0%
Incl. MemUse (bytes) per call 18,781 18,781 0 0.0%
Excl. MemUse (bytes)-211,544 -211,544 0 0.0%
Incl. PeakMemUse (bytes)1,889,776 1,889,776 0 0.0%
Incl. PeakMemUse (bytes) per call 25,197 25,197 0 0.0%
Excl. PeakMemUse (bytes)7,128 7,128 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% -132 -44.1% -137 -48.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function1 0.8% -30 -21.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -132 -100.0% -137 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -87 -65.9% -80 -58.4% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -46 -34.8% -28 -20.4% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 1 0.7% 0 N/A% 0 N/A%