Diff Report
Run #517d51ae434de: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517d525cbaeb1: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #517d51ae434deRun #517d525cbaeb1DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)427 436 9 2.1%
Incl. Wall Time (microsec) per call 61 62 1 2.1%
Excl. Wall Time (microsec)91 89 -2 -2.2%
Incl. CPU (microsecs)432 441 9 2.1%
Incl. CPU (microsecs) per call 62 63 1 2.1%
Excl. CPU (microsec)74 79 5 6.8%
Incl. MemUse (bytes)104,936 104,936 0 0.0%
Incl. MemUse (bytes) per call 14,991 14,991 0 0.0%
Excl. MemUse (bytes)-11,648 -11,648 0 0.0%
Incl. PeakMemUse (bytes)108,224 108,224 0 0.0%
Incl. PeakMemUse (bytes) per call 15,461 15,461 0 0.0%
Excl. PeakMemUse (bytes)1,992 1,992 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem@1 [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::prepareItem@10 N/A% 9 0.1% 9 0.2% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-2 -22.2% 5 55.6% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 9 100.0% 9 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 17 188.9% 16 177.8% 0 N/A% 0 N/A%
unserialize@10 N/A% -6 -66.7% -9 -100.0% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -3 -33.3% 0 N/A% 0 N/A%