Diff Report
Run #517d51ae434de: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517d52998923d: 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 #517d52998923dDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)427 432 5 1.2%
Incl. Wall Time (microsec) per call 61 62 1 1.2%
Excl. Wall Time (microsec)91 93 2 2.2%
Incl. CPU (microsecs)432 444 12 2.8%
Incl. CPU (microsecs) per call 62 63 2 2.8%
Excl. CPU (microsec)74 90 16 21.6%
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% 5 0.1% 12 0.5% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function2 40.0% 16 133.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 5 100.0% 12 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 8 160.0% 7 58.3% 0 N/A% 0 N/A%
unserialize@10 N/A% -5 -100.0% -8 -66.7% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -3 -25.0% 0 N/A% 0 N/A%