Diff Report
Run #51f5bb45dd257: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51f5bb078e5a7: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51f5bb45dd257Run #51f5bb078e5a7DiffDiff%
Number of Function Calls105 105 0 0.0%
Incl. Wall Time (microsec)19,710 19,461 -249 -1.3%
Incl. Wall Time (microsec) per call 188 185 -2 -1.3%
Excl. Wall Time (microsec)1,509 1,549 40 2.7%
Incl. CPU (microsecs)16,262 16,263 1 0.0%
Incl. CPU (microsecs) per call 155 155 0 0.0%
Excl. CPU (microsec)1,388 1,420 32 2.3%
Incl. MemUse (bytes)2,013,112 2,013,112 0 0.0%
Incl. MemUse (bytes) per call 19,172 19,172 0 0.0%
Excl. MemUse (bytes)-278,272 -278,272 0 0.0%
Incl. PeakMemUse (bytes)2,534,096 2,534,096 0 0.0%
Incl. PeakMemUse (bytes) per call 24,134 24,134 0 0.0%
Excl. PeakMemUse (bytes)7,456 7,456 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% -249 -33.0% 1 0.9% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function40 16.1% 32 3200.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -249 -100.0% 1 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -232 -93.2% -45 -4500.0% 0 N/A% 0 N/A%
unserialize0 N/A% -57 -22.9% 8 800.0% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 6 600.0% 0 N/A% 0 N/A%