Diff Report
Run #51abc563dc23f: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51abc4cb0a647: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51abc563dc23fRun #51abc4cb0a647DiffDiff%
Number of Function Calls49 49 0 0.0%
Incl. Wall Time (microsec)16,994 16,907 -87 -0.5%
Incl. Wall Time (microsec) per call 347 345 -2 -0.5%
Excl. Wall Time (microsec)777 787 10 1.3%
Incl. CPU (microsecs)13,257 13,236 -21 -0.2%
Incl. CPU (microsecs) per call 271 270 -0 -0.2%
Excl. CPU (microsec)721 711 -10 -1.4%
Incl. MemUse (bytes)1,300,320 1,300,320 0 0.0%
Incl. MemUse (bytes) per call 26,537 26,537 0 0.0%
Excl. MemUse (bytes)-126,496 -126,496 0 0.0%
Incl. PeakMemUse (bytes)1,431,152 1,431,152 0 0.0%
Incl. PeakMemUse (bytes) per call 29,207 29,207 0 0.0%
Excl. PeakMemUse (bytes)2,552 2,552 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% -87 -42.9% -21 -17.1% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function10 11.5% -10 -47.6% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -87 -100.0% -21 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -317 -364.4% -120 -571.4% 0 N/A% 0 N/A%
unserialize0 N/A% 214 246.0% 105 500.0% 0 N/A% 0 N/A%
explode0 N/A% 6 6.9% 4 19.0% 0 N/A% 0 N/A%