Diff Report
Run #52c96ba78d568: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52c96b69a1c07: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52c96ba78d568Run #52c96b69a1c07DiffDiff%
Number of Function Calls52 52 0 0.0%
Incl. Wall Time (microsec)4,907 4,891 -16 -0.3%
Incl. Wall Time (microsec) per call 94 94 -0 -0.3%
Excl. Wall Time (microsec)498 485 -13 -2.6%
Incl. CPU (microsecs)4,256 4,241 -15 -0.4%
Incl. CPU (microsecs) per call 82 82 -0 -0.4%
Excl. CPU (microsec)441 447 6 1.4%
Incl. MemUse (bytes)843,992 843,992 0 0.0%
Incl. MemUse (bytes) per call 16,231 16,231 0 0.0%
Excl. MemUse (bytes)-133,536 -133,536 0 0.0%
Incl. PeakMemUse (bytes)1,193,936 1,193,936 0 0.0%
Incl. PeakMemUse (bytes) per call 22,960 22,960 0 0.0%
Excl. PeakMemUse (bytes)5,064 5,064 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% -16 -21.6% -15 -1500.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-13 -81.2% 6 40.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -16 -100.0% -15 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -41 -256.2% -49 -326.7% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 38 237.5% 32 213.3% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -4 -26.7% 0 N/A% 0 N/A%