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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52c96b69a1c07Run #52c96ba78d568DiffDiff%
Number of Function Calls52 52 0 0.0%
Incl. Wall Time (microsec)4,891 4,907 16 0.3%
Incl. Wall Time (microsec) per call 94 94 0 0.3%
Excl. Wall Time (microsec)485 498 13 2.7%
Incl. CPU (microsecs)4,241 4,256 15 0.4%
Incl. CPU (microsecs) per call 82 82 0 0.4%
Excl. CPU (microsec)447 441 -6 -1.3%
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 Function13 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%