Diff Report
Run #52d4b590e6e18: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52d4b5e5ddba1: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52d4b590e6e18Run #52d4b5e5ddba1DiffDiff%
Number of Function Calls80 80 0 0.0%
Incl. Wall Time (microsec)8,178 8,218 40 0.5%
Incl. Wall Time (microsec) per call 102 103 1 0.5%
Excl. Wall Time (microsec)792 799 7 0.9%
Incl. CPU (microsecs)7,440 7,491 51 0.7%
Incl. CPU (microsecs) per call 93 94 1 0.7%
Excl. CPU (microsec)706 697 -9 -1.3%
Incl. MemUse (bytes)1,533,328 1,533,328 0 0.0%
Incl. MemUse (bytes) per call 19,167 19,167 0 0.0%
Excl. MemUse (bytes)-225,176 -225,176 0 0.0%
Incl. PeakMemUse (bytes)2,079,200 2,079,200 0 0.0%
Incl. PeakMemUse (bytes) per call 25,990 25,990 0 0.0%
Excl. PeakMemUse (bytes)7,808 7,808 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% 40 13.6% 51 14.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function7 17.5% -9 -17.6% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 40 100.0% 51 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 33 82.5% 42 82.4% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 0 0.0% 18 35.3% 0 N/A% 0 N/A%