Diff Report
Run #51ec623000e0c: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec6582d0962: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip
Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ec623000e0cRun #51ec6582d0962DiffDiff%
Number of Function Calls141 141 0 0.0%
Incl. Wall Time (microsec)19,229 18,761 -468 -2.4%
Incl. Wall Time (microsec) per call 136 133 -3 -2.4%
Excl. Wall Time (microsec)1,681 1,653 -28 -1.7%
Incl. CPU (microsecs)17,754 17,379 -375 -2.1%
Incl. CPU (microsecs) per call 126 123 -3 -2.1%
Excl. CPU (microsec)1,511 1,521 10 0.7%
Incl. MemUse (bytes)2,469,008 2,469,008 0 0.0%
Incl. MemUse (bytes) per call 17,511 17,511 0 0.0%
Excl. MemUse (bytes)-511,680 -511,680 0 0.0%
Incl. PeakMemUse (bytes)3,090,824 3,090,824 0 0.0%
Incl. PeakMemUse (bytes) per call 21,921 21,921 0 0.0%
Excl. PeakMemUse (bytes)8,624 8,624 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% -468 -18.2% -375 -31.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-28 -6.0% 10 2.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -468 -100.0% -375 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -409 -87.4% -396 -105.6% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -31 -6.6% 14 3.7% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -3 -0.8% 0 N/A% 0 N/A%