Diff Report
Run #519f02001a77a: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519f012418c24: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519f02001a77aRun #519f012418c24DiffDiff%
Number of Function Calls121 121 0 0.0%
Incl. Wall Time (microsec)17,309 17,106 -203 -1.2%
Incl. Wall Time (microsec) per call 143 141 -2 -1.2%
Excl. Wall Time (microsec)1,801 1,800 -1 -0.1%
Incl. CPU (microsecs)14,585 14,411 -174 -1.2%
Incl. CPU (microsecs) per call 121 119 -1 -1.2%
Excl. CPU (microsec)1,659 1,636 -23 -1.4%
Incl. MemUse (bytes)2,220,344 2,220,344 0 0.0%
Incl. MemUse (bytes) per call 18,350 18,350 0 0.0%
Excl. MemUse (bytes)-401,320 -401,320 0 0.0%
Incl. PeakMemUse (bytes)2,247,248 2,247,248 0 0.0%
Incl. PeakMemUse (bytes) per call 18,572 18,572 0 0.0%
Excl. PeakMemUse (bytes)6,352 6,352 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% -203 -62.8% -174 -12.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-1 -0.5% -23 -13.2% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -203 -100.0% -174 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -315 -155.2% -174 -100.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 109 53.7% 20 11.5% 0 N/A% 0 N/A%
explode0 N/A% 4 2.0% 3 1.7% 0 N/A% 0 N/A%