Diff Report
Run #519ea884c38e9: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519ea91263307: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519ea884c38e9Run #519ea91263307DiffDiff%
Number of Function Calls117 117 0 0.0%
Incl. Wall Time (microsec)34,334 34,228 -106 -0.3%
Incl. Wall Time (microsec) per call 293 293 -1 -0.3%
Excl. Wall Time (microsec)1,580 1,587 7 0.4%
Incl. CPU (microsecs)28,466 28,684 218 0.8%
Incl. CPU (microsecs) per call 243 245 2 0.8%
Excl. CPU (microsec)1,438 1,439 1 0.1%
Incl. MemUse (bytes)2,043,520 2,043,528 8 0.0%
Incl. MemUse (bytes) per call 17,466 17,466 0 0.0%
Excl. MemUse (bytes)-576,840 -576,840 0 0.0%
Incl. PeakMemUse (bytes)2,437,696 2,437,568 -128 -0.0%
Incl. PeakMemUse (bytes) per call 20,835 20,834 -1 -0.0%
Excl. PeakMemUse (bytes)4,456 4,456 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% -106 -20.1% 218 55.2% 8 N/A% -128 N/A%
Exclusive Metrics Diff for Current Function7 6.6% 1 0.5% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -106 -100.0% 218 100.0% 8 100.0% -128 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -231 -217.9% -20 -9.2% -8 -100.0% -8 -6.2%
unserialize0 N/A% 118 111.3% 240 110.1% 16 200.0% -120 -93.8%
explode0 N/A% 0 0.0% -3 -1.4% 0 0.0% 0 0.0%