Diff Report
Run #5178989df1d0f: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517896dc57c6e: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #5178989df1d0fRun #517896dc57c6eDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)491 456 -35 -7.1%
Incl. Wall Time (microsec) per call 70 65 -5 -7.1%
Excl. Wall Time (microsec)95 90 -5 -5.3%
Incl. CPU (microsecs)500 462 -38 -7.6%
Incl. CPU (microsecs) per call 71 66 -5 -7.6%
Excl. CPU (microsec)86 81 -5 -5.8%
Incl. MemUse (bytes)106,816 106,816 0 0.0%
Incl. MemUse (bytes) per call 15,259 15,259 0 0.0%
Excl. MemUse (bytes)-12,288 -12,288 0 0.0%
Incl. PeakMemUse (bytes)110,840 110,840 0 0.0%
Incl. PeakMemUse (bytes) per call 15,834 15,834 0 0.0%
Excl. PeakMemUse (bytes)2,136 2,136 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem@1 [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::prepareItem@10 N/A% -35 -0.9% -38 -0.8% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-5 -14.3% -5 -13.2% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -35 -100.0% -38 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize@10 N/A% -27 -77.1% -25 -65.8% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -3 -8.6% -8 -21.1% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%