Diff Report
Run #51ec623000e0c: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec66a5a877d: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #51ec623000e0cRun #51ec66a5a877dDiffDiff%
Number of Function Calls9 9 0 0.0%
Incl. Wall Time (microsec)862 821 -41 -4.8%
Incl. Wall Time (microsec) per call 96 91 -5 -4.8%
Excl. Wall Time (microsec)110 114 4 3.6%
Incl. CPU (microsecs)745 751 6 0.8%
Incl. CPU (microsecs) per call 83 83 1 0.8%
Excl. CPU (microsec)95 103 8 8.4%
Incl. MemUse (bytes)82,288 82,288 0 0.0%
Incl. MemUse (bytes) per call 9,143 9,143 0 0.0%
Excl. MemUse (bytes)-13,800 -13,800 0 0.0%
Incl. PeakMemUse (bytes)98,352 98,352 0 0.0%
Incl. PeakMemUse (bytes) per call 10,928 10,928 0 0.0%
Excl. PeakMemUse (bytes)1,472 1,472 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% -41 -1.7% 6 0.2% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function4 9.8% 8 133.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -41 -100.0% 6 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -35 -85.4% 5 83.3% 0 N/A% 0 N/A%
unserialize@10 N/A% -10 -24.4% -8 -133.3% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 1 16.7% 0 N/A% 0 N/A%