Diff Report
Run #51ec623000e0c: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec6582d0962: 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 #51ec6582d0962DiffDiff%
Number of Function Calls9 9 0 0.0%
Incl. Wall Time (microsec)862 849 -13 -1.5%
Incl. Wall Time (microsec) per call 96 94 -1 -1.5%
Excl. Wall Time (microsec)110 110 0 0.0%
Incl. CPU (microsecs)745 731 -14 -1.9%
Incl. CPU (microsecs) per call 83 81 -2 -1.9%
Excl. CPU (microsec)95 97 2 2.1%
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% -13 -0.5% -14 -1.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function0 0.0% 2 14.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -13 -100.0% -14 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize@10 N/A% -11 -84.6% -10 -71.4% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -2 -15.4% -5 -35.7% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -1 -7.1% 0 N/A% 0 N/A%