Diff Report
Run #51ec491641923: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec485525502: 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 #51ec491641923Run #51ec485525502DiffDiff%
Number of Function Calls9 9 0 0.0%
Incl. Wall Time (microsec)865 822 -43 -5.0%
Incl. Wall Time (microsec) per call 96 91 -5 -5.0%
Excl. Wall Time (microsec)116 109 -7 -6.0%
Incl. CPU (microsecs)787 743 -44 -5.6%
Incl. CPU (microsecs) per call 87 83 -5 -5.6%
Excl. CPU (microsec)104 86 -18 -17.3%
Incl. MemUse (bytes)82,304 82,304 0 0.0%
Incl. MemUse (bytes) per call 9,145 9,145 0 0.0%
Excl. MemUse (bytes)-13,784 -13,784 0 0.0%
Incl. PeakMemUse (bytes)98,720 98,600 -120 -0.1%
Incl. PeakMemUse (bytes) per call 10,969 10,956 -13 -0.1%
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% -43 -2.8% -44 -2.5% 0 0.0% -120 -0.1%
Exclusive Metrics Diff for Current Function-7 -16.3% -18 -40.9% 0 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -43 -100.0% -44 -100.0% 0 N/A% -120 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -36 -83.7% -30 -68.2% 0 N/A% -120 -100.0%
unserialize@10 N/A% 0 0.0% 4 9.1% 0 N/A% 0 0.0%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 0.0%