Diff Report
Run #51ec489b18752: 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 #51ec489b18752Run #51ec485525502DiffDiff%
Number of Function Calls9 9 0 0.0%
Incl. Wall Time (microsec)850 822 -28 -3.3%
Incl. Wall Time (microsec) per call 94 91 -3 -3.3%
Excl. Wall Time (microsec)111 109 -2 -1.8%
Incl. CPU (microsecs)731 743 12 1.6%
Incl. CPU (microsecs) per call 81 83 1 1.6%
Excl. CPU (microsec)102 86 -16 -15.7%
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)98,600 98,600 0 0.0%
Incl. PeakMemUse (bytes) per call 10,956 10,956 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% -28 -2.7% 12 3.1% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-2 -7.1% -16 -133.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -28 -100.0% 12 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -47 -167.9% 4 33.3% 0 N/A% 0 N/A%
unserialize@10 N/A% 21 75.0% 24 200.0% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%