Diff Report
Run #51ec485525502: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec491641923: 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 #51ec485525502Run #51ec491641923DiffDiff%
Number of Function Calls9 9 0 0.0%
Incl. Wall Time (microsec)822 865 43 5.2%
Incl. Wall Time (microsec) per call 91 96 5 5.2%
Excl. Wall Time (microsec)109 116 7 6.4%
Incl. CPU (microsecs)743 787 44 5.9%
Incl. CPU (microsecs) per call 83 87 5 5.9%
Excl. CPU (microsec)86 104 18 20.9%
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 98,720 120 0.1%
Incl. PeakMemUse (bytes) per call 10,956 10,969 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 Function7 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%