Diff Report
Run #51af435181b2e: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51af3d98520b7: 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 #51af435181b2eRun #51af3d98520b7DiffDiff%
Number of Function Calls8 8 0 0.0%
Incl. Wall Time (microsec)838 776 -62 -7.4%
Incl. Wall Time (microsec) per call 105 97 -8 -7.4%
Excl. Wall Time (microsec)118 116 -2 -1.7%
Incl. CPU (microsecs)691 729 38 5.5%
Incl. CPU (microsecs) per call 86 91 5 5.5%
Excl. CPU (microsec)107 105 -2 -1.9%
Incl. MemUse (bytes)151,520 151,520 0 0.0%
Incl. MemUse (bytes) per call 18,940 18,940 0 0.0%
Excl. MemUse (bytes)-19,456 -19,456 0 0.0%
Incl. PeakMemUse (bytes)182,832 182,832 0 0.0%
Incl. PeakMemUse (bytes) per call 22,854 22,854 0 0.0%
Excl. PeakMemUse (bytes)584 584 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% -62 -7.8% 38 4.0% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-2 -3.2% -2 -5.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -62 -100.0% 38 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -66 -106.5% 30 78.9% 0 N/A% 0 N/A%
unserialize@10 N/A% 6 9.7% 8 21.1% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 2 5.3% 0 N/A% 0 N/A%