Diff Report
Run #51978cc86c728: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51978d4d92dd9: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #51978cc86c728Run #51978d4d92dd9DiffDiff%
Number of Function Calls8 8 0 0.0%
Incl. Wall Time (microsec)641 730 89 13.9%
Incl. Wall Time (microsec) per call 80 91 11 13.9%
Excl. Wall Time (microsec)109 112 3 2.8%
Incl. CPU (microsecs)575 587 12 2.1%
Incl. CPU (microsecs) per call 72 73 2 2.1%
Excl. CPU (microsec)100 103 3 3.0%
Incl. MemUse (bytes)82,336 82,336 0 0.0%
Incl. MemUse (bytes) per call 10,292 10,292 0 0.0%
Excl. MemUse (bytes)-13,312 -13,312 0 0.0%
Incl. PeakMemUse (bytes)69,264 69,352 88 0.1%
Incl. PeakMemUse (bytes) per call 8,658 8,669 11 0.1%
Excl. PeakMemUse (bytes)2,304 2,304 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% 89 35.7% 12 9.9% 0 0.0% 88 0.4%
Exclusive Metrics Diff for Current Function3 3.4% 3 25.0% 0 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 89 100.0% 12 100.0% 0 N/A% 88 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 91 102.2% 14 116.7% 0 N/A% 0 0.0%
unserialize@10 N/A% -5 -5.6% -5 -41.7% 0 N/A% 88 100.0%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 0.0%