Diff Report
Run #518ed14bbba55: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518eceb4aac68: 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 #518ed14bbba55Run #518eceb4aac68DiffDiff%
Number of Function Calls8 8 0 0.0%
Incl. Wall Time (microsec)718 735 17 2.4%
Incl. Wall Time (microsec) per call 90 92 2 2.4%
Excl. Wall Time (microsec)111 113 2 1.8%
Incl. CPU (microsecs)602 614 12 2.0%
Incl. CPU (microsecs) per call 75 77 2 2.0%
Excl. CPU (microsec)96 106 10 10.4%
Incl. MemUse (bytes)80,400 80,400 0 0.0%
Incl. MemUse (bytes) per call 10,050 10,050 0 0.0%
Excl. MemUse (bytes)-12,576 -12,576 0 0.0%
Incl. PeakMemUse (bytes)76,880 76,880 0 0.0%
Incl. PeakMemUse (bytes) per call 9,610 9,610 0 0.0%
Excl. PeakMemUse (bytes)2,048 2,048 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% 17 6.2% 12 3.8% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function2 11.8% 10 83.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 17 100.0% 12 100.0% 0 N/A% 0 N/A%
Child functions
unserialize@10 N/A% 10 58.8% 4 33.3% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 5 29.4% -2 -16.7% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%