Diff Report
Run #51904f8640386: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519050cbdc201: 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 #51904f8640386Run #519050cbdc201DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)679 716 37 5.4%
Incl. Wall Time (microsec) per call 97 102 5 5.4%
Excl. Wall Time (microsec)91 97 6 6.6%
Incl. CPU (microsecs)539 591 52 9.6%
Incl. CPU (microsecs) per call 77 84 7 9.6%
Excl. CPU (microsec)80 87 7 8.8%
Incl. MemUse (bytes)75,840 75,840 0 0.0%
Incl. MemUse (bytes) per call 10,834 10,834 0 0.0%
Excl. MemUse (bytes)-11,728 -11,728 0 0.0%
Incl. PeakMemUse (bytes)71,784 71,784 0 0.0%
Incl. PeakMemUse (bytes) per call 10,255 10,255 0 0.0%
Excl. PeakMemUse (bytes)1,776 1,776 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% 37 3.3% 52 3.3% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function6 16.2% 7 13.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 37 100.0% 52 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 38 102.7% 53 101.9% 0 N/A% 0 N/A%
unserialize@10 N/A% -7 -18.9% -7 -13.5% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -1 -1.9% 0 N/A% 0 N/A%