Diff Report
Run #519a6b3fa9c9c: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519a6f8ea14bd: 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 #519a6b3fa9c9cRun #519a6f8ea14bdDiffDiff%
Number of Function Calls8 8 0 0.0%
Incl. Wall Time (microsec)749 688 -61 -8.1%
Incl. Wall Time (microsec) per call 94 86 -8 -8.1%
Excl. Wall Time (microsec)116 109 -7 -6.0%
Incl. CPU (microsecs)661 604 -57 -8.6%
Incl. CPU (microsecs) per call 83 76 -7 -8.6%
Excl. CPU (microsec)105 100 -5 -4.8%
Incl. MemUse (bytes)82,296 82,296 0 0.0%
Incl. MemUse (bytes) per call 10,287 10,287 0 0.0%
Excl. MemUse (bytes)-13,112 -13,112 0 0.0%
Incl. PeakMemUse (bytes)77,536 77,576 40 0.1%
Incl. PeakMemUse (bytes) per call 9,692 9,697 5 0.1%
Excl. PeakMemUse (bytes)1,728 1,728 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% -61 -5.1% -57 -4.9% 0 0.0% 40 0.1%
Exclusive Metrics Diff for Current Function-7 -11.5% -5 -8.8% 0 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -61 -100.0% -57 -100.0% 0 N/A% 40 100.0%
Child functions
unserialize@10 N/A% -55 -90.2% -55 -96.5% 0 N/A% 40 100.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 1 1.6% 2 3.5% 0 N/A% 0 0.0%
explode0 N/A% 0 0.0% 1 1.8% 0 N/A% 0 0.0%