Diff Report
Run #519a6c2cb620c: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519a6b3fa9c9c: 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 #519a6c2cb620cRun #519a6b3fa9c9cDiffDiff%
Number of Function Calls8 8 0 0.0%
Incl. Wall Time (microsec)710 749 39 5.5%
Incl. Wall Time (microsec) per call 89 94 5 5.5%
Excl. Wall Time (microsec)112 116 4 3.6%
Incl. CPU (microsecs)605 661 56 9.3%
Incl. CPU (microsecs) per call 76 83 7 9.3%
Excl. CPU (microsec)97 105 8 8.2%
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 77,536 0 0.0%
Incl. PeakMemUse (bytes) per call 9,692 9,692 0 0.0%
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% 39 5.0% 56 7.4% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function4 10.3% 8 14.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 39 100.0% 56 100.0% 0 N/A% 0 N/A%
Child functions
unserialize@10 N/A% 59 151.3% 56 100.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -24 -61.5% -6 -10.7% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -2 -3.6% 0 N/A% 0 N/A%