Diff Report
Run #5198b38f0f1d5: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198b3cd5c9c1: 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 #5198b38f0f1d5Run #5198b3cd5c9c1DiffDiff%
Number of Function Calls8 8 0 0.0%
Incl. Wall Time (microsec)690 739 49 7.1%
Incl. Wall Time (microsec) per call 86 92 6 7.1%
Excl. Wall Time (microsec)94 92 -2 -2.1%
Incl. CPU (microsecs)566 597 31 5.5%
Incl. CPU (microsecs) per call 71 75 4 5.5%
Excl. CPU (microsec)83 84 1 1.2%
Incl. MemUse (bytes)82,288 82,288 0 0.0%
Incl. MemUse (bytes) per call 10,286 10,286 0 0.0%
Excl. MemUse (bytes)-13,120 -13,120 0 0.0%
Incl. PeakMemUse (bytes)77,616 77,576 -40 -0.1%
Incl. PeakMemUse (bytes) per call 9,702 9,697 -5 -0.1%
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% 49 10.7% 31 11.2% 0 0.0% -40 -0.1%
Exclusive Metrics Diff for Current Function-2 -4.1% 1 3.2% 0 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 49 100.0% 31 100.0% 0 N/A% -40 -100.0%
Child functions
unserialize@10 N/A% 37 75.5% 37 119.4% 0 N/A% -40 -100.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 14 28.6% -8 -25.8% 0 N/A% 0 0.0%
explode0 N/A% 0 0.0% 1 3.2% 0 N/A% 0 0.0%