Diff Report
Run #518b13c95a609: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518b14dd8356b: 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 #518b13c95a609Run #518b14dd8356bDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)697 872 175 25.1%
Incl. Wall Time (microsec) per call 100 125 25 25.1%
Excl. Wall Time (microsec)95 95 0 0.0%
Incl. CPU (microsecs)544 643 99 18.2%
Incl. CPU (microsecs) per call 78 92 14 18.2%
Excl. CPU (microsec)86 83 -3 -3.5%
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)72,072 72,072 0 0.0%
Incl. PeakMemUse (bytes) per call 10,296 10,296 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% 175 21.9% 99 15.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function0 0.0% -3 -3.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 175 100.0% 99 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 161 92.0% 86 86.9% 0 N/A% 0 N/A%
unserialize@10 N/A% 13 7.4% 15 15.2% 0 N/A% 0 N/A%
explode0 N/A% 1 0.6% 1 1.0% 0 N/A% 0 N/A%