Diff Report
Run #517d750163e11: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517d7587ada9c: 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 #517d750163e11Run #517d7587ada9cDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)457 432 -25 -5.5%
Incl. Wall Time (microsec) per call 65 62 -4 -5.5%
Excl. Wall Time (microsec)95 87 -8 -8.4%
Incl. CPU (microsecs)461 435 -26 -5.6%
Incl. CPU (microsecs) per call 66 62 -4 -5.6%
Excl. CPU (microsec)80 69 -11 -13.8%
Incl. MemUse (bytes)104,936 104,936 0 0.0%
Incl. MemUse (bytes) per call 14,991 14,991 0 0.0%
Excl. MemUse (bytes)-11,648 -11,648 0 0.0%
Incl. PeakMemUse (bytes)108,184 108,224 40 0.0%
Incl. PeakMemUse (bytes) per call 15,455 15,461 6 0.0%
Excl. PeakMemUse (bytes)1,992 1,992 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% -25 -0.3% -26 -0.3% 0 0.0% 40 0.4%
Exclusive Metrics Diff for Current Function-8 -32.0% -11 -42.3% 0 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -25 -100.0% -26 -100.0% 0 N/A% 40 100.0%
Child functions
unserialize@10 N/A% -23 -92.0% -23 -88.5% 0 N/A% 40 100.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 6 24.0% 7 26.9% 0 N/A% 0 0.0%
explode0 N/A% 0 0.0% 1 3.8% 0 N/A% 0 0.0%