Diff Report
Run #518080a5ca60d: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518081a41c05e: 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 #518080a5ca60dRun #518081a41c05eDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)487 436 -51 -10.5%
Incl. Wall Time (microsec) per call 70 62 -7 -10.5%
Excl. Wall Time (microsec)97 95 -2 -2.1%
Incl. CPU (microsecs)492 438 -54 -11.0%
Incl. CPU (microsecs) per call 70 63 -8 -11.0%
Excl. CPU (microsec)84 79 -5 -6.0%
Incl. MemUse (bytes)104,944 104,944 0 0.0%
Incl. MemUse (bytes) per call 14,992 14,992 0 0.0%
Excl. MemUse (bytes)-11,648 -11,648 0 0.0%
Incl. PeakMemUse (bytes)108,392 108,392 0 0.0%
Incl. PeakMemUse (bytes) per call 15,485 15,485 0 0.0%
Excl. PeakMemUse (bytes)2,040 2,040 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% -51 -4.2% -54 -4.2% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-2 -3.9% -5 -9.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -51 -100.0% -54 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize@10 N/A% -41 -80.4% -44 -81.5% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -8 -15.7% -5 -9.3% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%