Diff Report
Run #517c1770a3264: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c1836bbd84: 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 #517c1770a3264Run #517c1836bbd84DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)435 467 32 7.4%
Incl. Wall Time (microsec) per call 62 67 5 7.4%
Excl. Wall Time (microsec)98 112 14 14.3%
Incl. CPU (microsecs)440 473 33 7.5%
Incl. CPU (microsecs) per call 63 68 5 7.5%
Excl. CPU (microsec)77 99 22 28.6%
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)108,224 108,224 0 0.0%
Incl. PeakMemUse (bytes) per call 15,461 15,461 0 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% 32 2.0% 33 2.2% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function14 43.8% 22 66.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 32 100.0% 33 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 18 56.2% 15 45.5% 0 N/A% 0 N/A%
unserialize@10 N/A% 0 0.0% -4 -12.1% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%