Diff Report
Run #517c1bb406b02: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c1c27a12c9: 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 #517c1bb406b02Run #517c1c27a12c9DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)419 435 16 3.8%
Incl. Wall Time (microsec) per call 60 62 2 3.8%
Excl. Wall Time (microsec)90 90 0 0.0%
Incl. CPU (microsecs)425 440 15 3.5%
Incl. CPU (microsecs) per call 61 63 2 3.5%
Excl. CPU (microsec)83 86 3 3.6%
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)108,224 108,264 40 0.0%
Incl. PeakMemUse (bytes) per call 15,461 15,466 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% 16 0.0% 15 0.0% 0 0.0% 40 0.0%
Exclusive Metrics Diff for Current Function0 0.0% 3 20.0% 0 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 16 100.0% 15 100.0% 0 N/A% 40 100.0%
Child functions
unserialize@10 N/A% 16 100.0% 14 93.3% 0 N/A% 32 80.0%
explode0 N/A% 0 0.0% 1 6.7% 0 N/A% 0 0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 0 0.0% -3 -20.0% 0 N/A% 8 20.0%