Diff Report
Run #5196ef15c751e: XHProf Run (Namespace=drupal-perf-steveoliver)
vs.
Run #5196f0780fa8c: XHProf Run (Namespace=drupal-perf-steveoliver)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #5196ef15c751eRun #5196f0780fa8cDiffDiff%
Number of Function Calls10 10 0 0.0%
Incl. Wall Time (microsec)4,761 14,025 9,264 194.6%
Incl. Wall Time (microsec) per call 476 1,403 926 194.6%
Excl. Wall Time (microsec)964 2,891 1,927 199.9%
Incl. CPU (microsecs)4,000 4,001 1 0.0%
Incl. CPU (microsecs) per call 400 400 0 0.0%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)141,352 141,352 0 0.0%
Incl. MemUse (bytes) per call 14,135 14,135 0 0.0%
Excl. MemUse (bytes)-14,856 -14,856 0 0.0%
Incl. PeakMemUse (bytes)174,648 174,648 0 0.0%
Incl. PeakMemUse (bytes) per call 17,465 17,465 0 0.0%
Excl. PeakMemUse (bytes)704 704 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% 9,264 0.1% 1 0.0% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function1,927 20.8% 0 0.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 9,264 100.0% 1 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 4,959 53.5% 1 100.0% 0 N/A% 0 N/A%
unserialize@10 N/A% 2,338 25.2% 0 0.0% 0 N/A% 0 N/A%
explode0 N/A% 40 0.4% 0 0.0% 0 N/A% 0 N/A%