Diff Report
Run #519d4cd4e396d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d4d6ecb28c: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519d4cd4e396dRun #519d4d6ecb28cDiffDiff%
Number of Function Calls103 103 0 0.0%
Incl. Wall Time (microsec)35,218 35,889 671 1.9%
Incl. Wall Time (microsec) per call 342 348 7 1.9%
Excl. Wall Time (microsec)2,298 2,297 -1 -0.0%
Incl. CPU (microsecs)29,827 29,966 139 0.5%
Incl. CPU (microsecs) per call 290 291 1 0.5%
Excl. CPU (microsec)2,112 2,153 41 1.9%
Incl. MemUse (bytes)988,828 988,828 0 0.0%
Incl. MemUse (bytes) per call 9,600 9,600 0 0.0%
Excl. MemUse (bytes)-271,740 -271,740 0 0.0%
Incl. PeakMemUse (bytes)1,383,228 1,383,228 0 0.0%
Incl. PeakMemUse (bytes) per call 13,429 13,429 0 0.0%
Excl. PeakMemUse (bytes)5,592 5,592 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem [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::prepareItem0 N/A% 671 88.8% 139 43.8% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-1 -0.1% 41 29.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 671 100.0% 139 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 451 67.2% 81 58.3% 0 N/A% 0 N/A%
unserialize0 N/A% 216 32.2% 18 12.9% 0 N/A% 0 N/A%
explode0 N/A% 5 0.7% -1 -0.7% 0 N/A% 0 N/A%