Diff Report
Run #519fc53e46a65: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fc817b51ae: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519fc53e46a65Run #519fc817b51aeDiffDiff%
Number of Function Calls68 68 0 0.0%
Incl. Wall Time (microsec)7,905 6,999 -906 -11.5%
Incl. Wall Time (microsec) per call 116 103 -13 -11.5%
Excl. Wall Time (microsec)654 616 -38 -5.8%
Incl. CPU (microsecs)8,000 8,000 0 0.0%
Incl. CPU (microsecs) per call 118 118 0 0.0%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)1,495,624 1,495,624 0 0.0%
Incl. MemUse (bytes) per call 21,994 21,994 0 0.0%
Excl. MemUse (bytes)-189,752 -189,752 0 0.0%
Incl. PeakMemUse (bytes)1,967,512 1,967,512 0 0.0%
Incl. PeakMemUse (bytes) per call 28,934 28,934 0 0.0%
Excl. PeakMemUse (bytes)6,504 6,504 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% -906 -19.9% 0 0.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-38 -4.2% 0 N/A% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -906 -100.0% 0 N/A% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -652 -72.0% 0 N/A% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -216 -23.8% 0 N/A% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 N/A% 0 N/A% 0 N/A%