Diff Report
Run #519ead70538d1: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eadc55e057: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519ead70538d1Run #519eadc55e057DiffDiff%
Number of Function Calls112 112 0 0.0%
Incl. Wall Time (microsec)36,858 37,178 320 0.9%
Incl. Wall Time (microsec) per call 329 332 3 0.9%
Excl. Wall Time (microsec)2,317 2,388 71 3.1%
Incl. CPU (microsecs)31,409 31,595 186 0.6%
Incl. CPU (microsecs) per call 280 282 2 0.6%
Excl. CPU (microsec)2,157 2,202 45 2.1%
Incl. MemUse (bytes)1,027,716 1,027,716 0 0.0%
Incl. MemUse (bytes) per call 9,176 9,176 0 0.0%
Excl. MemUse (bytes)-289,988 -289,988 0 0.0%
Incl. PeakMemUse (bytes)1,468,080 1,468,080 0 0.0%
Incl. PeakMemUse (bytes) per call 13,108 13,108 0 0.0%
Excl. PeakMemUse (bytes)5,512 5,512 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% 320 24.4% 186 79.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function71 22.2% 45 24.2% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 320 100.0% 186 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 278 86.9% -11 -5.9% 0 N/A% 0 N/A%
unserialize0 N/A% -33 -10.3% 142 76.3% 0 N/A% 0 N/A%
explode0 N/A% 4 1.2% 10 5.4% 0 N/A% 0 N/A%