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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519eadc55e057Run #519ead70538d1DiffDiff%
Number of Function Calls112 112 0 0.0%
Incl. Wall Time (microsec)37,178 36,858 -320 -0.9%
Incl. Wall Time (microsec) per call 332 329 -3 -0.9%
Excl. Wall Time (microsec)2,388 2,317 -71 -3.0%
Incl. CPU (microsecs)31,595 31,409 -186 -0.6%
Incl. CPU (microsecs) per call 282 280 -2 -0.6%
Excl. CPU (microsec)2,202 2,157 -45 -2.0%
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 Function-71 -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%