Diff Report
Run #51ec5cfb002ea: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec5ca916d7d: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ec5cfb002eaRun #51ec5ca916d7dDiffDiff%
Number of Function Calls105 105 0 0.0%
Incl. Wall Time (microsec)18,796 18,408 -388 -2.1%
Incl. Wall Time (microsec) per call 179 175 -4 -2.1%
Excl. Wall Time (microsec)1,295 1,323 28 2.2%
Incl. CPU (microsecs)17,198 17,381 183 1.1%
Incl. CPU (microsecs) per call 164 166 2 1.1%
Excl. CPU (microsec)1,204 1,213 9 0.7%
Incl. MemUse (bytes)2,791,120 2,791,120 0 0.0%
Incl. MemUse (bytes) per call 26,582 26,582 0 0.0%
Excl. MemUse (bytes)-392,912 -392,912 0 0.0%
Incl. PeakMemUse (bytes)3,341,632 3,341,632 0 0.0%
Incl. PeakMemUse (bytes) per call 31,825 31,825 0 0.0%
Excl. PeakMemUse (bytes)9,112 9,112 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% -388 -24.8% 183 186.7% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function28 7.2% 9 4.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -388 -100.0% 183 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -414 -106.7% -23 -12.6% 0 N/A% 0 N/A%
explode0 N/A% -2 -0.5% -2 -1.1% 0 N/A% 0 N/A%
unserialize0 N/A% 0 0.0% 199 108.7% 0 N/A% 0 N/A%