Diff Report
Run #519d9d52c2102: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d9cf28420e: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519d9d52c2102Run #519d9cf28420eDiffDiff%
Number of Function Calls108 108 0 0.0%
Incl. Wall Time (microsec)25,897 25,953 56 0.2%
Incl. Wall Time (microsec) per call 240 240 1 0.2%
Excl. Wall Time (microsec)1,674 1,656 -18 -1.1%
Incl. CPU (microsecs)22,748 22,743 -5 -0.0%
Incl. CPU (microsecs) per call 211 211 -0 -0.0%
Excl. CPU (microsec)1,545 1,520 -25 -1.6%
Incl. MemUse (bytes)2,457,560 2,457,560 0 0.0%
Incl. MemUse (bytes) per call 22,755 22,755 0 0.0%
Excl. MemUse (bytes)-320,760 -320,760 0 0.0%
Incl. PeakMemUse (bytes)2,672,352 2,672,352 0 0.0%
Incl. PeakMemUse (bytes) per call 24,744 24,744 0 0.0%
Excl. PeakMemUse (bytes)6,872 6,872 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% 56 25.3% -5 -0.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-18 -32.1% -25 -500.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 56 100.0% -5 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 127 226.8% 32 640.0% 0 N/A% 0 N/A%
unserialize0 N/A% -59 -105.4% -18 -360.0% 0 N/A% 0 N/A%
explode0 N/A% 6 10.7% 6 120.0% 0 N/A% 0 N/A%