Diff Report
Run #519d45a7cd8f5: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d44ffb3845: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519d45a7cd8f5Run #519d44ffb3845DiffDiff%
Number of Function Calls107 107 0 0.0%
Incl. Wall Time (microsec)37,715 37,827 112 0.3%
Incl. Wall Time (microsec) per call 352 354 1 0.3%
Excl. Wall Time (microsec)2,329 2,372 43 1.8%
Incl. CPU (microsecs)31,759 31,867 108 0.3%
Incl. CPU (microsecs) per call 297 298 1 0.3%
Excl. CPU (microsec)2,152 2,219 67 3.1%
Incl. MemUse (bytes)1,134,260 1,134,260 0 0.0%
Incl. MemUse (bytes) per call 10,601 10,601 0 0.0%
Excl. MemUse (bytes)-320,832 -320,832 0 0.0%
Incl. PeakMemUse (bytes)1,514,968 1,514,968 0 0.0%
Incl. PeakMemUse (bytes) per call 14,159 14,159 0 0.0%
Excl. PeakMemUse (bytes)5,852 5,852 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% 112 4.8% 108 23.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function43 38.4% 67 62.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 112 100.0% 108 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 95 84.8% 76 70.4% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -30 -26.8% -28 -25.9% 0 N/A% 0 N/A%
explode0 N/A% 4 3.6% -7 -6.5% 0 N/A% 0 N/A%