Diff Report
Run #518eceb4aac68: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518ed10e385b9: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #518eceb4aac68Run #518ed10e385b9DiffDiff%
Number of Function Calls67 67 0 0.0%
Incl. Wall Time (microsec)17,516 18,062 546 3.1%
Incl. Wall Time (microsec) per call 261 270 8 3.1%
Excl. Wall Time (microsec)1,026 1,018 -8 -0.8%
Incl. CPU (microsecs)14,445 14,449 4 0.0%
Incl. CPU (microsecs) per call 216 216 0 0.0%
Excl. CPU (microsec)946 926 -20 -2.1%
Incl. MemUse (bytes)1,326,632 1,326,632 0 0.0%
Incl. MemUse (bytes) per call 19,800 19,800 0 0.0%
Excl. MemUse (bytes)-146,784 -146,784 0 0.0%
Incl. PeakMemUse (bytes)1,816,968 1,816,968 0 0.0%
Incl. PeakMemUse (bytes) per call 27,119 27,119 0 0.0%
Excl. PeakMemUse (bytes)7,624 7,624 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% 546 2275.0% 4 0.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-8 -1.5% -20 -500.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 546 100.0% 4 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 299 54.8% 28 700.0% 0 N/A% 0 N/A%
unserialize0 N/A% 254 46.5% -3 -75.0% 0 N/A% 0 N/A%
explode0 N/A% 1 0.2% -1 -25.0% 0 N/A% 0 N/A%