Diff Report
Run #531ee626b79e4: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #531ee5f3237b0: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #531ee626b79e4Run #531ee5f3237b0DiffDiff%
Number of Function Calls82 82 0 0.0%
Incl. Wall Time (microsec)11,667 11,706 39 0.3%
Incl. Wall Time (microsec) per call 142 143 0 0.3%
Excl. Wall Time (microsec)849 848 -1 -0.1%
Incl. CPU (microsecs)10,284 10,378 94 0.9%
Incl. CPU (microsecs) per call 125 127 1 0.9%
Excl. CPU (microsec)719 745 26 3.6%
Incl. MemUse (bytes)2,140,432 2,140,432 0 0.0%
Incl. MemUse (bytes) per call 26,103 26,103 0 0.0%
Excl. MemUse (bytes)-281,264 -281,264 0 0.0%
Incl. PeakMemUse (bytes)2,600,536 2,600,536 0 0.0%
Incl. PeakMemUse (bytes) per call 31,714 31,714 0 0.0%
Excl. PeakMemUse (bytes)8,240 8,240 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% 39 27.5% 94 26.4% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-1 -2.6% 26 27.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 39 100.0% 94 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 120 307.7% 112 119.1% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -75 -192.3% -39 -41.5% 0 N/A% 0 N/A%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% -5 -12.8% -6 -6.4% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 1 1.1% 0 N/A% 0 N/A%