Diff Report
Run #52f5c520502f0: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5c5484cf48: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52f5c520502f0Run #52f5c5484cf48DiffDiff%
Number of Function Calls69 69 0 0.0%
Incl. Wall Time (microsec)5,932 5,842 -90 -1.5%
Incl. Wall Time (microsec) per call 86 85 -1 -1.5%
Excl. Wall Time (microsec)660 654 -6 -0.9%
Incl. CPU (microsecs)5,380 5,302 -78 -1.4%
Incl. CPU (microsecs) per call 78 77 -1 -1.4%
Excl. CPU (microsec)577 587 10 1.7%
Incl. MemUse (bytes)928,464 928,464 0 0.0%
Incl. MemUse (bytes) per call 13,456 13,456 0 0.0%
Excl. MemUse (bytes)-133,392 -133,392 0 0.0%
Incl. PeakMemUse (bytes)1,363,984 1,363,984 0 0.0%
Incl. PeakMemUse (bytes) per call 19,768 19,768 0 0.0%
Excl. PeakMemUse (bytes)7,976 7,976 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% -90 -13.7% -78 -13.9% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-6 -6.7% 10 12.8% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -90 -100.0% -78 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -51 -56.7% -55 -70.5% 0 N/A% 0 N/A%
unserialize0 N/A% -33 -36.7% -37 -47.4% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 4 5.1% 0 N/A% 0 N/A%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%