Diff Report
Run #53513afe3c568: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #535139ab6e707: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #53513afe3c568Run #535139ab6e707DiffDiff%
Number of Function Calls92 92 0 0.0%
Incl. Wall Time (microsec)26,727 26,967 240 0.9%
Incl. Wall Time (microsec) per call 291 293 3 0.9%
Excl. Wall Time (microsec)810 793 -17 -2.1%
Incl. CPU (microsecs)24,671 24,891 220 0.9%
Incl. CPU (microsecs) per call 268 271 2 0.9%
Excl. CPU (microsec)692 685 -7 -1.0%
Incl. MemUse (bytes)4,442,864 4,443,024 160 0.0%
Incl. MemUse (bytes) per call 48,292 48,294 2 0.0%
Excl. MemUse (bytes)-471,280 -471,248 32 0.0%
Incl. PeakMemUse (bytes)4,981,200 4,981,608 408 0.0%
Incl. PeakMemUse (bytes) per call 54,143 54,148 4 0.0%
Excl. PeakMemUse (bytes)5,536 5,600 64 1.2%

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% 240 4.3% 220 3.5% 160 0.7% 408 1.8%
Exclusive Metrics Diff for Current Function-17 -7.1% -7 -3.2% 32 20.0% 64 15.7%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 240 100.0% 220 100.0% 160 100.0% 408 100.0%
Child functions
unserialize0 N/A% 246 102.5% 232 105.5% 128 80.0% 312 76.5%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 13 5.4% -4 -1.8% 0 0.0% 32 7.8%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% -2 -0.8% -1 -0.5% 0 0.0% 0 0.0%
explode0 N/A% 0 0.0% 0 0.0% 0 0.0% 0 0.0%