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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #535139ab6e707Run #53513afe3c568DiffDiff%
Number of Function Calls92 92 0 0.0%
Incl. Wall Time (microsec)26,967 26,727 -240 -0.9%
Incl. Wall Time (microsec) per call 293 291 -3 -0.9%
Excl. Wall Time (microsec)793 810 17 2.1%
Incl. CPU (microsecs)24,891 24,671 -220 -0.9%
Incl. CPU (microsecs) per call 271 268 -2 -0.9%
Excl. CPU (microsec)685 692 7 1.0%
Incl. MemUse (bytes)4,443,024 4,442,864 -160 -0.0%
Incl. MemUse (bytes) per call 48,294 48,292 -2 -0.0%
Excl. MemUse (bytes)-471,248 -471,280 -32 -0.0%
Incl. PeakMemUse (bytes)4,981,608 4,981,200 -408 -0.0%
Incl. PeakMemUse (bytes) per call 54,148 54,143 -4 -0.0%
Excl. PeakMemUse (bytes)5,600 5,536 -64 -1.1%

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 Function17 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%