Diff Report
Run #53920b950c201: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #53920bd97d62d: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #53920b950c201Run #53920bd97d62dDiffDiff%
Number of Function Calls44 44 0 0.0%
Incl. Wall Time (microsec)23,079 22,905 -174 -0.8%
Incl. Wall Time (microsec) per call 525 521 -4 -0.8%
Excl. Wall Time (microsec)869 894 25 2.9%
Incl. CPU (microsecs)18,252 18,185 -67 -0.4%
Incl. CPU (microsecs) per call 415 413 -2 -0.4%
Excl. CPU (microsec)797 787 -10 -1.3%
Incl. MemUse (bytes)1,129,536 1,129,536 0 0.0%
Incl. MemUse (bytes) per call 25,671 25,671 0 0.0%
Excl. MemUse (bytes)-292,376 -292,376 0 0.0%
Incl. PeakMemUse (bytes)1,493,456 1,493,456 0 0.0%
Incl. PeakMemUse (bytes) per call 33,942 33,942 0 0.0%
Excl. PeakMemUse (bytes)1,876 1,876 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% -174 -38.2% -67 -15.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function25 14.4% -10 -14.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -174 -100.0% -67 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -380 -218.4% -197 -294.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 180 103.4% 139 207.5% 0 N/A% 0 N/A%
explode0 N/A% 3 1.7% 4 6.0% 0 N/A% 0 N/A%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% -2 -1.1% -3 -4.5% 0 N/A% 0 N/A%