Diff Report
Run #53920c043e98b: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #53920b950c201: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #53920c043e98bRun #53920b950c201DiffDiff%
Number of Function Calls44 44 0 0.0%
Incl. Wall Time (microsec)23,446 23,079 -367 -1.6%
Incl. Wall Time (microsec) per call 533 525 -8 -1.6%
Excl. Wall Time (microsec)903 869 -34 -3.8%
Incl. CPU (microsecs)18,472 18,252 -220 -1.2%
Incl. CPU (microsecs) per call 420 415 -5 -1.2%
Excl. CPU (microsec)812 797 -15 -1.8%
Incl. MemUse (bytes)1,129,784 1,129,536 -248 -0.0%
Incl. MemUse (bytes) per call 25,677 25,671 -6 -0.0%
Excl. MemUse (bytes)-292,496 -292,376 120 0.0%
Incl. PeakMemUse (bytes)1,493,840 1,493,456 -384 -0.0%
Incl. PeakMemUse (bytes) per call 33,951 33,942 -9 -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% -367 -102.5% -220 -117.6% -248 -2.4% -384 -3.7%
Exclusive Metrics Diff for Current Function-34 -9.3% -15 -6.8% 120 48.4% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -367 -100.0% -220 -100.0% -248 -100.0% -384 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -345 -94.0% -122 -55.5% 0 0.0% -116 -30.2%
unserialize0 N/A% 7 1.9% -91 -41.4% -368 -148.4% -268 -69.8%
explode0 N/A% 4 1.1% 6 2.7% 0 0.0% 0 0.0%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% 1 0.3% 2 0.9% 0 0.0% 0 0.0%