Diff Report
Run #539201f8938f4: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539203c57074d: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #539201f8938f4Run #539203c57074dDiffDiff%
Number of Function Calls52 52 0 0.0%
Incl. Wall Time (microsec)27,029 26,644 -385 -1.4%
Incl. Wall Time (microsec) per call 520 512 -7 -1.4%
Excl. Wall Time (microsec)1,072 1,022 -50 -4.7%
Incl. CPU (microsecs)22,303 21,744 -559 -2.5%
Incl. CPU (microsecs) per call 429 418 -11 -2.5%
Excl. CPU (microsec)950 898 -52 -5.5%
Incl. MemUse (bytes)1,406,688 1,406,688 0 0.0%
Incl. MemUse (bytes) per call 27,052 27,052 0 0.0%
Excl. MemUse (bytes)-382,760 -382,760 0 0.0%
Incl. PeakMemUse (bytes)1,849,024 1,849,024 0 0.0%
Incl. PeakMemUse (bytes) per call 35,558 35,558 0 0.0%
Excl. PeakMemUse (bytes)2,284 2,284 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% -385 -155.9% -559 -114.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-50 -13.0% -52 -9.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -385 -100.0% -559 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -450 -116.9% -359 -64.2% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 107 27.8% -157 -28.1% 0 N/A% 0 N/A%
explode0 N/A% 8 2.1% 9 1.6% 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%