Diff Report
Run #5391fc871e91d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #5391fcf6ab927: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5391fc871e91dRun #5391fcf6ab927DiffDiff%
Number of Function Calls65 65 0 0.0%
Incl. Wall Time (microsec)28,382 27,902 -480 -1.7%
Incl. Wall Time (microsec) per call 437 429 -7 -1.7%
Excl. Wall Time (microsec)1,286 1,288 2 0.2%
Incl. CPU (microsecs)22,079 21,897 -182 -0.8%
Incl. CPU (microsecs) per call 340 337 -3 -0.8%
Excl. CPU (microsec)1,159 1,190 31 2.7%
Incl. MemUse (bytes)1,224,800 1,224,800 0 0.0%
Incl. MemUse (bytes) per call 18,843 18,843 0 0.0%
Excl. MemUse (bytes)-327,964 -327,964 0 0.0%
Incl. PeakMemUse (bytes)1,588,944 1,588,944 0 0.0%
Incl. PeakMemUse (bytes) per call 24,445 24,445 0 0.0%
Excl. PeakMemUse (bytes)2,224 2,224 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% -480 -29.2% -182 -12.1% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function2 0.4% 31 17.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -480 -100.0% -182 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -569 -118.5% -132 -72.5% 0 N/A% 0 N/A%
unserialize0 N/A% 105 21.9% -57 -31.3% 0 N/A% 0 N/A%
explode0 N/A% -18 -3.8% -24 -13.2% 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%