Diff Report
Run #556d0efcc18be: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #556d13edd0b22: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #556d0efcc18beRun #556d13edd0b22DiffDiff%
Number of Function Calls178 178 0 0.0%
Incl. Wall Time (microsec)40,216 38,393 -1,823 -4.5%
Incl. Wall Time (microsec) per call 226 216 -10 -4.5%
Excl. Wall Time (microsec)2,167 2,030 -137 -6.3%
Incl. MemUse (bytes)5,151,048 5,151,080 32 0.0%
Incl. MemUse (bytes) per call 28,938 28,939 0 0.0%
Excl. MemUse (bytes)-992,064 -992,064 0 0.0%
Incl. PeakMemUse (bytes)6,341,704 6,342,144 440 0.0%
Incl. PeakMemUse (bytes) per call 35,628 35,630 2 0.0%
Excl. PeakMemUse (bytes)1,024 1,024 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.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% -1,823 -5.7% 32 100.0% 440 107.8%
Exclusive Metrics Diff for Current Function-137 -7.5% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -1,823 -100.0% 32 100.0% 440 100.0%
Child functions
unserialize0 N/A% -1,452 -79.6% 32 100.0% 424 96.4%
Drupal\Core\Cache\DatabaseCacheTagsChecksum::isValid0 N/A% -216 -11.8% 0 0.0% 16 3.6%
explode0 N/A% -18 -1.0% 0 0.0% 0 0.0%