Diff Report
Run #518eee9367b5d: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518eefcaea15f: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #518eee9367b5dRun #518eefcaea15fDiffDiff%
Number of Function Calls72 72 0 0.0%
Incl. Wall Time (microsec)20,891 21,188 297 1.4%
Incl. Wall Time (microsec) per call 290 294 4 1.4%
Excl. Wall Time (microsec)1,096 1,071 -25 -2.3%
Incl. CPU (microsecs)17,044 17,458 414 2.4%
Incl. CPU (microsecs) per call 237 242 6 2.4%
Excl. CPU (microsec)991 985 -6 -0.6%
Incl. MemUse (bytes)1,545,920 1,545,920 0 0.0%
Incl. MemUse (bytes) per call 21,471 21,471 0 0.0%
Excl. MemUse (bytes)-197,352 -197,352 0 0.0%
Incl. PeakMemUse (bytes)2,147,464 2,147,464 0 0.0%
Incl. PeakMemUse (bytes) per call 29,826 29,826 0 0.0%
Excl. PeakMemUse (bytes)6,784 6,784 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% 297 450.0% 414 47.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-25 -8.4% -6 -1.4% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 297 100.0% 414 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 176 59.3% 331 80.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 136 45.8% 82 19.8% 0 N/A% 0 N/A%
explode0 N/A% 10 3.4% 7 1.7% 0 N/A% 0 N/A%