Diff Report
Run #519a6b3fa9c9c: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519a6c2cb620c: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519a6b3fa9c9cRun #519a6c2cb620cDiffDiff%
Number of Function Calls65 65 0 0.0%
Incl. Wall Time (microsec)15,717 15,313 -404 -2.6%
Incl. Wall Time (microsec) per call 242 236 -6 -2.6%
Excl. Wall Time (microsec)872 860 -12 -1.4%
Incl. CPU (microsecs)13,767 13,460 -307 -2.2%
Incl. CPU (microsecs) per call 212 207 -5 -2.2%
Excl. CPU (microsec)787 773 -14 -1.8%
Incl. MemUse (bytes)1,337,728 1,337,728 0 0.0%
Incl. MemUse (bytes) per call 20,580 20,580 0 0.0%
Excl. MemUse (bytes)-213,336 -213,336 0 0.0%
Incl. PeakMemUse (bytes)1,355,864 1,355,864 0 0.0%
Incl. PeakMemUse (bytes) per call 20,859 20,859 0 0.0%
Excl. PeakMemUse (bytes)3,984 3,984 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% -404 -51.7% -307 -40.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-12 -3.0% -14 -4.6% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -404 -100.0% -307 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -322 -79.7% -268 -87.3% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -68 -16.8% -21 -6.8% 0 N/A% 0 N/A%
explode0 N/A% -2 -0.5% -4 -1.3% 0 N/A% 0 N/A%