Diff Report
Run #51981beb768ad: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51981e3ae1e6c: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51981beb768adRun #51981e3ae1e6cDiffDiff%
Number of Function Calls75 75 0 0.0%
Incl. Wall Time (microsec)29,059 29,159 100 0.3%
Incl. Wall Time (microsec) per call 387 389 1 0.3%
Excl. Wall Time (microsec)1,232 1,239 7 0.6%
Incl. CPU (microsecs)24,285 24,320 35 0.1%
Incl. CPU (microsecs) per call 324 324 0 0.1%
Excl. CPU (microsec)1,107 1,115 8 0.7%
Incl. MemUse (bytes)1,944,184 1,944,176 -8 -0.0%
Incl. MemUse (bytes) per call 25,922 25,922 -0 -0.0%
Excl. MemUse (bytes)-170,728 -170,720 8 0.0%
Incl. PeakMemUse (bytes)2,255,728 2,255,496 -232 -0.0%
Incl. PeakMemUse (bytes) per call 30,076 30,073 -3 -0.0%
Excl. PeakMemUse (bytes)5,400 5,400 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% 100 81.3% 35 6.6% -8 -0.0% -232 -0.8%
Exclusive Metrics Diff for Current Function7 7.0% 8 22.9% 8 100.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 100 100.0% 35 100.0% -8 -100.0% -232 -100.0%
Child functions
unserialize0 N/A% 123 123.0% 33 94.3% -16 -200.0% -264 -113.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -28 -28.0% -3 -8.6% 0 0.0% 32 13.8%
explode0 N/A% -2 -2.0% -3 -8.6% 0 0.0% 0 0.0%