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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51981e3ae1e6cRun #51981beb768adDiffDiff%
Number of Function Calls75 75 0 0.0%
Incl. Wall Time (microsec)29,159 29,059 -100 -0.3%
Incl. Wall Time (microsec) per call 389 387 -1 -0.3%
Excl. Wall Time (microsec)1,239 1,232 -7 -0.6%
Incl. CPU (microsecs)24,320 24,285 -35 -0.1%
Incl. CPU (microsecs) per call 324 324 -0 -0.1%
Excl. CPU (microsec)1,115 1,107 -8 -0.7%
Incl. MemUse (bytes)1,944,176 1,944,184 8 0.0%
Incl. MemUse (bytes) per call 25,922 25,922 0 0.0%
Excl. MemUse (bytes)-170,720 -170,728 -8 -0.0%
Incl. PeakMemUse (bytes)2,255,496 2,255,728 232 0.0%
Incl. PeakMemUse (bytes) per call 30,073 30,076 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 Function-7 -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%