Diff Report
Run #51ba929760d1b: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51ba93c3db76f: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ba929760d1bRun #51ba93c3db76fDiffDiff%
Number of Function Calls43 43 0 0.0%
Incl. Wall Time (microsec)9,877 9,683 -194 -2.0%
Incl. Wall Time (microsec) per call 230 225 -5 -2.0%
Excl. Wall Time (microsec)744 768 24 3.2%
Incl. CPU (microsecs)8,354 8,302 -52 -0.6%
Incl. CPU (microsecs) per call 194 193 -1 -0.6%
Excl. CPU (microsec)656 673 17 2.6%
Incl. MemUse (bytes)1,733,344 1,733,344 0 0.0%
Incl. MemUse (bytes) per call 40,310 40,310 0 0.0%
Excl. MemUse (bytes)-332,680 -332,680 0 0.0%
Incl. PeakMemUse (bytes)1,768,000 1,768,000 0 0.0%
Incl. PeakMemUse (bytes) per call 41,116 41,116 0 0.0%
Excl. PeakMemUse (bytes)2,320 2,320 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% -194 -27.3% -52 -4.1% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function24 12.4% 17 32.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -194 -100.0% -52 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -282 -145.4% -132 -253.8% 0 N/A% 0 N/A%
unserialize0 N/A% 60 30.9% 59 113.5% 0 N/A% 0 N/A%
explode0 N/A% 4 2.1% 4 7.7% 0 N/A% 0 N/A%