Diff Report
Run #51ba946b609ed: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51ba929760d1b: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ba946b609edRun #51ba929760d1bDiffDiff%
Number of Function Calls43 43 0 0.0%
Incl. Wall Time (microsec)10,408 9,877 -531 -5.1%
Incl. Wall Time (microsec) per call 242 230 -12 -5.1%
Excl. Wall Time (microsec)787 744 -43 -5.5%
Incl. CPU (microsecs)8,882 8,354 -528 -5.9%
Incl. CPU (microsecs) per call 207 194 -12 -5.9%
Excl. CPU (microsec)684 656 -28 -4.1%
Incl. MemUse (bytes)1,733,176 1,733,344 168 0.0%
Incl. MemUse (bytes) per call 40,306 40,310 4 0.0%
Excl. MemUse (bytes)-330,856 -332,680 -1,824 -0.6%
Incl. PeakMemUse (bytes)1,550,744 1,768,000 217,256 14.0%
Incl. PeakMemUse (bytes) per call 36,064 41,116 5,052 14.0%
Excl. PeakMemUse (bytes)2,336 2,320 -16 -0.7%

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% -531 -0.1% -528 -0.1% 168 0.0% 217,256 0.9%
Exclusive Metrics Diff for Current Function-43 -8.1% -28 -5.3% -1,824 -1085.7% -16 -0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -531 -100.0% -528 -100.0% 168 100.0% 217,256 100.0%
Child functions
unserialize0 N/A% -412 -77.6% -413 -78.2% 2,144 1276.2% 205,816 94.7%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -69 -13.0% -76 -14.4% -120 -71.4% 11,424 5.3%
explode0 N/A% -7 -1.3% -11 -2.1% -32 -19.0% 32 0.0%