Diff Report
Run #51a28832b7403: XHProf Run (Namespace=drupal-perf-trevorbradley)
vs.
Run #51a287416d8a8: XHProf Run (Namespace=drupal-perf-trevorbradley)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51a28832b7403Run #51a287416d8a8DiffDiff%
Number of Function Calls72 72 0 0.0%
Incl. Wall Time (microsec)17,456 16,951 -505 -2.9%
Incl. Wall Time (microsec) per call 242 235 -7 -2.9%
Excl. Wall Time (microsec)948 940 -8 -0.8%
Incl. CPU (microsecs)16,000 36,000 20,000 125.0%
Incl. CPU (microsecs) per call 222 500 278 125.0%
Excl. CPU (microsec)0 4,000 4,000 N/A%
Incl. MemUse (bytes)1,338,656 1,336,808 -1,848 -0.1%
Incl. MemUse (bytes) per call 18,592 18,567 -26 -0.1%
Excl. MemUse (bytes)-180,336 -180,000 336 0.2%
Incl. PeakMemUse (bytes)1,349,408 1,338,472 -10,936 -0.8%
Incl. PeakMemUse (bytes) per call 18,742 18,590 -152 -0.8%
Excl. PeakMemUse (bytes)3,992 3,992 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% -505 -14.3% 20,000 500.0% -1,848 -2.7% -10,936 -2.1%
Exclusive Metrics Diff for Current Function-8 -1.6% 4,000 20.0% 336 18.2% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -505 -100.0% 20,000 100.0% -1,848 -100.0% -10,936 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -284 -56.2% 4,000 20.0% -16 -0.9% -1,064 -9.7%
unserialize0 N/A% -214 -42.4% 12,000 60.0% -2,160 -116.9% -9,872 -90.3%
explode0 N/A% 1 0.2% 0 0.0% -8 -0.4% 0 0.0%