Diff Report
Run #51a287c51097c: 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 #51a287c51097cRun #51a287416d8a8DiffDiff%
Number of Function Calls72 72 0 0.0%
Incl. Wall Time (microsec)17,599 16,951 -648 -3.7%
Incl. Wall Time (microsec) per call 244 235 -9 -3.7%
Excl. Wall Time (microsec)953 940 -13 -1.4%
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)1,336,808 1,336,808 0 0.0%
Incl. MemUse (bytes) per call 18,567 18,567 0 0.0%
Excl. MemUse (bytes)-180,000 -180,000 0 0.0%
Incl. PeakMemUse (bytes)1,338,472 1,338,472 0 0.0%
Incl. PeakMemUse (bytes) per call 18,590 18,590 0 0.0%
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% -648 -60.3% 20,000 N/A% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-13 -2.0% 4,000 20.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -648 -100.0% 20,000 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -529 -81.6% 16,000 80.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -103 -15.9% 0 0.0% 0 N/A% 0 N/A%
explode0 N/A% -3 -0.5% 0 0.0% 0 N/A% 0 N/A%