Diff Report
Run #5198b3b171080: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198b38f0f1d5: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5198b3b171080Run #5198b38f0f1d5DiffDiff%
Number of Function Calls39 39 0 0.0%
Incl. Wall Time (microsec)15,459 15,330 -129 -0.8%
Incl. Wall Time (microsec) per call 396 393 -3 -0.8%
Excl. Wall Time (microsec)605 615 10 1.7%
Incl. CPU (microsecs)12,785 12,687 -98 -0.8%
Incl. CPU (microsecs) per call 328 325 -3 -0.8%
Excl. CPU (microsec)546 542 -4 -0.7%
Incl. MemUse (bytes)923,920 923,920 0 0.0%
Incl. MemUse (bytes) per call 23,690 23,690 0 0.0%
Excl. MemUse (bytes)-102,728 -102,728 0 0.0%
Incl. PeakMemUse (bytes)1,044,160 1,044,160 0 0.0%
Incl. PeakMemUse (bytes) per call 26,773 26,773 0 0.0%
Excl. PeakMemUse (bytes)3,112 3,112 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% -129 -307.1% -98 -181.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function10 7.8% -4 -4.1% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -129 -100.0% -98 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -226 -175.2% -34 -34.7% 0 N/A% 0 N/A%
unserialize0 N/A% 91 70.5% -61 -62.2% 0 N/A% 0 N/A%
explode0 N/A% -4 -3.1% 1 1.0% 0 N/A% 0 N/A%