Diff Report
Run #5198b38f0f1d5: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198b3cd5c9c1: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5198b38f0f1d5Run #5198b3cd5c9c1DiffDiff%
Number of Function Calls39 39 0 0.0%
Incl. Wall Time (microsec)15,330 15,806 476 3.1%
Incl. Wall Time (microsec) per call 393 405 12 3.1%
Excl. Wall Time (microsec)615 594 -21 -3.4%
Incl. CPU (microsecs)12,687 12,587 -100 -0.8%
Incl. CPU (microsecs) per call 325 323 -3 -0.8%
Excl. CPU (microsec)542 509 -33 -6.1%
Incl. MemUse (bytes)923,920 923,960 40 0.0%
Incl. MemUse (bytes) per call 23,690 23,691 1 0.0%
Excl. MemUse (bytes)-102,728 -102,728 0 0.0%
Incl. PeakMemUse (bytes)1,044,160 1,044,240 80 0.0%
Incl. PeakMemUse (bytes) per call 26,773 26,775 2 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% 476 103.7% -100 -36.1% 40 0.1% 80 0.2%
Exclusive Metrics Diff for Current Function-21 -4.4% -33 -33.0% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 476 100.0% -100 -100.0% 40 100.0% 80 100.0%
Child functions
unserialize0 N/A% 285 59.9% -84 -84.0% 32 80.0% 80 100.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 218 45.8% 26 26.0% 0 0.0% 0 0.0%
explode0 N/A% -6 -1.3% -9 -9.0% 8 20.0% 0 0.0%