Diff Report
Run #518b13c95a609: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518b14dd8356b: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #518b13c95a609Run #518b14dd8356bDiffDiff%
Number of Function Calls123 123 0 0.0%
Incl. Wall Time (microsec)23,949 24,443 494 2.1%
Incl. Wall Time (microsec) per call 195 199 4 2.1%
Excl. Wall Time (microsec)1,566 1,545 -21 -1.3%
Incl. CPU (microsecs)19,762 20,551 789 4.0%
Incl. CPU (microsecs) per call 161 167 6 4.0%
Excl. CPU (microsec)1,388 1,361 -27 -1.9%
Incl. MemUse (bytes)1,525,632 1,525,632 0 0.0%
Incl. MemUse (bytes) per call 12,404 12,404 0 0.0%
Excl. MemUse (bytes)-284,488 -284,488 0 0.0%
Incl. PeakMemUse (bytes)2,225,928 2,225,928 0 0.0%
Incl. PeakMemUse (bytes) per call 18,097 18,097 0 0.0%
Excl. PeakMemUse (bytes)7,648 7,648 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% 494 61.8% 789 121.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-21 -4.3% -27 -3.4% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 494 100.0% 789 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 453 91.7% 131 16.6% 0 N/A% 0 N/A%
unserialize0 N/A% 67 13.6% 694 88.0% 0 N/A% 0 N/A%
explode0 N/A% -5 -1.0% -9 -1.1% 0 N/A% 0 N/A%