Diff Report
Run #5240420daae43: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #524042daedba9: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5240420daae43Run #524042daedba9DiffDiff%
Number of Function Calls108 108 0 0.0%
Incl. Wall Time (microsec)17,560 17,560 0 0.0%
Incl. Wall Time (microsec) per call 163 163 0 0.0%
Excl. Wall Time (microsec)2,075 2,045 -30 -1.4%
Incl. CPU (microsecs)15,285 15,279 -6 -0.0%
Incl. CPU (microsecs) per call 142 141 -0 -0.0%
Excl. CPU (microsec)1,910 1,897 -13 -0.7%
Incl. MemUse (bytes)1,915,424 1,915,800 376 0.0%
Incl. MemUse (bytes) per call 17,735 17,739 3 0.0%
Excl. MemUse (bytes)-295,272 -295,344 -72 -0.0%
Incl. PeakMemUse (bytes)2,300,760 2,301,080 320 0.0%
Incl. PeakMemUse (bytes) per call 21,303 21,306 3 0.0%
Excl. PeakMemUse (bytes)7,328 7,328 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% 0 0.0% -6 -0.1% 376 0.9% 320 0.7%
Exclusive Metrics Diff for Current Function-30 N/A% -13 -216.7% -72 -19.1% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 0 N/A% -6 -100.0% 376 100.0% 320 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 15 N/A% 5 83.3% 0 0.0% 256 80.0%
unserialize0 N/A% 8 N/A% -11 -183.3% 448 119.1% 64 20.0%
explode0 N/A% 7 N/A% 13 216.7% 0 0.0% 0 0.0%