Diff Report
Run #5219624c55207: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #521962a927d49: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5219624c55207Run #521962a927d49DiffDiff%
Number of Function Calls70 70 0 0.0%
Incl. Wall Time (microsec)7,576 7,686 110 1.5%
Incl. Wall Time (microsec) per call 108 110 2 1.5%
Excl. Wall Time (microsec)1,040 989 -51 -4.9%
Incl. CPU (microsecs)6,392 6,478 86 1.3%
Incl. CPU (microsecs) per call 91 93 1 1.3%
Excl. CPU (microsec)944 910 -34 -3.6%
Incl. MemUse (bytes)1,131,576 1,132,312 736 0.1%
Incl. MemUse (bytes) per call 16,165 16,176 11 0.1%
Excl. MemUse (bytes)-182,128 -182,280 -152 -0.1%
Incl. PeakMemUse (bytes)1,473,520 1,485,424 11,904 0.8%
Incl. PeakMemUse (bytes) per call 21,050 21,220 170 0.8%
Excl. PeakMemUse (bytes)6,488 6,320 -168 -2.6%

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% 110 23.7% 86 9.1% 736 2.6% 11,904 40.4%
Exclusive Metrics Diff for Current Function-51 -46.4% -34 -39.5% -152 -20.7% -168 -1.4%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 110 100.0% 86 100.0% 736 100.0% 11,904 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 106 96.4% 67 77.9% 0 0.0% -216 -1.8%
unserialize0 N/A% 54 49.1% 55 64.0% 888 120.7% 12,336 103.6%
explode0 N/A% 1 0.9% -2 -2.3% 0 0.0% -48 -0.4%