Diff Report
Run #5198f0bb880ef: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198f219706e9: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5198f0bb880efRun #5198f219706e9DiffDiff%
Number of Function Calls99 99 0 0.0%
Incl. Wall Time (microsec)27,665 28,009 344 1.2%
Incl. Wall Time (microsec) per call 279 283 3 1.2%
Excl. Wall Time (microsec)1,561 1,578 17 1.1%
Incl. CPU (microsecs)22,819 23,051 232 1.0%
Incl. CPU (microsecs) per call 230 233 2 1.0%
Excl. CPU (microsec)1,406 1,436 30 2.1%
Incl. MemUse (bytes)2,135,488 2,135,488 0 0.0%
Incl. MemUse (bytes) per call 21,571 21,571 0 0.0%
Excl. MemUse (bytes)-292,104 -292,104 0 0.0%
Incl. PeakMemUse (bytes)2,200,192 2,200,192 0 0.0%
Incl. PeakMemUse (bytes) per call 22,224 22,224 0 0.0%
Excl. PeakMemUse (bytes)4,984 4,984 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% 344 747.8% 232 107.9% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function17 4.9% 30 12.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 344 100.0% 232 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 175 50.9% 118 50.9% 0 N/A% 0 N/A%
unserialize0 N/A% 148 43.0% 88 37.9% 0 N/A% 0 N/A%
explode0 N/A% 4 1.2% -4 -1.7% 0 N/A% 0 N/A%