Diff Report
Run #51b032b631491: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51b0336932f18: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51b032b631491Run #51b0336932f18DiffDiff%
Number of Function Calls79 79 0 0.0%
Incl. Wall Time (microsec)19,349 20,128 779 4.0%
Incl. Wall Time (microsec) per call 245 255 10 4.0%
Excl. Wall Time (microsec)1,446 1,462 16 1.1%
Incl. CPU (microsecs)15,348 15,546 198 1.3%
Incl. CPU (microsecs) per call 194 197 3 1.3%
Excl. CPU (microsec)1,314 1,334 20 1.5%
Incl. MemUse (bytes)1,605,640 1,605,640 0 0.0%
Incl. MemUse (bytes) per call 20,325 20,325 0 0.0%
Excl. MemUse (bytes)-217,928 -217,928 0 0.0%
Incl. PeakMemUse (bytes)1,732,608 1,732,608 0 0.0%
Incl. PeakMemUse (bytes) per call 21,932 21,932 0 0.0%
Excl. PeakMemUse (bytes)4,048 4,048 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% 779 341.7% 198 1.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function16 2.1% 20 10.1% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 779 100.0% 198 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 731 93.8% 336 169.7% 0 N/A% 0 N/A%
unserialize0 N/A% 27 3.5% -168 -84.8% 0 N/A% 0 N/A%
explode0 N/A% 5 0.6% 10 5.1% 0 N/A% 0 N/A%