[infinispan-issues] [JBoss JIRA] (ISPN-8655) Off Heap Size Estimataion rounds improperly

[William Burns (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-8655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on ISPN-8655 started by William Burns.
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> Off Heap Size Estimataion rounds improperly
> -------------------------------------------
>
>                 Key: ISPN-8655
>                 URL: https://issues.jboss.org/browse/ISPN-8655
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Off Heap
>    Affects Versions: 9.1.4.Final
>            Reporter: William Burns
>            Assignee: William Burns
>             Fix For: 9.2.0.CR1, 9.1.5.Final
>
>
> UnpooledOffHeapMemoryAllocator.estimateSizeOverhead was supposed to round up to the nearest 16. Unfortunately it is rounding improperly. Instead of adding 15 and modding by 15 it is instead adding 15 and modding by hex 15 (or 21 in base 10). This causes it to not work in many cases.
> https://github.com/infinispan/infinispan/blob/master/core/src/main/java/org/infinispan/container/offheap/UnpooledOffHeapMemoryAllocator.java#L75



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