[infinispan-issues] [JBoss JIRA] (ISPN-8422) Investigate removal of hashCode from memory block and rely solely on equals

[Dan Berindei (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-8422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13482768#comment-13482768 ] 

Dan Berindei commented on ISPN-8422:
------------------------------------

-1 to use VInt. The number of locks is fixed, so we can decide what number of bytes to use on startup.

> Investigate removal of hashCode from memory block and rely solely on equals
> ---------------------------------------------------------------------------
>
>                 Key: ISPN-8422
>                 URL: https://issues.jboss.org/browse/ISPN-8422
>             Project: Infinispan
>          Issue Type: Sub-task
>            Reporter: William Burns
>            Assignee: William Burns
>             Fix For: 9.2.0.Beta1
>
>
> We could remove the hashCode 4 bytes taking up space in the allocated memory block. Currently this is only used for eviction, maybe instead we could write a VInt that says which offset of locks to use. In majority of cases <= 64 cores this will result in saving 3 bytes per entry.



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