[infinispan-issues] [JBoss JIRA] (ISPN-6003) Reduce number of allocations

[Dan Berindei (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-6003?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Berindei updated ISPN-6003:
-------------------------------
    Status: Open  (was: New)


> Reduce number of allocations
> ----------------------------
>
>                 Key: ISPN-6003
>                 URL: https://issues.jboss.org/browse/ISPN-6003
>             Project: Infinispan
>          Issue Type: Task
>          Components: Core, Server
>            Reporter: Dan Berindei
>            Assignee: Dan Berindei
>              Labels: performance
>             Fix For: 8.1.0.Final
>
>
> Profiling revealed some allocations that are easy to remove:
> * The HotRod operations factory stores a list of flags in a thread-local. The thread-local can be removed, and the flags can be stored in an {{int}}.
> * JGroupsTransport copies the list of members to check if a broadcast should be sent as a unicast, and the copy is then discarded.
> * ExtendedByteBuf could use {{Array.empty}} instead of {{Array[Byte]()}}.
> * DecoratedCache could avoid calling {{Arrays.asList()}}.



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