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https://issues.apache.org/jira/browse/IGNITE-104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14638375#comment-14638375
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Valentin Kulichenko commented on IGNITE-104:
--------------------------------------------

Additionally we can skip deferred delete in this new mode, because updates are 
never reordered. This can give slight performance improvement.

> Need to enable thread-per-partition mode for atomic caches
> ----------------------------------------------------------
>
>                 Key: IGNITE-104
>                 URL: https://issues.apache.org/jira/browse/IGNITE-104
>             Project: Ignite
>          Issue Type: Improvement
>          Components: cache
>            Reporter: Dmitriy Setrakyan
>            Assignee: Valentin Kulichenko
>            Priority: Critical
>
> Currently messages are processed in any order for atomic caches. We can add 
> ordered processing by assigning a thread per partition. This way we will be 
> able to remove any locking as well.
> {{Cache.invoke()}} method would be able to invoke the EntryProcessor on 
> primary and backup independently. Right now we only invoke the EntryProcessor 
> only on the primary node and the send the computed value to the backup node, 
> which may be expensive.



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