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Posted to issues@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2016/03/31 13:42:25 UTC

[jira] [Updated] (IGNITE-2264) Optimize GridDistributedTxMapping.

     [ https://issues.apache.org/jira/browse/IGNITE-2264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Ozerov updated IGNITE-2264:
------------------------------------
    Issue Type: Task  (was: Sub-task)
        Parent:     (was: IGNITE-2232)

> Optimize GridDistributedTxMapping.
> ----------------------------------
>
>                 Key: IGNITE-2264
>                 URL: https://issues.apache.org/jira/browse/IGNITE-2264
>             Project: Ignite
>          Issue Type: Task
>          Components: cache
>    Affects Versions: ignite-1.4
>            Reporter: Vladimir Ozerov
>            Assignee: Vladimir Ozerov
>            Priority: Critical
>              Labels: performance
>             Fix For: 1.6
>
>
> This class has two methods: reads() and writes(). Together they return the whole set of entries. 
> The problem is that each call creates collection wrapper over entries + 1 additional iterator per each traverse over collection. This seen as a garbage "hotspot" in flight recorder.
> Actually there is no need for these methods. Instead, we can pass entries collection directly and filter entries manually.



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