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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (IGNITE-2264) Optimize GridDistributedTxMapping.
Date Thu, 31 Mar 2016 11:41:25 GMT

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

Vladimir Ozerov reassigned IGNITE-2264:
---------------------------------------

    Assignee: Vladimir Ozerov

> Optimize GridDistributedTxMapping.
> ----------------------------------
>
>                 Key: IGNITE-2264
>                 URL: https://issues.apache.org/jira/browse/IGNITE-2264
>             Project: Ignite
>          Issue Type: Sub-task
>          Components: cache
>    Affects Versions: ignite-1.4
>            Reporter: Vladimir Ozerov
>            Assignee: Vladimir Ozerov
>            Priority: Critical
>             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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